Meitner MTR-101 and Quad ESL-57

[antonyfirst]

Hello all. I wanted to ask for some advice, as I own such beautiful amps, and I wanted to know if I can mod them at all to drive Quad ESL57 perfectly.
From what I have gathered, the Quads can't be fed over about 25-30W or the panels would arc and die. At the same time the amp needs to be powerful enough (current) to drive a load that varies between 1.5-35 Ohm.
I have been adviced on Bedini 25/25, as it is biased deeply into Class A.
I'd want to know how Meitner MTR-101 (100 + 100 W monoblocks) would fare with the Quad's, as I already own this amplifier.
Would there need to be a protection circuit installed? If so, what exactly, and how would it impact Quad's sound quality, if at all?
Would the MTR-101 even be transparent enough, compared to said Bedini?

Thanks for helping!!
Tony

[AVWERK]

Use of the protection boards is always the way to go if you want safety of those mid/tw
Then you can use any thing you want. Have played them with every kind of high powered amp with no issues at all and the boards show no signs of stress and no arcing!

You can build them for little dollars with a search for the schematic

Regards
David

[triode_al]

I suggest you take a look at this smart device from ESL labs/NL:
Quad ESL protection (clamp) board
Apart from a F5 I also have an OTL (that can easily set the ESL to arc), so it is one of my future projects as well.

[a.wayne]

After hearing ESL57's rebuilt by Picquet I can tell you they can drive to very dynamic levels with no issues ..

If yours are original I would look into having them rebuilt before Doing anything else , 57's do need an amplifier with low impedance stability for the top end to shine , nothing wrong with powering them with 100 watts/ch @8ohm..

I have seen more used with no arcing issues , with Dynamics and Spl 's unheard off before by 57's....

Regards ,

[antonyfirst]

Thanks all, guys. Would the MTR-101's provide enough stability at those low impedances? Could it be modded to obtain better performances, without shipping it overseas to Museatex?

[jacco vermeulen]

The 100W stereo models i'd be scared to use with just any ESL, but the monoblocks have been hooked up to anything from scary Apogees, to Martin Logans and Quads.

A Quad ESL refurbisher overhere used the Meitner monaurals for his artwork, and his own development, the ESl65 : Audio 4 elektrostaten

[moray james]

Tony: at the time that the MTR amp was being born Ed Meitner's reference speakers were Acoustat 2+2's the same holds true for the STR 50 and 55. While it is not commonly known Ed did a lot of R&D work on the segmented Acoustat speakers, Ed and Jim Strickland are good friends. Best regards Moray James.