Stan Warren mod of 9000es and 333es


Yesterday, I spoke with Stan Warren, he finished upgrade to my 9000es and send it to me. In about a month, I will post my listening experience, now since many people were interested in this (or similar 333es) mod I briefly report that Stan told me: Most of parts ate surface mounted and therefore due to their small size substitution is difficult. He installed Black Gate capacitors in power supply as well as in signal path, exchanged op-amp from poorly sounding to nuch better sounding (surpisingly not more expensive, I think Sony people simply did not perform listening tests if specs are OK), changed wiring, reduce output impedance to about 100 ohms and few other things. His sonic expression was that it became spacier and airy (exactly what doctor order). Of course, after break-in (3-4 weeks, usually) sound will be even better. Price is $250 plus shipping. He can be reached at 541/344 - 3696 PST time zone. Simon
simontju

Showing 1 response by mikeg

Simon,

Was wondering what wire did Stan use as a replacement and which wires (all internal, power supply, analog output). I think the rcas are directly soldered to the analog board like in the 777ES. Was also wondering what Stan did to reduce the output impedance. Can you ask Stan what op amps he used? Regards, Mike