TDA7294 Subwoofer Amplifier Circuit

Guys Hi, I come to you with a new circuit. To tell you from the beginning, this circuit is developed with requests from me. These are simple, low-cost, practical, small size and a subwoofer amplifier for a standard home environment was sufficient.I think it’s just been such a circuit.Amplifier power is flawed TDA7294 with max. 70W RMS 5% distortion.Of course, some of this power to datasheette we need to table on page 3.

According to the impedance of the speaker will use the supply voltage can select g . I want to drop a note here , I can be seen in the video 2x24vac 300W into 4 ohms output transformer and speaker JBL 30cm . I drove by . Of course, only the speaker . Except it ‘s not 2 different (power and impedance) speaker . I did the test with . Clearly, one must be installed hour , 2 hour audio test despite 25% 2x24vac 4ohmluk 30cm speakers with the exception of heat reflected sound too was a side effect , so there was no deterioration . While the subwoofer is already less understood.

If we continue , but at present the circuit volume and frequency settings for now because I have the ability to quantify what the following is between these frequencies can not say . However, according to my speakers in my ear and I think it is appropriate by . Those who want can already edit it with a two- play by themselves . Apart from this, the power lines on the PCB with solder coating is helpful to have .

Finally, the sound quality of the video can not be understood , of course, but you can at least give you an idea

Come easily to everyone good work …

To the circuit diagram subwoofer amp;

TDA7294 Subwoofer Amplifier PCB files:

LINKS-22104.zip