🎶 AIYIMA Audio 6J1 Tube Preamplifier Bluetooth 5.0 | Treble & Bass Adjustment | DC12V HiFi Audio Preamp NE5532P Chips for Home Audio Amplifier System (Black + BT 5.0) Review

First, don't use the hoses that come with the kit. Get a matched pair of GE 5654W bulbs, which you probably saw in the 'Customers who bought this also looked at' section. If not, then find and buy. The Chinese tubes it comes with don't really do anything you need a tube for, namely nice 2nd and 4th order harmonics that warm up the sound and widen the soundstage. Second, the op amps used are great, but it could benefit from a pair of $5 MUSES 8920 op amps. Ebay is the place for that. You'll need

First of all it sounds great from an unscientific listening perspective. I haven't compared it to other Hi-Fi to see if it has a little more or less distortion etc. Bottom line, it sounds good. But that's not why this thing is amazing. This is great because it's the only line level Bluetooth device I've found that actually delivers full volume at line level. Your amplifier is designed for this. Climbing a little higher is not bad. Many hi-fi preamps have a nominal voltage of 2.1 Vrms. Based on…

A very pleasant preamplifier with good-sounding, clear highs and rich mids. I really like the volume control's soft-latch style, which offers a good tactile feel along with smooth line control of the audio output. There's also enough bass and treble controls to tailor the sound to your room's unique acoustics. All controls have a pleasant positive body feel. I initially had an issue with the included 6J1 vacuum tubes arriving DOA. Luckily the seller was very responsive and easy to deal with and

An excellent tube buffer/preamp for anyone who has long wanted to delve into the tube world. I have 3 of these now, each on different systems with different mods. I will buy a fourth and a fifth. First, GE JAN5654W bulbs are generally recommended for a reason. They're inexpensive and very easy to find, but they offer a significant improvement in the overall sonic dynamics, clarity, soundstage, natural warmth, and detail you'd expect from vacuum tubes. The Soviet military 6Zh1-PV are a bit more…