Optimus XL-50 User Manual

Optimus XL-50 User Manual

Trunk-mount stereo amplifier

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XL-50 Trunk-Mount Stereo Amplifier
(120-2013)
Your Optimus XL-50 High-Power Trunk-Mount Stereo Amplifier produces a
total of 50 watts to give added punch and power to your vehicle's existing
autosound system.
The amplifier produces up to 25 watts per channel of clean, powerful sound
at all audio frequencies with minimum distortion.
autosound system's low-level or speaker-level outputs to this amplifier.
Its features include:
14K Gold-Plated Speaker Terminals - designed for low impedance, high
conductivity, and minimum corrosion, to provide the highest
signal transfer and lowest sound distortion.
High- or Low-Level Input Signal-Compatible - accepts either high-level
Input Level Control - lets you adjust the level of the audio signals that
Automatic Power Switching - can automatically turn the amplifier on or off
Power Indicator - lights when power is supplied to the amplifier.
Short Circuit Protection - distorts the amplifier's sound if any output
Auto-Off - protects the amplifier by temporarily shutting down if it gets
too hot, an output channel shorts, or it detects an input
overload.
the problem is corrected.
Features
(speaker) or low-level (preamplifier) input signals, to
match your stereo system's output for the best
performance.
enter the amplifier.
when you turn your autosound system on or off
(depending on how you hook up the amplifier).
channel shorts, alerting you to turn off the
autosound system.
The amplifier restarts automatically when it cools or
Faxback Doc. # 40181
You can connect your

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Summary of Contents for Optimus XL-50

  • Page 1 (120-2013) Features Faxback Doc. # 40181 Your Optimus XL-50 High-Power Trunk-Mount Stereo Amplifier produces a total of 50 watts to give added punch and power to your vehicle's existing autosound system. The amplifier produces up to 25 watts per channel of clean, powerful sound at all audio frequencies with minimum distortion.
  • Page 2: Supplied Hardware

    XL-50 Trunk-Mount Stereo Amplifier (120-2013) Preparation Faxback Doc. # 40182 SUPPLIED HARDWARE Your amplifier comes with the following items. sure you locate everything before you store or dispose of the packing materials. Fuse 7.5A Power Wire (Red) (1) Ground Wire (Black) (1)
  • Page 3: Installation Order

    Lets you drill mounting holes without damaging other vehicle components. Allows enough space around the cooling fins for proper airflow and cooling. Lets you easily see the amplifier's POWER indicator. Warning: The amplifier gets very hot while it is on. Do not touch the amplifier or place flammable objects near it while it is on.
  • Page 4: Before You Make The Connections

    Note: For easier installation, mark each wire you plan to connect with the name of the terminal you will connect it to. BEFORE YOU MAKE THE CONNECTIONS The supplied connection cables include all the lead wires you need to connect the amplifier to ground, power, and your existing autosound system. Important: Do not cut these wires.
  • Page 5: Connecting Inputs

    Connect the black ground wire's other end to a chassis ground, such as a metal bolt attached to a metal part of the vehicle's frame. Be sure the bolt is not insulated from the chassis by a plastic part. Use a screwdriver to connect the spade end of the supplied blue/white wire to the amplifier's REM (remote power) terminal.
  • Page 6: Low-Level Inputs

    Caution: You must connect a separate wire to each speaker terminal as described in the following procedures. Do not use a common wire or chassis ground for any speaker connection. Notes: We recommend you use 16- or 18-gauge marked or color-coded wires to help you correctly connect the speakers to your amplifier.
  • Page 7: High-Level (Speaker Wire) Inputs

    jack to the amplifier's LOW INPUT RIGHT jack. HIGH-LEVEL (SPEAKER WIRE) INPUTS If your autosound system does not have low-level line out jacks but has only speaker outputs, connect your autosound system's speaker outputs to the amplifier's HIGH INPUT jacks. Note: A floating ground connection lets the amplifier provide more power to each speaker, but requires that you connect a separate wire to...
  • Page 8 is properly connected and working, follow the instructions in "Mounting the Amplifier." Mounting the Amplifier Once you verify that the amplifier is connected properly, follow these steps to mount it. Disconnect the cable from the vehicle's negative (-) battery terminal. To make mounting more convenient, temporarily disconnect the amplifier's connections (ground, primary power, remote power, your autosound system's input, and speakers).
  • Page 9 XL-50 Trunk-Mount Stereo Amplifier (120-2013) Operation Faxback Doc. # 40183 Turning on the Amplifier The amplifier automatically turns on a few seconds after you turn your vehicle's ignition switch to ACC or ON or turn on your autosound system, depending on how you wired the system.
  • Page 11: Troubleshooting

    (120-2013) Troubleshooting Faxback Doc. # 40184 We do not expect you to have any problems with your Optimus XL-50 High- Power Trunk-Mount Stereo Amplifier, but if you have a problem, this chart might help. If not, take the amplifier to your local RadioShack store for assistance.
  • Page 12 An output channel might have shorted. Take the amplifier to your local RadioShack store. The amplifier detected an input overload. Reduce the autosound system's volume. Power problem. Check the amplifier's and autosound system's fuses and replace them if necessary. Distorted sound. The amplifier might be Reduce your autosound receiving too much...
  • Page 13: The Fcc Wants You To Know

    (120-2013) Care and Maintenance Faxback Doc. # 40185 Your Optimus XL-50 High-Power Trunk-Mount Stereo Amplifier is an example of superior design and craftsmanship. The following suggestions will help you care for your amplifier so you can enjoy it for years.
  • Page 14 Caution: Do not use a fuse with ratings other than those specified here. Doing so might damage your amplifier. Replacing the SFE-Type Fuse Disconnect the cable from the vehicle's negative (-) battery terminal. Push together and twist the fuse holder's parts on the red power cable until they spring apart.
  • Page 15 XL-50 Trunk-Mount Stereo Amplifier (120-2013) Specifications Faxback Doc. # 40186 10% THD Output Power @ 14.4 VDC 1 kHz......25 Watts Frequency Response........20-20,000 Hz (+/-3 dB) Input Impedance..........11.5 kOhms Input Sensitivity (for 10% THD Output Power) Low Input............150 mV High Input............2.5 V Power Supply Voltage....DC 14.4 V Negative Ground (10.5 - 16 V)

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