Power bass XL-2305MX User manual

power bAss :: r
CAR AUDIO
'
-. I . - .. I - . •
$
.,,. •. ,.~ ;~•1 - ~· .· -:_
/I ,· - ~. //If' /.
' ' I. J
~ ....J • r~ · .
l •
~
ATTENTION !!I
READ BEFORE INSTALLING
IMPORTANT : This amplifier is designed tor operation in vehicles with 12-volt Negative ground electrical svstems univ.
Tech Support
8:30am-5:30pm Pacific Time
[phone]
www.powerbassusa.com
REMOTE TURN ON
IONX6SSl:lry
On/Off Switch
Thank you for your purchase of ourPowerBass
XLAmplifier. The small size of these amplifiers
makethem a perfect solution for UTV's, golf carts,
motorcycles and other Power Sportvehicles.
In order to ensure properoperation it is highly
recommended to wire both theGround (GND) and
Positive (BATT+) cablesfrom youramplifier to the
battery directly.
Due to the extensive use of aluminum frames and
insulators on these type of vehicles, it may be
difficult or impossible to get the amplifier to
operate properly by using a chassis ground.
A POOR GROUND CAN RESULT IN ONE OR
MORE OF THE FOUOWING PROBLEMS :
• Cause the amplifier to cut out intermittenUy
• Cause the power cables to overheat and possibly
melt the terminals on the amplifier
• Create engine noise
• Damage the radio
Xla...ln201•

ower
X
XL-2305MX
XL-4255MX
XL POWERSPORT FULL RANGE MX AMPLIFIER
Owners Manual
Please read through this manual to familiarize yourselfwith your new amplifier. Should your PowerBass
Xtreme mobileamplifiereverrequire service, you will need to have the original dated receipt. ·

ower~
X
AMPLIFIERS
Thank you and Congratulations
Thank you for your decision to purchase a PowerBass USA Xtreme mobile amplifier! Our new mini amplifiers
are the result of extensive engineering, testing, and bullet proof construction. Their versatility enables compat-
ibility with optional signal and audio processors. These high quality MOSFET amplifiers may be configured to
allow maximum flexibility in designing different types of speaker systems.
nb~==
~'···
FULL RANGE CLASS D MINI AMPLIFIERS
The PowerBass XL Series are high quality MOSFET amplifiers that are capable of running a system full range,
or they may be selected only to power subwoofers. It is important that you closely follow the wiring instructions
contained in this Owners Manual so that you get the most from your PowerBass Xtreme mobile amplifier.
tJ. Caution tJ.
High powered audio systems in a vehicle are capable of generating higher than " Live Concert " levels of sound pressure. Continued exposure
to excessively high volume sound levels cou ld cause hearing loss or damage . Also , operation of a motor vehicle while listening to audio
equipment at high volume levels may impair your ability to hear external sounds such as horns , warning si gnals , or emergency vehicles-thus
creating a potential traffic hazard . In the interest of safety, PowerBass USA high ly recommends listening at lower volume levels when dr i ving.
3

TECHNICAL FEATURES
• IPX 67 Water Resistant Sealed Design
• Aluminum Diecast End Caps with Integrated Input/Output Connections
• FRO (Full Range Class- □) Multi-Channel Technology
• International Rectifier Chip Set
• Conformal Coated PC Board to Resist Moisture, Dust and Extreme Heat
• AUX Input Accepts MP3, iPod® or Portable Source Device
• Wrap-around Aluminum Heatsink Shell
• Ultra Low Current Draw
• High Damping Control Circuit
• High Efficiency SMD Circuit Technology
• 4-Layer Copper Plated PCB
• Digital Sound Optimization Circuitry
• Quiet Switching
• Bass EQ Circuitry Centered at 45Hz (+/- 18dB )
• High Current Voltage Ripple Rejection Circuitry
• Virtual Silence Turn On/Off Mute Circuit
• Advanced Protection Circuitry
• Low Level RCA and High Level Speaker Inputs
• Wired Remote Level Control (XL-2305M)
• AUX Output (3.5mm)
•;Pod® is a registered trademark of Apple
FRO-FULL RANGE CLASS D TECHNOLOGY
This amplifier represents the very latest in Class D technology. The XL Series uses the new IR ® (International
Rectifier) platform which has been under development for the past several years. IR®, a leader in PWM circuit
design, has worked in conjunction with PowerBass engineers to produce more stable power output, minimal
RF interference and improved sound quality.
The benefits of this cooperative effort are many and include improved temperature, frequency , voltage regulation
and drive capability to name a few.
The PC board features a conformal coating that resists moisture, dust and extreme heat. Combine that plus
their small size and these amplifiers are perfect for many Powersport applications including UTV, golf cart and
motorcycle and Watersport vessels.
The result to the user is a all around improved product that will provide years of listening enjoyment.
InternationaI
I"R Rectifier
THE POWER MANAGEMENT LEADER
IR ® Is a registered trademark of International Rectifier Corporation.

INSTALLATION EXPERIENCE
Installation of PowerBass mobi le amplifiers requires detailed knowledge of electronics wiring and proper
speaker impedance . We strong ly recommend installation by an authorized PowerBass dealer. This Owners
Manual only provides general installation and operation instructions. If you have any reservations about
your installation skills, please contact your local PowerBass dealer for assistance.
IMPORTANT : This amplifier is designed for operation in veh i cles with 12-volt Negative ground
electrical systems only.
PREPARING FOR INSTALLATION
NOTE : The tools listed below may be required for basic i nstallation
• An electric drill with bits
• Philips head and standard screwdrivers
• Wire strippers
• Crimping tool
• VOM (electronic volt ohm meter)
• Heat shrink tubing and heat gun
• Soldering iron
• Electronic (Rosen not Acid Core) Solder
INSTALLATION PRECAUTIONS
NOTE: Proceed only if you are a qualified installer, otherwise; see your Authorized PowerBass
Dealer to professionally install this amplifier. Always wear protective eyewear when using
tools.
• Turn off all stereo and other electrical devices before you begin.
• Disconnect the negative (-) lead from your vehicles battery.
• Locate all fuel lines, brake lines, oil lines, and electrical cables when planning the install.
• Make sure there is at least 2-inches (5 cm) around the air vents on the amplifier.
• When connecting ground points, make sure all paint is carefully scrapped away from the auto body
and contact is made with bare metal.
• Use a utility knife to trim away fabric from hole locations before drilling or cutting.
• When running power cables through sheet metal, be sure to use grommets to properly insulate the
metal edges from the wire insulation.
• If possible, use tubing through grommets.
WARNING : Check your vehicle's owner's manual before disconnecting the battery. Disconnecting
the battery on some vehicles may require an anti-theft code when reconnecting the battery and
require the on-board computer to be reset at the dealership. Check with your local dealer if you
are uncertain.
5

MOUNTING THE AMPLIFIER
f
Fig.1 Mounting Amplifier
To keep your PowerBass Xtreme amplifier running at top performance, choosing the proper location is of
utmost importance. Both Thermal and Overload protection are built in.
In the event of overheating, the amplifier will turn off and only restart when cooled. For this reason the
amplifier should be mounted in a location which will allow air to circulate freely. The compact size of the
PowerBass XL Series amplifier allows greater flexibility in mounting.

MOUNTING LOCATION
The XL Series amplifiers are IPX67 rated and feature a conformal coating app l ied to the PC board . This coating
makes them resistant to water, dust, and quick submersion. Care should still be taken to protect the amplifier
from water and find a mounting location that is not likely to get wet. Take care not to mount in a vehicle/vessel
where it can cause interference with the factory installed electronic devices.
The unique wrap around outer shell ( heatsink) allows the XL Series amplifiers to be mounted in spaces with
minimal air flow. It is important that whatever location is selected the amplifier must be mounted securely in a
manner keeps the unit intact even during rough jolts that can occur to the vehi c le / ve s sel.
You may use the amplifier as a template and mark the four screw locations with a felt tip pen . Set the amplifier
aside before drilling . Use caution to make sure there are no objects behind the installation surface that may
become damaged during drilling .
If mounting under a seat, make sure there is at least 1-inch (2 .5 cm ) of space above the amplifier 's heatsink
to permit proper cooling .
The best places to mount your amplifier are: The floor of the trunk , under a seat, on the back of the rear seat or
a storage compartment will air can circulate . For alternate installation locations , please consult your authorized
PowerBass Dealer .
NOTE: Do not use a drill wi th driver bit to mount the a mpl i fier. Excessive force c ould cause
the mounting feet to crack.
* -tt WARNING -
• Do not install in a place where it could injure the driver or passengers if the vehicle
stops suddenly.
• Try to avoid mounting the amplifier on a subwoofer enclosure , as extended exposure ·
to vibration may cause malfunction of the amplifier.
• Don't mount the amplifier so that the wire connections are unprotected or are sub -
ject to pinching or damage from nearby objects .
• The DC power wire must be fused at the battery positive (+) terminal connection.
Before making or breaking power connections at the amplifier power terminals ,
disconnect the DC power wire at the battery end.
• The battery of the car audio system must be disconnected until the entire wiring and
installation is completed.
7

XL-23O5MX CONTROL PANEL LAYOUT
5
4 6
1s:is0
INPUT
O@@O
XL-Jii!305MX
0 2 Channel • full Range Digital 0
OUTPUT POWER
7 8
F ig .2 2-Channel Pane l Layout
NOTE : Panel Layout and Controls may differ by model .
1. Low Level Inputs/Outputs (from left to right)
A. LOW LEVEL RCA Inputs
@
Low Level RCA input that connects to source units with RCA line level outputs. A source unit with a minimum input of 250mV is
required for proper operation. However , this input can accept levels up to 1 OVrms.
B. AUXlnputJack
This 1/8-inch (3.5mm) mini jack can be used to accept an MP3, iPOD or smartphone as the source unit from that devices head-
phone (3.5mm) output.
C. AUX Output Jack
This 1/8-inch (3.5mm) mini jack can be used to connect to multiple MX Series Amplifiers.
D. REMOTE LEVEL INPUT Connector
This is the connector port for the Remote Level Controller. Now the amplifiers secondary gain circuit can be adjusted from the
drivers seat. Please note this is active in all settings HP , LP, FULL.

2. POWER/STATUS Indicator
This clear LED lights Blue when the power is on--0r turns Red constantly when the built - in protection circu i try is activated . Red i ndicates a
problem with the system in relation to the amplifier (See Troubleshooting Tips) .
3. GAIN Control
This control is used to match the input sensitivity of the amplifier to the particular source unit that you are us i ng up to 250mV to 10 volts.
4. X-OVER Switch for LPF/FULUHPF
Activates the built-in electronic crossover network . Works in conjunction with the LPF and HPF adjustable control. When set to FULL t he
amplifier runs Full Range and the electronic crossover circuitry is bypassed.
5. HPF/LPF
This control is continuously adjustable from 40Hz to 400Hz at 12dB per octave when the X-OVER sw i tch is set to LPF (Low Pass Filter ) or
HPF (High Pass Filter).
6. BASS EQ Control
This equalization circuit is used to enhance the low frequency response of the vehicle 's interior . With up to 1 BdB of boost centered at 45Hz ,
the BASS EQ can be adjusted to meet your own personal taste. This is only operational with LPF mode on.
7. SPEAKER OUTPUT
Be sure to observe the correct speaker polarity and follow the speaker wir i ng diagrams found elsewhere in this owners manual.
Grey Wire = Right +
Grey/Black Wire = Right -
White Wire = Left +
White/Black = Left -
8. POWER AND GROUND INPUT Wires (from left to right)
A. Red Wire BATT+ (Power Input Connection)
B. Blue Wire REM (Remote Turn-On Connection)
C. Black Wire GND (Ground Input Connection)
A. BATT+ (Power Input Connection)
This wire is the main power input for the amplifier and mus t be connected directly to the positive (+ ) termina l of the ca r battery .
B. REM (Remote Input Connection)
This wire must be connected to a switched + 12V source. Typically, remote turn-on leads are provided at the sou r ce unit t hat will
turn on and off the amplifier in correspondence with the source . If th is lead is not at the source unit , then as witched + 12V supply
must be used , like the ACC, + 12V.
C. GND (Ground Input Connection)
A good quality ground is required for your PowerBass Xtreme amplifier to operate at peak performance. A short length of cable the
same gauge as your power cable should be used to attach t he ground directly to the chassis of the vehic l e. Make sure that all of
the pain t is sanded or scraped away to ensure a quality ground connection. NOTE: If installing in a boat , UTV or motorcycle
make sure your ground wire is connected to the negative ( - ) terminal of the battery.
FUSE-IMPORTANT
Due to the limited space on the XL amp l ifier chassis they do NOT come with internal fusing! Instead we have inc l uded an in - line fuse holder
that can be connected directly to the BATT+ input on the amplifier . Please note the proper ampere fuse fo r each model are listed below . Never
replace a fuse with a higher rating then what is listed.
XL-2305MX 60A
XL-4255MX BOA
9

XL-4255MX CONTROL PANEL LAYOUT
11 12
F ig.3 4-Chan nelP ane lL ayo ut
NOTE : Panel Layout and Controls may differ by model .
1. POWER/STATUS Indicator
This clear LED lights Blue when the power is o~r turns Red constantly when the built-in protection circuitry is activated. Red indicates a problem with the
system in relation to the amplifier (See Troubleshooting Tips).
2. LOW LEVEL INPUTS/OUTPUTS (from left to right)
A. FRONT low level RCA Inputs
Low Level RCA input that connects to source units with RCA line level outputs. A source unit with a minimum input of 250mV is required for proper
operation. However, this input can accept levels up to 1 OVrms.
B. AUXlnputJack
This 1/8-inch (3.5mm) mini jack can be used to accept an MP3, iPOD or smartphone as the source unit from that devices headphone (3.5mm)
output. When using AUX input, the amplifier must be in 2CH mode.
3. FRONT HPF
This control is continuously adjustable from 40Hz to 400Hz at 12dB per octave).
4. FRONT GAIN Control
This control is used to match the input sensitivity of the amplifier to the particular source unit that you are using up to 250mV to 10 volts.