These efficient, easy-to-install amplifiers work with your compatible Fusion stereo system1 and let you choose from monoblock, multichannel and zone amplifier options. Features Keep the music going for longer with efficient amplifier design. No more manual adjustments to your audio settings. The Easy Tune feature does it for you2. A glance at the LED indicators lets you identify potential issues with the amplifier. These amps have less distortion and noise, so you enjoy higher quality audio. Mounting brackets are included for simple installation. Power and Efficiency: The Apollo amplifiers are designed to produce impressive power with less drain on your battery. The monoblock produces 650-watt RMS and the 4/6/8 channel amplifiers produce 150-watt RMS per channel. Easy Tune Feature: These amplifiers use the Easy Tune feature2, which automatically regulates audio settings. So, you can get the best quality sound without making manual adjustments. Less Distortion: Some amplifiers distort audio when they add power. Ours are specifically designed with minimal distortion and noise, so you can enjoy high-quality audio, even at higher volumes. Led Indicator: The built-in LED indicator will show you if the amplifier may have a potential issue with electrical currents, shorts or temperature. Mounting Brackets: Easily install the amplifiers on board with the included mounting brackets. In the box One Apollo monoblock amplifier One mounting bracket One power connector One speaker connector Four 8-guage, flat head self-tapping screws Four 8-guage, pan head self-tapping screws (for mounting bracket) Four screw covers Mounting template Installation instructions Important safety and product information (ISPI) Specifications Channels Monoblock/4/6/8/Zone Physical dimensions (Height) Monoblock/4/6/8-Channel: 7.06" (180 mm) Zone: 3.94" (100 mm) Physical dimensions (Width) Monoblock/4-Channel: 9.25" (235 mm) 6-Channel: 11.69" (297 mm) 8-Channel: 14.13" (359 mm) Zone: 3.94" (100 mm) Physical dimensions (Depth) Monoblock/4/6/8-Channel: 1.75" (45 mm) Zone: 1.57" (40 mm) Weight Monoblock/4-Channel: 4.85 lbs (2.2 kg) 6-Channel: 5.95 lbs (2.7 kg) 8-Channel: 6.94 lbs (3.15 kg) Zone: 1.01 lbs (460 g) Water and dust rating Monoblock/4/6/8-Channel: IPX2 Zone: IPX7 Operating temperature range 32° to 122° F (0° to 50° c) Warranty 3 years Amplifier class Class D Rated continuous (RMS) power (14.4 V input @ 4 Ohm < 1% THD) Monoblock: 650 W x 1 4-Channel: 150 W x 4/580 x 2 (Bridged) 6-Channel: 150 W x 6/580 x 3 (Bridged) 8-Channel: 150 W x 8/580 x 4 (Bridged) Zone: 20 W x 2 Rated continuous (RMS) power (14.4 V input @ 2 Ohm < 1% THD) Monoblock: 1100 W X 1 4-Channel: 290 W X 4 6-Channel: 290 W X 6 8-Channel: 290 W X 8 Zone: 30 W X 2 Frequency response (+0, -1dB) 20 Hz-20 Khz Input sensitivity @ RCA inputs Monoblock: 2.15 V RMS 4/6/8-Channel: 1.3 V RMS Zone: 0.45 V RMS Input voltage range @ RCA inputs Monoblock: 2.15 V RMS 4/6/8-Channel: 1.3 V RMS Zone: 0.45 V RMS Input impedance Monoblock/4/6/8-Channel: 22 kΩ Zone: 9 kΩ Current consumption (Standby) Monoblock/4/6/8-Channel: Zone: < 1 mA @ 14.4 V input Current consumption (Idle) Monoblock: 4-Channel: 6-Channel: 8-Channel: Zone: < 0.04 A @ 14.4 V input Current consumption (Max) Monoblock: 87 A 4-Channel: 53 A 6-Channel: 78 A 8-Channel: 104 A Zone: 10 A Fuse rating Monoblock/6/8-Channel: 125 A electronic fuse (no replacement neccessary) 4-Channel: 85 A electronic fuse (no replacement neccessary) Zone: 16 A electronic fuse (no replacement necessary) Min. copper power/Ground wire gauge Bussmann™ BK/AMI-030 30 A fast-acting Protection circuits Reverse voltage Input under/over voltage Over temperature Output short circuit