Quad ESL 57 connection

discurio · 18th April 2011, 06:22 PM

In twin Quads ESL 57 pannels drived by a Quad II amplifier at 15 ohms output impedance, what is the best connection: series or parallel.

arend-jan · 19th April 2011, 01:43 PM

Normally, the preferred way to hook them up is parallel. Anyway this is what Quad recommended.

The Quad II is a nice amplifier for one set of ESLs but a bit under powered to drive two sets, be it series or parallel. I'd suggest you try both and see what sounds best to you. Also try with the output wired for 8 Ohms. Better would be to give each set it's own amplifier.

One of my clients has a triple stack of ESLs and he's using the Transcendent OTL mono blocks to power them. A small alteration to the feedback loop was required to get it stable. This was only required with the speakers hooked up in series. He preferred series connection reporting better transparency.

discurio · 20th April 2011, 02:04 AM

Quote:

Originally Posted by arend-jan

Normally, the preferred way to hook them up is parallel. Anyway this is what Quad recommended.

The Quad II is a nice amplifier for one set of ESLs but a bit under powered to drive two sets, be it series or parallel. I'd suggest you try both and see what sounds best to you. Also try with the output wired for 8 Ohms. Better would be to give each set it's own amplifier.

One of my clients has a triple stack of ESLs and he's using the Transcendent OTL mono blocks to power them. A small alteration to the feedback loop was required to get it stable. This was only required with the speakers hooked up in series. He preferred series connection reporting better transparency.

Ok! Maybe better driving it with a Julius Futterman OTL 3 or a Doktor Gizmo New York powers I know, however these amps are hard-to-find nowadays.

I go try too my Quad 303 at 8 ohms.

Many thanks

discurio · 20th April 2011, 02:25 AM

Ok! Maybe better driving it with a Julius Futtermann OTL 3 or a Doktor Gizmo New York powers I know, however is very hard-to-find these amps nowadays.

I go try too my Quad 303 at 8 ohms.

Many thanks

18th April 2011, 06:22 PM	#1
discurio diyAudio Member Join Date: Apr 2011	Quad ESL 57 connection In twin Quads ESL 57 pannels drived by a Quad II amplifier at 15 ohms output impedance, what is the best connection: series or parallel.

19th April 2011, 01:43 PM	#2
arend-jan diyAudio Member Join Date: May 2006 Location: Netherlands	Normally, the preferred way to hook them up is parallel. Anyway this is what Quad recommended. The Quad II is a nice amplifier for one set of ESLs but a bit under powered to drive two sets, be it series or parallel. I'd suggest you try both and see what sounds best to you. Also try with the output wired for 8 Ohms. Better would be to give each set it's own amplifier. One of my clients has a triple stack of ESLs and he's using the Transcendent OTL mono blocks to power them. A small alteration to the feedback loop was required to get it stable. This was only required with the speakers hooked up in series. He preferred series connection reporting better transparency. __________________ my Quad ESL website.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Refurbing Quad ESL-57....Some Queries!	Fanuc	Planars & Exotics	14	2nd January 2012 11:12 AM
Quad ESL 57: electrical measurement (capacitance)	Fabien Lefebvre	Planars & Exotics	1	19th November 2010 01:22 AM
QuAD ESL 57 Question	dude007	Planars & Exotics	30	5th March 2010 07:45 PM
QuAD ESL 57 in a small room?	dude007	Planars & Exotics	3	26th November 2007 02:22 PM
Quad ESL-57 (pair)	TimA	Swap Meet	2	14th November 2005 11:34 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

20th April 2011, 02:25 AM	#4
discurio diyAudio Member Join Date: Apr 2011	Ok! Maybe better driving it with a Julius Futtermann OTL 3 or a Doktor Gizmo New York powers I know, however is very hard-to-find these amps nowadays. I go try too my Quad 303 at 8 ohms. Many thanks

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)