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tetablanco
14
Oct 30, 2020
I upgraded the same preamp (same internal components though with a different brand name) with a pair of Burson V5i-D opamps (these fit inside the casing) and a pair of Vokshod 6J1P-EV military tubes and replaced the power supply with an iFiPower linear power supply with excellent results. While "audiophile purists" would frown in this, I like that its tone and bass controls give me the flexibility to compensate for poor recordings and a less-than-ideal listening area.
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BattousaiX26
0
Nov 10, 2020
tetablancoCan this be done with the fx audio tube 03? I want to upgrade my op amps too
tetablanco
14
Nov 10, 2020
BattousaiX26I believe they both use the same PCB. Open the case and check if the opamps are socketed in or soldered. If it uses a pair of NE5532 opamps, be sure to get compatible dual DIP-8 opamps such as the MUSES8920, LM49860, LM4562, etc. which are all good opamps. Next level opamps are the discrete Burson V5i-D and the Sparkos SS3602. Don't get the ones that are too tall or too wide.
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