Cereal Killer
432
I agree Class D cannot compete within an apples for apples THD+N test.
Example, my A/B amp:
Distortion factor (THD+N, 10 watts @ 4 ohms): 0.0062 %
IM distortions SMPTE (5 watts @ 4 ohms): 0.0075 %
IM distortions CCIF (5 watts @ 4 ohms): 0.0008%
Upper limit frequency (-3dB / 10 W @ 4 ohms): > 185 kHz
Damping factor: 1000 at 100 Hz
Bandwidth: 1 – 500,000 Hz
THD+N:<-90dB
SNR:> 103dB @ 1kHz
ACI-600 Class D amp:
THD+N: <0.01% 1kHz A-Weighted
SNR: >70dB A-Weighted
THD+N: 0.003%, 1kHz
Dynamic Range: 110dB, A-weighted 20Hz-20kHz
Frequency Response: -3 dB 0.5Hz-50kHz, all loads
Damping factor: >500
Example, my A/B amp:
Distortion factor (THD+N, 10 watts @ 4 ohms): 0.0062 %
IM distortions SMPTE (5 watts @ 4 ohms): 0.0075 %
IM distortions CCIF (5 watts @ 4 ohms): 0.0008%
Upper limit frequency (-3dB / 10 W @ 4 ohms): > 185 kHz
Damping factor: 1000 at 100 Hz
Bandwidth: 1 – 500,000 Hz
THD+N:<-90dB
SNR:> 103dB @ 1kHz
ACI-600 Class D amp:
THD+N: <0.01% 1kHz A-Weighted
SNR: >70dB A-Weighted
THD+N: 0.003%, 1kHz
Dynamic Range: 110dB, A-weighted 20Hz-20kHz
Frequency Response: -3 dB 0.5Hz-50kHz, all loads
Damping factor: >500