About the Morel MPS 4.400
Old school power
Old school power
Morel built this MPS 4.400 amplifier so their high-performing car speakers would have an amp worthy enough to power them, giving you high-fidelity musical reproduction along with pure, clean power. The MPS 4.400 can send 70 watts RMS to each of your front and rear speakers, boosting musical clarity and emotional impact. You can also set this amplifier to 2-channel mode and power a couple of subs with up to 200 watts RMS each.
Low-noise design
Morel made sure that every detail of this amplifier's design would result in lower noise and higher sound quality. The amp's Class AB architecture achieves the cleanest signal with the least distortion, while balanced differential inputs reject interference. An onboard microprocessor controls the thermal management system, keeping the amp running cool and steady no matter how hard it's driven. All the connections are on one side of the amp to keep wiring neat, organized, and simple for the installer.
Tone controls for every occasion
The high- and low-pass filters and gain controls sit protected under a top panel. Their intuitive operations and functions make it easy to match the amp's output to your speakers or subs — and achieve great sound. This amplifier's modest exterior shelters high-quality electronic components that guarantee an accurate and musical performance.
Product highlights:
- 4-channel car amplifier
- 70 watts RMS x 4 at 4 ohms (100 watts RMS x 4 at 2 ohms)
- 200 watts RMS x 2 at 4 ohms in bridged mode (4-ohm stable in bridged mode)
- Class AB amp technology
- 100 dB signal-to-noise ratio, 0.05% distortion
- variable high- and low-pass filters (40-400 Hz, 12 dB/octave) on front and rear channels
- preamp and speaker-level inputs
- speaker-level inputs require speaker wire to RCA adapters
- speaker-level inputs feature DC offset or signal sensing turn-on
- wiring, fuse, and hardware not included with amplifier
- 8-gauge power and ground wires and a 40-amp fuse recommended
- 13-5/16"W (including flange) x 2-1/8"H x 6-3/4"D
- warranty: 1 year
- MFR # 803144-100
What's in the box:
Morel MPS 4.400 owner's manual
- 4-Channel amplifier
- Four 5/8" Screws
- Two M4x4mm Machine screws (top panel replacement screws)
- 2mm Allen wrench
- 2.5mm Allen wrench
- 4mm Allen wrench
- Owner's manual
Customer reviews for Morel MPS 4.400
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Average review:
5.0 out of 5 starsCustomer photos
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More details on the Morel MPS 4.400
Features & specs
| Performance | ||
|---|---|---|
| RMS Power Output (Watts x Channels) |
70 x 4 | |
| Peak Power Output (Watts x Channels) | N/A | |
| Power at 2 Ohms (Watts x Channels) | 100 x 4 | |
| Power at 1 Ohm (Watts x Channels) | --- | |
| Bridged Power (Watts x Channels) | 200 x 2 | |
| Minimum Impedance Bridged | 4 | |
| Minimum Impedance Unbridged | 2 | |
| Minimum Impedance | 2 | |
| Best Frequency Response | 10-30k Hz | |
| THD at Rated RMS Power | 0.05% | |
| Signal to Noise Ratio | 100 dB | |
| Input Voltage | 14v | |
| Features | ||
| Amplifier Class | AB | |
| Low-Pass Crossover Frequency | 40-400 Hz | |
| Low-Pass Slope (dB/octave) | 12 dB/octave | |
| High-Pass Crossover Frequency | 40-400 Hz | |
| High-Pass Slope (dB/octave) | 12 dB/octave | |
| Bass Boost | No | |
| Bass Boost Frequency | N/A | |
| Fan Cooled | No | |
| Fuse Rating | 40 | |
| Speaker Level Inputs | Yes | |
| Preamp Outputs | No | |
| Width (inches) | 13-5/16 | |
| Height (inches) | 2-1/8 | |
| Depth (inches) | 6-3/4 | |
| Parts Warranty | 1 Year | |
| Labor Warranty | 1 Year | |
Product Research
Features
Controls
Connections
Specifications
Features
4-Channel Design: The amplifier is made up of two Class-AB full range stereo amps in one chassis (labeled Group A and Group B). The two amplifier sections are independently bridgeable, meaning the amp can be used as a 4-channel, 3-channel, or 2-channel amp. The minimum impedance is 2Ω (4Ω when bridged).
Differential-Balanced Inputs: The MPS 4.400 features differential-balanced inputs to control noise and ensure compatibility with a wide variety of source units, including many OEM systems. Without resorting to line output converters, you can directly connect most OEM source units to the amplifier without creating any noise or compatibility issues. Unlike conventional single-ended inputs, the differential-balanced design does not connect one side of the audio signal to chassis ground. This eliminates any voltage difference between the input terminal and ground, and reduces the incidence of alternator whine in a typical car audio installation.
Controls
Control Panel Cover: Most controls are under a removable part of the top panel, ensuring the amplifier's settings are not accidentally changed. The cover is installed at the factory, and must be temporarily removed to access the amplifier's controls. The security cover screws can be removed with the included 2.5mm Allen wrench.
- Input Level: the two amp sections have independent input level controls; labeled min/max, the voltage range depends on how the input voltage (high/low) is set
- Filter Mode: each section has a three position filter mode switch; Low Pass, Full Range, High Pass
- Filter Frequency: each amplifier section has an independent filter frequency (crossover point) dial; 40 Hz to 400 Hz (low pass or high pass)
- Turn On Mode: three position switch to set how the amp is turned on; Remote (+12 volts), Signal (senses an input signal voltage), Offset (reads a DC offset in the input signal, typically only used when "Remote" isn't an option and the "Signal" setting doesn't work reliably)
- Input Voltage:
- Low: 200mV-5V; typically used with line level outputs from an aftermarket source
- High: 400mV-10V; typically used with speaker level outputs
- Input Mode: 2-channel (inputs to Group A left and right supply both amplifier sections)/4-channel (inputs to Group A supply one full range amplifier, inputs to Group B supply the other)
Connections
- Signal Inputs: the amplifier has two sets of differential-balanced RCA jack inputs; Group A (full range, left/right), Group B (full range, left/right)
- Speaker Outputs: four pair of set screw terminals; accept up to 10-gauge wire
- Remote Turn-On: set screw terminal; accepts up to 10-gauge wire
- Power and Ground: set screw terminals; accept up to 4-gauge wire; 8-gauge recommended by Morel
Specifications
- Power Output (measured at 14 volts):
- 4Ω: 70 watts RMS x 4-channels
- 2Ω: 100 watts RMS x 4-channels
- Bridged: 200 watts RMS x 2-channels (into 4Ω)
- THD+N: 0.05%
- Frequency Response: 10 Hz to 30 kHz
- Signal-to-Noise Ratio: 100 dB (at rated power)
- Channel Separation: 64 dB
- Damping Factor: >100
- Input Voltage: 200mV to 10V
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Customer Q&A
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This amp does everything well with no shortcomings or draw backs. All metal construction and well made. Easy to use, good form factor and thought put into the design. The sound is produces is absolutely gorgeous and clean. No noise, no distortion. So glad I picked this amp.
Vincent from Ft Worth, TX