Measurement of characteristics. TDA1524 tone block testing
| Testing device | Tone control TDA1524 |
| Sampling mode | 24-bit, 48 kHz |
| Interface | E-MU1616m |
| Testing chain | E-MU1616m>Tone control TDA1524>E-MU1616m |
| Supply voltage AC | 18V |
| 20 Hz - 20 kHz filter | ON |
| Normalize amplitude | ON |
| Level change | -0.3 dB / -0.3 dB |
| Mono mode | OFF |
| Calibration singal, Hz | 1000 |
| Polarity | correct/correct |
Summary
| Frequency response (from 40 Hz to 15 kHz), dB | +0.13, -0.11 |
Very good |
| Noise level, dB (A) | -92.1 |
Very good |
| Dynamic range, dB (A) | 92.1 |
Very good |
| THD, % | 0.239 |
Poor |
| THD + Noise, dB (A)) | -50.1 |
Poor |
| IMD + Noise, % | 0.185 |
Average |
| Stereo crosstalk, dB | -82.7 |
Very good |
| IMD at 10 kHz, % | 0.246 |
Average |
| General performance | Good |
Frequency response
Left |
Right |
|
| From 20 Hz to 20 kHz, dB | -0.11, +0.13 |
-0.09, +0.14 |
| From 40 Hz to 15 kHz, dB | -0.11, +0.13 |
-0.09, +0.14 |
Frequency response, loudness
Left |
Right |
|
| From 20 Hz to 20 kHz, dB | -1.30, +4.18 |
-1.24, +4.21 |
| From 40 Hz to 15 kHz, dB | -1.30, +4.08 |
-1.24, +4.11 |
Frequency response, tone control
Left |
Right |
|
| Treble From 20 Hz to 20 kHz, dB | -26.17, +16.70 |
-26.17, +16.70 |
| Treble From 40 Hz to 15 kHz, dB | -20.05, +14.92 |
-20.05, +14.92 |
| Bass From 20 Hz to 20 kHz, dB | -16.29, +13.17 |
-16.29, +13.17 |
| Bass From 40 Hz to 15 kHz, dB | -14.22, +12.56 |
-14.22, +12.56 |
Noise level
Left |
Right |
|
| RMS power, dB | -91.1 |
-91.0 |
| RMS power (A-weighted), dB | -92.2 |
-92.0 |
| Peak level, dB FS | -74.1 |
-75.0 |
| DC offset, % | +0.0 |
+0.0 |
Dynamic range
Left |
Right |
|
| Dynamic range, dB | +91.1 |
+91.0 |
| Dynamic range (A-weighted), dB | +92.1 |
+92.1 |
| DC offset, % | +0.00 |
-0.00 |
THD + Noise (at -3 dB FS)
Left |
Right |
|
| THD, % | 0.24228 |
0.23567 |
| THD + Noise, % | 0.24241 |
0.23584 |
| THD + Noise (A-weighted), % | 0.31584 |
0.30724 |
Intermodulation distortion
Left |
Right |
|
| IMD + Noise, % | 0.18765 |
0.18167 |
| IMD + Noise (A-weighted), % | 0.13477 |
0.13115 |
Stereo crosstalk
Left |
Right |
|
| Crosstalk at 100 Hz, dB | -74 |
-88 |
| Crosstalk at 1000 Hz, dB | -78 |
-85 |
| Crosstalk at 10000 Hz, dB | -62 |
-63 |
IMD (swept tones)
Left |
Right |
|
| IMD + Noise at 5000 Hz, | 0.31101 |
0.30654 |
| IMD + Noise at 10000 Hz, | 0.22107 |
0.21793 |
| IMD + Noise at 15000 Hz, | 0.21222 |
0.20815 |
Conclusions
| A high-quality tone block, assembled on the TDA1524 microcircuit, is easy to install and connect. A wide range of tone settings and the
ability to turn on loudness will help you customize the timbre balance for almost any listener.
Summary: An excellent, budgetary tone block with power supply elements and voltage stabilization, which makes it almost universal. Unipolar power supply allows this preamplifier to be used in the on-board network of a car without any voltage converters, and small board sizes will help with installation in a compact case. You can buy a tone block in our kit-amp.com store. |
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