Leijine Headphone Amplifier A496plus type1
RightMark Audio Analyzer test result

Power Source:DC24volt AC Adapter     Mian Opeamp:NJR/MUSE8820    DC servo Opeamp:TI/OPA2134
Measuring Device : Asus Xonar Essence ST

Testing chain: External loopback (line-out - line-in)
Sampling mode: 24-bit, 48 kHz




Summary

Frequency response (from 40 Hz to 15 kHz), dB: +0.02, -0.13Excellent
Noise level, dB (A): -115.5Excellent
Dynamic range, dB (A): 113.2Excellent
THD, %: 0.0010Excellent
IMD + Noise, %: 0.0013Excellent
Stereo crosstalk, dB: -92.6Excellent
IMD at 10 kHz, %: 0.0015Excellent

General performance: Very good




Frequency response

Spectrum graph


Frequency range Response
From 20 Hz to 20 kHz, dB-0.23, +0.02
From 40 Hz to 15 kHz, dB-0.13, +0.02




Noise level

Spectrum graph


Parameter Left Right
RMS power, dB:-114.0-112.8
RMS power (A-weighted), dB:-115.5-113.9
Peak level, dB FS:-92.3-91.1
DC offset, %:-0.00-0.00




Dynamic range

Spectrum graph


Parameter Left Right
Dynamic range, dB:+112.0+110.7
Dynamic range (A-weighted), dB:+114.7+113.2
DC offset, %:-0.00-0.00




THD + Noise (at -3 dB FS)

Spectrum graph


Parameter Left Right
THD, %:0.00100.0012
THD + Noise, %:0.00120.0013
THD + Noise (A-weighted), %:0.00140.0016




Intermodulation distortion

Spectrum graph


Parameter Left Right
IMD + Noise, %:0.00130.0014
IMD + Noise (A-weighted), %:0.00110.0013




Stereo crosstalk

Spectrum graph


Parameter L <- R L -> R
Crosstalk at 100 Hz, dB:-91 -91
Crosstalk at 1 kHz, dB: -91-92
Crosstalk at 10 kHz, dB:-91 -90




IMD (swept tones)

Spectrum graph


Parameter Left Right
IMD + Noise at 5 kHz, %:0.0015 0.0015
IMD + Noise at 10 kHz, %:0.0015 0.0015
IMD + Noise at 15 kHz, %:0.0015 0.0015

This report was generated by RightMark Audio Analyzer 5.5