Products > Amp Audio Upgrade Kits > Quad Amplifiers

Our audio upgrade kits offer a selection of the best quality modern production items along with high quality new old stock valves to give you an improved sound and a cost effective upgrade. We have over 30 years' experience with using and listening to high end audio amplifiers and over 25 years in improving the valves. These kits have been put together after many hours of listening tests to confirm the valves performance in any given application.

Since Peter Walker founded Quad in 1936, all Quad products have displayed originality in design and outstanding audio excellence. A world leader in audio amplifier and electrostatic speaker design, Quad has been recognised by awards from around the world including the Queen's Award for Technological Achievement in 1978 the only one ever presented to an audio hi-fi equipment manufacturer. It is hard to believe that the legendary Quad 11 was discontinued in 1970, yet my own Quad 11 still outperforms many high end amplifies some 45 years on. Our kits use the best current production and NOS valves to help you get the best sound out of these legendary amplifiers.

Order By
Total : 19 | Page 1 of 1
  • First | 
  •  Previous | 
  •  Next | 
  •  Last 
  • NameManufacturerCommentStockPrice PhotoOrder
  • Quad 22 Control Unit Harma Retro EF86 Mullard Upgrade kitQuad Amplifiers Original Quad 22 pre amplifier unit that was introduced in 1953 and remained in production until 1971. Absolute Classic ...In stock£102.00
    £81.60
    Buy Now
  • Quad 22 Control Unit Harma Retro EF86 Siemens Upgrade kitQuad Amplifiers Original Quad 22 pre amplifier unit that was introduced in 1953 and remained in production until 1971. Absolute Classic ...In stock£76.00
    £60.80
    Buy Now
  • Quad QC 24 Pre Amp Upgrade kitQuad Amplifiers Quad QC-24 Pre amp is a modern day upgrade to the classic quad control unit.The QC Twenty Four has 2 main outputs, 2 ...In stock£16.00Buy Now
  • Quad QC 24P Phono Stage Upgrade kitQuad Amplifiers The Quad QC 24 dedicated valve phono stage was designed by Tim De Paravicini. This unit features a moving magnet/ ...In stock£64.00Buy Now
  • Quad 11 Classic Amplifier Harma KT66 Retro Mullard EF86 Upgrade Kit PairQuad Amplifiers The modern remake of the legendary Quad 11 power amplifier that shot the company to fame and fortune.The Mullard EF86 ...In stock£324.00
    £307.80
    Buy Now
  • Quad 11 Eighty Mono Power Amplifier JJ KT88 6SL7 Upgrade Kit Pair Quad Amplifiers The Quad II Eighty mono power amplifier upgrade kit is for a pair of monoblock amplifiers. The Quad 11 Eighty is an ...In stock£392.00
    £372.40
    Buy Now
  • Quad 11 Eighty Mono Power Amplifier JJ KT88 6188 Upgrade Kit Pair PremiumQuad Amplifiers 5% Discount

    The Quad II Eighty mono power amplifier upgrade kit is for a pair of monoblock amplifiers. The Quad ...
    In stock£452.00
    £429.40
    Buy Now
  • Quad 11 Eighty Mono Power Amplifier Gold Lion KT88 6188 Upgrade Kit Pair PremiumQuad Amplifiers The Quad II-Eighty mono power amplifier upgrade kit is for a pair of monoblock amplifiers. The Quad 11 Eighty is an ...Sold Out£540.00Buy Now
  • Quad 11 Forty Mono Power Amplifier JJ KT88 Upgrade Kit PairQuad Amplifiers Special Offer

    The Quad II-Forty mono power amplifier upgrade kit is for a pair of monoblock amplifiers. The ...
    In stock£212.00
    £190.80
    Buy Now
  • Quad 11 Integrated Amplifier Harma KT66 Philips Upgrade KitQuad Amplifiers A modern integrated amplifier which incorporated the legendary Quad 11 output section.The Harma ECC83 Retro is a true ...In stock£244.00
    £231.80
    Buy Now
  • Quad 11 Original Harma KT66 Siemens EF86 Upgrade Kit PairQuad Amplifiers This full revalve kit is for Original and legendary Quad 11 power amplifier that was introduced in 1953 and remained in ...In stock£276.00Buy Now
  • Quad 11 Original Harma KT66 Mullard EF86 Upgrade Kit PairQuad Amplifiers This full revalve kit is for Original and legendary Quad 11 power amplifier that was introduced in 1953 and remained in ...In stock£328.00Buy Now
  • Quad 11 Original REC Relic KT66 Siemens EF86 Upgrade Kit Pair LTD EditionQuad Amplifiers The KT66 Relic is a premium high quality audio grade KT66 that is based on the famous GEC design. Now owners of the ...In stock£258.00
    £180.60
    Buy Now
  • Quad 11 Original REC Relic KT66 Mullard EF86 Upgrade Kit Pair LTD EditionQuad Amplifiers The KT66 Relic is a premium high quality audio grade KT66 that is based on the famous GEC design. Now owners of the ...In stock£310.00
    £217.00
    Buy Now
  • Quad AM1 Tuner Upgrade KitQuad Amplifiers Original Quad AM1 tuner that was introduced in 1954 and remained in production until 1960.This upgrade kit uses a set ...In stock£29.00Buy Now
  • Quad AM2 Tuner Upgrade KitQuad Amplifiers Original Quad AM2 tuner that was introduced in 1960 and remained in production until 1969. This upgrade kit uses a ...In stock£42.00Buy Now
  • Quad AM3 Tuner Upgrade KitQuad Amplifiers Original Quad AM3 tuner that was introduced in 1969 and remained in production until 1973. This upgrade kit uses a ...In stock£42.00Buy Now
  • Quad FM1 Tuner Upgrade KitQuad Amplifiers The Original Quad FM1 Radio tuner was introduced in 1955 and remained in production until 1967.This upgrade kit uses a ...In stock£73.00Buy Now
  • Quad FM2 Tuner Upgrade KitQuad Amplifiers Original and rare Quad FM2 valve Radio Tuner which was introduced in 1968 and remained in production until 1971.This ...In stock£78.50Buy Now
Total : 19 | Page 1 of 1
  • First | 
  •  Previous | 
  •  Next | 
  •  Last
All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by all EU countries.


NEWSLETTER SIGN UP

FOLLOW US
Facebook Twitter Follow us on Instagram