PowerBass XMA-1205D Owner's Manual
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PowerBass XMA-1205D Owner's Manual

Xma mini class d mono amplifier
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XMA-1205D
XMA-2000D
XMA MINI CLASS D MONO AMPLIFIER

Owners Manual

Please read through this manual to familiarize yourself with your new amplifi er. Should your PowerBass
Xtreme mobile amplifi er ever require service, you will need to have the original dated receipt.

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Summary of Contents for PowerBass XMA-1205D

  • Page 1: Owners Manual

    XMA MINI CLASS D MONO AMPLIFIER Owners Manual Please read through this manual to familiarize yourself with your new amplifi er. Should your PowerBass Xtreme mobile amplifi er ever require service, you will need to have the original dated receipt.
  • Page 2 In the interest of safety, PowerBass USA highly recommends listening at lower volume levels when driving.

  • Page 3: Technical Features

    Fan Cooling (XMA-1205D only) 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 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.

  • Page 4: Installation Precautions

    Fan (XMA-1205D only) Fig.1 Mounting the Amplifier Due to the high power output of the PowerBass Xtreme Class D 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.

  • Page 5: Mounting Location

    NOTE: Make sure not to block the cooling fan (XMA-1205D only) The amplifier should be protected from exposure to moisture and direct sunlight. The compact size of the amplifier allows greater flexibility in mounting.

  • Page 6: Control Panel Layout

    CONTROL PANEL LAYOUT Fig.2 Panel Layout NOTE: Panel Layout and Controls may differ by model. 1. Line INPUT (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 output of 250mV is required for proper operation.
  • Page 7 5. BRIDGED CONNECTION Port For externally bridging two of the same model PowerBass Xtreme Class D amps together. Connect the INPUT of the MASTER to a suitable source via a standard telephone wire with RJ11 (4-pin) modular connectors to the jack on the SLAVE amplifier.
  • Page 8 17. REM (Remote Input Connection) All PowerBass Xtreme amplifiers can be turned on by applying 12 volts to this terminal. This can be found on the rear of the source unit in the form of a remote output. If this is not available you can wire to the ACC position on the key.
  • Page 9 Your PowerBass Xtreme Class D amp will draw large levels of current, so use the largest gauge power/ground cable as possible. Using too small of power cable can result in unnecessary over-heating of the amplifier, distortion at high volume levels and might even cause the thermal protection circuitry to shut-off the amplifier.

  • Page 10: Power Wiring

    POWER WIRING BATT+ (Power) This amplifier should be wired directly to the vehicle battery using the appropriate size cable. Start at the vehicle battery and run the power cable through to the amplifier. Avoid running the power cable over engine components and near heater cores.

  • Page 11: Fuse Requirements

    FUSE REQUIREMENTS While the panel on your PowerBass amplifier may use one or more fuses, these do nothing to protect the vehicle from a dangerous short circuit. It is absolutely vital that the main power lead to the amplifier(s) in the system be fused within 18-inches (45cm) of the connection to the vehicle battery.

  • Page 12: Rca Interconnect Wiring

    RCA INTERCONNECT WIRING Fig.5 Low Level Input using RCA Low Level Input - Choose the correct length and style of RCA interconnects for your needs. Always use high quality RCA audio cables (not supplied) for signal connections—those with multiple layers of shielding or a twisted pair variety for better noise rejection.
  • Page 13 The balanced input of this XMA series amplifier can receive either low RCA or high speaker lead level signals from the source unit (radio). A high level signal can be run from the source units speaker lead outputs to the low level RCA amplifier inputs via the PowerBass HL-AD2 wiring harness (available separately as shown below).

  • Page 14: Set-Up Adjustments

    SET UP ADJUSTMENTS GAIN Fig.7 GAIN Control Input GAIN Adjustment This control allows you to match the input level of the amplifier to the output level of your head unit. Matching the input can be accomplished in four simple steps: Make sure that the remote level control is not plugged in until after the master gain control is set.
  • Page 15 25Hz 250Hz Fig.9 Low Pass Control LPF (Low Pass Filter) Adjustment The crossover frequency adjustment filters out frequencies that you don’t want your subwoofer(s) to repro- duce. Using the LPF control, adjust the Low Pass Frequency to limit the amount of mid range you want going to your woofer(s).
  • Page 16 Fig.11 Connection with RJ12 Jack REMOTE LEVEL Controller Connection Your PowerBass Xtreme Class D amp includes a Remote Level control module. It uses standard telephone wire and telephone RJ12 connectors. To connect the Remote Level Control to the amplifier, simply insert one end of the 6-pin telephone plug into the REMOTE LEVEL port.

  • Page 17: Speaker Wiring

    SPEAKER WIRING AND CONFIGURATIONS Speaker Load Keep in mind your PowerBass Xtreme Class D amp is a high power amplifier and not a high current amplifier. In other words it requires a minimum impedance of 1 ohm. Unless you are externally bridging two XMA amplifiers in which case the minimum load is 2-ohms.
  • Page 18 XMA-1205D SPEAKER OUTPUT CONFIGURATIONS 1-OHM STABLE DESIGN Minimum Impedance Load is 1-Ohm 1. A SINGLE VOICE COIL SUBWOOFER SPEAKER Fig.12 A Single Voice Coil Subwoofer (1~4 ohm) 2. TWO SINGLE VOICE COIL SUBWOOFER SPEAKERS (Note: Don’t connect speaker impedance under 1 ohm)
  • Page 19 OUTPUT 1 and OUTPUT 2 are internally paralleled, thus a minimum impedance of 2 ohms is required when using more than one of the outputs. If you are unsure of calculating impedance loads please consult your PowerBass Xtreme dealer before damaging the amplifier.
  • Page 20 Class D model amplifiers. Improper wiring can cause severe damage to BOTH the woofer and the amplifier. Detailed wiring diagrams are supplied with all PowerBass woof- ers. IF YOU ARE NOT EXPERIENCED OR UNCOMFORTABLE READING THE WIRING DIAGRAMS CONSULT YOUR AUTHORIZED POWERBASS DEALER BEFORE YOU ATTEMPT TO WIRE THE SYSTEM.
  • Page 21 DUAL LINK AMP TO EXTERNAL BRIDGING The PowerBass XMA Class D Mono amplifiers are equipped with a special Dual Link circuitry that allows you to link (strap) two like amplifiers together and double the output power at a minimum 2-ohm load. External Bridging two amplifiers (must be the same models) can be done via the MASTER and SLAVE switches, BRIDGGED CONNECTION cable and proper speaker wiring.
  • Page 22 When configured for Dual Link (external bridging) the minimum impedance load increases from 1-ohm to 2-ohms. DO NOT install or use these amplifiers by wiring woofers rated at 2-ohm or lower in parallel to achieve a 1-ohm (or lower) total impedance. Fig.17 Dual Link minimum 2 ohm load The mono woofer must be connected between the speaker positive (+) terminals of the two amplifiers and use at least 12-gauge speaker wiring.
  • Page 23 XMA-1205D/2000D Click Subsonic Bass Position Pass Freq Freq Freq 33Hz 10Hz 46Hz 33Hz 10Hz 46Hz 33Hz 10Hz 46Hz 33Hz 10Hz 46Hz 33Hz 10Hz 46Hz 40 CLICK PRECISION 33Hz 10Hz 46Hz 33Hz 10Hz ROTARY CONTROLS 47Hz 34Hz 10Hz 47Hz 34Hz 11Hz...

  • Page 24: Recommended Wire Sizes

    Miscellaneous: ______________________________________________________ This manual is the exclusive property of PowerBass USA, Inc. Any reproduction of this manual, or use other than its intentions is strictly prohibited without the express consent of PowerBass USA, Inc. © Copyright 2015 PowerBass USA, Inc.

  • Page 25: Troubleshooting Tips

    NOTE: If the Status L.E.D. is activated and glows RED with no speakers connected to the amplifier, and all the power connections are correct, this would indicate an internal problem with the amplifier. Contact PowerBass USA or your local dealer.
  • Page 26 SPECIFICATIONS FOR XMA CLASS D MONO AMPLIFIERS PowerBass Xtreme Class D Model XMA-1205D XMA-2000D Power Output @ 14.4 VDC Input 1 Ohms RMS at THD <0.4% 1200 x 1 2000 x 1 2 Ohms RMS at THD <0.4% 800 x 1 1400 x 1 4 Ohms RMS at THD <0.4%...
  • Page 27 Please call (909) 923-3868 for PowerBass Customer Service. You must obtain an RA# (Return Authorization Num- ber) to return any product to PowerBass. The RA number must be prominently marked on the outside of the shipping carton or the delivery will be refused. Please pack your return carefully; we are not responsible for items damaged in shipping.
  • Page 28 PowerBass Xtreme – A division of PowerBass USA, Inc. 2133 S. Green Privado – Ontario, CA 91761 Tel. (909) 923-3868 – Fax (909) 923-8048 www.powerbassusa.com...

This manual is also suitable for:

Xma-2000d

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