Hi-fi quality stereo preamplifier board featuring Volume control (with integral power switch), Balance, Bass and Treble tone controls. It provides very pleasing performance and makes a useful addition to any of our audio power amplifier kits. RCA jacks for audio inputs.
It is easy to construct due to the use of a special IC, the Philips TDA1524A. This contains all the circuitry required to provide up to 20 dB of voltage gain, +/-15 dB of bass and treble control, channel balance, and a switchable loudness contour.
Because it uses voltage control, linear single gang pots can be used , which lowers the costs and reduces tracking errors. It also allows for control by switches or microprocessor if desired.Features
|Input Power:||15-20Vdc (Order Code CFE006)|
or 12Vdc battery (see User Manual for full details)
|Current consumption||50mA max.|
|Maximum output:||> 3V RMS|
|Maximum input:||> 300 mV, G = 20 dB|
> 3V RMS, G = 0dB
|Input Z:||> 10K ohm|
|Output Z:||< 300 ohm|
|Frequency resp.:||< 10 Hz to > 50 kHz ±1 dB|
|THD at 1kHz:||< 0.1 % at 1V output|
|S/N ratio:||> 80 dB, G = 0 dB|
|Bass boost/cut:||~ 15 dB at 50 Hz|
|Treble boost/cut:||~ 15 dB at 15 kHz|
|Board Dimensions||66 x 113mm|
|Board Connections||Solder pins & RCA connectors|
|Product Format||SELF-ASSEMBLY Electronic Kit (KT) or|
PRE-ASSEMBLED Electronic Module (AS) Product Formats Info
TDA1524A IC Data Sheet
AS3100KT preamp with tone controls
If you can solder the kit is very easy to build. I placed mine in a diy chassis with the matching power supply and it sounds amazing for the price. Loudness contour is a nice touch.
Submitted by: Mike on 09/01/2022 21:29:27
Good Amplifier Module Circuit
Submitted by: Rohit Kumar Mahli on 13/05/2021 05:59:21
Nice Little Tone Control Board
Pros: Nice quality circuit board and compnents. Easy to build.
This tine controls board is just what I was looking for.
Submitted by: richj23 on 23/06/2020 15:46:21