A really good amp doesn't just provide power. It also offers options for customizing the sound in your vehicle. The 2-channel GM-5300T provides a selectable 50Hz bass boost and a built-in crossover for fine-tuning your tunes...

The 4-channel GM-4300F delivers a grinding 400 watts max (40 watts x 4 or 100 watts x 2 at 4 ohms; 50 watts x 4 at 2 ohms) — plenty of juice to power your high-quality speakers. It's also got built-in 4-channel crossovers...

Looking for an amplifier to drive your subwoofers? You need to get your hands on the new GM-7300M Mono Amp. It powers out 360 watts when driven at 2 ohms - drive it hard, and you can even get up to 800 watts maximum...

General Features: * Evolution Series Class D Amplifier * RMS Power Rating: o 4 ohms: 270 watts x 1 chan. o 2 ohms: 450 watts x 1 chan. o 1 ohms: 620 watts x 1 chan. * Max power output: 2500 Watts * Bass remote details (Wired remote bass level control included) * Power/diagnostic LED indicator * Variable Bass Boost: 0-18 dB at 45Hz * Hig/low level input through RCA * Double sided PCD design * Thermal/short circuit protection * RCA line out * Tri-mode capability * Soft delayed power on * Gold-plated RCA level inputs * Gold-plated screw terminals * Low-pass filter (30-250 Hz at 24dB/octave) * Subsonic filter (10-50 Hz) * Frequency response: 10-250,000 Hz * Dimensions: 11-1/4L x 10-1/2W x 2-3/8H * 4-gauge power and ground wiring is required for installation...