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Installation Guide for MB QYUART models including: RAl-150.2, 2 Channel Car Amplifier, RAl-150.2 2 Channel Car Amplifier, Car Amplifier, Amplifier
MB Quart RA1-280.4 Reference Series 4-channel car amplifier — 50 watts RMS x 4 at Crutchfield
MB Quart RA1-280.4 Reference 280 Watt 4 Channel Amplifier
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MUSIC. DEFINED.
Quick Start Installation Guide
RAl-150.2 RAl-280.4 RAl-300.1 RAl-750.1 RAl-710.5
Before you start
I ·
CAUTION
I ·
Many new and factory radios require a reset code when disconnected from battery power. This is an anti-theft feature . Before unplugging power, you must determine if your radio/source unit requires a reset code . Check the operation
manual for your vehicle or contact the dealer.
Congratulations on your choice of a MBQuart amplifier. This "Quick Start Installation" guide is meant to help you "hook up" and play music. For more detailed information , on system setting , speaker and subwoofer configuration and full specifications by model please visit our website at www.MBQuart.com
...
Power cable size
It is critical to use the proper power and ground cable. Select the size listed here for your amplifier model. Always use high quality copper cable.
Model RA1-150.2 RA1-280.4 RA1-300.1 RA1-750.1 RA1-710.5
Fuse Size
20a External 40a External 40a External 80a External 80a External
Cable Size
eo
Power cable size and fuse size based on a 17ft power (B+) (OFC) cable length and 18-inch ground (OFC) oxygen free cable.
Any other lengths used please consult a certified professional installer.
Installation
Place terminal in a secure position so that it won't accidentally contact the negative battery post
fJ ·.
.
Run Cables
Properly route power, speaker and RCA cables through the vehicle.
0 Mount Amplifier
Choose a mounting location that will provide adequate air ventilation. Mount the amplifier to a secure surface. Do not mount the amplifier upside down.
fl ·Chassis Ground
-!
The chassis ground connection is critical to the performance of the amplifier. Choose a location that is close to the amplifier. Completely scrape away the paint and use a nut and bolt if possible. DO NOT USE AN EXISTING FACTORY BOLT!
EJ Negative Power
. Connection
Attach the chassis ground cable to the amplifier negative terminal. It is important to make sure this connection is very tight.
mRemote Turn-on Connection
Attach the remote turn on wire to the amplifier remote output of the source unit.
0 Positive Power
Connection
Attach the main power cable to the amplifier +12V. The cable must run directly to the battery and be properly fused and be very tight.
[) Signal Input Connection
Connect the RCA cables to the INPUT connectors.
Turn the LEVEL control completely counter-clockwise to minimum.
INPUT
LEVEL
0
Connect the power cable to the positive battery terminal. The power cable must be fused within 18 inches of the battery terminal.
h Be prepared to disarm your vehicle's alarm and
m. .
to enter your radio / source unit code.
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Negative Batt,ery )!.I
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Re-connect the negative battery terminal making sure it is securely tightened .
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Common System -S-e-tu-p-----------------
0 CH1 0
(i) CH2 0
CROSSOVER MODE
~
Set INPUT MODE switch to 4CH. Set CH3&4 LOW PASS MODE.
Set INPUT MODE switch to 4CH. Set CH3&4 LOW PASS MODE.
SUBSONIC
FREQUENCY
SUB SONIC
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LOW PASS
FREQUENCY
.S .
SOHz 2SOHz
Set INPUT MODE to SCH. Set CH1 &2 and CH3&4 CROSSOVER switch to HP.
Setup
fl
Open Control Panel
To gain access to the RA1 amplifier series top mount setting control panel carefully remove the four screws and lift the face plate up.
When you're finished with the control panel mindfully put the face plate back together with the four screws. Make sure not to over tighten.
Settings
The illustrations below describe the various controls. Refer to the illustration that matches your amplifier.
© LEVEL Adjustment
The level control purpose is to match the output of your source signal to the amplifier. Refer to the section C for detailed instructions.
@ X-OVER Switch
This switch will set the amplifier to have a full frequency output or to filter out high or low frequencies.
@ Frequencies Adjustment
The Low Pass Filter will cut off the frequencies above the setting. The High Pass Filter will cut off the frequencies below the setting.
© SUBSONIC Switch
The Subsonic Switch will cut off the frequencies below the setting.
® A BASS BOOST
The Bass EQ control will increase the power output at 45Hz for more pronounced bass. Exercise caution when using this control. Increase the level in small
amounts until distortion is noticed , then back off a little.
RA1-300 .1 / RA1-750.1
RA 1-150.2
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X·OVER
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RA 1-280.4
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X·OVE~
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HPF LPF FULL
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2
RA1-710.5
This is a critical step to insure your amplifier is properly adjusted to match the signal output level of your source unit.
THIS IS NOT A VOLUME CONTROL!
. .
MIN MAX
1. If possible, with the source unit off, confirm that the primary volume control is turned down (counter clockwise).
2. Turn on the source unit (CD, or MP3 player). Re-confirm that the volume is turned down. Make sure the source unit controls; balance, fader, bass and treble are all set to center or "O" adjustment. Make sure that the green LED on the end of the amplifier is illuminated.
3. Play a clean musical selection of which you are very familiar. CD is preferred. Do not use radio signals for level setting. Hit play and start turning the volume of the source unit up.
4. Stop increasing the source unit volume when you reach 3/4 (about 75%) or until you hear speakers begin to slightly start producing distortion.
5. Increase the amplifier gain (clockwise) until distortion is heard, then back the level down (counter clockwise) until the distortion is eliminated. Small adjustments may need to be made to balance the levels of multiple amplifiers.
m
Remote Level Control
Some models include a bass remote. Avoid adjusting the bass remote while operating vehicle.
REM turn on SIGNAL SENSE ON, High level
Turn on Mode input DC turn on
REM TURN ON
~
DC SENSE ON
REM TURN ON/ DC SENSE ON SWITCH There are two methods of switching the amplifier on and off. Select the appropriate position suited for your application.
REM TURN ON This will turn on the amplifier when a + 12v switched power typically from a source unit, is connected to the Amp Turn on - BLUE wire on the main power connection harness.
DC SENSE The DC SENSE is for use with the source units that do not offer RCA outputs.
A
NOTE - If the RCA's are plugged into the amplifier and the TURN ON MODE is in the DC ON position, the amplifier will NOT turn on. Please re-read this document or hire a professional installer.
CJ@ MBQuart.corn #MUSIC DEFINED
WARRANTY Maxxsonics USA Inc. warrants this product, to the original consumer purchaser, to be free from defects in material and workmanship for a period of one (1) year from the date of purchase. Maxxsonics USA Inc. will, at it's discretion, repair or replace defective products during the warranty period.Componentsthat prove to be defective in materialsand workmanship underproperinstallation and use must be returned to the original authorized Maxxsonics USA Inc. retailer from where it was purchased. A photocopy of the original receipt must accompany the product being returned . The costs associated with removal, re-installation and freight are not the responsibility of Maxxsonics USA Inc. This warranty is limited to defective parts and specifically excludes any incidental or consequential damages connected therewith . To view the full warranty, please visit the website.
MBQuart products are designed and engineered in the USA by
MAXXSDNICg
www.maxxsonlcs.com
MBQ RA1 QSG 01 - rev1
BO2820
MB QUA RTI.
Reference RAl-280.4 280 Watt 4-Channel Amplifier
English
Spanish
Model
Modelo
1-0hm
l Ohmio
2-0hm
20hmio
4-0hm
40hmio
Frequency Response
Respuesta de frecuencia
Signal to Noise Ratio
Senalar a la Proporci6n del Ruido
THO% Variable Hi-Pass Variable Low-Pass
La Deformaci6n Arm6nica total% La variable de Pasa Alto La variable de Pasa Bajo
Bass Boost
Empuje Bajo
Specifications Subject To Change Without Notice
French
Model
l Ohm
20hm
40hm Reponse de frequence
a Signaler la Proportion de Bruit
La Deformation Harmonique totale% La variable Haute Passe Bas-Passe variable Poussee Basse
RAl-280.4
N/A
4x70w 4x50w 10-35kHz
l0ldB .09% 50-250Hz 50-250Hz 0-9dB
RA1-280 4
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Made in China
RA1-280.4
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#MUSIC DEFINED
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M R ~ h DESIGNED AND ENGINEERED IN THE USA
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