Power bass XTA 1000D User manual

XTREME SERIES CLASS D AMPLIFIER

Owners Manual

Please read through this manual to familiarize yourself with your new ampliﬁer. Should your PowerBass

Xtreme mobile ampliﬁer ever require service, you will need to have the original dated receipt.

XTA 1000D

XTA 1500D

XTA 2250D

Thank you and Congratulations

Thank you for your decision to purchase a PowerBass Xtreme mobile ampliﬁer! Our PowerBass Xtreme am-

pliﬁers are the result of extensive engineering, testing, and bullet proof construction. They feature the latest

in D Class microprocessor technology. Their versatility enables compatibility with optional signal and audio

processors. These high quality MOSFET ampliﬁers may be conﬁgured to allow maximum ﬂexibility in designing

different type of speaker systems.

D CLASS BASS AMPLIFIERS

All PowerBass XTA series “D” models are single channel dedicated subwoofer ampliﬁers. Unlike most Full

Range ampliﬁers, these models are designed strictly for low frequencies and are intended only to power sub-

woofers. 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 D Class mobile ampliﬁer.

∆Caution ∆

High powered audio systems in a vehicle are capable of generating higher then “Live Concert” levels of sound pressure. Continued exposure to exces-

sively high volume sound levels will 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 signals, or emergency vehicles—thus creating a potential trafﬁc hazard.

In the interest of safety, PowerBass USA highly recommends listening at lower volume levels when driving.

AMPLIFIERS

TECHNICAL FEATURES

• Mono Block Ampliﬁer for Subwoofer

• Latest Technology D Class Operation

• MOSFET Power Supplies for high power output and best stability into low impedance loads

• Soft Delay Remote Turn On/Off System for eliminating pop noise

• Built-in Fully Adjustable Electronic Crossover Network with Bass EQ

• Self Diagnostic Multi Protection Circuit with LED Indicator for; Impedance Over-load, Speaker Short

Circuit, Thermal Overheating, and DC Output.

• Real 1-ohm Stable Operation with Output Power Increasing

• Heavy-duty Brass CNC Machined Terminal Blocks

• Variable Gain Control

• Dual Link Capability-Strapping (Set-to-Set Bridgeable at 2 ohm)

• Blue Power-on Edge-lit PowerBass Logo

• Wired Remote Gain Control

INSTALLATION EXPERIENCE

Installation of PowerBass mobile ampliﬁers requires detailed knowledge of electronics wiring and proper

speaker impedance. We strongly recommend installation by an authorized PowerBass Xtreme 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.

PREPARING FOR INSTALLATION

NOTE: The tools listed below may be required for basic installation

• 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

INSTALLATION PRECAUTIONS

NOTE: Proceed only if you are a qualiﬁed installer otherwise, let your dealer do it. Always wear protec-

tive 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.

Due to the high power output of the PowerBass Xtreme D Class ampliﬁers, considerable heat may be produced

when the unit is in operation. For this reason the ampliﬁer should be mounted in a location which will allow air

to circulate freely. A clearance of at least 2-inches (5 cm) to all sides of the ampliﬁer is necessary not only for

proper cooling, but also for gaining access to the inputs and other variable controls. Be sure that the power

and signal cable connections can enter and leave the ampliﬁer in a straight line to avoid the risk of kinked

wires causing a malfunction.

MOUNTING LOCATION

Your PowerBass Xtreme D Class ampliﬁer comes with mounting feet that may need to be attached to the am-

pliﬁer prior to installation. Once the feet are in place, use the ampliﬁer as a template and mark the four screw

locations. 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. Remember your car has many hidden electrical

wires and various gas, vacuum and brake lines.

Fig.1 Mounting Ampliﬁer

MOUNTING THE AMPLIFIER

• When connecting ground points, make sure all paint is carefully scraped away from the auto body and

contact is make 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 ***

• Do not install in a place where it could injure the driver or passengers if the vehicle

stops suddenly.

• Upside down mounting will compromise heat dissipation through the heatsink and

could engage the thermal protection circuit causing the ampliﬁer to shut down.

• Try to avoid mounting the ampliﬁer on a subwoofer enclosure, as extended exposure

to vibration may cause the ampliﬁer to malfunction.

• 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 a maximum of 12” from the battery positive (+)

terminal. Before making or breaking power connections at the ampliﬁer power ter-

minals, disconnect the DC power wire at the battery end.

• The battery supply of the car audio system must be disconnected until the entire

wiring and installation is completed.

The ampliﬁer should be protected from exposure to moisture and direct sunlight. The best places to mount

your ampliﬁer are: The ﬂoor of the trunk, under the driver’s seat, or on the back of the rear seat. For alternate

installation locations, please consult your dealer.

CONTROL PANEL LAYOUT

1. LINE OUT (RCA) JACKS

RCA style output jacks allow for unﬁltered signal to be sent to other ampliﬁers or processors. Only one Remote

Gain Control can be used when multiple bass ampliﬁers are connected.

2. LINE IN (RCA) JACKS

These RCA style input jacks are for use with source units that have RCA line level outputs. A source unit with a

minimum of 200mV is required for proper operation. However, this input will accept levels up to 6.5V.

3. GAIN Control

This control is used to match the input sensitivity of the ampliﬁer to the particular source unit that you are

using.

4. SUB SONIC Control

This ﬁlter allows the high pass of frequencies, and is adjustable from 15Hz through 50Hz to provide and extra

level of speaker protection.

5. BASS EQ Control

This equalization circuit is used to enhance the low frequency reaponse of the vehicle’s interior. With up to

18dB of boost centered at 45Hz, the BASS EQ can be adjusted to meet your personal taste.

Fig.2 Panel Layout

2345

13 14

15 16

10 11

REMOTE

LINE OUT LINE IN

OUT

MIN MAX

GAIN BASS EQ

0dB 18dB

SUBSONIC

15HZ 50HZ 50Hz 250Hz

MASTER SLAVE

LPF

0˚ 180˚

PHASE

SPEAKER OUTPUT

DO NOT BRIDGE POWER

FUSE GNDREMBATT+

POWER

STATUS

1 2

XTA1500D

30A 30A 30A 30A

6. LPF (Low Pass Filter) Control

This control is continuously adjustable and varies the crossover point from 50Hz to 250Hz at 24dB per octave.

7. PHASE Control

This variable control can be used to correct “phase” or “time delay” effect in the system by bringing the low

frequency from the rear to the front of the vehicle.

8. REMOTE GAIN Port

This is the connector port for the Remote Gain Control. Now the ampliﬁers output circuit can be adjusted

from the driver’s seat. NOTE: The Remote Gain Control will “max out” at the highest level that the GAIN

Control is set to.

9. MASTER/SLAVE Switch

Two like ampliﬁers can be connected together and bridged into a single 2 ohm (min) load. The level and fre-

quency controls on the SLAVE ampliﬁer will be disabled. Only the ampliﬁer you select as MASTER will control

these functions. Dual Link Power Doubling Circuit increases the output power as follows:

XTA 1000D x 2 = 2,000 watts RMS (2 ohms min)

XTA 1500D x 2 = 3,000 watts RMS (2 ohms min)

XTA 2250D x 2 = 4,500 watts RMS (2 ohms min)

10. SLAVE IN Jack

When strapping two like ampliﬁers together use this jack to receive signal from the MASTER ampliﬁer. When

this is connected all controls will revert to the MASTER ampliﬁer.

11. SLAVE OUT Jack

When strapping two like ampliﬁers together use this jack to send signal to the SLAVE ampliﬁer.

12. SPEAKER Output Terminals

As shown in the wiring diagrams, be sure to observe speaker polarity through the system and speaker imped-

ance. This specially tooled terminal is designed to accommodate up to 10 gauge speaker wire.

CAUTION: Do Not Bridge the speaker outputs on these D Class models, this is already a Mono output!

13. FUSE

For convenience, some Powerbass Xtreme ampliﬁers utilize common automotive ATC type fuses. For contin-

ued protection, in the event that a fuse blows, replace the fuse only with the same fuse value (see speciﬁca-

tions page).

XTA 1000D 30A x 3

XTA 1500D 30A x 4

FUSE-IMPORTANT

The XTA 2250D does NOT come with any internal fusing! Due to the current demands a typical chassis

mounted fuse is not practical. We recommend that you install the correct size fuse/holder combination to the

main power cable within 12-inches of the battery. This will protect your vehicle from ﬁre damage due to a

short circuit to the chassis or vehicle body.

For each XTA 2250D ampliﬁer installed, use 150A ANL type fuse (not included).

14. BATT+ (Power Input Terminal)

This terminal is the main power input for the ampliﬁer and must be connected directly to the positive (+)

terminal of the car battery. This terminal accepts up to 1/0 gauge wire. (see Power Cable Selection Chart for

recommended wire gauge for each model).

15. REM (Remote Input Terminal)

All Powerbass Xtreme ampliﬁers can be turned on by applying 12 volts to this terminal. This can be found

a the rear of the source unit (usually the blue with white stripe wire). If there is not a remote turn on lead

the power antenna lead (usually blue) can be used in its place. If neither of these are available you can wire

this to the ACC (accessory) position of the key. This is a signal that is present when the key is on while not

starting. A 16-18 gauge wire is sufﬁcient to run the REM.

16. GND (Ground Input Terminal)

A good quality ground is required of your Powerbass Xtreme D Class ampliﬁer to operate at peak perfor-

mance. A short length of cable, the same gauge as your power cable, should be used to attach the ground

terminal directly to the chassis of the vehicle. (If a good ground cannot be found the ground connection

must be run directly to the negative (-) terminal of the battery). Capable of handling up to 110 gauge wire.

17. POWER/STATUS Indicator Light

This clear LED lights GREEN for power and normal operation, and lights RED when there is a problem. This

LED will light RED when the built in protection circuitry is activated. This indicates there is a problem with

the system in relation to the ampliﬁer (see Troubleshooting Tips pg. 24).

*** WARNING ***

Disconnect the negative (-) battery terminal before you start any wiring work! The battery of your

car audio system must be disconnected until the entire wiring installation is completed.

Your PowerBass Xtreme Class D amp will draw large levels of current, so use the largest gauge power/

ground cable possible. Do not “starve” your ampliﬁer by using small power cable. Using under sized power

cable can result in unnecessary over-heating of the ampliﬁer, distortion at high volume levels and may even

cause the thermal protection circuitry to shut off the ampliﬁer. Remember, bigger wire is better!

• Use rubber grommets when running cables through any metal or sharp plastic, to prevent accidental

shorting or shearing. Make sure the cables do not interfere with normal operation of the vehicle.

• The audio signal cables (RCA interconnects) should be kept far away from any potential sources of

electrical interference such as electronic vehicle management systems (relays, engine computers etc.)

wiring harnesses, fuel pumps etc.

WIRING AND CONNECTIONS

Power Input Connections

Fig.3 Power Input Connection

This ampliﬁer is designed to work within a 10 to 16.5 volt DC range. Before any wires are connected, the

vehicles electrical system should be checked for correct supply voltage with the help of a voltmeter.

FUSE HOLDER

Battery Within 12”

of Battery

Remote Turn ON

To Power Antenna

Chassis

Ground

(–)

SPEAKER OUTPUT

DO NOT BRIDGE POWER

FUSE GNDREMBATT+

POWER

STATUS

1 2

XTA1500D

30A 30A 30A 30A

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