Alpine MRP-F300 Amplifier Review
After look at the Alpine MRP-M500 yesterday I decided to talk a look at the Alpine MRP-F300. This is also a class D mono amplifier designed for powering our subwoofers but it is set up a little bit different. The Alpine MRP-F300 offers a few different wiring options. You have the 50W x 4 at 4 ohms, 75W x 4 at 2 ohms and bridged 4 ohms to delivered 150W x 2. The MRP-F300 has a MSRP of $230.00. As with all the MRP amps from Alpine you have the heat sinks and other cooling technology to keep this amp running cool and giver your subwoofers great clean power.
Features and Specification
SPECIFICATIONS
CEA-2006 Power Ratings
- CEA-2006 Power Rating: (4 I? @14.4V Ƈ% THD+N, S/N: 80dBA, ref:1W into 4 I?) 50W x 4
RMS Power Ratings
- Per channel into 4 Ohms: (@ 14.4V Ƈ%THD+N, 20Hz – 20kHz) 50W x 4
- Per channel into 2 Ohms: (@ 14.4V Ƈ%THD+N, 20Hz – 20kHz) 75W x 4
- Bridged 4 Ohms: (@ 14.4V Ƈ%THD+N, 20Hz – 20kHz) 150W x 2
Sound Tuning
- Crossover: 50Hz-400Hz, -12dB/oct. (Low-Pass/High-Pass)
- EQ (Equalizer): Bass EQ (Fixed Frequency): 50Hz +12dB
- Subsonic Filter: 15Hz (Fixed), -18dB/oct.
Dimensions
- Foot Print (WxHxD) mm: 270mm x 60mm x 242mm
- Foot Print (WxHxD) in: 10-15/16” x 2-23/64” x 9-27/32”
- Heat Sink (WxHxD) mm: 210mm x 60mm x 242mm
- Heat Sink (WxHxD) in: 8-17/64” x 2-23/64” x 9-33/64”
General
- Power Requirements: 14.4V DC (11V to 16V)
- Input Sensitivity: 0.2 – 4.0V
- Frequency Response: 20 -20kHz (0, -1dB)
- Speaker Impedance: 4 or 2 I?
- Signal to Noise: 100dBA
FEATURES
Install
- Terminal Layout: Two-Sided
- Screw Mount / Wire Cover: Integrated Wire and Mounting Screw Terminals
General
- Amplifier Type: Class-A/B
- Channel Design: 4/3/2 Channel
- Thermal Control: Thermal Management Control
- Power Supply: DC-DC PWM Power Supply
- Power Supply Design: MOSFET Power
- Board Circuitry: STAR Circuitry
- Current Protection: Over-Current, Over-Voltage and Thermal Protection
- Power Indicator: Top Mounted Blue LED Power Indicator
- RCA Output: Gold Plated RCA Input Connectors
- Speaker-Level Inputs: Speaker Level Inputs
- Crossover: Adjustable Low-Pass/High-Pass
- Connector Plating: Gold Plated Input, Output, Power and Speaker Terminals
- Pre-Amp Stage: Discrete
- Final Outputs: Non-Fading Pre-Amp Output
- Board Design: Dual Sided Glass Epoxy PC Board
- Gain Control: Continuously Adjustable Gain Control
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Installed some Infinity mids in all 4 doors with tweeters and this amp pushes them quite well. I don’t have a sub yet so I turn the bass boost on and the speakers really come alive. Great construction only wish the space for the power wire and ground wire were larger so I can use the 4 gauge wire I have but instead I had to use some 8 gauge wire but I’m sure it’s fine. All in all a great amp and no heat problems at all even in a cargo tray in my trunk covered with the stock carpet.