Fusion FM-504 4-Channel 500-Watt Marine Amplifier

Features

• Four-channel marine amplifier will drive a pair of speakers plus a ten-inch Subwoofer, or up to four pairs of speakers for 200 watts max at 2 ohms
• Conformal coated PCB boards, stainless steel end panels, and gold-plated connectors/inputs/outputs for protection against corrosion
• Variable low- (40 Hz-160 Hz) and high-pass (40 Hz-600 Hz) crossovers w/ 12dB slope; variable subsonic filter from 40 Hz-160 Hz
• Input level adjustment for matching head units; bass boost control for adding up to an extra 18dB of gain at 45Hz
• Five-year limited warranty

The Price Was: $399.99
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Product Description

Technical Information

Customer Reviews

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Add more power to your marine speakers by connecting a FUSION Marine Amplifier to your audio system, or install with a subwoofer to increase the bass level of your music. FUSION marine amplifiers feature anti-corrosion treated PCBs and stainless steel end panels for maximum corrosion protection. With 4 Channels the FM-504 will drive a pair of speakers plus a ten-inch Subwoofer, or up to four pairs of speakers (2 speakers in parallel each channel), for 200 watts max at 2 ohms, to help spread the sound around your boat.

Add more power to your marine speakers by connecting a FUSION Marine Amplifier to your audio system. Click here for a larger image Marine Tough

Built specifically to withstand the marine environment, the FM-504 features conformal coated PCB boards and stainless steel end panels, for protection against corrosion. Power, ground, input/output connections are all gold-plated as well, for the same reason.

Variable Bass Boost

Get some extra low end with a variable bass boost control, adding up to an extra 18dB of gain at 45Hz.

Variable Low- and High-Pass Crossover

The FM-504 features variable low- and high-pass crossovers, both with a 12dB/octave slope. The low-pass is variable from 40Hz-160Hz, and the high-pass from 40 Hz to 600 Hz.

Subsonic Filter

The FM-504 also features a subsonic filter, for carving off inaudible Sub Bass Frequencies below the set point (20Hz - 55Hz in this case) at 18dB/octave, to improve operating efficiency.

FUSION Regulated Amplifier Technology (F.R.A.T.)

This is FUSION's regulated amplifier design--FUSION amplifiers allow an enormous amount of output power at the lowest voltage (12.6 Volts) and extreme output at 14.4 volts.

FUSION Intercooled Semi-conductor Technology (F.I.S.T.)

"FIST" is an innovative method of clamping down all internal power switching and audio output devices with an aluminium extrusion with extremely low temperature co-efficiency. By using F.I.S.T it creates the perfect cooling solution, rapidly removing core heat from all associated semi-conductors from both sides of the device at once resulting in extremely low distortion and excellent thermal stability.

View a control/connection diagram. Click here for a larger image FUTRANZ Efficient Heat Sink Transfer Technology

In developing extremely powerful amplifiers, it is essential to keep things cool so FUSION developed a heat sink that has a heat dissipation ability like never before. This was not an easy task but none the less it was achieved, another important factor is efficiently transferring the heat from the semi-conductors to the heatsink, conventional designs use a white paste as the interface between these devices and the heatsink, this is not a perfect solution when complete surface coupling is required. So all Marine Ampliers come equipped with a composite heat transferring tape. Core heat in semi-conductors causes distortion and poor component performance characteristics. Testing has shown a massive reduction in core heat has been achieved by using the FUTRANZ heat transferring technology. In simplified terms

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