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Rare and Special materials not available elsewhere
 
 
 
 
 

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Techniques explained, parts, suppliers and weird shit.
 
  • Introduction

    The Quad ESL was the world's very first full range, commercially available electrostatic loudspeaker. In spite of its great antiquity (some 50 years old to date) it was voted the "Greatest Hi-Fi Product of All Time" by Hi-Fi News and record review in the January 2000 issue of that journal. Read More
  • FixIt

    The Quad Electrostatic Loudspeaker is one of those very, very few things that you may own which is about 20 to 30 years old, that you would want to spend any time restoring to original condition. However, it seems that there's quite a few folks out there who still prize Read More
  • Parts

    All the very special materials like diaphragm film (6 micron) and coatings - CALATON and ELVAMIDE - have 'moved' to Area 51. You'll find special 'kits' there also, along with dust cover material and the pride of the site, some tensilised 6-micron treble panel film and 12-micron PVC bass panel film, at Read More
  • Amplifiers

    If there was ever a contentious topic of discussion not directly involved with the Quad electrostatic speaker itself, then this is it. I think I have seen and read more correspondence on the matter of amplifiers than everything but the coating material on the diaphragms and the "Did they coat Read More
  • Patents

      Filed: July 15, 1955 U.S. Patent 3,008,013Granted: November 7, 1961 David Theodore Nelson Williamson, Edinburgh, Scotland assigned rights to Ferranti Ltd., London. Peter James Walker of Huntingdon, England."Electrostatic Loudspeakers" Read More
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Aurealis Audio

 A Great 
 Cable

Aura Turntable

The Aura

A Great Turntable

Popular Articles

  • Introduction >

    The Quad ESL was the world's very first full range, commercially available electrostatic loudspeaker. In spite of its great antiquity Read More
  • Christian Steingruber >

    Amplification for Quads - Fifth Edition by Christian Steingruber "All amplifiers sound the same" - Peter Walker "Amplifiers DO sound different" - Martin Read More
  • Walker & Albinson 1976 U.S. >

    Filed: January 10, 1975U.S. Patent 3,970,953Granted: July 20, 1976 "Distortion-Free Amplifiers"Peter James Walker and Michael Peter Albinson Read More
  • Wiring Diagrams >

    You've taken the old Quads apart and Holy Shit(!) Batman, the wiring is NOT colour-coded!! What can you do? The Read More
  • Top Components >

    There are very few components that I would unreservedly trust to put in my own Quads. Pre-built components, that is. Read More
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Interviews and Reviews

  • icon Walker 1978
  • icon AES Lecture
  • icon Mike Albinson
  • icon Hi Fi News 1957
  • icon Quad 410
  • icon Audio Critic 1980
  • icon Sound Practices 1994
  • icon Classic Hi Fi 1996
  • icon The Listener 1998
  • icon The Audiophile 1998
  • icon OTLs and Quad
  • icon Futterman OTL
  • icon Gang of Five

'Audio Amateur'

Interviews Peter Walker at the Quad Factory in 1978

TAA: What do you consider to be the important goals of a good audio reproduction system what ought a good audio reproduction system do?

PW: Well, perhaps this reflects my age (62 at the time of the interview), but I am still in favour of documentary type reproduction - an orchestra plays on a stage

Read More

Click the images below (l to r) in succession to see Walker's address to the U.K. Audio Engineering Society in 1979 on the Quad ESL 63

Read More

ACOUSTICAL MANUFACTURING's Mike Albinson, co-designer of the revolutionary Quad 405 power amplifier, and outspoken critic of many current fashionable amplifier theories, is our subject this month.

Practical Hi-Fi: The Quad 405 represents something fairly unique in modern Hi-Fi amplifier design. What led you to the concept of feed-forward instead of the more normal feedback?

Mike Albinson: Difficult question, but I have a stock answer to

Read More

The Quad Electrostatic Speaker

by Ralph West

The recent appearance of a full range ESL designed and produced by a well-known manufacturer specialising in high quality reproduction, was bound to cause considerable comment and speculation. This speaker, the "Quad" electrostatic, is now in production, and we are pleased to present our readers with a full review of a specimen drawn from current production. The makers

Read More

No, Quad have not capped off their recent release of the ESL 63 speaker with a new amplifier! The 410 is in fact the designation given to the 405 power amplifier when its channels are bridged together to give a mono amplifier of effectively 180 watts. In fact, it is even possible to bridge a pair of these 410 amplifiers to give a mono amplifier

Read More

The AUDIO-CRITIC Volume 2, Number 3 (Spring to Fall 1980) wrote:

QUAD ELECTROSTATIC LOUDSPEAKER

"This all-time classic needs no introduction to any audiophile who knows enough to read equipment reviews at all. It has survived virtually unchanged for a quarter of a century (the manufacturer claims there have been no changes whatsoever, large or small, but we take that with a grain of salt); we,

Read More

Sound Practices - 1994

The Quad Electrostatic Loudspeaker

by Haden Boardman / Mellotone Acoustics

A good electrostatic has something special, a magic spell that weaves itself over you. Critics (of which there are few) moan on ~bout "won't play rock" or "only for string quartets". Ask these plaintiffs what system they have, or what kind of speakers, and the usual response is some old west coast monster.

Read More

Hi-Fi News and Record Review, UK.

Classic Hi-Fi, Jun 1996

Restoration Drama by Ken Kessler

In late 1995, the Bugatti Owners' Club produced facsimile reprints of all of the issues of the Club Magazine, Buganacs, issued before WWII. It was telling to read articles from, say, 1938, about the trials and tribulations of working on even 10 year old vehicles, at a time when the

Read More

The Quadfather

In the beginning, there was the Quad ESL, the world's first full-range electrostatic loudspeaker.

An appreciation, by Chris Beeching

Quad ESL loudspeaker: available used for between $600 and $2000 per pair and up, depending on condition. Originally manufactured by Quad Electroacoustics, Huntington, England.Surely the venerable Quad speaker is one of the most enduring of all quality hi-fi products ever made.Since it took the

Read More

Quad ESLs:Then and Now

Blair Roger

Can a loudspeaker be all things to all people? Probably not, but the Quads take a damn good shot at it and I'll dispute anyone who says otherwise.

Genesis

Peter Walker and his engineering team have been unconventional and pragmatic thinkers since S. P. Fidelity Sound Systems was founded in 1936. By 1938 they were manufacturing a portable public

Read More

The history of this amp's circuit starts twenty five years ago when Julius Futterman, understanding the limitations of the output transformers. patented an Output Transformerless design. The clarity of the sound has been unsurpassed to this day and a cadre of serious music listeners has remained steadfast to the genius of Julius Futterman. The man was the embodiment of integrity in the audio world and

Read More

Letter to the Editor


(Julius Futterman)

"I am pleased with your evaluation of the sonic virtues of the H-3aa power amplifier but do take exception to two of your assertions :

The power tubes I use (6LF6) are being manufactured in the USA by GE and Sylvania. They are also being made in Japan and Yugoslavia. I have been informed that they will be around for

Read More

Gang of Five

Gary Jacobson

N.B. This article is about 10 years old. Therefore an historical document!

Any advice and observations that it contains should therefore NOT be taken as being, in any way current.

Introduction

Madness strikes at all hours of the day and night, so I can’t tell you exactly when it occurred to me to assemble a collection of treble panels from

Read More

Original ESL Patents

  • icon Masolle 1921
  • icon Lee 1925
  • icon Depew 1926
  • icon Hahnemann 1928
  • icon Hartley 1928
  • icon Kellogg 1929
  • icon Rauser 1930
  • icon Rauser 1931
  • icon Vogt 1930
  • icon Vogt 1928
  • icon High 1930
  • icon Kellogg 1929/2
  • icon Etablissements S.M. 1946
  • icon Janszen 1949
  • icon Kock 1951
  • icon Curry 1953
  • icon Parker 1954
  • icon Williamson 1955
  • icon Williamson 1957

Filed: November 28, 1921
U.S. Patent 1,550,381
Granted: August 18, 1925

Joseph Masolle, Hans Vogt and Josef Engl assignors to Tri-Ergon Ltd., of Zurich, Switzerland
"Electrostatic Telephone"

Referenced by Walker and Williamson in
U.S. Pat. 3,008,014.

Read More

 

Filed: May 2, 1925
U.S. Patent 1,622,039
Granted: March 22, 1927

Frederick W. Lee, Owing Mills, Maryland.
"Apparatus for and Method of Reproducing Sound".

Referenced by Walker and Williamson in U.S. Pats. 3,008,013 & 3,008,014.

Read More

Filed: February 12, 1926
U.S. Patent 1,631,583
Granted: June 7, 1927

John Depew, of New York.
"Capacitatively Actuated Loudspeaker".

Referenced by Walker and Williamson in U.S. Pat. 3,008,014

Read More

Filed: March 24, 1926
U.S. Patent 1,674,683
Granted: June 26, 1928

Walter Hahnemann, Kitzberg, Germany, assigned rights to Lorenz Aktiengesellschaft.
"Arrangement for Uniform Electrical Sound Transmission".

Referenced by Walker and Williamson in U.S. Pat. 3,008,013

Read More

Filed: June 6, 1928
U.S. Patent 1,762,981
Granted: June 10, 1930

Ralph V.L. Hartley of South Orange, N.J. assigned rights to Bell Telephone Labs., N.Y.
"Acoustic Device"

Referenced by Walker and Williamson in U.S. Pats. 3,008,013 & 3,008,014

Read More

Filed: Sept. 27, 1929
G.B. Patent 346,646
Granted: April 16, 1931

Edward Washburn Kellogg, Schenectady, N.Y. assigned rights to General Electric Co. N.Y.
"Production of Sound"

Indirectly Referenced by Walker and Williamson in U.S. Pats. 3,008,013

Read More

Filed: February 12, 1930
G.B. Patent 348,573
Granted: May 12, 1931

Albert Rauser and Wilhelm Steuer, of Kottbuser-Ufer 39/40, Berlin, S.O. 26
"Improvements Relating to Electrostatic Loud-speakers".

Referenced by Walker and Williamson in U.S. Pat. 3,008,014

Read More

Filed: June 1, 1931
G.B. Patent 370,248
Granted: April 7, 1932

Albert Rauser and Wilhelm Steuer, of Kottbuser-Ufer 39/40, Berlin, S.O. 26
"Improvements in Electrostatic Loud-speakers".

Referenced by Walker and Williamson in U.S. Pat. 3,008,014

Read More

Filed: Sept. 8, 1930
G.B. Patent 372,649
Granted: May 12, 1932

Hans Vogt, Genthinerstrasse 17, Berlin, W. 35, Germany.
"Improvements Relating to the Insulation of Fixed Electrodes of Electrostatic Loudspeakers"

Indirectly Referenced by Walker and Williamson in U.S. Pat. 3,008,014

Read More

Filed: Sept. 15, 1928
U.S. Patent 1,881,107
Granted: Oct. 4, 1932

Hans Vogt of Berlin-Wilmersdorf, Germany.
"Sounding Condenser"

Referenced by Walker and Williamson in U.S. Pat. 3,008,013. Also ref: GB Patent 322,744 with 17 claims, granted December 10, 1929

Read More

Filed: July 30, 1930
U.S. Patent 1,930,518
Granted: October 17, 1933

Jurjen S. High of Camden, N.J. assigned rights to Westinghouse Electric and Manufacturing Co. Pennsylvania.
"Electrostatic Loudspeaker"

Referenced by Walker and Williamson in U.S. Pats. 3,008,013 & 3,008,014

Read More

Filed: Sept. 27, 1929
U.S. Patent 1,983,377
Granted: December 4, 1934

Edward Washburn Kellogg, Schenectady, N.Y. assigned rights to General Electric Co., N.Y.
"Production of Sound"

Referenced by Walker and Williamson in U.S. Pat. 3,008,013. Also ref: GB Patent 346,646 which pre-dates this grant of patent on the same device.

See prior citation of E.W. Kellogg.

Read More

Filed: April 9, 1946
G.B. Patent 610,297
Granted: Oct. 13, 1948

Etablissements S.M. Body Corporate of 26 Rue de Lagny, Paris.
"Improvements in Electrostatic Microphones and Loud-speakers"

Referenced by Walker and Williamson in U.S. Pat. 3,008,013.

Read More

Filed: October 5, 1949
U.S. Patent 2,631,196
Granted: October 5, 1953

Arthur A. Janszen, Cambridge, Mass.
"Electrostatic Loud-Speaker"

Referenced by Walker and Williamson in U.S. Pats. 3,008,013 & 3,008,014.

Read More

Filed: December 12, 1951
U.S. Patent 2,796,467
Granted: June 18, 1957

Winston E. Kock, Basking Ridge, N.J., assigned rights to Bell Telephone Labs., N.Y.
"Directional Transducer"

Referenced by Walker and Williamson in U.S. Pats. 3,008,013 & 3,008,014.

Read More

Filed: December 11, 1953
U.S. Patent 2,855,467
Granted: October 7, 1958

Paul Curry, New Haven, Connecticut assigned rights to Curry Electronics Inc., New Haven, Conn.
"Loudspeakers"

Referenced by Walker and Williamson in U.S. Pat. 3,008,014.

Read More

Filed: November 29, 1954
U.S. Patent 2,864,899
Granted: December 16, 1958

Henry W. Parker, Flushing, N.Y.
"Transducer"

Referenced by Walker and Williamson in U.S. Pat. 3,008,014.

Read More

 

Filed: July 15, 1955

U.S. Patent 3,008,013
Granted: November 7, 1961

David Theodore Nelson Williamson, Edinburgh, Scotland assigned rights to Ferranti Ltd., London. Peter James Walker of Huntingdon, England.
"Electrostatic Loudspeakers"

Read More

Filed: September 12, 1957
U.S. Patent 3,008,014
Granted: November 7, 1961

David Theodore Nelson Williamson, Edinburgh, Scotland assigned rights to Ferranti Ltd., London. Peter James Walker of Huntingdon, England.
"Electrostatic Loudspeakers"

Read More

ESL 63 Patents

  • icon Kellogg 1929
  • icon Shorter 1940
  • icon Dome 1941
  • icon Harry 1943
  • icon Stolaroff 1948
  • icon Wilkins 1954
  • icon Wilkins 1956
  • icon Macdonald 1958
  • icon Wright 1958
  • icon Wang 1967
  • icon Walker 1970

Filed: September 27, 1929
U.S. Patent 1,983,377
Granted: December 4, 1934

Edward W. Kellogg "Production of Sound"

Referenced by Walker in U.S. Pat. 3,773,984.

Read More

Filed: February 21, 1940

G.B. Patent 537,931
Granted: July 14, 1941

Donovan Ernest Lea Shorter
"Improvements in Electrostatic Loudspeakers"

Referenced by Walker U.S. Pats. 3,773,984.

Read More

Filed: January 28, 1941
U.S. Patent 2,302,493
Granted: November 17, 1942

Robert B. Dome, Bridgeport, Connecticut
"Amplifying System".
 Referenced by Walker in U.S. Pat. 3,773,984.

Read More

Filed: June 24, 1943
U.S. Patent 2,387,845
Granted: October 30, 1945

William R. Harry, Summit, New Jersey
"Electroacoustic Transducer".

Referenced by Walker U.S. Pat. 3,773,984.

Read More

Filed: December 18, 1948
U.S. Patent 2,634,335
Granted: April 7, 1953

Myron B. Stolaroff, Redwood City, California assignor to Ampex Corporation
"Magnetic Recording System with Negative Feedback System."

Referenced by Walker U.S. Pat. 3,773,984.

Read More

Filed: May 19, 1954
U.S. Patent 2,843,671
Granted: July 15, 1958

Charles A. Wilkins and Herbert Sullivan, New York
"Feed Back Amplifiers"

Referenced by Walker in U.S. Pats. 3,773,984

Read More

Filed: August 29, 1956
U.S. Patent 2,905,761
Granted: September 22, 1959

Charles A. Wilkins, New York.
"Control of Amplifier Source Resistance"

Read More

Filed: September 9, 1958
U.S. Patent 3,061,675
Granted: October 30, 1962

James Ross Macdonald
"Loudspeaker Improvement"
[
Claims 1-5], [Claim 5 ]. Diagrams:[Sheet 1] [Sheet 2]
Referenced by Walker in U.S. Pat. 3,773,984.

Read More

Filed: December 10, 1958
U.S. Patent 3,135,838
Granted: June 2, 1964

William M. Wright, Boston Mass.
"Electrostatic Loudspeaker"

Referenced by Walker in U.S. Pat. 3,773,984.

Read More

Filed: May 18, 1967
U.S. Patent 3,542,952
Granted: November 24, 1970

Chien San Wang, Denver, Colorado
"Low Distortion Signal Reproduction Apparatus"
 
Referenced by Walker in U.S. Pat. 3,773,984.

Read More

Filed: November 3, 1970
U.S. Patent 3,773,984
Granted: November 20, 1973

Peter James Walker of Huntingdon, England.
"Electrostatic Loudspeaker with Constant Current Drive"

Read More

Quad 405 Patents

  • icon Ketchlidge 1956
  • icon Walker & Albinson 1976 U.S.
  • icon Walker & Albinson 1976 G.B.

Filed: September 26, 1952
U.S. Patent 2,751,442
Granted: June 19, 1956

Raymond W. Ketchlidge

"Distortionless Feedback Amplifier"
Referenced by Walker in U.S. Pat. 3,773,984.

Read More

Filed: January 10, 1975
U.S. Patent 3,970,953
Granted: July 20, 1976

"Distortion-Free Amplifiers"
Peter James Walker and Michael Peter Albinson

Read More

 

Filed: January 10, 1975
U.S. Patent 3,970,953
Granted: July 20, 1976

"Distortion-Free Amplifiers"
Peter James Walker and Michael Peter Albinson

Read More

The Quad Electrostatic Loudspeaker is one of those very, very few things that you may own which is about 20 to 30 years old, that you would want to spend any time restoring to original condition. However, it seems that there's quite a few folks out there who still prize the sound of this speaker above all others, and stacked pairs of them...(?)...even more so.

So, you've taken the "mental plunge". You've got the mind set. You're going to buy a pair and restore them, or you have to restore a pair you were left in your Uncle's estate, or you have to restore a pair you've owned yourself for 25 years. The pages in the links (above left) are full of information on "How To..." do various things to a Quad Electrostatic Loudspeaker. The task of restoration requires patience, care and attention to detail. Some parts are hard to get, others irreplaceable. Oh, and if you're not to familiar or comfortable with handling the high internal voltages involved, don't do it at all. Some errors are merely shocking, others may be fatal.

My personal philosophy is to bring the speaker back to its original condition as far as possible. I don't use graphite coatings. I don't use LED power lamps. I don't use ... a lot of things. Why? There are better materials available for some parts of the speaker now? Yes, in some cases that is true, but I would like mine the way they were, except where old components might be inadequate or dangerous (e.g. old wire, diodes, resistors). How you re-build yours? That's your decision.

 

All the very special materials like diaphragm film (6 micron) and coatings - CALATON and ELVAMIDE - have 'moved' to Area 51. You'll find special 'kits' there also, along with dust cover material and the pride of the site, some tensilised 6-micron treble panel film and 12-micron PVC bass panel film, at very good prices for re-building your EHTs. Remember, all parts on this site have been tried and tested in the original Quad ESL, and are known to work properly. The tensilised P.E.T. film is a made-to-order film that is exactly to the original Quad specification.

Why buy at The Quad ESL?
All materials offered here have been tried and tested in the original Quad Electrostatic Loudspeaker, and are known to work in that application. Secondly, some of these materials (e.g. CALATON and Tensilized P.E.T. are only available here).

Some of your prices are a bit higher than I can get elsewhere...
Yes, but only a little, and as I say above, the materials are tried and tested in this application. So you know it will work in your ESL when used properly, and you don't waste time and effort searching the world for materials that may or may not work in this speaker - I've been there, done that, for you - so a slightly higher price.

What guarantees do I have?
Money back if not satisfied with the material. Plus, you will probably blacken my name from here to the ends of the earth on the Internet in about an hour, if I sell you garbage, or don't supply at all!

What's the money for?
As I say at the top of the page here, a small number of sales or commissions will keep this site on-line - pay InterNIC rego. fees, and ISP fees. This is a non-profit site.

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Tools and Parts

 

 

When you disassemble a Quad Electrostatic respect the high voltages! If in doubt - don't! You will need a cross-head screwdriver, flat bladed screwdriver, soldering iron and solder, a Stanley knife, pen and paper, and the specialised tools listed below:

 

 

 

 

Description

Supplier

Part No.

Purpose

High Voltage Probe

RS-Components(?),Davison

610-281

Essential for measurement of panel voltages at 1.5kV and 6kV

Silver Loaded Paint

RS-Components

186-3600

Repair any arcing damage to stator conductive layers

Red Heat Shrink Tube

RS-Components, Dick Smith Electronics, Jaycar Electronics

398-278

Insulate Solder Posts on Bass Panel

22 M resistor

RS-Components

164-8445

Can be used in treble panel EHT line, but not recommended. [See FAQs]

10 M resistor

RS-Components

164-8401

Can be used in bass panel EHT line, but not recommended. [See FAQs]

2.2 M resistor

RS-Components, Dick Smith Electronics, Jaycar Electronics

RS164-83 16

Input side of EHT ladder circuit.

330 k resistor

RS-Components, Dick Smith Electronics, Jaycar Electronics

RS149-10 5

Input side of EHT ladder circuit

Heavy Duty PVC Tape

Any Hardware Shop

Not Relevant

Sealing panels and dust cover edges.

Scotch ™Conformable Insulation Tape (High Voltage)

3M Corporation

Cat. 392NA

Sealing panels and dust cover edges.

"Standard" Silicon Diode 1N4007

RS-Components, Dick Smith Electronics, Jaycar Electronics

RS261-98 0

EHT ladder circuit.

Isopropanol

RS-Components, Scientific Supply Houses

RS693-77 5

Cleaning various parts. Non-agressive on most plastics.

Anti Corona Lacquer (circuit board lacquer)

RS-Components, Dick Smith Electronics, Jaycar Electronics

RS569-31 3

Insulate any repairs to damaged areas.

M3 bolt, 8 - 9 mm

Dick Smith Electronics, Jaycar Electronics

Relevant Catalog, or online

Hold treble panel together, (60 per panel).

M3 12mm bolts

Dick Smith Electronics, Jaycar Electronics

Relevant Catalog, or online

Hold bass panel together, (60 per panel)

M3 nut to suit above bolts

Dick Smith Electronics, Jaycar Electronics

Relevant Catalog, or online

Hold bass panel together, (60 per panel)

M3 washers (2 per bolt)

Dick Smith Electronics, Jaycar Electronics

Relevant Catalog, or online

Hold bass panel together, (60 per panel)

High Voltage Wire - Alpha Test Lead

Mouser Electronics, Texas

Buy Online

Rewire bass panels.

High Voltage Capacitors

Area 51

Buy Online

Rebuild EHT blocks

High Voltage Diodes

Mouser Electronics, Texas

Buy Online

Rebuild EHT blocks

 

 

Specialised Materials

 

 

 

Material Name

Purpose

Mylar®, Melinex®, Clysar®, Hostaphan®. All of these are proprietary names for P.E.T. - Polyethylene Pterypthalate film. Mylar® is considered the best material, as it will hold any given tension, short of breaking, for many years. The replacement film available on this site is just as good - Area 51 - we have had it made to specification for this speaker.

12 mm Mylar® is used frequently to make treble and bass diaphragms. The original Quad used 6 micron tensilised Mylar® in the treble panel. Although PETP films are available down to 0.9mm in thickness, it is in debate that most would hold the necessary tensions for long, although 6 mm Hostaphan® has shown some promise recently in trials. Tensilised films are still available, though you generally find you have to buy a minimum lot of 8 tonnes of the stuff!!

Sources: (6-micron tensilised film)              The Quad ESL Site - Area 51

Sources: (12-micron film)
The ESL Info Exchange (Barry Waldron's Catalogue)

 

Diaphragm Coating Material?
Hand Soap, Graphite, Anti-static Spray and even Wall Paper Paste. None of these were used by Quad. Quad used a soluble nylon called CALATON ® made by I.C.I. (U.K.). It is no longer commercially available. You can still use DIY nylon coatings though.

The common substances mentioned can be bought just about anywhere.
Specialised permanent anti-statics can be bought from computer consumable suppliers.
A soluble nylon ELVAMIDE®; is available from Du Pont and Area 51. DIY soluble nylon is possible, depending on your access to certain chemicals.

The original Quad coating - CALATON CB - is available here - Area 51.

 

Quad 63 - Diaphragm Materials and Repair Information

Quads Unlimited is a relative newcomer to the Quad ESL rebuilding scene and like most, was started by an enthusiast who was initially so impressed by the essential “rightness” of this speaker in reproducing music that he had to keep restoring them - for both love and money. Wayne Picquet is the man behind “Quads Unlimited” and his attention to detail both cosmetically and sonically in his restoration of this classic speaker have earned him a position of respect in the Quad rebuilding community over the past few years. Wayne is located in Longwood, FLorida, U.S.A. Reviews of his work appear elsewhere on this site: See The Gang of Five, PK Panels and Wayne’s Restoration Drama.

Contact Details:

Wayne Picquet

110 Shady Lane
Longwood
Florida    U.S.A.    32750

Tel: (407) 260-6448
email: This email address is being protected from spambots. You need JavaScript enabled to view it.

 Here is a few examples of Wayne’s restoration work and current prices: (click below for full image)