Alpine MRP-F240 4-channel car amplifier 40 watts RMS x 4 at Crutchfield

4-channel car amplifier

40 watts RMS x 4

Item # 500MRPF240

Thanks to impressive power output, affordable pricing, and exceptional reliability, Alpine’s V-Power amps are…

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Alpine MRP-F240 – Front

Alpine MRP-F240 – Left

Alpine MRP-F240 – More Photos

Alpine MRP-F240

Alpine MRP-F240

Alpine MRP-F240 – Right

Thanks to impressive power output, affordable pricing, and exceptional reliability, Alpine’s V-Power amps are. ..

Discontinued item

Item # 500MRPF240

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by Crutchfield’s

Erin wrote about mobile A/V gear at Crutchfield for several years, and worked as a Sales Advisor in our contact center before that. She left Crutchfield to open her own toy store, Pufferbellies, in nearby Staunton, Virginia, which continues to keep her busy.

More from Erin B.

Erin Blanton’s 2000 Honda CR-V

Thanks to impressive power output, affordable pricing, and exceptional reliability, Alpine’s V-Power amps are consistently among our best-selling models. The 4-channel MRP-F240 gives you awesome bang for your buck, and sports some “extras” that you’d usually find only on higher-priced amps.

KEEP READING

Thanks to impressive power output, affordable pricing, and exceptional reliability, Alpine’s V-Power amps are consistently among our best-selling models. The 4-channel MRP-F240 gives you awesome bang for your buck, and sports some “extras” that you’d usually find only on higher-priced amps.

The MRP-F240 is designed to work in a variety of applications: With 40 watts RMS per channel in 4-channel mode, you can easily drive two pairs of full-range or component speakers. Or, bridge the amp to 2-channel mode for 100 watts RMS x 2. That power makes your music sound tighter and more detailed at all volume levels.

Selectable high-pass/low-pass crossovers at 80 Hz let you adjust the frequency output depending on whether you’re powering full-range speakers or a sub. If you’re driving a subwoofer and using the low-pass crossover, a subsonic filter automatically engages on channels 3 and 4; this eliminates very low bass notes (those that are too low to hear) for cleaner performance.

You’ll want to take advantage of BassEQ’s adjustable boost (up to 12 dB at 50 Hz). Speaker-level inputs allow you to connect the MRP-F240 to just about any system, and gold-plated terminals ensure that you get clean signal transfer both into and out of the amp.

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• Our 60-day money-back guarantee

Product Highlights:

• 40 watts RMS x 4 at 4 ohms
• 50 watts RMS x 4 at 2 ohms
• 100 watts RMS x 2 bridged output at 4 ohms
• 2-, 3-, or 4-channel output
• 4-ohm stable in bridged mode
• Tri-way capable (Tri-Way crossover required)
• requires 10-gauge power and ground leads — wiring and hardware not included with amplifier
• selectable high-pass/low-pass crossover at 80 Hz, 18 dB/octave (2 separate crossovers, one for channels 1 & 2, another for channels 3 & 4)
• subsonic filter at 15 Hz for channels 3 & 4
• tuned Bass EQ (0-12 dB bass boost at 50 Hz) for channels 3 & 4
• preamp outputs
• MOSFET power supply
• STAR Topology (minimizes internal noise and prevents ground interference)
• speaker- and preamp-level inputs
• gold-plated screw terminals
• 10-1/2″W x 2-7/16″H x 9-9/16″D
• 1-year warranty
• MFR # MRP-F240

What’s in the box:

Alpine MRP-F240 owner’s manual

• One 4-channel amplifier
• One 8″ speaker-level input harness (with 8-pin Molex plug on one end and bare wire on the other end)
• RCA cover
• 3 Rubber terminal covers
• 4 Self-tapping hex-head screws
• 2 Machine screws (for securing RCA cover)
• Owner’s Manual (English/French/Spanish)
• Warranty sheet
• “Important Tips on Bridging an Amplifier” sheet
• Customer Care Registration card

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Details

Researched by Crutchfield’s Mark G.

Performance
RMS Power Output (Watts x Channels)	40 x 4
Peak Power Output (Watts x Channels)	75 x 4
Power at 2 Ohms (Watts x Channels)	50 x 4
Bridged Power (Watts x Channels)	100 x 2
Minimum Impedance Bridged	4
Minimum Impedance Unbridged	2
Minimum Impedance	2
Best Frequency Response	10-50k Hz
THD at Rated RMS Power	0. 08%
Signal to Noise Ratio	100 dB
Input Voltage	14.4v
Features
Amplifier Class	AB
Low-Pass Crossover Frequency	80 Hz
Low-Pass Slope (dB/octave)	18 dB
High-Pass Crossover Frequency	80 Hz
High-Pass Slope (dB/octave)	18 dB
Bass Boost	0-12 dB
Bass Boost Frequency	50 Hz
Fan Cooled	No
Fuse Rating	25 x 1
Speaker Level Inputs	—
Preamp Outputs	1 pair
Width (inches)	10-1/2
Height (inches)	2-7/16
Depth (inches)	9-9/16
Parts Warranty	1 Year
Labor Warranty	1 Year

Product Research

Features
Inputs and Outputs

Features

Power Supply: The MRP-F240
amplifier’s power supply uses MOSFETs to convert DC battery voltage to the
higher DC voltages needed for high power. It supplies positive and negative
voltages around 0V, rather than around 6V as with conventional single-polarity
power supplies. The result is higher power levels and a dynamic range wider by
as much as 10dB.

Gain Controls: This amp has
independent front and rear channel gain controls.

Crossovers: Both front and rear
channels have independently selectable high-pass and low-pass fixed 80 Hz
crossovers with a slope of 18dB/octave.

Subsonic Filter: This amp
utilizes a 15Hz subsonic filter to eliminate super low frequencies that can rob
power and damage speakers. The subsonic filter operates only for the rear
channels, and is engaged when the rear channel crossover is set to
“low-pass” operation.

Bass EQ: The Bass EQ circuit
provides a boost of 0-12dB at 50 Hz for the rear channels only. The Bass EQ does not function when the amp’s rear-channel crossover is set to “high-pass” operation.

Inputs: The amplifier offers
both line-level and speaker level inputs for 4 channels. The supplied speaker-level
input harness allows you to connect this amplifier to a receiver without preamp
outputs, either aftermarket or factory.

Line Outputs: This amplifier
has a pair of non-fading stereo RCA line outputs. You can use these outputs to
daisy-chain another amplifier without having to run additional signal cables
from the receiver.

RCA Cover: The amp comes with a
plastic cover that protects and insulates the RCA connections. Two supplied
machine screws attach the cover to the amplifier. Note: The cover adds
about 1-1/4″ to the width of the amplifier when installed.

Inputs
and Outputs

Left Side Of Amplifier:

• GND (ground): Gold-plated
  terminal strip, 0.33″ wide
• Battery: Gold-plated
  terminal strip, 0.33″ wide
• Remote: Gold-plated terminal
  strip, 0. 33″ wide
• Speaker Outputs: Gold-plated
  terminal strips for 4 speakers, 0.33″ wide

Right Side Of Amplifier:

• Line Inputs: 2 pairs of gold-plated
  stereo RCA jacks
• Line Outputs: 1 pair of
  gold-plated stereo RCA jacks
• Speaker Level Input: Molex
  plug input for included 8-pin harness

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User manual Alpine MRP-F240 (English

1

EspañolFrançaisEnglish

R

•OWNER’S MANUAL

Please read this manual to maximize your enjoyment of the outstanding

performance and feature capabilities of the equipment, then retain the

manual for future reference.

•MODE D’EMPLOI

Veuillez lire ce mode d’emploi pour tirer pleinement profit des

excellentes performances et fonctions de cet appareil, et conservez-le

pour toute référence future.

•MANUAL DE OPERACIÓN

Lea este manual, por favor, para disfrutar al máximo de las

excepcionales prestaciones y posibilidades funcionales que ofrece el

equipo, luego guarde el manual para usarlo como referencia en el futuro.

MRP-F240

4/3/2 CHANNEL POWER AMPLIFIER

MRP-T220

2/1 CHANNEL POWER AMPLIFIER

CONTENTS

WARNING……………………………………………………… 3

CAUTION ………………………………………………………. 4

INSTALLATION ………………………………………………. 5

CONNECTIONS ………………………………………………. 6

CONNECTIONS CHECK LIST…………………………….. 8

SWITCH SETTINGS ………………………………………. 10

SYSTEM DIAGRAMS …………………………………….. 11

SPECIFICATIONS ………………………………………….. 15

ACCESSORIES

• RCA Cover . ………………………………………………… 1

• Machine Screw …………………………………………… 2

• Self-Tapping Screw …………………………………….. 4

• Insulation Tube (for Power Supply/

for Speaker Output) ……………………………… 1 SET

• Speaker Input Connector ……………………………… 1

TABLE DES MATIERES

AVERTISSEMENT ……………………………………………… 3

ATTENTION………………………………………………………. 4

INSTALLATION …………………………………………………. 5

CONNEXIONS …………………………………………………… 6

LISTE DE VERIFICATION DES CONNEXIONS …………. 8

REGLAGES DE COMMUTATEUR ………………………… 10

DIAGRAMMES DU SYSTEME ……………………………. 11

SPECIFICATIONS …………………………………………… .. 15

ACCESSOIRES

• Couvercle RCA ……………………………………………… 1

• Vis à métaux…………………………………………………. 2

• Vis autotaraudeuse ………………………………………… 4

• Tube d’isolation (pour alimentation/

pour la sortie de haut-parleur) ……………………. 1 JEU

• Connecteur d’entrée de haut-parleur …………………….. 1

ÍNDICE

ADVERTENCIA ……………………………………………….. 3

PRUDENCIA ………………………………………………….. 4

INSTALACIÓN ………………………………………………… 5

CONEXIONES ………………………………………………… 6

LISTA DE VERIFICACIÓN DE CONEXIONES ………… 8

AJUSTES DEL INTERRUPTOR ………………………… 10

DIAGRAMAS DEL SISTEMA …………………………… 11

ESPECIFICACIONES ……………