rolls Tube PREAMPLIFIER, Black PA555

The Bellari PA555 is a line level preamp with a volume knob and uses a 12AX7 tube. The unit has four inputs, one of which is located on the front, and is available only in black. The included adapter is 100V to 240V compatible. It is passive and does not require power for input switching, but the output signal requires the unit to be powered on. The preamp does not include a phono preamp stage, and users would need to connect a separate phono preamp. The device does not support wired headphones, and it has only one output. Users can connect a subwoofer through their amplifier's outputs. The reviews indicate mixed feedback, with some customers experiencing defects and surges when powering on and off. Some customers are also unsatisfied with the quality of the volume knob and the noise that occurs beyond the 2:45 clock time position. Additionally, some users report malfunctions that lead to humming and buzzing sounds, especially on one channel. However, other customers appreciate the device's warm tube sound, quality materials, and craftsmanship. Bullets highlighting the Pros and Cons of Bellari PA555 are as follows: