MOSFET CFB DCAMP with Distortion Cancel

(Gain 12dB, Load 4ohm, Output Power 6W)

RightMark Audio Analyzer test

Testing chain: External loopback (Line-out - Power Amp - ATT - Line-in)
Sampling mode: 32-bit, 44 kHz

Summary

General performance: Excellent

Frequency response

Frequency range	Response
From 20 Hz to 20 kHz, dB	-0.25, +0.02
From 40 Hz to 15 kHz, dB	-0.08, +0.02

Noise level

Parameter	Left	Right
RMS power, dB:	-98.4	-97.3
RMS power (A-weighted), dB:	-102.2	-99.8
Peak level, dB FS:	-82.3	-81.4
DC offset, %:	0.00	0.00

Dynamic range

Parameter	Left	Right
Dynamic range, dB:	+100.2	+98.7
Dynamic range (A-weighted), dB:	+102.2	+99.9
DC offset, %:	0.00	0.00

THD + Noise (at -3 dB FS)

Parameter	Left	Right
THD, %:	0.0049	0.0058
THD + Noise, %:	0.0059	0.0070
THD + Noise (A-weighted), %:	0.0071	0.0084

Intermodulation distortion

Parameter	Left	Right
IMD + Noise, %:	0.0094	0.0117
IMD + Noise (A-weighted), %:	0.0091	0.0116

Stereo crosstalk

Parameter	L <- R	L -> R
Crosstalk at 100 Hz, dB:	-100	-100
Crosstalk at 1 kHz, dB:	-93	-89
Crosstalk at 10 kHz, dB:	-90	-86

IMD (swept tones)

Parameter	Left	Right
IMD + Noise at 5 kHz, %:	0.0250	0.0319
IMD + Noise at 10 kHz, %:	0.0380	0.0500
IMD + Noise at 15 kHz, %:	0.0079	0.0069