Aperion Verus Grand Center (x 2) vs. Ascend Sierra 2s vs. SVS Ultra Bookshelfs

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nickboros

Audioholic
Here is a long-winded three way comparison between one pair of speakers from Aperion, Ascend and SVS, that I finished on July 21, 2014. Hopefully this will be helpful for those trying to decide between the three speaker lines, like I was. The comparison isn’t the fairest it could have been, since there is quite a bit of price difference between the different lines of speakers. During the Aperion summer sale I could have purchased the floorstanding Verus Grands, for the same price as the Ascend Sierra 2s. However, I have some unique needs, where a tall tower speaker just won’t work. It would have been a very interesting comparison though. Instead I ordered the Verus Grand Center speakers to use as a stereo pair. The SVS speakers in the comparison were the Ultra bookshelf. SVS was at the biggest disadvantage in terms of price, though I am not sure going to the towers would have changed my decision. Marshall Guthrie, at Audioholics, pointed out in his review of the SVS bookshelf speakers that, “They retained the best of the towers, including composed and natural response even at high volumes, while sacrificing only the lower register in frequency response.” So going with the SVS towers will likely just give you more output capabilities (which I don’t need), probably a larger soundstage and a bit deeper extension (which I don’t need).

Thoughts on speakers

Background: I stared out with a Bose Acoustimax cubed surround sound setup and then added a real subwoofer, the Outlaw LFM-1 a couple of years later. When I realized how much I was missing (the gap between the sub and bass modules, and the bass module and the satellite speakers, etc. ) I started looking for some real speakers and came across the Axiom line of speakers. I finally settled on the M22v2s for fronts, VP150v2 for the center and Qs8v2 for surrounds. This was an enormous step up in performance. M22s were great, brutally honest speakers and the Qs8s worked very well as surround speakers. The VP150 is a poorly designed speaker. Off axis response is poor. Dialog in the sweet spot is muffled and hard to hear, sitting off center is worse. I was considering just swapping out the VP150 for a real center speaker, the VP160 which I bet would be a huge improvement, however the Axiom speakers to my ears were fatiguing. I have had the speakers in three different houses over the last 8 years and if I watch movies for 2 or more hours with the volume set just so that I can clearly hear dialog, then my ears would ring for the rest of the day and sometimes into the next day. It was sort of like when you go to a concert and everything is too loud, but to a somewhat lesser extent. This happened if I was listening to 5.1 material or just stereo material. All speakers were level matched with an SPL meter and often I even ran Audyssey MultEqxt and I would still get fatigue. I even tried trimming the high frequencies by 1,2,3 and 4 dB (thinking the speakers were bright) and it didn’t help. I liked the sound coming from the speakers (except the VP150), but they were fatiguing. Finally I broke down and just sold them all. I had enough.

Top list of my replacements were SVS Ultra bookshelves, Aperion Audio Verus grand three way center speakers (as a stereo pair) and the Sierra 2s. The sales associate at Aperion Audio agreed with me that the Verus grand center should be a step up from the Verus grand bookshelf. However, at SVS I was told the Ultra bookshelf has a better woofer than the ones in the Ultra center and he said he would recommend the bookshelf over the center speakers in a stereo setup. I would like have compared the Sierra Horizon with the Raal tweeter, but it is too far out of my budget and would not be at all a fair comparison with the other two brands. I am planning to have a home theater setup with a 2.35:1 aspect ratio screen in a 12 by 23 foot room with 8 foot ceilings. I am planning to have the screen take up nearly the entire 12 foot width of the room mounted to a false wall. So the speakers need to be of the form of a bookshelf or 3 way center with the tweeter over the midrange driver (I have had enough of poorly designed center speakers where all of the drivers are in a line horizontally) to easily center the tweeter vertically behind the screen and not worry about some of the woofers firing right into part of the false wall frame . As is probably clear, home theater is a priority to me, though I can’t get enough concert Blu-rays, when I can find artists I would like to listen to.

The number one trait of the replacements for the Axiom speakers I was looking for is it must be non-fatiguing at reasonable listening levels. By reasonable listening level, I mean that the volume is set so that I can hear the movie dialog is clearly discernible. I am also interested in an accurate reproduction of the material being played, flat frequency response, even off axis so that each seat in my future 2 row home theater is a good seat. I also would like the speaker to have good transient response, since that is a characteristic which goes along with accuracy. Anything on top of that is just a bonus. If the highs are airy, then great. If the midrange is choclately, then fantastic. J

Equipment: Onkyo 805, Oppo bdp 83, Roku 3, Outlaw LFM-1, Pioneer Kuro PDP 5080HD, Monoprice HDMI cables, Parts express oxygen free 12 gauge speaker wire (Soundking is the brand if I remember correctly), and the Sanus SF30B speaker stands.

All auditions are done in stereo audio, with a mixture of Blu-ray movies and TV shows, streamed Netflix content with stereo audio selected (it seems a little more dynamic and lifelike than the 5.1 mix on most content) and a few concert Blu-ray’s to see how various instruments and vocals (male and female) sound. Crossover set on my Onkyo 805 set to 80 Hz and Outlaw LFM 1 subwoofer handling the bass, with the distance to the main seat adjusted so that the phase is in line with the main speakers (procedure described at Rythmik Audio • Advice - phase alignment page 3 ). I spent about two weeks listening to the SVS speakers, five days listening to the Ascend speakers and 4 days listening to the Aperion speakers, in that order.

SVS Ultra Bookshelf (price approx. $1000 per pair):
· I chose the piano black finish. It is a gorgeous finish and look to speaker.
· Seems to be designed and built solidly. Speaker has a bit of heft to it.

Placement
· Speakers setup in golden triangle with relation to the main seat. I toed in the speakers a bit. I noticed a slight bit of difference with the toe in in the main seat, but did this mostly to help with the far off axis seats. It appears, as many other reviews have mentioned, these speakers have quite good off-axis response (probably somewhat like the Ascend Acoustics Sierra 1s).

Sound
These speakers produced a very neutral and uncolored sound. Movie and TV dialog comes across pretty clearly at listening levels that are not fatiguing, but sometimes it doesn’t sound sharp, or well defined. I even listened to a few scenes from Dark Night Rises to see if I could easily discern what Bane was saying without the need for subtitles. He came across quite clearly at a reasonable volume level. The sound seems to not emanate from the speaker, in other words, they disappear. When watching movies and TV shows conversations and dialog are just kind of there (not moving outward into the room, just up front like they should be). Background music comes out into the room, perhaps because it is ambient material. I did not notice this with surround effects, like rain, etc. though. These effects and sounds came out into the room about 3 or 4 feet. When the background music comes forward into the room it seems slightly disconnected from the rest of the sound which are right up front. Almost like when watching 3D content(outside of the well implemented kind like in Avatar) and it is like looking at a pop-up-book 3 or 4 discrete depths, rather than a continuous gradual transition in depth from one thing to the other. Listened to a few songs from the following concert Blu-rays: Joe Bonamassa: An Acoustic Evening at the Vienna Opera House, Elton John 60: Live at the Madison Square Garden, Jewel: The Essential Live Songbook. So I was ale to hear both male and female vocals, guitar and unplugged guitars, piano and several other instruments (mandolin, bongos, etc. on Joe Bonamassa disc). Everything sounded natural and uncolored, but I didn’t notice anything coming forward into the room, like the ambient crowd as surround effects, like I did with background music on movies and TV shows.

Ascend Acoustics Sierra 2 Bookshelf (price approx. $1500 per pair):
· I chose the natural finish. I absolutely love the look of the natural bamboo, which is also used to lower the cabinet resonance. AND it is a renewable material.
· Seems very solidly built
Placement
· I placed the speakers in exactly the same place the SVS speakers went. Same toe-in. I only slightly changed the level matching so that they blended with the subwoofer using my Radio Shack SPL meter.

Sound
The first couple hours I watched the Killing streamed over Netflix and an episode of True Blood on Blu-Ray. Nothing really jumped out at me as a difference between the SVS speaker I had been listening to for a couple of weeks. The speakers disappeared just like the SVS, dialog was clear and easily discernable at a reasonable volume level and some background music came forward into the room. The background music which comes out into the room when watching TV shows and movies didn’t quite come out as far as the SVS speakers, but it did so continuously, rather than in discrete steps like the SVS speakers did. Then I watched another episode of the Killing, and there was a plane taking off, I could have sworn I had surround speakers hooked up because I heard it BEHIND me. These speakers can image very well. I had heard such an effect behind me with my Axiom M22s on very rare occasions, like once every couple of months, but this was daily occurrences with the Ascend speakers, when the material called for it. I then started to realize that dialog, which was easy to hear and discern on the SVS speakers had a couple of extra layers of clarity, all of the time on the Ascend speakers. In comparison, the SVS sounded slightly muffled, though it really became clear after listening to the Ascend speakers afterwards. The SVS and Ascend compared to my previous Axiom speakers are a huge step up in performance. Everything on Netflix sounded pretty bad through the Axiom speakers, whereas it sounded quite good on the SVS speakers and very good on the Ascend speakers. I thought it was only possible to hear improvements in good quality material, like Blu-rays, not lossy compressed audio streamed from Netflix. This was something I did not expect at all. Turning to music, again, things sounded quite good on the SVS speakers, but those same concert Blu-rays sounded even better, just more realistic and natural, rather than trying to make up adjectives. Female voices, male voices and the various instruments all sounded great. I loved listening to the attack and quick decay of various drums and how they often just come out into the room at you. So far, it was a very easy decision to send back the SVS speakers. The Ascend speakers seemed substantially better to me in all respects. Now, it is not the fairest comparison since the Ascend speakers cost substantially more, but I wanted to justify for myself the reason for spending the extra money.

Aperion Audio 3-way Verus Grand Center (price approx. <strike>$1600/pair</strike> $1300/pair during summer sale):

· I chose the piano black finish and it looks beautiful. Nice rounded edges. However, I don’t like the look of a center channel in comparison to a bookshelf or tower speaker though and it kind of stands out a bit more when you have a stereo pair of them. This is just a personal preference for me.
· Seems very solidly built. It is pretty hefty. It weighs about as much as either pair of bookshelves that I am comparing to.
Placement:
· I placed the speakers in the exact same location and toe-in as the other bookshelf speakers. However, the Sanus SF-30Bs don’t have as big as a base for the speaker to sit on as some other stands I had sitting around. The extra speaker stands I had were from Parts express and they are very solidly built (I can stand on them comfortably) metal stands at a height of 18 inches. I don’t remember the brand of these stands. I used the supplied curved door stopper-type wedges that came with the speakers to angle them up to about the same height the bookshelves were firing at in the main listening seat. I would have preferred having these speakers at the same 30 inch height, but this was the best I could do for comparison. I slightly changed the level matching so that they blended with the subwoofer using my Radio Shack SPL meter.

Sound:
The first thing that leapt out at me when I first listened to the speakers, demoing an Elton John song from his Blu-Ray concert, was the size of the soundstage seemed a bit larger than that of the bookshelf speakers. I thought this is one factor that might make things interesting between the Aperion and Ascend speakers. I think the Ascend has better parts from top to bottom (including the cabinet), while the Aperion has the advantage of being a larger 3-way speaker, likely with more output (which I don’t think I will need). Next up I watched an episode of the Killing. The Aperion speakers seemed to do as good of a job as the Ascend speakers at pulling more material outward into the room and it could even get the depth of getting behind you, tricking you into thinking you have surround speakers setup. Again, the soundstage seemed a bit bigger (horizontally and vertically) than the bookshelves, while doing this. Dialog sounded much like the SVS speakers, somewhat muffled. Thinking more about it, muffled isn’t the right word. The Ascend speakers just make it much sharper and more etched out, whereas the other two brands have dialog that sometimes sounds more vague, but is still easy to clearly hear and discern. The best analogy I can think of is the difference in sharpness of the picture between a very good DVD transfer and a Blu-ray transfer on say a 50” high definition set sitting 8 feet away. The DVD looks great, until someone shows you the Blu-Ray and you realize how much sharper the picture is in comparison (This is where we are trying to ignore the differences in color that would also be part of the big differences you are also noticing). The Ascend and Aperion speakers can both image very similarly, in terms of the depth of the soundstage in the room. Also, when the sounds came forward into the room they were both equal in doing so continuously where it didn’t feel slightly disconnected from the rest of the sounds (like dialog) it did on the SVS speakers. Overall, the Aperion speakers are seem to be much easier to drive. The SVS and Ascend speakers I would normally set at about the same volume level with similar material. However, the Aperion speakers I could set about 5 dB lower in gain on all material.

Other Much More Interesting Comparisons I Wanted to Consider:
The main difficultly in not being able to compare all speakers I wanted to is that my wife was due for delivery of our second child right about 30 days after I began listening comparisons in my house. Though even if this were not the case, I am not sure if I would have bothered with these comparisons due to the reasons given below.

RBH SX-61/R Bookshelf Speaker – Seems like a great speaker, designed very well with high quality components. The problem with these is that they are only available through dealers, and my local dealer in Chicago didn’t seem to have these on hand (at least according to their website). It would have been a much more interesting comparison pricewise and in terms of the components used with these RBH speakers and the Ascend speakers.

Philharmonic Philharmonitor – This would have been a very interesting comparison, since they use very similar parts. I guess I would have mostly heard the differences between the extra work that the ascend designer Dave F. did getting custom Seas drivers and having a bamboo cabinet to reduce resonance, etc. I may pick up a pair of the Philharmonitors just to see how close they match the sound of the Sierra 2s. I don’t like the look of these nearly as much as the Ascend speakers, but they do seem to have some quality components for a low price.

XTZ 99.36 – These are tower speakers with a Raal ribbon tweeter for the same price as the Sierra 2s and they look about as good in terms of the finish. The only thing that gave me pause with these is it seemed like the in home trial was only 14 days, you pay shipping back, it wasn’t clear where they were shipping from (I don’t want to pay shipping both ways if it is out of the country). Note, this has just changed and XTZ in the US is giving a 60 day in home trial period. I would have definitely tried out their tower speaker here with the ribbon tweeter or their bookshelf if they had offered such a trial period when I was doing in home auditions.

Conclusion:
The Ascend speakers were best in all regards (to my ears), except the size of the soundstage created. This only points me to possibly wanting Ascend towers up front with Raal tweeters. As I mentioned previously, I would need a custom designed “short” tower to fit my needs. The nice thing about Ascend is that the designer Dave F. has already shown he is open to doing such things. I would put the Aperion speakers in second place for me and the SVS in third. I imagine the Aperion bookshelf speakers, if they keep all of the same aspects as the bigger 3-way speakers except a smaller soundstage, would still be in second place, making them a very good value speaker. The depth of the soundstage on the Aperion speakers was equal to that of the Ascend speakers. The SVS speakers seemed to be lacking in both depth of soundstage and having it done continuously. The big selling point for me with the Ascend speakers is that dialog, sound effects and music just sounds clearer, more natural, and more sharply defined. Ascend also has many more speaker options for finishing out my surround speaker setup. I can inexpensively finish out a 7.1 system with a Sierra 2 in the center and some HTM200s as surrounds. Dave F. seems to be open to doing custom speakers, so I could even get three way speakers for the front 3 (short towers from a horizon squashed down and oriented vertically, which I may use behind my AT screen). My Sierra 2s could be repurposed as wide speakers. He seems open to possibly making an on-wall Sierra 2, which would be perfect for surround speakers, if I want the ribbon tweeters all the way around me (the Sierra 2s are just too deep for me to use as surrounds). It just seems like there are more of options for speakers from the Ascend line, which will work in my situation. I can do so rather inexpensively (utilizing HTM 200s in surround duties and Sierra 2’s up front) all the way up to maybe ribbon tweeters all around and short towers up front. And in all cases, the speakers will fit in my tighter space requirements and I couldn’t be happier with the sound quality I am getting from these speakers. What surprised me about all of the speakers in the comparison though, was how well they could pull information out of lossy (likely overly compressed) streamed audio over Netlix and make it sound good and interesting, while being clear and easy to hear. This in addition to the fact that they are all much less fatiguing during longer listening sessions, were what surprised me the most. The standout characteristics of the Sierra 2s are the ability to image very well. If you are sitting in the sweet spot, there is no big hurry to get surround speakers, since they can fool you into thinking you already have some quite frequently. I think it is the high quality (and customized) driver that really bring an extra level of clarity with music and movies that many other speakers just cannot do.

Addendum: Measurements of Ascend Sierra 2
The biggest aspect that drew me towards considering the Ascend speakers was how much technical information in right on the webpage and forum. Also, if you want to call and talk with Dave F. the speaker designer, then you can by calling the phone number under the support tab. Getting back to the measurements, you can see for every speaker an enormous amount of technical information, about as much as you would get from Audioholics or Stereophile when they review speakers. For the Sierra 2, for example, you can find the horizontal and vertical off-axis plot, polar response plot, impedance and electrical phase plot, energy time curve, and cumulative spectral decay, under the measurements tab for that speaker. Also, under the specifications tab you can find the sensitivity (with all needed units of measurement to know what it means), the maximum continuous power and short term peak power that can be fed into the speakers, with unclipped peaks. Looking around the forum you can also discover why Dave F. is using bamboo to construct the Sierra line of speakers. The initial reason was to use bamboo to construct the most inert cabinet he could at a reasonable price. He has impressive plots to show that he has been to minimize resonance in the cabinet with this choice of material. The positive side effects of using the bamboo is that it is a renewable resource (if you care about such things) and they just look gorgeous and have a look not like many other speakers (in their natural finish). I bet if there are other measurements you also want to have you can probably contact Dave F. and he will willingly share them with you. The measurements, to me, speak for themselves. When I did the listening comparisons though, I really wanted to justify for myself that the extra money spent on the Sierra 2s was worth it. For me, I needed to hear some differences and I wanted those differences to be something that stands out as important and really justifies the extra money spent. These speakers measure extremely well and all of that extra time and effort that went into getting those can be heard in multiple ways.

I mentioned above that I was a little sad I wasn’t able to compare the Sierra 2s with other more economical speakers that also have ribbon tweeters. This was mainly a hope of being able to get the kind of performance of the Sierra 2s at a cheaper price. My gut feeling is that it probably is not possible, just seeing how carefully designed the Sierra 2s are (every single aspect of the speaker). Dave F. seems to have worked so hard to squeeze every bit of performance out of every component of the speaker, whereas the other manufactures are using off the shelf parts in various places. The extra performance may be small, but I just have a feeling it is there.
 
AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
...other manufactures are using off the shelf parts in various places...
I think all ID companies (including Ascend) use "off the shelf" drivers, more or less. :D

Beyond that, they may have the driver manufacturers build to their "specification". Harman (Revel, JBL, Infinity) build their own drivers. So do KEF and TAD. RBH build their own midrange drivers and woofers, but they use Scan-Speak tweeters. But none of these ID speaker companies build their own drivers in-house. :D

OTOH, it doesn't mean the drivers are not as good if they are "off the shelf"; and it doesn't mean the drivers are better if they are built in-house. :D

It means you can cut cost if you can mass produce in-house parts. For example, if you were to buy aftermarket diamond tweeters, it might cost you $2K for one Accuton Diamond tweeter. But it may cost B&W only $500 each. It doesn't mean one is better sounding. It just means the in-house parts are more cost effective for the company.
 
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nickboros

Audioholic
I think all ID companies (including Ascend) use "off the shelf" drivers, more or less. :D
You are right that many of the the other Ascend speakers are probably using "off the shelf" drivers. I guess what I may not have made clear is that Ascend had their RAAL tweeter custom designed for their specific application in the Sierra 2, whereas many other manufacturers are just using an off the shelf part that they force to work together with other off the shelf parts. The same is true with the woofer used. The drivers were customized to specifically work together optimally in this speaker cabinet. That, to me, is what makes this a special speaker.

Dave Fabrikant talks about this in post 687: Sierra-2 Development Thread - Page 69
Also, see post 1007: Sierra-2 Development Thread - Page 101
Also, see post 1126: Sierra-2 Development Thread - Page 113 <- from from Aleksandar Radisavljević Founder and Director of RAAL
 
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AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
I guess what I may not have made clear is that Ascend had their RAAL tweeter custom designed for their specific application in the Sierra 2, whereas many other manufacturers are just using an off the shelf part that they force to work together. The same is true with the woofer used. The drivers were customized to specifically work together well in this speaker cabinet.

Dave Fabrikant talks about this in post 687: Sierra-2 Development Thread - Page 69
Also, see post 1007: Sierra-2 Development Thread - Page 101
Also, see post 1126: Sierra-2 Development Thread - Page 113
Yeah, they have the driver manufacturer build to their "specification". :D

There may be slight differences. Some materials may be different just like there are different versions of a part. But it's not significantly different than the standard version. :D

The original OEM components are already great parts. Any so-called enhancements are mostly inaudible. :D

Bottom line, any ID company can have the manufacturer build their drivers "per specification", which basically means a different VERSION of the OEM part.

I'm sure Dennis Murphy has his loudspeaker drivers built to his exact specification. So does Jim Salk. And everyone else. :D

I wonder if Nathan Funk builds his own drivers like the TSAD driver?
 
ImcLoud

ImcLoud

Audioholic Ninja
I have heard all the speakers you mentioned, and the sierra 1's sound better than the ultras to me as well as the aperions... The sierra 2's are just another entire level. I am really starting to love ribbons tweeters..
 
D

Dennis Murphy

Audioholic General
Yeah, they have the driver manufacturer build to their "specification". :D

There may be slight differences. Some materials may be different just like there are different versions of a part. But it's not significantly different than the standard version. :D

The original OEM components are already great parts. Any so-called enhancements are mostly inaudible. :D



Bottom line, any ID company can have the manufacturer build their drivers "per specification", which basically means a different VERSION of the OEM part.

I'm sure Dennis Murphy has his loudspeaker drivers built to his exact specification. So does Jim Salk. And everyone else. :D

I wonder if Nathan Funk builds his own drivers like the TSAD driver?
To give credit where credit is due, Dave didn't just have RAAL fix him up another version of an existing OEM. He worked with RAAL to develop the new unit from scratch. I can also buy this tweeter and have the transformer wound to my specific sensitivity needs, but I had nothing to do with the driver development.
 
JohnnieB

JohnnieB

Senior Audioholic
I jumped straight to the Ascend towers because I like the look and sound of towers. I have not heard any other Ascend speaker. Believe me it was not an easy decision to plop down 2700.00 for speakers I had never heard. My plan is to finish out my HT with the Horizon ctr, and Sierra 2 rears. I did audition several of the usual suspects looking for a set, and after all is said and done, I am extremely glad I went with Ascend. Can't say enough about the RAALs, simply superb. Heck the towers are superb period.

Enjoy the 2's.
 
billy p

billy p

Audioholic Ninja
Wow...great read...I also moved from the Axioms to Ascend a few years back. At the time I compared them both to my Energy RC and the Ascends were on another level. I've had a few people come over for a demo and the one thing they immediately notice is how well they image. On a few occasions a couple of gents commented on the STC(or Horizon) as one amazing speaker and it must be heard with the RAAL. I love it...:D

I know Dave has a close OEM relationship with several vendors and the S2 is a prime example of his hard work. Continue to enjoy the S2...if cost is an issue the HTM200 would certainly fit the Bill...that's because Ascend speakers are all closely voiced ..so.. no problems there. AAMOF I had a member come by recently and comment on that very fact, he said "if a designer can make the RAAL and dome sound so close, he is doing something very well". I would love to hear some S2 one day...I had the S1 NrT and moved up to the towers...no regrets.

Btw...do you use the same user ID at the Axiom forum? IIRC a member there uses the same moniker(or similar) but I don't visit there any more for personal reasons.

Take care,

Bill...:)
 
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AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
To give credit where credit is due, Dave didn't just have RAAL fix him up another version of an existing OEM. He worked with RAAL to develop the new unit from scratch. I can also buy this tweeter and have the transformer wound to my specific sensitivity needs, but I had nothing to do with the driver development.
I stand corrected. :D

Interesting. So now anyone can buy the same exact driver (to their spec/need). It's not exclusive to Ascend, although Dave & RAAL have the "credit" for its design.

Is the Accuton drivers used by Jim Salk exclusive or can anyone buy them?
 
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Dennis Murphy

Audioholic General
I stand corrected. :D

Interesting. So now anyone can buy the same exact driver (to their spec/need). It's not exclusive to Ascend, although Dave & RAAL have the "credit" for its design.
Well, not just anyone. It's OEM, so you have to sign an agreement and buy in some quantity. Also, I can't be certain that the OEM is identical in every construction detail to the one Dave uses. But it's a very fine RAAL driver in any case.
 
C

cschang

Audioholic Chief
I stand corrected. :D

Interesting. So now anyone can buy the same exact driver (to their spec/need). It's not exclusive to Ascend, although Dave & RAAL have the "credit" for its design.
Like Dennis said, it may not be exactly the same though.

Dave/Ascend had a need. He made a commitment to RAAL (ie. purchase a certain number of units or something like that), and in turn, RAAL made a commitment to him. It didn't hurt that Ascend was/is RAAL's #1 customer. R&D costs a lot of money, and they worked on it for 2 years. In the end, it becomes beneficial to both parties. I had the chance to see(and hear) a different iteration of the tweeter a year or so before the Sierra-2 was announced, and in the end, the final product looks entirely different. Who knows how many prototypes came across the pond?

BTW...Ascend and SEAS had a similar arrangement in regards to the mid-woofer in the Sierra-2.

Alexsandar (RAAL) even made a few posts over in the Ascend forum about the Sierra-2 project starting here:
Sierra-2 Development Thread - Page 113
(I see this was posted before)
 
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ImcLoud

ImcLoud

Audioholic Ninja
I have heard many speakers the Sierra 2's are special, there is no doubt, its kind of one of them things, like "don't bother listening to anything else under $2500 in a bookshelf"... Even above $2500 I can't think of anything that really walks all over them, then when you get up around $3K where you can get some really nice towers its going to be preference because are you going to find something TWICE as good as the sierra 2's? I have never heard a speaker I would call Twice as good and I have listened to many that cost over $10K, sure some there are speakers out there that I like the look and sound of better than the 2's but when I compare the prices, there is no comparison...

It honestly is a real nice speaker but I am a 2way bookshelf guy.. I also like 3way towers but I will take books with subs anyday...
 
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Ricardojoa

Audioholic
whereas many other manufacturers are just using an off the shelf part that they force to work together with other off the shelf parts. The same is true with the woofer used. The drivers were customized to specifically work together optimally in this speaker cabinet. That, to me, is what makes this a special speaker.

Dave Fabrikant talks about this in post 687: Sierra-2 Development Thread - Page 69
Also, see post 1007: Sierra-2 Development Thread - Page 101
Also, see post 1126: Sierra-2 Development Thread - Page 113 <- from from Aleksandar Radisavljević Founder and Director of RAAL
I dont see anything inferior or superior in using custom drivers or off the shelves drivers if the designer knows what he is doing. Im not sure what you mean by "they are force to work together with other off the shelves parts", but a designer choosing of the shelves drivers, crossover components is part of a great desing as well, the designer will work around with the paramenters of the drivers. In case of the sierra2, Dave needed to work around with the cabinets specification at least in terms of the cabient volume and drivers cutout size.
 
C

cschang

Audioholic Chief
I dont see anything inferior or superior in using custom drivers or off the shelves drivers if the designer knows what he is doing. Im not sure what you mean by "they are force to work together with other off the shelves parts", but a designer choosing of the shelves drivers, crossover components is part of a great desing as well, the designer will work around with the paramenters of the drivers. In case of the sierra2, Dave needed to work around with the cabinets specification at least in terms of the cabient volume and drivers cutout size.
That would only be true for the woofer for the cabinet volume. For the tweeter, all you are really dealing with is the faceplate/mount.

Since a custom faceplate/mount had already been made for the 70-20XR to be used in the Sierra Tower, that was pretty much a non-issue for the Sierra-2 since the tooling would be the same or very similar for the custom RAAL in the Sierra-2.

As for custom vs off the shelf, what you say is true. It comes to how/where the designer wants to integrate the drivers...in essence, how much work the engineer wants the crossover to do. Some believe the less you have to manipulate the signal to each driver, the better. I think the late John Dunlavy had a quote to the that affect...as I am sure others have as well.
 
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Ricardojoa

Audioholic
That would only be true for the woofer for the cabinet volume. For the tweeter, all you are really dealing with is the faceplate/mount.

Since a custom faceplate/mount had already been made for the 70-20XR to be used in the Sierra Tower, that was pretty much a non-issue for the Sierra-2 since the tooling would be the same or very similar for the custom RAAL in the Sierra-2.
Im sure the tweeter baffle opening and the ribbon transformer were something that need to be considered as well.
 
C

cschang

Audioholic Chief
Im sure the tweeter baffle opening and the ribbon transformer were something that need to be considered as well.
Sure, the opening is different, but not a major change in tooling. The transformer is smaller in the less expensive RAAL, so not a big deal.
 
R

Ricardojoa

Audioholic
The tweeter on the sierra 2 is not the issue here because they are custom made to fit into the restricted cabinet of the existing sierra 1 tweeter opening and with a smaller transformer that would not take up the cabinet volume. Technically the raal 70-20 would have been a better option due the CTC of the tweeter and midwoofer and the crossover point, but of course all else needed to be weighted in the design, just like someone would if built from off the shelves parts.
 
GranteedEV

GranteedEV

Audioholic Ninja
Thanks nickboros for the info on the Sierra 2s. I never had any doubt they were a cut above a lot of the competition out there.
 
AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
I'm sure the SVS and Aperion also make a lot of people very happy. ;)
 
GranteedEV

GranteedEV

Audioholic Ninja
I'm sure the SVS and Aperion also make a lot of people very happy. ;)
No doubt.

I loveeeeee my Phil 2s. When I listen to them I'm always left breathless.

But when I'll be at the upstairs living room, and even watching everyday TV on my EMP E55Ti is always a pleasure. I'm not thinking "oh noes this silk dome is missing detail at 6khz". I'm thinking Clean and Clear and Under Control.

It's as TLS Guy always says about sins of omission VS sins of commission. Good loudspeakers are may still have the former, and that's okay. You can still enjoy the source content very finely.
 

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