is there a simple way to test sub amp?

[speakerbug]

I need to buy a sub amp with 600 watts RMS to run a JL 13tw5. There seem like a lot of bargains on Craigslist, but fear buying a piece of junk. Is there a basic test I can do to see if it works properly?

Right now I am looking at this:

Audiobahn 1800-Watt Class D Amplifier Model #: A18001DQ - $100

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Reply to:@craigslist.org [?]
Date: 2008-12-06, 3:32PM EST



Selling this incredible amp from Audiobahn....
Audiobahn 1800-Watt Class D Amplifier

Technical Details
Class D Circuitry
Multi-Stranded Power Supply Toroids
Double-Sided Glass Epoxy Circuit Board
Total Harmonic Distortion (THD): 0.05%
Signal to Noise Ratio: >100dB

Product Details and Features
Product MPN
MPN a18001dq
Key Features
Amplifier Type Mono Channel
RMS Power at 4 Ohms 0.05 W x 600
RMS Power at 2 Ohms 2 W x 600
Performance
Signal to Noise Ratio 1200 dB
Crossover / Equalizer
Bass Boost Frequency 50 Hz
Dimensions
Width 100 in.
Height 2.5 in.

Retails at over $350.00

Asking $100.00 O.B.O.

[benlebow]

If you gave me $20, I'd take the Audiobahn.

IOW, steer clear. Shoddy build, espacially that one. Unreliable in my experience. A friend asked me about fixing that exact model for him.

[speakerbug]

Thanks much. I suspected that might be the case. Would you mind naming any other brands that it might be prudent to avoid in the second hand marketplace?