Details
This results in very low output impedance, ensuring that constant drive voltage is available also for low-impedance loads. Superior performance is evident from the linear power progression of 45 watts into 8 ohms, 90 watts into 4 ohms, and 180 watts into 2 ohms. The amplifier is even capable of driving ultra-low 1-ohm impedances with an amazing 360 watts (music signals only). The input stage circuitry is configured as an instrumentation amplifier. This approach makes it possible to achieve fully balanced signal paths, extending from the signal input all the way to the final power amp stage. Using the A-47 in bridged mode creates a mono amplifier with even more impressive power output capability, rated for 180 watts into 8 ohms, 360 watts into 4 ohms, and 720 watts into 2 ohms (music signals only).
- Pure Class A operation delivers quality power: 30 watts x 2 into 8 ohms
- Power MOSFET output stage features 3-parallel push-pull configuration
- Instrumentation amplifier principle used in input stage
- Amplification stage implements further evolved MCS+ topology
- Current feedback principle combines stable operation with outstanding sound quality
- Bridged connection mode allows upgrading to monophonic amplifier
- Strong power supply with massive high-efficiency transformer and large filtering capacitors
- 4-stage gain control