Quad Upgrades

These classic amplifiers are capable of excellent sound. With our upgrades fitted you will get far more detail throughout the frequency range, greater transparency and a toe-tapping performance with fantastic PRaT. Dynamics are improved dramatically too, and this allied to a much more open and controlled delivery really lets you hear into the recordings.

Sort By:
Show:
Display: List Grid
  • Quad 77 / 99 CD Player Upgrade - Stage 1
    The Quad 77 & 99 cd players produce good sound in standard form. With our upgrades fitted you get a smoother, more detailed & dynamic sound. Stage 1 Upgrade Massively improved power supply capacitors for improved power supply ripple/noise filtering Improved power supply decoupl..
    £275.00
  • Quad 77 / 99 CD Player Upgrade - Stage 3
    Taking things even further, the Stage 3 adds three of our discrete low-noise voltage regulators for the main supplies. Again, this improves every aspect of the sound quality. Stage 3 Upgrade Massively improved power supply capacitors for improved power supply ripple/noise filtering Improv..
    £775.00
  • Quad Elite 77 / 99 CD Upgrade - Stage 2
    The Quad 77 & 99 cd players produce good sound in standard form. With our upgrades fitted you get a smoother, more detailed & dynamic sound. Stage 2 Upgrade Massively improved power supply capacitors for improved power supply ripple/noise filtering Improved power supply decoupl..
    £575.00
  • Quad Elite CDP / CDS Upgrade - Stage 1
    The Quad Elite CDP & CDS cd players produce good sound in standard form. With our upgrades fitted you get a smoother, more detailed & dynamic sound. Stage 1 Upgrade Massively improved power supply capacitors for improved power supply ripple/noise filtering Improved power supply..
    £275.00
  • Quad 303 Power Amplifier Upgrade - Stage 2
    Quad 303 Power Amplifier Upgrade - Stage 2 Quad 303 amplifiers are incredibly robust. The design is stable into any load and with our upgrades fitted is capable of stunning sound quality. The Quad 303 delivers good detail and great rhythmic drive combined with an almost valve-like fluid qualit..
    £230.00
  • Quad 306 Power Amplifier Upgrade - Stage 1
    A much under estimated little amp, the Quad 306 is a great performer even in standard form; punchy and more detailed than a standard 405 to these ears. With an upgrade applied however, it really is a great sounding amp. As always, replacing the ageing original electrolytic capacitors improves ..
    £165.00
    Based on 2 reviews.