AudioBahn A2301Q Car Audio Amp

You have to wire it in 'Bridge Mode'.

https://www.google.com/search?q=audiobahn+a2301Q+connect+2+subs%2C+2+speakers

RMS Power at 4 Ohms: 75 W x 2 RMS Power at 2 Ohms: 105 W x 2

audiobahn.com under tech support you can download your manual for almost any thing even shows you wiring diagrams helped me out...

check out audiobahn.com thier is a free wiring diagram under tech support

Generally, if the amplifier smokes, the power supply FETs have failed.

Many times, the output transistors fail and that causes the power supply FETs to fail.

Audiobahn won't release schematics. The amplifiers are relatively simple and a schematic isn't generally required.

If you know how to check the transistors, check them to determine the severity of the damage. If you don't know how to check them, read through the following page following all links provided.

Basic Amplifier Repair

Let me know if you have any other questions.

On the following page, go to the section labeled 'Checking Bipolar Transistors'. Under the two images, you will find a link to a form that will allow you to enter all of the values with the various lead configurations. Follow the instructions and send me the zipped file with the images. There's a link for my email address. Testing results are more definitive when the transistors are out of the board but initial testing in the board is reasonably reliable.

Checking Transistors

If the amp goes into protect with the wires unplugged from the board, the amp likely has more serious problems. It may have a shorted power transformer and almost certainly has shorted output transistors. If you think you may want to try to repair it yourself, read through the following page (particularly the information in the yellow box). Respond to this post if you have more questions.

Basic Repair Primer

audiobahn.com can help you with the free diagrams under tect support

Is the protection light lit?

This indicates a possibility of a power supply issue, you may have to open up the unit and take voltage measurements to determine if the voltages are correct. In order to do this you will need a schematic diagram of the unit. Once you have the schematic you will be abor to tell which voltages are legitimate. I hope this helps