Question About Capacitor Upgrade in Tube Amp
Hi,
I am preparing to do a coupling capacitor upgrade on a recently purchased tube integrated amp. The two 0.22uF on the preamp tubes are fairly straight forward. But I noticed another similar model 0.33uF cap on the large filter capacitor for the B+ supply that is installed across the hot lead to ground.
Does this cap on the B+ just block high frequency noise from the power supply or does it have any effect on the amp tone? Is there any reason to "upgrade" this cap?
I know it may be hard to tell exactly what is going on without a schematic.
Also any recommendations on a good cap to use in the upgrade of the coupling caps? I was looking at Mundorf SilverGoldOil for the quality at not too crazy a price. The amp already sounds good but lacks a little clarity that I think a coupling cap swap will help with. It is SET 300B amp.
Thank you!
Vcap CuTf are great for 300B SET - clean, clear, transparent, fast, soundstage not harsh at all. Duelund Custom are excellent too - great tone harmonics, soundstage, a little bit slow and full bass. Bu I think these two options are too expansive for such not expansive amplifier. Does anyone compared directly: 1. Vcap CuTf vs Mundorf Supreme Silver Gold Oil? 2. Duelund Custom Cu vs Cu-Sn versions?
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Hi @calieng , You did right thing to chose relatively affordable Mundorf capacitors for your Willsenton R300 amplifier. Duelunds and V-Cap CuTf are very good but they are overkill for such not expansive amplifier. With all respect coupling and power supply bypass capacitors shouldn't be the most expansive part in any amplifier. Regards, Alex. |
