MOTO 600.4 - Arc Audio 4-Channel 600W RMS Ultra Compact Class D Amplifier

The MOTO 600.4 is a Class D amplifier, selected specifically to maximize power efficiency. That means the amp delivers more power per watt consumed from the battery than other types of amplifiers. A very high efficiency rating also minimizes the amount of heat developed, a real problem when the amp is mounted under a tight fitting fairing. Speaking of tight fitting, Fred Lynch, the product guru at Arc Audio explained to me that this amplifier’s size and shape were chosen specifically to make the amplifier fit on the top of the radio in a Harley-Davidson touring bike. As a result, the 600-watt amplifier measures a very compact 8.125 x 5.4 x 1.8 inches.

To further enhance the amp's cooling capability, a fan cooling system draws air in and over the components and exhausts it out the rear of the chassis. As a result, the amp is claimed to be capable of several hours of high output operation without shutting down. Thoughtfully included with the amplifier is a remote mounted status LED that shows the amplifier’s status should any of the amp’s multiple protection circuits ever be activated.

Because of the proximity of the amplifier to the bike's radio and antenna cable, great care was taken to reduce the electromagnetic interference (EMI) that is common in many Class D amplifiers. To minimize the possibility of any radio interference, the MOTO 600.4 uses fully encapsulated output inductors and filtered power connections. The chassis is designed to block high frequency emissions and even the fuses have been moved inside the chassis to reduce interference.

Some bikes come with 4-ohm speakers, some come with 2-ohm speakers and many times, the choice of amplifier has been limited to only the ones that are compatible with your speakers. Arc Audio has a solution for this dilemma via an unusual, but incredibly handy feature that allows the user to select the intended load impedance for the front and rear channels individually. This not only allows you to run differing impedance speakers, but you could also take advantage of it to run the amp in bridged mode. This feature, coupled with the ability to adjust crossover points from 50 to 500 Hz and a variable bass boost means that this amp is also an excellent candidate for use in UTVs, boats, or any other type of vehicle.

Features and Specifications:

• 4-Channels at 4-Ohms: 150W
• 4-Channels at 2-Ohms: 150W
• 2-Channels at 4-Ohms: 300W
• Frequency Response: 20Hz - 20kHz
• Total Harmonic Distortion: 0.02% THD
• Bass Boost: 12dB at 45Hz
• Fuse Rating: 30A x 2 Internal
• Dimensions: 8.25" L x 5" W x 1.75" H
• Compatible with all 2 and 4-Ohm Systems
• 600W at 2 or 4-Ohms
• Ultra Compact Design Fits inside Most Fairings
• Remote Status Display Light Included
• Weather Resistant Chasses Design
• Superior Sound Quality
• Bridged Mode Auto Detect Turn-on works with most chip based OEM Headunits
• Fully Balanced Input Stage signifficantly reduces the change of engine noise
• Inputs are compatible with speaker level and RCA inputs
• Micro Processor controlled protection including Short Circuit, Thermal, DC Offset, Overvoltage and Undervoltage
• Fault Code Storage of the last protections code detected
• Quick disconnect speaker terminal and input plugs
• High Frequency Switching Power Supply Delivers more power without compromising sound quality
• Audiophile Class D output filter networks
• Selectable Impedance optimization allows full power output at either 2 or 4-ohm stereo operation. (On selected models)
• Flexible mounting orientation for vertical or horizontal installations
• Input inductor isolated power supply reduces unwanted interference in radio reception
• Ultra Low ESR, High capacity power supply storage bank compensates for potention fluctuations in power demand improving output even under high demand
• High speed Class D technology powers the MOTO 600.4 producing very little heat

Manual