🔊 Powerful Mini Bluetooth 5.0 Tube Headphone Amplifier USB DAC - Enhancing Audio Quality with Stereo Audio Preamp APTX-LL Review

Works great. Included with the device was a Soviet OTK 6n3p-ev NOS lamp (that's good). This is a great way to add Bluetooth connectivity to any system.

Everything was ready for installation, when I unplugged the power cord it didn't reach my outlets. The cable is only 34 inches (thumbs down).

Bluetooth works fine xs but when used as a headphone amp there is a strange hiss. And the volume doesn't work when you use it as a preamp. Get something different.

Great for adding that tube warmth and extra power to push my pair of gear. The only thing I would suggest is a clamp to hold the tube in place, it's amazing how easy it is to pull it out of its socket.

I was pleasantly surprised by this unit. I just bought it to see how it sounds and for $60 it's not bad at all. I occasionally listen to headphones through it, but mostly I use it to connect Bluetooth to my bookshelf speakers. Works great for this purpose.

Everything about this device is very good except for one thing. The volume knob only controls the headphone jack, not the RCA jacks. I keep it but it was a disappointment. For the price it is fabulous and meets all expectations. I REALLY wanted to control my output to my amp with a volume knob instead of digging around in my computer to adjust the volume. Although the volume control works well with the headphone jack. I wish it had this highly desirable feature. Headphone output to my power…

Update: I still love this amp. I've had it since January and it hasn't let me down yet. That doesn't mean I didn't have problems with it. YOU NEED TO BUY NEW CABLES FOR THIS THING! I had problems with unplugging the USB cable, replaced it with a good quality USB cable and fixed it. The DAC was failing and I had to turn it off, close everything that was using sound on my PC, and then turn it back on every time I turned off the desk lamp :/ Replacing the PSU completely fixed this as well. With…