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- Normaler Preis
- $163.99 USD
- Verkaufspreis
- $163.99 USD
- Normaler Preis
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$163.99 USD - Grundpreis
- / pro
















The High Quality Operational Amplifier Chip Burson V7, SparkoS Labs SS3602, MUSES02 and OPA2134PA can replace the ZA3, BT20A PRO, and V3's operational amplifiers and can create different sound quality, providing you with a versatile Hi-Fi listening experience.
Bass presence and definition greatly improved on my BT20A Pro, I had to step back on the bass level compensation. Also dynamics got a lot better, and it is surprising on the not-exactly top level speaker I own at the moment. In spite the investment is higher than the amplifier price it worths the price.
Absolutely incredible sound improvement for the Fosi V3, which is out-of-the-box already very good. This small and cheap device can compete with much expensiver amps.
The MUSES02 op-amp is a high-quality component that improves sound clarity and reduces noise in audio equipment, delivering a cleaner and more accurate listening experience. It's a shame the packaging was poorly done. TQ
I am di-hard fan of Fosi audio products…. I have collection of Fosi audio products V3, ZA3, ZD3, ore amps etc….. after replacing SS3602 opamps there is Amazing improvement in Fosi B3 and ZF3 sound signature with SS3602….i love it….
I ordered the OPA2134PA to replace the left and right channel op amps in my Fosi ZA3. I was not expecting much but figured it was an interesting experiment to try. I have to say I do prefer the OPA2134PA over the stock op amps. The only way I can describe it is less fatiguing and more natural. It seems that my ears prefer the FET input design on the OPA2134PA over the stock Bipolar NE5532P.