Alpine MRV-F401 User Manual

®
1 of 2
R.230197
MRV-F401
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Features
Specifications
• 4/3/2 CHANNEL OPERATION - Can be used in
a 4 channel mode providing 40W x 4 into 4 ohms
or 50W x 4 into 2 ohms, or in mono mode
producing 100W x 2 into 4 ohms. (all power
ratings are from 20Hz to 20kHz at 12V DC).
• MULTIMODE™ CAPABILITY - The MRV-F401
can operate in 4-channel stereo and bridged mono
modes simultaneously.
• ACTIVE DIVIDING NETWORK - A built in
variable electronic crossover network from
50 - 200Hz (12 dB per octave) can be used to
set up the amplifier for low pass or high pass
applications. This network can also be switched
off for full range applications.
• DUO ß FEEDBACK CIRCUITRY - Supplies low
negative feedback throughout the audio
frequency bandwidth and very high negative
feedback at DC. This stabilizes the amplifier,
removes the DC offset, offers excellent total
harmonic distortion (THD), and provides low
transient intermodulation distortion (TIM).
• NO CURRENT LIMITING - Absence of current
limiters in the audio section ensures low TIM,
excellent transient response and superb
sound quality.
• S.T.A.R. CIRCUITRY - Signal Transient for
Accurate Response. A Luxman developed circuit
design which improves sonic properties by reducing
interaction between different sections of the circuitry.
• INPUT MODE SELECTOR SWITCH - Mono;
Stereo; Left + Right.
Power Output
RMS Power (at 12V, 20-20kHz)
Per Channel into 4Ω ....................... 40W x 4 (0.08% THD)
Per Channel into 2Ω .......................... 50W x4 (0.3% THD)
Bridged 2 Channel into 4Ω ........... 100W x 2 (0.3% THD)
Dynamic Power (at 14.4V, 20-20kHz)
Per Channel into 4Ω ...................... 60W x 4 (0.08% THD)
Per Channel into 2Ω ......................... 80W x 4 (0.3% THD)
Bridged 2 Channel into 4Ω ........... 160W x 2 (0.3% THD)
Frequency Response..................... 10Hz to 50kHz (±0, -1 dB)
Signal-to-Noise Ratio . 100dBA(referenced to rated power)
Input Sensitivity (for rated power)
Line inputs .......................... 200mV-4V (500mV at detent)
......................................................................... (1.0V at center)
Slew Factor .......................................................... Greater than 5
Input impedance ......................................................... 10k ohms
Speaker Impedance .................. 4 or 2Ω (stereo) or 4Ω mono
Dividing Network Frequency and Slope
.............................................................. 50-200Hz (12dB/oct)
Power Requirements ............. 11-16V DC (negative ground)
Dimensions (WxHxD) ............................ 9-7/16"x2-1/16"x13"
...................................................................... (240x53x330mm)
Weight.............................................................. 8lb. 13oz.(4.0kg.)
• CONTINUOUSLY ADJUSTABLE GAIN
CONTROL
• FULLY DISCRETE, COMPLEMENTARY
OUTPUT CIRCUITRY
• GOLD PLATED RCA INPUT CONNECTORS
• GOLD PLATED SCREW-DOWN POWER AND
SPEAKER TERMINALS
• HIGH PERFORMANCE, LOW NOISE,
AUDIOPHILE QUALITY ACTIVE AND
PASSIVE COMPONENTS
• MOSFET PULSE WIDTH MODULATED (PWM)
DC-DC POWER SUPPLY - Alpine developed a
new type of PWM power supply that maintains
rated power output down to 12V DC and allows
for an approximate 40% increase in output power
at higher, real world, battery levels.
• TOP MOUNTED LED POWER INDICATOR
• NON-FADING PRE-AMP OUTPUT - A set of
non-fading preamp outputs are included which
can eliminate the need for RCA "Y" connectors
and allows for greater system flexibility.
• DC STRAIGHT DESIGN - Fewer components in
the audio path to improve sound quality.
• SOLID COPPER BUS BARS - Improved power
transfer and less voltage drop in power supply.
• LARGE INTERNAL CAPACITANCE - The
MRV-F401 has 16,400uF of internal capacitance.
• ISOLATED AUDIO AND POWER SUPPLY
SECTIONS
Specifications and design are subject to change without notice.
4/3/2 Channel V12 Series Power Amplifier
4/3/2 CHANNEL
POWER AMPLIFIER
1 ST 1+2
50 200
100
INPUT MODE FILTER
GAIN
CROSSOVER
OFF HP LP
4 0.2
1
0.5
CHANNEL-1/2 CHANNEL-3/4
MRV-F401
(Hz) (V)
3 ST 3+4
50 200
100
INPUT MODE FILTER
GAIN
CROSSOVER
OFF HP LP
4 0.2
1
0.5
(Hz) (V)
INPUT CHANNEL
1/2 3/4 1+3/2+4

Alpine MRV-F401 Specifications

General

Channels	4
RMS Power at 4 Ohms	50W x 4
RMS Power at 2 Ohms	75W x 4
Bridged RMS Power at 4 Ohms	150W x 2
Frequency Response	10Hz - 50kHz
THD at Rated Power	0.08%
Input Voltage	14.4V
Input Sensitivity	0.2V - 4V
Signal to Noise Ratio	100dB

Summary

Features

4/3/2 Channel Operation Modes

Allows operation in 4-channel stereo (40W x 4 into 4Ω) or mono (100W x 2 into 4Ω).

MultiMode Capability

Enables simultaneous 4-channel stereo and bridged mono operation.

Active Dividing Network

Variable electronic crossover (50-200Hz, 12dB/oct) for low/high pass or full range.

MOSFET PWM Power Supply

Features Alpine's PWM power supply for stable output down to 12V DC.

Specifications

Power Output

Details RMS and dynamic power ratings for various impedance loads and conditions.

Frequency Response

Specifies the amplifier's audio frequency range and tolerance.

Signal-to-Noise Ratio

Indicates the amplifier's noise performance relative to rated power.

Input Sensitivity

Defines the voltage range required for rated power input.

Wiring and Connections

Mono Loading Configurations

Illustrates wiring for 4 Ohm mono loading using front and rear speaker outputs.

Stereo Loading Configurations

Shows wiring for 2 Ohm or 4 Ohm stereo loading for front and rear outputs.

Pre-Amp Output Connection

Details connecting non-fading pre-amp outputs to an optional amplifier.