My 2 channel is now 1!

[SKMexiFry]

What could be wrong with my amp? I recently acquired a Pioneer GM-X322. Here are the specs:

2-Channel Power Amplifier with built in Crossover


Specifications
Continuous Power (20Hz-20kHz, 0.08% THD)
2 ch: (4 Ohm) 35Wx2
2 ch: (2 Ohm) 50Wx2
1 ch: (4 Ohm) 80Wx1
Maximum Power (EIAJ)
2 ch: (4 Ohm) 70Wx2
1 ch: (4 Ohm) 160Wx1
Frequency Response: 10Hz - 50kHz (0,-1dB)
Total Harmonic Distortion: 0.004% (1kHz, 4 Ohm)
Signal-to-Noise Ratio: 105dB (IHF-A Weighted, at 1kHz)
Dimensions: 8-1/8" x 2" x 6-7/8"
Features

Bridgeable 1/2/3 Channel Capability
High-Current 2 Ohm Operation
PWM MOSFET Power Supply
Balanced Isolator Input Circuit
Screw-Type Power/Ground Terminals
Screw-Type Speaker Terminals
RCA Inputs
Hi-Volt Input Level Control (400mV-4V)
Speaker Level Inputs
Selectable Crossover: 80Hz, -18dB/oct. (LPF) or 80Hz, -12dB/oct. (HPF)
Bass Boost (60Hz, 0 to +12dB)

As for my problem. I hooked up this amp to my 6x9's, and the sound only came out of one channel. I tried switching channels around, but still only the left channel was working. I thought it might be the speaker, but they worked when I reconnected the original stock wires. I have the amp connected to the deck with RCA's. The amplifier also works great when I bridge it, but doesn't in stereo. I did only pay $20, but I would like it to also work. Help?

[denim]

you might have to send it back to the dealer or the manufactuor, something could have been frind in side, it happens everyonce in a while, or it could be something as simple as a lose connectino inside the amplifer