Quad ESL’s, The Peter Walker wonders we call them, as they are a small miracle of engineering and devotion to try and accomplish where all others failed. We, is my brother and I, because he was the first to own a set of Quad ESL’s and I sneaked into his bedroom to listen when he was out.
Now we both own a set ESL-63.
But .... the good restauration of the 63’s has been a nightmare over the years. Several times I have had them refurbished for good money and most of the times I was disappointed about the result I got for that amount of money. I reside in Europe so maybe the good rebuilders are not around here.
So 2,5 years ago after another disappointment that set me back Euro 3.500 I decided to buy a scrap pair of ESL-63 and dismantle them to investigate what went wrong, and why the refurbished ESL’s never sounded as they should.
I will not go into debate whether the original ESL supersedes the ESL-63, but for me the fact that Peter Walker spend another 17 years to improve on the original ESL design says it all, but they are two totally different sets of speakers with both pros and cons.
I started out with my own set of ESL’s paired with the Quad II and 22 pre when I moved from my parents house to my own living space. But the cost of replacing tubes, damaged ESL panels urged me to move on. And the next step was a set of ESL-63 which, as the original ESL and Quad II set, I bought second-hand.
This set with early serial numbers 3219-3220 still has a dominant place in my current living room 35 years later.
But as I mentioned, I was not satisfied with the refurbish jobs done by several companies. The worst of them being Quad Musikwiedergabe in Gering Germany. This company has bought old original Quad equipment, but has a 100% commercial approach, which means: High price, low quality.
So when we started tearing down the scrap ESL-63’s we found out what went wrong in the refurbishing. Long story short, there is no (technical) respect for the delicate design Peter Walker brought into this HiFi world, and most people don’t understand the things that can go wrong when you don’t respect the original design.
So now 2,5 years into our research, with lost of failures, money and hard lessons learned we have now rebuild our own set of ESL-63 to the standard we always wanted, but never could get.
And so now we come to the point to what the ESL-63 is and what it can do.
It can reproduce human voice like no other loudspeaker can. It has distortion levels lower than any loudspeaker around. It’s bass is very tight and goes as low as 37 Hz without distortion. Try that with any conus speaker. Can it play loud? Loud enough for me. It has a soundstage and three dimensional audio image that make the speaker tottaly dissapear. So, I love them. The delay lines, when working properly only after a very good rebuild, give you a holographic sound image that places you in the music. Today I drive them with Schiit Freya pre-amp, Schiit Yggdrasil DAC and Schiit Vidar power amps, although the last ones are not the best match.
Will I ever replace my ESL-63’s for a conus speaker. Simple answer: NEVER! The Peter Walker design in my humble opinion is still a technical and design wonder, even after 35 years. I got to respect it more and more the more we found out during our rebuilding project. Nothing in this speaker is done by accident, everything is very well thought through and in a very delicate balance. Maybe, maybe if we finish this project we will start on the original ESL’s as they now have a cult status. The ESL-63 project was and still is a beautiful trip into the mind of a genius that Peter Walker was.