The Dual 25 Subwoofer Amp

HTP 25/25 Amp

This amplifier is manufactured for HTP International. The model number listed on the amp is 25/25w CV7 HTA 2000. This is amp is mounted on a plate that measures 10.25" x 4.875". It utilizes the Sanyo STK4141V Stereo Amplifier chip. The amp is complete and requires only the addition of a 28vct /32 vct transformer (which we stock) to power it. The amp features low level and speaker level inputs and speaker outputs. Stated power output is 25w per channel into 8 ohms. STK4141V spec sheet available upon request. This is would make a great addition to your computer's sound system!

New surplus


HTA 2000 Transformer


Bridge the Dual 25

Check out these instructions for bridging the Dual 25 sub amp. These modifications include a low pass filter of 90 hz and a high pass filter of 17 hz. The circuit can be built using a small external board. The LM324 IC has been utilized for this project. Other OP amps can be used. Two cuts to are required on the amp board.

This design was supplied by Bruce Gibson. Thanks Bruce.


See Thomas Laskowski's Dual 25 project.

[ Home | Amps | ParaPix | Infinity | Dual 25 Sub | Dual 25 FR | JBL12 | KG5150 | Senior |Alesis]