iFP890-StereoMic-L45

test by John Beale  July 11 2006


Testing chain: Echo Audio Mia (+14 dBV) -> 40 dB attenuator -> iRiver iFP890
44kHz, 320 kbps stereo Mic input level 45
pk.input = -26 dBV = 50 mV rms


Summary

Frequency response (from 40 Hz to 15 kHz), dB: +0.16, -0.96 Average
Noise level, dB (A): -79.9 Average
Dynamic range, dB (A): 79.4 Average
THD, %: 0.024 Good
IMD + Noise, %: 0.207 Average
Stereo crosstalk, dB: -29.3 Very poor
IMD at 10 kHz, %: 45.438 Very poor

General performance: Average


Frequency response

Spectrum graph


Frequency range Response
From 20 Hz to 20 kHz, dB -84.22, +0.16
From 40 Hz to 15 kHz, dB -0.96, +0.16


Noise level

Spectrum graph


Parameter Left Right
RMS power, dB: -78.2 -78.3
RMS power (A-weighted), dB: -79.4 -79.9
Peak level, dB FS: -61.2 -61.7
DC offset, %: -0.00 -0.00


Dynamic range

Spectrum graph


Parameter Left Right
Dynamic range, dB: +78.6 +78.5
Dynamic range (A-weighted), dB: +79.4 +79.6
DC offset, %: -0.00 -0.00


THD + Noise (at -3 dB FS)

Spectrum graph


Parameter Left Right
THD, %: 0.0243 0.0256
THD + Noise, %: 0.1505 0.1455
THD + Noise (A-weighted), %: 0.1618 0.1566



Intermodulation distortion

Spectrum graph


Parameter Left Right
IMD + Noise, %: 0.2102 0.2073
IMD + Noise (A-weighted), %: 0.1295 0.1297


Stereo crosstalk

Spectrum graph


Parameter L <- R L -> R
Crosstalk at 100 Hz, dB: -6 -6
Crosstalk at 1 kHz, dB: -28 -28
Crosstalk at 10 kHz, dB: -48 -49

IMD (swept tones)

Spectrum graph


Parameter Left Right
IMD + Noise at 5 kHz, %: 0.0600 0.0581
IMD + Noise at 10 kHz, %: 0.0463 0.0468
IMD + Noise at 15 kHz, %: 136.2082 145.0574


This report was generated by RightMark Audio Analyzer 5.5 on July 11 2006