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.

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  • Quad 707 / 909 / Elite QuadLink Upgrade
    If you use the Quadlink, we highly recommend you purchase this upgrade with the standard power amp upgrade above. QuadLink Upgrade Expect a clearer, cleaner and smoother sound with tighter bass. Replaces the input opamp with the finest IC opamp available Upgraded power supply component..
    £85.00
  • Quad 77 / 99 / Elite Preamp Upgrade - Stage 1
    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 decoupling capacitors Elna Cerafine decoupling capacitors Improved opamps (..
    £250.00
  • Quad 77 / 99 / Elite Preamp Upgrade - Stage 2
    Taking things even further, the Stage 3 adds four of our discrete low-noise voltage regulators for the main supplies. Again, this improves every aspect of the sound quality Stage 2 Upgrade Massively improved power supply capacitors for improved power supply ripple/noise filtering Improved..
    £450.00
  • Quad 99 Power Amplifier Upgrade - Stage 1
    The Quad 99 power amplifier pumnches well above its weight. The sound is clean, clear and dynamic. With our Stage 1 upgrade applied you get extra clarity, but this is combined with a smoother, more sumptuous mid-range and treble. Bass becomes more layered, with better texture and control. Quad..
    £199.00
  • Quad 99 Power Amplifier Upgrade - Stage 2
    The Quad 99 power amplifier punches well above its weight. The sound is clean, clear and dynamic. With our Stage 2 upgrade applied the sound becomes cleaner, sweeter and more realistic. The low-noise voltage regulation really brings large improvements to the frequency extremes. Quad 99 Po..
    £229.00
  • Quad Artera Stereo Upgrade - Stage 1
    Quad Artera amplifiers represent one of the best hifi bargains around. With their roots in the amazing 405, the circuit has been refined for improved sound-quality. With a large transformer and space for larger power smoothing capacitors it is a robust sounding candidate for upgrade. With our ..
    £335.00