Interesting Conversation at HI-Fi Sound Four Days Ago

TLS Guy

TLS Guy

Audioholic Jedi
I had my Marantz Universal disc player on the used equipment shelf at Hi-Fi Sound Minneapolis about a year. Scott the owner priced it a $550. I thought this too steep, so I was not surprised it had not sold. So last Friday I went to pick it up to give to member Squishman who wanted a better disc player. The Marantz player was 20 years old and did not play BDs, but all other digital discs.

Anyhow I noted he had for sale an immaculate pair of Quad 57 ESLs.

These were produced unchanged from 1957 to 1985.
I asked why he did not have then hooked up and on display. He told me he did for a while, but that they sounded better than anything else he had for sale and was loosing other speaker sales. He reported that listeners had a strong preference for the Quad, despite being compared to speakers costing thousands.

Quad electrostatic speakers have always been a hard sell, due to frontal size and the necessity to place them at a distance from room boundaries to allow space for the rear radiation as they are bi-polar speakers. In addition you have to be careful not to overpower them as the membrane can be ruined by a spark and each speaker requires an AC connection for the polarizing voltage.

However, I found it really interesting speakers were coming up short in terms of SQ, despite the Quads being at least 40 years older and despite being designed 70 years ago.

Small wonders these speakers send shock waves though the audio industry when premiered at the 1957 Audio Fair at Hotel Russel.

It also reinforces my view that a lot, if not most high priced speakers are not worth the money. Good speakers are actually comparatively rare in my experience. That is another reason I design my own.
 
lovinthehd

lovinthehd

Audioholic Jedi
While I find deficiencies particularly in the low end with electrostatics generally, could be fun to pick that pair up if the price were right and they didn't need servicing.
 
TLS Guy

TLS Guy

Audioholic Jedi
While I find deficiencies particularly in the low end with electrostatics generally, could be fun to pick that pair up if the price were right and they didn't need servicing.
The low end is better then you think, it is just so uncolored and free of artifact. The 3 db. point on the low end is 45Hz.
 
ski2xblack

ski2xblack

Audioholic Samurai
No, but the Quads aren't high spl speakers to begin with. TLS undoubtedly knows the specifics, but iirc they will arc and damage the membranes at 30v or so. Quad used to offer optional voltage limiters on the 405 amps to prevent speaker damage for owners of the 57's. They DON'T withstand teenager or drunkard style listening levels.
 
TLS Guy

TLS Guy

Audioholic Jedi
No, but the Quads aren't high spl speakers to begin with. TLS undoubtedly knows the specifics, but iirc they will arc and damage the membranes at 30v or so. Quad used to offer optional voltage limiters on the 405 amps to prevent speaker damage for owners of the 57's. They DON'T withstand teenager or drunkard style listening levels.
No they don't. They were designed to be powered by the Quad II power amps, which were 15 watts each. 1957 was pre stereo, and stereo burst on the scene in 1958, but essentially was marketed in quantity in 1959. It really exploded the market. So for stereo you needed two Quad II power amps. Peter Walker designed the Quad 22 tube preamp. I have one of those I bought new around 1962. That is in my rig and connected to the Garrard 301 turntable with the Decca ffss arm and heads. That still sounds wonderful and I have an LP head and a 78 head for it. That is a nice historic exhibit.

LP head.



78 head. They slide on and off. Turntable is Quad 22, and the turntable a Garrard 301.



Each channel has three stages of amplification, one EF 86 per channel and an ECC83 in each channel. The latter is two tubes under one glass with the tone, filter and volume circuits between the two halves.
 
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