jackweston

Responses from jackweston

ARC Ref 110 with KT 150 tubes
I am running an ARC VS115 with closely matched cryo treated KT150 tubes . The eight main power supply capacitors were recently replaced with Mundorf HV Mlytics ( 680uf 450V) with the original Relcap 2 uf and /. 1 uf bypass caps retained. Sounds am... 
Audio Research VT100 Mk1, Mk3; VS115
I own an ARC VS115 amp. The original  yellow Rel-cap coupling caps ( two for each channel) were replaced with Stealth gold 2.0 uf 450 V caps. These 2.0 uf Stealth caps are drop in replacements on the circuit board replacing the stock  2.0 uf 450... 
Prima Luna EVO series amps/preamps now available...
I recently bought an  EVO 400  PL  preamp  which is connected to an Audio research VS-115 amp with  Silnote Morpheus Reference II silver XLR's . An amazing combo.  Excellent bass, midrange and top end extension. Very quiet preamp.  
InfiniCaps or V cap upgrades for ARC LS7
The ARC LS-7 is an ideal line stage to upgrade. I upgraded mine with the help of two long time Audio Research employees / friends in their spare time around 10 years ago. One was Ward Fiebiger an ARC engineer who has since passed away. The other... 
Weird problem. Bad tube or something else?
Buy yourself a set of  4  RCA brand 1960's vintage  7308 Siemens Halske triodes. They sound way better in this linestage that  7308 amperex tubes do.  I have tested them all including  NOS burned in  1960's  Amperex  6922's.  Make sure they are fi...