The ALLNIC A-2000 MK3 is a high-performance vacuum tube power amplifier designed to deliver substantial output power while preserving the musical characteristics associated with premium valve amplification. Utilizing a push-pull Class AB design, the amplifier employs KT170 beam tetrode output tubes to provide up to 120 watts per channel in pentode mode or 60 watts per channel in triode mode, offering flexibility for a wide range of loudspeaker systems and listening preferences.
Building on previous generations, the MK3 introduces the larger KT170 output tubes and updated driver circuitry based around 6S4 triodes, resulting in improved stability, drive capability, and a more natural sonic presentation. ALLNIC’s signature Permalloy-core output transformers remain central to the design, helping to deliver wide-frequency performance and excellent control.
The amplifier also incorporates several user-friendly features, including output tube current meters, bias adjustment controls, selectable output impedance, switchable pentode/triode operation, and a slow-start circuit for reliable tube operation. Balanced XLR and unbalanced RCA inputs allow easy integration into a wide variety of high-end audio systems.
| Output Power | 120 W per channel in pentode mode; 60 W per channel in triode mode |
|---|---|
| Amplifier Class | Class AB push-pull |
| Output Tubes | KT170 × 2 per channel |
| Input Stage Tube | 5654 pentode × 1 per channel (triple-connected) |
| Driver/Phase Inverter Tubes | 6S4 triodes × 2 per channel |
| Voltage Gain | 26 dB |
| Input Impedance | 100 kΩ |
| Damping Factor | 8 |
| Inputs | 1 × RCA stereo pair, 1 × XLR stereo pair |
| Output Impedance Selection | 4 Ω or 8 Ω selectable |
| Output Transformer Type | ALLNIC signature Permalloy-core output transformers |
| Operation Modes | Switchable pentode/triode |
