BRZHIFI VOL-65E 6J5 Vacuum Tube Preamplifier BT5.0 Audiophile HIFI Headphone Preamp

Yes, it's very easy! You just need to unscrew a few screws to quickly replace the vacuum tubes. Plus, the tubes are safely enclosed to prevent accidental burns, and there are ventilation holes to prevent overheating. The sound quality is excellent.

Absolutely! It works perfectly with a 1969 Class-A amp. If paired with a Brzhifi linear power supply, the audio performance is even better, and Bluetooth connectivity is super convenient.

It supports a wide range of vacuum tubes, including 6J1, 6J3, 6J5, 6K4, and more.

The Brzhifi preamp uses two 5532 op-amps. With the new upgraded plug-and-play design, you can easily DIY and swap out the op-amps.

Yes, it does! The adjustable bass and treble significantly widen the sound range. The difference is particularly noticeable when connecting to powered speakers, especially with improved bass performance.

There is a faint background noise at startup, but it’s barely noticeable and lasts only a moment. For zero background noise, we recommend pairing it with a Brzhifi linear power supply.