From FX Audio, the Tube-P1 is a versatile, inexpensive amplifier with a compact footprint. It has nearly all your amplification needs covered: along with working as a powerful speaker amp, it functions as a headphone amp and a phono preamp. The front panel features an on/off button, a headphone jack, and a large volume knob. Finally, the 6J1 and JP1 tubes can easily be swapped out if you’d like to try a different sound signature.