2. amps-preamps
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Looking for brighter tubes

Attention tube heads: I'm looking for brighter (more treble...not higher amounts of glow and chrome) tubes, if they exist. My amp (Jolida JD502P) has a well regarded bunch of Russian Tung Sol 6550s and 12AX7/12AT7s but I'm wondering if there's anything out there that imparts more sizzle in this amp. I do like the amp as it is...but hey..."rolling rolling rolling, keep them tubeys rolling...
wolf_garcia

Showing 2 responses by johnsonwu

johnsonwu
469 posts
 
the weak link in this amp are the coupling caps. don't waste money on tubes till you fix the caps followed by a power supply upgrade.
johnsonwu
469 posts
 
I went as far as completely rebuilding one.
Only the trannies are left original.
Not sure if Jolida Maryland simply changed Kung Pao caps to Mushu caps.
But mine went as far as V-caps and Mundorf SGO.
Hexfred Diodes, Low ESR Panasonic or Nichicon Filter caps,
replacing gain and driver stage filter caps to Solen or VALAB, triode mode, and reconfiguring gain stage all contribute to a much more musical and open sound.
Much more effective then burning money on tubes (MANY so called Telefunken and Siemens tubes out there are fake)
Tung Sols... this brand is long gone. All you are getting is New Sensor Reflecktor Sovteks.
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