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For many years we have specialised in the custom upgrading of hifi equipment. The knowledge and experience gained over the years allows us to produce the finest sound-per-pound upgrades & products for your HiFi.Please Note: This is an upgrade module for DIY Fitment. If you’d like us to fit it for you please get in touch.
The vintage Quad 33 is capable of incredible transparency. It is a fully discrete design, containing no opamps. Whilst this can bring benefits in transparency and detail, it also means it is incredibly sensitive to power supply noise. To combat this issue (and due to a great many requests from customers) we have developed a custom power supply board (PSU). This new Quad 33 PSU uses an on-board, low-noise toroidal transformer, high quality capacitors and optional discrete, low-noise voltage regulation.Low-noise toroidal transformerLow ESR Smoothing Capacitors7812 On-board Voltage Regulator – Upgradable to Clarity HC Low-Noise Discrete Regulator
Elna Cerafine Post Regulation CapacitorQuality PPS Bypass CapacitorsGround Plane ShieldLed indication88mm x 64mmReady Assembled and TestedIncludes Screws, Standoffs and Spacers
CUSTOMER TESTIMONIALSI can recommend him whole heartedly and feel sure that despite the cost involved even vintage gear such as the preamp I described can sound absolutely fantastic and represents great value for money. For many cash strapped audiophiles( such as me!) I think this is the way to go! Musical Fidelity The Preamp Stage 2 Upgrade – Bob Leslie
Hi Lee,
Just to let you know that the repairs to the Marantz CD94 are working fine and the Quintessence +5v Regulator upgrade has made an amazing difference. There is much more detail and it is far more open now. It seems to have brought out the best in the various previous “upgrades” you have done for me 🙂
First chance I get I will let you have my Amplifier to go through as you suggested…!
All the very best
Steve
Audiolab 8000s Stage 2 UpgradeIt has transformed my amp. The separation has markedly increased. Very pleased
Audiolab 8000a Upgrade – Stage 2 + Stage 2 Phono Stage Upgrade
Hi Lee, I must say, the amplifier sounds really lush, the knobs work without distortion, the sound is to die for! The bass has improved as well as the mids and highs. My system now plays music! Wow! I can’t wait to her what it sounds like after I get to the 300 hour mark!Lee, I can’t thank you enough! Thank you very much for this! With Kind regards, James
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Category: Sound and Vision:Home Audio and HiFi Separates:Amplifiers and Pre-Amps
Location: Grimsby