Just remember if you ever send it in to ARC, they will insist on stock caps or will NOT repair it otherwise.
For ARC fans, keeping it stock is a matter of faith.
If you really want to mod a tube preamp.. Go for a Counterpoint. Mods galore..
Elizabeth (Threads | Answers | This Thread)
If you appreciate an uncolored/transparent presentation; V-caps are the hot ticket(www.v-cap). auriCAPs are another excellent, less pricey, alternative(www.soniccraft). There are a number of oil impregnated caps out there, if you like a warmer/softer presentation. Some VERY good things to know/observe, when installing capacitors: (www.audience-av) BTW- those notes apply to any film type cap. Most manufacturers can tell you how to discern which is their outer-foil lead. ie: (www.v-cap) Have you tried a non-stock power cord, and HI-FI Tuning fuses, yet?
Rodman99999 (Threads | Answers | This Thread)
The caps that are suitable for your amp are the ones Audio Research installed during manufacture. I have heard these so called upgraded Audio Research amps and preamps and I can assure you it is not an upgrade. It's hard to beat the engineers at ARC.
Rrog (Answers | This Thread)
Thanks for the suggestions. I will keep this in mind and probably just leave things as it is.
Rapogee (Threads | Answers | This Thread)
If anything the output coupling caps will give you the most bang for the buck sonics wise. Dueland Alexandras are a good choice as they are paper in oil with a rich character.
I own two AR amps, an DR250 mk2 and Classic 60. Before you try caps try tubes. A nice pair of Telefunken or Mullard input tubes just may do the trick for you. Or if you use a tubed pramp the output tubes change will allow you to get a different flavor. Have fun trying.
Pipedream (Answers | This Thread)