Customized RightMark Audio Analyzer test report

TPA3118D2 vs EMU0204

TPA3118D2

Testing device EMU0204
Sampling mode 24-bit, 48 kHz
Testing chain Left (white): TPA3118D2, BTL, left channel,
Gain=26dB, Power=12V, Load=4.1ohm,
Output level=1Vrms (0.25W), Through my FilterBox
Right (green) : EMU0204, External loopback (line-out - line-in)


Frequency response

Spectrum graph

 
Left
Right
From 20 Hz to 20 kHz, dB
-2.73, +0.20
+0.08, +0.19


Noise level

Spectrum graph

 
Left
Right
RMS power, dB
-85.5
-96.6
RMS power (A-weighted), dB
-87.3
-112.8
Peak level, dB FS
-73.0
-81.6
DC offset, %
0.0
0.0


Dynamic range

Spectrum graph

 
Left
Right
Dynamic range, dB
+85.7
+110.7
Dynamic range (A-weighted), dB
+87.4
+112.7
DC offset, %
+0.00
-0.00


THD + Noise (at -3 dB FS)

Spectrum graph

 
Left
Right
THD, %
+0.0627
+0.0009
THD + Noise, %
+0.0644
+0.0012


Intermodulation distortion

Spectrum graph

 
Left
Right
IMD + Noise, %
+0.0685
+0.0014


Measurements with REW

Frequency Response

TP3118D2, Power=12V, Gain=26dB, Load=4 or 8ohm

thd 4ohm

THD comparison vs power

thd 4ohm

Same graph with dB scale, easier to read for me.

thd 4ohm

Note1: THD is mostly H3.
Note2: max output before clipping when powered at 12Vdc = 7 Vrms (10 Vpeak).



THD comparison vs gain

thd 4ohm

by alka, 10th march 2017