SparkoS Labs SS3602, Burson V7, MUSES02, OPA2134PA, High Quality Operational Amplifier Chip for BT20A PRO and V3 (1 Pair 2PCS)
- Regular price
- $163.99 USD
- Sale price
- $163.99 USD
- Regular price
-
$163.60 USD
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. 
A little bit pricey but the results were worth the investment. The stock amps were great on their own but I love the improvement in sound quality. Fosi Audio should offer the BT20A PRO with a choice of op-amps, for additional cost obviously.
Using the Fosi V3 mono blocks and Polk atrium speakers with modified 8 inch subs on porch. These op amps make the music much easier to eq and just sound more natural to me than the ones that come with the amps. I use them in my subs also to add bass extension and better fidelity!
I know this is one of those polarizing subjects, but as a 30+ year audio engineer, producer, technical director and mastering engineer, I can tell you that I can hear a difference. And with the Sparkos especially, it’s good. I have a pair of Burson V7C inbound so I’ll write that one when I drop them in. I have replaced the SE input op-amps in all three of my V3 Monos and my ZD3. All at different times and used with various rigs I have on hand and the difference with the V3s is not as subtle as with the ZD3. Both exhibit better dynamics, more pronounced separation and improved top end clarity and holography. Fosi has really created something special in their line up of DAC, Apms and Preamp with dip8 sockets. People can get into a great sounding high quality HiFi device at an unbeatable value, and then upgrade that device as they can afford. Fosi has the HoFi establishment on notice and it’s not difficult to hear why. I’m a huge fan.
after seeing many positive reviews on these op amps, i decided to buy them even though the cost is very high. i was really impressed by the sound quality which has improved a lot. more brilliance, more depth of sound and even the bass has improved a lot. i can only recommend buying these op amps because they really
Honestly they should just put the MUSE02 in from the word go. The units are already a value and they become unbelievable with the op-amp swap. I have bought two sets right from FOSI. 100% original and best deal out there. DO IT!