There are two frequent problems with hi-fi amplifiers. Class A, the traditional audiophile’s choice, uses a single power supply constantly running at full capacity, even when there’s no signal coming through. Great for reproducing those subtle details at low levels however struggles to provide extreme power when needed. Class A/B, the most common amp class, switches between the two internal amplifiers, one for each half of the waveform. Far more efficient but often a recipe for crossover distortion, since those low-level details we crave can get lost within any mis-match between the two switching over. Class G is essentially a hybrid amplifier, utilising Class A specifically for low-level signals, but when required switching in an additional power supply to power those larger sections of the waveform.
Class G amplification for impeccable sound and efficiency
80W of power per channel
5 analogue inputs including phono
3 digital inputs
32-bit DAC,Sabre ESS9038K2M
Full I/P control
Total harmonic distortion + noise = 0.003%
Continuous power output (20Hz—20kHz at 0.5% THD), per channel
Both channels, 8Ω, 20Hz—20kHz 90W
Single channel, 4Ω, at 1kHz 180W
Harmonic distortion, 80% power, 8Ω at 1kHz 0.002%
Analogue Inputs
Phono (MM) cartridge:
Input sensitivity at 1kHz 5mV
Input impedance 47kΩ + 100pF
Frequency response (ref. RIAA curve) 20Hz – 20kHz ± 1dB
Signal/Noise ratio (A-wtd) 50W, ref. 5mV input 80dB
Overload margin, ref. 5mV at 1kHz 21dB
Line Inputs:
Nominal sensitivity 1V
Input impedance 10kΩ
Maximum input 6Vrms
Frequency response 20Hz – 20kHz ± 0.2dB
Signal/Noise ratio (A-wtd) 50W, ref. 1V input 106dB