Tryst 2a3 Stereo Amplifier $2495
The Tryst aims to deliver a stereo 2A3 power amplifier in a compact package with a compact price that doesn't compromise on performance. Many 2A3 amplifiers suffer in the driver department due to the unusually low B+ voltage generally used with the 2A3 tube, but we overcome this limitation by using a constant current source loaded high mu triode (6211). This avoids substantial coloration from the driver while also providing good isolation from the power supply. The 2A3 uses AC heating with a fine hum pot adjustment to optimize the noise floor when tubes are exchanged. Long life capacitors are provided for the power supply, and premium coupling caps are included.
Power:
3W 3% THD 1kHz
4.88W 5% THD 1kHz
5.7W 10% THD 1kHz
Peak Power: 6.66W
1.9W 5% THD 50Hz
3.92W 10% THD 50Hz
Output Impedance: 3.3 Ohms on the 8 Ohm Tap
Bandwidth: -3dB at 15Hz and 57kHz
Gain: 13dB 8 Ohm Tap
Noise: Typical noise floor with Sovtek 2A3 and hum pot adjusted by scope = 900uV