Yamaha A-S801 Boost or Roll-Off?

AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
It is surprising that Yamaha would actually put higher end DAC chips in their AVRs, at least in their top 2 or 3 models anyway, than those in their $1000 two channel integrated amp.
Great. Now some wise guy will say that some AVRs have better sound quality than some Integrated amps. :D


For a few dollars more why not go for the same 9016 or even the 9018 just to shut people up.
Putting cheaper components into Integrated Amps is unacceptable.

Clint Eastwood also agrees with you. :D

 
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AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
Good thing I haven't said such a thing, you have to wait for that wise guy.:D
If I had golden-ears and could hear the difference between the cheaper DAC in the Integrated Amp and the higher-end DAC in the AVR, I could be this wise guy who would say that the AVR sounds better than the Integrated amp.

But since I have non-metallic ears (not even silver-ears), I just can't be this wise guy. :D
 
E

<eargiant

Senior Audioholic
I have been following this post now and again.

I'm not sure much light has been shed.

What I can tell you from my Marantz 7701?

To me stereo, Direct and Pure Direct sound the same. However in Pure Direct there is less noise. If you put your ear to the speaker stereo and Direct sound the same, but there is a reduction in nose going to Pure Direct. I can say I have heard the noise in quite passages. My 8003 did not seem to have more noise in stereo and Pure Direct. So the newer pre pro does seem to get more noise from the video circuits. However the picture seems to me a little better on 7701, so I think the video circuits were upgraded. Now that is with digital source.

On the turntables which have their own preamps (Quad control units) I have a preference for Pure Direct but using my bass management and not the Pre/pro"s. I can switch between the two at the flick of a switch. There is no change in level. I think though this is because electronics is much more similar to the LP era with my bass management. On digital sources I can tell no difference at all whether I use my bass management or not.
Don't doze off again just yet!

I'm glad you're here because I have a question about the possibility that what I hear is due to the speaker design and I think you may be the right guy to ask. But first, when I initially got this amp I tried something similar in an attempt to gauge the noise level. Not in direct vs regular but because I had read that this amp was sooo quite I wanted to hear for myself. I quickly realized that I could not do so with a digital source because the A-S801 seems to cut off all noise/sound if there is no signal going in through the digital inputs (you can actually her the hiss cut out almost instantaneously). I suppose if I connected and analog source into the RCA ports that would not happen but to confirm this I'll have to wait until I'm in the mood to bring it upstairs to try with other gear.

Anyway, since the difference I hear is more easily detected on the speakers vs headphones (even when I don't move my head one inch and just flip the switch). It got me wondering if it was possible that what I'm hearing has to do with the design of the speakers accentuating the difference between the direct switch being on vs. off.

I'm using this amp with my Polk SDA SRS2s. If your not familiar with these, they have an interconnect cable that goes from on speaker to the other to send a cancellation signal to one row of drivers in the opposing speaker. This creates an incredibly enveloping soundstage because as they say, the "inter-aural crosstalk" is eliminated. Could the clarity of the direct signal be more apparent because of the effect these speakers create? Any thoughts?

Polk is actually using this in their soundbars these days but I'm sure they will not come close to what the original SDA SRS speakers could do.

https://www.polkaudio.com/discover/sda-technology

The model I have is similar to the big speaker pictured midway through the link above except that each one has 4 mid-bass drivers instead of 8 and 2 tweeters instead of 4 (like the one pictured mine has a 15" Passive Radiator).
 
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TLS Guy

TLS Guy

Seriously, I have no life.
Don't doze off again just yet!

I'm glad you're here because I have a question about the possibility that what I hear is due to the speaker design and I think you may be the right guy to ask. But first, when I initially got this amp I tried something similar in an attempt to gauge the noise level. Not in direct vs regular but because I had read that this amp was sooo quite I wanted to hear for myself. I quickly realized that I could not do so with a digital source because the A-S801 seems to cut off all noise/sound if there is no signal going in through the digital inputs (you can actually her the hiss cut out almost instantaneously). I suppose if I connected and analog source into the RCA ports that would not happen but to confirm this I'll have to wait until I'm in the mood to bring it upstairs to try with other gear.

Anyway, since the difference I hear is more easily detected on the speakers vs headphones (even when I don't move my head one inch and just flip the switch). It got me wondering if it was possible that what I'm hearing has to do with the design of the speakers accentuating the difference between the direct switch being on vs. off.

I'm using this amp with my Polk SDA SRS2s. If your not familiar with these, they have an interconnect cable that goes from on speaker to the other to send a cancellation signal to one row of drivers in the opposing speaker. This creates an incredibly enveloping soundstage because as they say, the "inter-aural crosstalk" is eliminated. Any thoughts?

Polk is actually using this in their soundbars these days but I'm sure they will not come close to what the original SDA SRS speakers could do.

https://www.polkaudio.com/discover/sda-technology

The model I have is similar to the big speaker pictured midway through the link above except that each one has 4 mid-bass drivers instead of 8 and 2 tweeters instead of 4 (like the one pictured mine has a 15" Passive Radiator).
So these are the horrors you have!



The dealer in Grand Forks stocked these.



I have to say I thought they were a really dreadful speaker, actually sub Bose. Quite apart from sounding like nothing on Earth, the bass was severely miss tuned. The designer did not seem to understand that no matter how many little drivers you put in a box Fs was unchanged. And that is before we get to all the comb filtering and cross phasing between the speakers.

Yes, what you notice probably is due to your speakers and related to a change in phase relationships between the two settings. I expect there is less phase cancellations in one of the settings versus the other.

Brother, its long past time you went speaker shopping.

Those are absolutely among the very worst speakers inflicted on the public.
 
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E

<eargiant

Senior Audioholic
So these are the horrors you have!



The dealer in Grand Forks stocked these.



I have to say I thought they were a really dreadful speaker, actually sub Bose. Quite apart from sounding like nothing on Earth, the bass was severely miss tuned. The designer did not seem to understand that no matter how many little drivers you put in a box Fs was unchanged. And that is before we get to all the comb filtering and cross phasing between the speakers.

Yes, what you notice probably is due to your speakers and related to a change in phase relationships between the two settings. I expect there is less phase cancellations in one of the settings versus the other.

Brother, its long past time you went speaker shopping.

Those are absolutely among the very worst speakers inflicted on the public.

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
:D LOL, they're not as bad as you remember but they do take more care to set up than most any other speaker I've ever had. That's one of the problems dealers had when showcasing them. I don 't know which model/version you auditioned ~30 years ago but there were so many models/versions (over 20 I believe) and yes, from what I hear some may have been dreadful. I think the SRS2 were reported to be one of the better ones. A "Goldilocks" model if you will. When I sit in the sweet spot (you have to) I find them more impressive than not (and not just the sound-stage).

The guy that put together the handbook linked below, Dr. Raife F. Smith II has a Ph. D in Electrical Engineering. He compiled the SDA Handbook as a labor of love. He's definitely a fan of the SDA SRS. He's also someone you could discuss comb filters in relation to the SDA SRS with. I recall reading his comments on the very same subject except that they were positive toward the SDA SRS. I'd love to have a glass of wine and listen to the two of you discuss the topic. Truly a gifted individual. He was powering his SDA SRS with Pass Labs mono blocks so my educated guess is that he has also auditioned some VERY serious top end speakers. Are these SDA SRS variants really as bad as you say they are? Is it possible that you didn't have a proper audition 25-30 years ago?

http://www.vr3mods.com/uploads/SDA_Handbook_2011_Rev2.pdf



I've had quite a bit of decent modern speakers in here (mainly stand-mounts) and for some reason these SDA SRS2s have remained since I picked them up a few years ago. That's what I do, I buy and try. I attend the Hi-Fi shows and have been to every Hi-Fi dealer within a 100 mile radius. Believe me, I've heard the Good, the Bad and the Ugly and IMO the SDA SRS2s are definitely not in the "bad" category (to continue with ACDTGuy's Spaghetti Western theme).




If you ask my wife, she'd paraphrase your comment and and tell you "No, brother- it's long time he STOPPED shopping for speakers"

I've done quite a bit of "shopping", owning and auditioning over the years. I don't discriminate based on price or size either. I like to listen to it all. This way I know for myself. This is an old picture of what was probably my lowest priced speaker, the Philharmonic "New" AA Monitor version (I also had the original version of the AA Monitors which I think I actually preferred). The SDA SRS2 are hanging out in the back.

I honestly don't remember the SDA SRS2 sounding "like nothing on Earth" after listening to the AAs for several hours/days.

Side note for anyone that's interested:The Yamaha in the background is not the A-S801 it's a very cool little vintage CA-600. Ohhh, the feel of those knobs and switches and how they function compared to the 801, what a shame that quality feel was lost in the newer models.




As for Bose, I have a pair of beat to crap sacrificial 201s that I only use to initially test any second-hand amp I'm thinking of buying. When I had the Monitor Audio Bronze 2 in here I was so unimpressed that I thought- jeez, I think even my crappy Bose testers sound better than these. I dug them out and sure enough the MA BR2 were only marginally better (gotta find pictures of that day). Very surprising indeed. Never looked at a What Hi-Fi review the same ever again.

Below is what I've settled in the main room - but yeah I know, some will say these are dreadful too, but with them my shopping days are finally over! ... for now...I think...don't tell my wife...

Anyway, it's interesting to hear that there may be "less phase cancellations" in one of the settings (Direct vs Regular). I have never hooked the Yamaha A-S801 up to the 805Ds but I will someday soon. I wonder if I'll hear a difference on them also.


 
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AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
Below is what I've settled on for the main room but yeah I know, some will say these are dreadful too , but with them my shopping days are finally over! ... for now...
Actually, they sound pretty good, but some wise guys still like to give them a hard time because they cost a fistful of dollars. :D

upload_2018-3-16_7-36-47.png
 
P

PENG

Audioholic Slumlord
Hey eargiant, have you tried doing the same comparison but use only one speaker at a time? That would reduce the phase effects that TLSG referred to, no?
 
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E

<eargiant

Senior Audioholic


The sacrificial amp tester :eek:

Now I'll truly be unforgiven around here...




Hey eargiant, have you tried doing the same comparison but use only one speaker at a time? That would reduce the phase effects that TLSG referred to, no?
I was actually going to try it without the interconnect cord on the SDA SRS2s. By unplugging it the speaker array with the cross-signal become inactive.

I guess I can also try it with a sole stand-mount speaker. I think I can use Roon to playback in mono-will have to check.
 
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P

PENG

Audioholic Slumlord
The sacrificial amp testers



Now I'll truly be unforgiven around here...






I was actually going to try it without the interconnect cord on the SDA SRS2s. By unplugging it the speaker array with the cross-signal become inactive.

I guess I can also try it with a sole stand-mount speaker. I think I can use Roon to playback in mono-will have to check.
Good point, same idea but better I guess..
 
TLS Guy

TLS Guy

Seriously, I have no life.
:D LOL, they're not as bad as you remember but they do take more care to set up than most any other speaker I've ever had. That's one of the problems dealers had when showcasing them. I don 't know which model/version you auditioned ~30 years ago but there were so many models/versions (over 20 I believe) and yes, from what I hear some may have been dreadful. I think the SRS2 were reported to be one of the better ones. A "Goldilocks" model if you will. When I sit in the sweet spot (you have to) I find them more impressive than not (and not just the sound-stage).

The guy that put together the handbook linked below, Dr. Raife F. Smith II has a Ph. D in Electrical Engineering. He compiled the SDA Handbook as a labor of love. He's definitely a fan of the SDA SRS. He's also someone you could discuss comb filters in relation to the SDA SRS with. I recall reading his comments on the very same subject except that they were positive toward the SDA SRS. I'd love to have a glass of wine and listen to the two of you discuss the topic. Truly a gifted individual. He was powering his SDA SRS with Pass Labs mono blocks so my educated guess is that he has also auditioned some VERY serious top end speakers. Are these SDA SRS variants really as bad as you say they are? Is it possible that you didn't have a proper audition 25-30 years ago?

http://www.vr3mods.com/uploads/SDA_Handbook_2011_Rev2.pdf



I've had quite a bit of decent modern speakers in here (mainly stand-mounts) and for some reason these SDA SRS2s have remained since I picked them up a few years ago. That's what I do, I buy and try. I attend the Hi-Fi shows and have been to every Hi-Fi dealer within a 100 mile radius. Believe me, I've heard the Good, the Bad and the Ugly and IMO the SDA SRS2s are definitely not in the "bad" category (to continue with ACDTGuy's Spaghetti Western theme).




If you ask my wife, she'd paraphrase your comment and and tell you "No, brother- it's long time he STOPPED shopping for speakers"

I've done quite a bit of "shopping", owning and auditioning over the years. I don't discriminate based on price or size either. I like to listen to it all. This way I know for myself. This is an old picture of what was probably my lowest priced speaker, the Philharmonic "New" AA Monitor version (I also had the original version of the AA Monitors which I think I actually preferred). The SDA SRS2 are hanging out in the back.

I honestly don't remember the SDA SRS2 sounding "like nothing on Earth" after listening to the AAs for several hours/days.

Side note for anyone that's interested:The Yamaha in the background is not the A-S801 it's a very cool little vintage CA-600. Ohhh, the feel of those knobs and switches and how they function compared to the 801, what a shame that quality feel was lost in the newer models.




As for Bose, I have a pair of beat to crap sacrificial 201s that I only use to initially test any second-hand amp I'm thinking of buying. When I had the Monitor Audio Bronze 2 in here I was so unimpressed that I thought- jeez, I think even my crappy Bose testers sound better than these. I dug them out and sure enough the MA BR2 were only marginally better (gotta find pictures of that day). Very surprising indeed. Never looked at a What Hi-Fi review the same ever again.

Below is what I've settled in the main room - but yeah I know, some will say these are dreadful too, but with them my shopping days are finally over! ... for now...I think...don't tell my wife...

Anyway, it's interesting to hear that there may be "less phase cancellations" in one of the settings (Direct vs Regular). I have never hooked the Yamaha A-S801 up to the 805Ds but I will someday soon. I wonder if I'll hear a difference on them also.


Tell You wife I have never shopped for speakers. I used to get curious about speakers at dealers. Now most of them are gone.
 
E

<eargiant

Senior Audioholic
Tell You wife I have never shopped for speakers. I used to get curious about speakers at dealers. Now most of them are gone.
Heh-heh-heh, she would've been referring me. She doesn't want anyone encouraging me to shop for speakers. At one point even my daughter was like - "Dad, ANOTHER set of speakers???" Come to think of it, she said the same thing about headphones and amps o_O They just don't get this hobby of ours do they.

Even if I did have the technical chops to build my own like you do I wouldn't have the time. Too busy working on the wife's honey-do list :D I've got to remember that next time I stroll in here with a new toy.
 
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TLS Guy

TLS Guy

Seriously, I have no life.
Heh-heh-heh, she would've been referring me. She doesn't want anyone encouraging me to shop for speakers. At one point even my daughter was like - "Dad, ANOTHER set of speakers???" Come to think of it, she said the same thing about headphones and amps o_O They just don't get this hobby of ours do they.

Even if I did have the technical chops to build my own like you do I wouldn't have the time. Too busy working on the wife's honey-do list :D I've got to remember that next time I stroll in here with a new toy.
Well I guess I'm lucky. My wife loves both systems here and the one at Eagan. The latter she refers to as her system. She has by now mastered all three systems.

She won't hear of visiting a cinema and insists now on waiting for BD release.
 
E

<eargiant

Senior Audioholic
Well I guess I'm lucky. My wife loves both systems here and the one at Eagan. The latter she refers to as her system. She has by now mastered all three systems.

She won't hear of visiting a cinema and insists now on waiting for BD release.
Yes you (we) are lucky. Don't get me wrong my wife loves it too but she doesn't get the pursuit & comparing part of the hobby.

We recently went to New Orleans and stopped into a little local place that had a live jazz band. They had a sax, trumpet, trombone, upright bass, guitar, piano & drums. We were one row of tables away from the band and they were surprisingly good.

At one point my wife leans over and says "it sounds so good, just like at home". Needless to say that made me grin like a cheshire cat.

That my friends, is why we do what we do.
 
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AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
she doesn't get the pursuit & comparing part of the hobby.
I think she understands that the “pursuit of perfection” is part of the process until you’ve finally found that perfect system.

Then it’s all about finding the music, movies, and TV shows to enjoy for the rest of your time.
 
KEW

KEW

Audioholic Overlord
I think she understands that the “pursuit of perfection” is part of the process until you’ve finally found that perfect system.

Then it’s all about finding the music, movies, and TV shows to enjoy for the rest of your time.
It has always been about finding the music to enjoy, even when I had my first $69 Juliette Stereo Cassette player!
It is the beauty and emotion of the music that inspires pursuit of the "perfect" system!
 
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