Rockville
MRDF-4
MRDF-4
4-Channel Marine Amplifier, 700W RMS, Includes Terminal Covers and Mounting Hardware
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Features
- 700W RMS total at 2 ohms across four marine-audio channels
- 76% efficiency at 2 ohms and 85% at 4 ohms
- 50Hz to 250Hz adjustable high-pass and low-pass filters
- Terminal covers, sealed connections, and a conformal-coated circuit board
- Includes mounting hardware and spare fuses
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What's Included in the box
- MRDF-4 4-Channel Marine Amplifier
- White Silicone Terminal Covers
- Mounting Hardware
- Spare Fuses
SKU: SKU: MRDF-4
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Product Details
Features
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Marine-Sealed Connections
White silicone covers seal around power, ground, remote, and RCA connections, helping shield these points from splashes and salt corrosion aboard the boat.
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Protection for Humid Conditions
A conformal-coated circuit board and UV- and salt-resistant chassis shield internal electronics from moisture, salt air, and humidity during marine use.
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Full-Range Output in a Small Footprint
Micro-size Class D circuitry with SMD components and a high-speed MOSFET supply delivers 700W RMS total at 2 ohms in a compact chassis.
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Tune for Your Speaker Setup
Adjustable high-pass and low-pass filters cover 50Hz to 250Hz for shaping full-range speakers, component speakers, or bridged subwoofers in a boat audio system.
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Check Operating Status at a Glance
Power, status-mode, and clipping LEDs report amplifier conditions, while thermal, short-circuit, and over-voltage protection guard against common operating faults during operation.
Technical Specifications
- Product Type 4-Channel Marine Amplifier
- System RMS Power (2 Ohm) 700W RMS (at 2 Ohms)
- 2 Ohm Stereo RMS Power 175W RMS x 4 at 1 kHz, 2Ω, 1% THD+N, 14.4 VDC (76% efficient)
- 4 Ohm Stereo RMS Power 115W RMS x 4 at 1 kHz, 4Ω, 1% THD+N, 14.4 VDC (85% efficient)
- 4 Ohm Bridged RMS Power 350W RMS x 2 at 1 kHz, 4Ω, 1% THD+N, 14.4 VDC (76% efficient)
- Peak Power (2 Ohm) 700W x 4 Channels
- Peak Power (4 Ohm) 460W x 4 Channels
- System Peak Power 2,800W
- Distortion Under 0.03% THD+N at 1W RMS (20Hz to 20kHz)
- Frequency Response 5Hz to 45kHz (±3 dB)
- Signal-to-Noise Ratio 73 dBA (Reference: 1W RMS into 4 Ohms)
- Stereo Separation -56 dB (at 5 kHz)
- Damping Factor 64.88
- Input Sensitivity 224 mVrms to 6.00 Vrms
- Modes Full Range / Low Pass / High Pass
- LPF/HPF Range 50Hz to 250Hz
- Operating Voltage 9 VDC to 16.1 VDC
- Idle Current Draw 1A
- Fuse Rating 80A total (4 x 20A internal fuses)
- Power/Ground Terminals 4 AWG
- Speaker Outputs 10 AWG
- Power Supply High Speed MOSFET
- Audio Topology Digital Class D
- Protection Features Thermal protection, short circuit protection, and over voltage protection
- Dimensions (L x W x H) 10.43" x 4.92" x 1.81"