A mono amplifier is ideal for improving the overall performance of a Hi-Fi system. This ensures that interactions between the respective power supply circuits and the signal paths of the left channel and the right channel are prevented.

Categories: ,


The high-performance power supply with the triple output stage, equipped with the “High-Level-Current” transistors ( NJW0281G – NJW0302G ) from the much acclaimed MAA-1000, allows the X-A220 mono output stage to deliver a power of 220 watts RMS to 8 ohms.

The X- A220 offers a power of 220 W per channel in Class AB. By means of a switch on the rear side it is possible to request the first W in Class A. The first W in Class A can be requested by a switch on the rear side. Beyond this limit, the amplifier automatically switches to Class AB and back to Class A if it falls below this limit.

Additional information

Weight 21 kg
Dimensions 20 × 43 × 45 cm

Technical data

Power 8 Ω: 220 W

Power 4 Ω: 350 W

Frequency response: 10 Hz – 80 kHz

Distortion: ≤ 0.08%

Signal-to-noise ratio : ≥ 100DB

Channel separation: ≥ 110 dB

Input impedance: Unbalanced 32KΩ ,

Input impedance: Balanced 38KΩ

Nominal input voltage: 1.4 V

Standby power consumption : 0.45 W

Gain: 30ddB ± 1 dB

Transformer power : 700W