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-   -   Quad 63 in series (http://www.diyaudio.com/forums/planars-exotics/224269-quad-63-series.html)

desperateaudio 25th November 2012 04:56 PM

Quad 63 in series
 
So can u put 63's in series with each other? Or Parallel for that matter. Did a search but saw nothing. Thx in advance.

Frommerstop 25th November 2012 08:32 PM

You can run two pair parallel (series seems like asking for trouble), just like any other speaker, as long as your amp can handle the load. Why do you ask? If you're thinking of "doubled '63s", it doesn't work all that well. Unlike "doubled '57s", stacking ESL63s changes the "point source" radiation pattern, and creates two point sources... noticeably disturbing the wonderful depth that Quads are so known for. I can speak to this, because I've tried it. IME, a single pair sound better, even though they can't play as loud, or maybe as low, so my second pair sit in boxes as spares.

tyu 25th November 2012 08:44 PM

I have Never seen this done.........but go for it tell us how it sounds...good luck

sreten 25th November 2012 09:05 PM

Hi,

You can double ELS63's, though you do this by placing the second
speaker behind and at a right angle to the front normal speakers.

rgds, sreten.

Done by SME's boss in his reference system ....

desperateaudio 25th November 2012 10:23 PM

Sorry guys I have not been on for a while and I should have given more info. I run OTL amps. The speakers in series is not an issue as the higher ohm output works very well with OTL's. In the room I am looking to do this in is due to the fact I am running a mono system so the plan would be to put 2 esl63's in series on 1 - 150 watt OTL amp. So positive post of one speaker to negative of other and use the alternate posts (positive and negative) remaining to hook up to the amp. What do you guys think about that?

desperateaudio 25th November 2012 10:28 PM

Quote:

Originally Posted by sreten (Post 3256315)
Hi,

You can double ELS63's, though you do this by placing the second
speaker behind and at a right angle to the front normal speakers.

rgds, sreten.

Done by SME's boss in his reference system ....

Thx but r they wired in series or parallel?

desperateaudio 25th November 2012 10:29 PM

Quote:

Originally Posted by Frommerstop (Post 3256271)
You can run two pair parallel (series seems like asking for trouble), just like any other speaker, as long as your amp can handle the load. Why do you ask? If you're thinking of "doubled '63s", it doesn't work all that well. Unlike "doubled '57s", stacking ESL63s changes the "point source" radiation pattern, and creates two point sources... noticeably disturbing the wonderful depth that Quads are so known for. I can speak to this, because I've tried it. IME, a single pair sound better, even though they can't play as loud, or maybe as low, so my second pair sit in boxes as spares.

I'm thinking that exactly. 2 point sources, one on each side of the room driven by one amp mono.

desperateaudio 25th November 2012 10:30 PM

I gues the really question is will it hurt the esl63's as I would like to try it.

sreten 26th November 2012 09:37 AM

Hi,

No reason I can see why it would "hurt" the speakers at lower powers.

Something odd might happen at high powers, the protection in one
setting off the protection in the other, but no real harm AFAICT.

rgds, sreten.

Frommerstop 26th November 2012 05:57 PM

When I tried doubled '63s, I used two amps (stereo Luxman M-12s) , so I sidestepped the wiring issue. I tried them stacked, and side by side... never occurred to me to place them perpendicular to each other. That DOES make some sense, since they basically create a point source aprox a foot behind the center of the speaker, placing the second speaker like that should create two sound sources originating from the same point. Very clever! I could see that working in a very large room, with the speakers in a 90deg. "V" pointed into the room... may create some unwanted cancellation, but it is an interesting idea. I'm tempted to try that, unfortunately I don't have enough room in my current listening space. Maybe when I get my basement space done... sounds like fun!


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