Verkäufer:aquatastic✉️(292)100%,
Artikelstandort:Sheffield, GB,
Versand nach: GB und viele andere Länder,
Artikelnummer:282587137401Quad 909 Redhill audio . Up for sale is my quad 909 which was upgraded by Redhill audio last year. Selling as due to a move we needed to change our system. Very reluctant sale. Redhill are very well respected and all the cheap Chinese capacitors have been replaced as well as the quadlink disconnected from the circuit (but still in the amp if you want to reconnect it). 2 small marks on front facia shown in picture.
The link to the work done is here :
http://redhillaudio.co.uk/hifi-upgrades/quad-upgrades/quad-power-amplifier-upgrades/quad-606-mk2-707-909-elite-upgrade-stage-2
The work done was:
1. Mundorf MLytic AG Low-ESR/ESL power supply smoothing capacitors
2. Elna Cerafine audio-grade electrolytic capacitors
3. Additional High Quality PPS Film Capacitor
4. Additional Elna Cerafine decoupling capacitors
5. Improved signal-path wire using Red Hill Audio 1TP SPS for better sound quality and noise rejection
6. 6 x Mini Shunt Voltage Regulators
7. Gain reduction - 1.0v input for maximum output
This has increased the performance at both extremes without sacrificing the fantastic midrange the amp is famous for. All work is easily reversed if that is what you want, however it does lift an already fantastic amp into another level.
Any questions just ask.