Amp recommendations for ESL 9025

Have a pair of ESL 9205's coming and now wondering about something to run them.
I have only two power amps one a Naim 160 which I'm not sure if it would run them.
The Second was built by someone I know it coped well with a pair of 57's, about 70w
If the worst comes to the worst I can get something else but haven't a fortune to spend at
present also something that is easily available in UK.

Thanks, Ray
 
Last edited:
Hi,

since this is about DIY ... how about an L12-2 amp kit?
It has proven to drive even enigmatic ESL loads easily and it sounds well .... and is very affordable.;)
Just see that You get the original from LJM.
You find a couple of threads here at DIYaudio.
I wrote about it also and presented some optional modifications on my website.

jauu
Calvin
 
  • Like
Reactions: 1 users
Excuse me for asking. I assume 9502 and 53 model numbers are both typos and Quad 2905 and 57 or 63 are meant here.
Not a DIY amp person, so no advice there. Sorry.
No questions about the rebuild of the speakers, so it looks like you have all the information, knowledge and materials you need for those available.
Or are the ESL questions coming later, when work is in progress.
 
Excuse me for asking. I assume 9502 and 53 model numbers are both typos and Quad 2905 and 57 or 63 are meant here.
Not a DIY amp person, so no advice there. Sorry.
No questions about the rebuild of the speakers, so it looks like you have all the information, knowledge and materials you need for those available.
Or are the ESL questions coming later, when work is in progress.
Some might suggest that the correct designation for the original Quad ESL is the ESL. Some might also quibble that if a numeric designation for the ESL might actually be 53, rather than 57 😉
 
I have heard and read about ESL, ESL 55 and ESL 57, ESL 53 is new to me. In fact just ESL is the most correct name as far as I know. To limit confusion with later models the year is often added. Purists hate that. YMMV.
@Ray Lough nothing about protocol, just wanted to make sure I understood the models and brand correct.
Let's move on, nothing to see here.
 
  • Like
Reactions: 1 user
Can't go wrong with a Quad current dumper power amp like the 609, 703, 908 or even a Delice or Pantera
It must be me again, like with the speaker numbers mentioned in the first post, I have looked everywhere on the internet and none of these numbers or names I can relate to any Quad amplifier.
609? I know of 606 and 909. 703? not a clue. 908? Again 606 or 909. Delice? not a clue. Pantera? Artera maybe?
 
Last edited:
  • Like
Reactions: 1 user
I think Zombies reply was, most likely a clever play on my question; I found it very amusing.

Rightly or wrongly I have now edited my very first post to reflect the correct designation, in the spirit of honesty and being a mere mortal and fallible creature this was something I resisted.

If there is any objection I will be happy to restore back to my original numeration.
 
Last edited:
  • Like
Reactions: 1 user
I think Zombies reply was, most likely a clever play on my question; I found it very amusing.
rofl-emoji.gif
 
  • Like
Reactions: 1 user
Very much enjoying this thread, because it reminds me of why I sold my Quad speakers last year. I was continually embarrassed at high-end audiophile cocktail parties by smirking high-end audiophiles who I knew were judging me because I was tongue-tied when asked about which Quad speakers I owned. ;)
Glad your enjoying it, few of us are without our little oddities or indulgences, life would be very dull if we all had Intel processors implanted in our skull. :)
 
  • Like
Reactions: 1 user
I have heard the 2905 and Stacked 57's used with a Neurochrome Modulus 86.
The Amp's the Neurochrome temporarily substituted in the systems have been EAR > 2905 and Sansui AU 111 > Stacked 57's.

The Modulus 86 can be produced very affordably and has performed very will in comparison to these Amp's and driving these Speakers.
 
Thanks JohnnoG, I looked at the LJM L12-2 as Calvin suggested and wondered if it may be simple enough, or even wise to parallel two boards to get double the current, without straying out of my all to limited experience in electronics.

Had a fleeting glance at the Neurochrome Modulus 86, but I'll get a read later as darkness sets in and things calm down.
 
Hi,

why would You think about doubling current capability?
It's the load that defines the amount of current flowing through it.
If the amplifier is able to supply for more current than the load requires then there's no need to beef it up.
Simple paralleling amp outputs wo balancing resistors could lead to considerable amounts of current flowing between the amps.
So I wouldn't advise for doing that, but rather use a more potent amp in first place.
The L12-2 feature high stability into complex loads and 2 pairs of output transistors (100W specced, each) which should be plenty sufficient for any Quad.
For esls the Quads present rather soft complex loads, quite easy to drive.
I never experienced issues with the L12-2 running into my own very more difficult to drive panels.

jauu
Calvin
 
Calvin,

Thanks for clarification my understanding of electronics is not advanced. I imagined modern 6 panel ESL's to be a tough load, and having availability of more current via paralleling two amps would give the amp an easier time driving them. I had been reading on paralleling amps last night and see they need very careful matching and even then the likelihood of creating unnecessary trouble down the road seems high.

Ray