Bi ampable speakers

[TLS Guy]

TLS's crossover circuit

I should have used this link.

 

[TLS Guy]

My speakers only have one set of binding posts. Can I use the biamp feature on my Pioneer VSX-1014TX (7x110w) without causing damage?

On the BESL 5MT, Phil Bamberg uses the SEAS Nillenium tweeter and the 7" magnesium W18EX-001. The sensitivity is only 83db. They do have great detail and could benefit from more power.

Unfortunately I can't post the link because I have less than 5 posts.
bambergaudio dot com s5mt.shtml
bambergaudio dot com s5mt_xo.shtml crossover notes

Thanks.

I can't find Bamber audio anywhere. But to answer your question, bi amping would not help, as the tweeter takes little power. That driver has a sensitivity of 86.5 db. Most designers put two in a design which gets the sensitivity to 89.5 db.

Mr. Bamber seems to have a rather high insertion loss from his crossover. He is wasting half of your amp power. Maybe he needs a lesson or two.

I used the same driver for my mains.

Since you only have one set of terminals on the back of your speakers you can not biamp without blowing up your receiver. I would suggest a bigger amp.

 

[TLS Guy]

Ok, I clicked on your picture and it kind of hurt my finger but I see your point.

Everytime I see your set up the same things come to mind;

1. I really like the way it looks.
2. I would like to hear it and see for myself if you are really ok without a sub.
3. I wonder why your display is the size of my GPS.
4. I wish I could find more Docs with an interest in HT as it would make my job easier.

I like the way it looks too!

You are welcome here any time. It does not need a sub. Those lines really connect with the space and could easily do structural damage without help from a sub. I much prefer the bass quality of a TL. At the moment I'm designing a TL sub using two perfect kappa 12 VQ mid insert for our Eagan town home. You have to use two divers otherwise the pipe length/pipe volume is out of whack.

The display is 52". I thought about projection, but this is a nice airy space with lots of good views, and I did not want to blank it out.

Can't help you with No.4, But I had quite a few colleagues interested in audio and one of our senior administrators, who is now CEO.

 

[JerryLove]

I prefer to see the picture within the post. I mean, if we were the type that didn't mind clicking more than one button then we wouldnt need fancy remotes and we might even get off the couch.

So let me see if I follow.

When you ask someone to help you put and find information you want and put up a picture for you; it's unreasonable if they don't give it to you in your preferred format?

 

[TLS Guy]

With speakers that can be bi amped like the axiom m80v2's, What happens when you are NOT using two amplifiers and a crossover? Does it affect the sound at all, or do the mids/woofers have high/low pass filters to prevent problems?

Also, if they do have filters, wouldn't that eliminate some of the benefits people seem to desire of eliminating the internal crossover when bi amping?

I have found your speaker. I think this is it.

There is actually no discrepancy in the sensitivity. SEAS quote the sensitivity of the driver at 1watt 1meter. The specs on this site quote the sens as 2.83volts at one meter. Now 2.83 volts is the voltage that will push 1 watt into a resistive load of 8 ohms. Well a speaker is not a pure 8 ohm resistive load, so there is a discrepancy in the numbers.

Now that driver would not really handle an amp over 100 watts. However the impedance curve of the speaker is quite complex, even dropping to 4 ohms at one point.

I would trade up to a speaker that uses a couple of those drivers, if you like them, such as these.

Those speakers were designed by Joe d'Appolito, and also give you the benefits of TL loading.

I would also recommend an amp that can double its power when driving four ohm loads as compared with eight.

 

[Sheep]

I like the way it looks too!

You are welcome here any time. It does not need a sub. Those lines really connect with the space and could easily do structural damage without help from a sub. I much prefer the bass quality of a TL. At the moment I'm designing a TL sub using two perfect kappa 12 VQ mid insert for our Eagan town home. You have to use two divers otherwise the pipe length/pipe volume is out of whack.

The display is 52". I thought about projection, but this is a nice airy space with lots of good views, and I did not want to blank it out.

Can't help you with No.4, But I had quite a few colleagues interested in audio and one of our senior administrators, who is now CEO.

Well lets put this in perspective. You're fronts have 2 8inch(10?) woofers each. That equals 4 - 8 inch(10?) woofers total. That is generally more subwoofer then most people have in their HT. So yeah, I expect it to have some bass. In fact, if it doesn't, it's lame. Really lame.

SheepStar

 

[TLS Guy]

Well lets put this in perspective. You're fronts have 2 8inch(10?) woofers each. That equals 4 - 8 inch(10?) woofers total. That is generally more subwoofer then most people have in their HT. So yeah, I expect it to have some bass. In fact, if it doesn't, it's lame. Really lame.

SheepStar

Sheep, you are right on target! There are two 7" and two 10" drivers in each main. I agree if you can't threaten house and health with that you had better quit. Also total power to each speaker is 450 watts tri-amped.

However the really exceptional thing is the bass touches so lightly and dances, but when a movie shoots a canon, it comes out of nowhere and just about knocks you out.

The Fs of those 10 inch drivers is 20 Hz. Max linear travel 14 mm. Max excursion 35mm. However the pipe controls them well and the drivers barely move, and the amps don't break a sweat.

 

[Thaedium]

Whenever I look at TLS Guy's stuff I feel like I'm looking at some sorta musical haven. And Tri-amped? I mean common man! hah. Thats dedication. The only thing I could imagine to improve the listening experience with your system is to custom build a room for it.

 

[TLS Guy]

Whenever I look at TLS Guy's stuff I feel like I'm looking at some sorta musical haven. And Tri-amped? I mean common man! hah. Thats dedication. The only thing I could imagine to improve the listening experience with your system is to custom build a room for it.

That was the amount of space my daughter allowed me! She was he architect of the remodel. It is a pretty good space for me and the family. I wanted lots of windows, because the views are wonderful. The room was custom to an extent. This level used to be a big game room. With the remodel, we got this space, the walk behind space/test repair area, and a nice guest bedroom overlooking Benedict lake, with French window access to a balcony.

There was no good way to put an addition on the house to get a larger space, but this works in the whole context of the flow of the house. The house is big enough anyway. At the lake you need bedrooms. So we all agreed having four guest bedrooms was important for the family. I agreed and don't regret not having the whole of that level.

 

[TLS Guy]

The mods have done a nice job of cleaning this thread up. I think Eddie Soprano is history!