Need help?Do you have a question about the Pioneer GM-42A and is the answer not in the manual?
Provides powerful sound with reduced distortion and improved frequency characteristics.
Protects the high power IC from overcurrent and heat generation using three built-in circuits.
Prevents irritating popping noise when power is turned on or off.
Allows selection between booster and RCA pin jack inputs according to your car stereo system.
Speakers must be high power type (over 30W) with 4-8 ohm impedance. Incorrect types can cause damage.
Instructions on setting the input selector for either RCA pin jacks or regular car stereo connections.
Guidance on adjusting the gain control for optimal output level, especially with systems not using RCA pin jacks.
Illustrates the wiring connections for combining the unit with a car stereo that has RCA pin jacks.
Details on connecting the blue lead to the car stereo's system control terminal for auto-antenna relay.
Shows the wiring connections for using the unit with a regular car stereo (without RCA pin jacks).
Advice on using supplied parts, secure installation, avoiding driver interference, and consulting dealers.
Step-by-step guide and diagram for mounting the unit on the car's parcel tray.
Instructions and diagrams for installing the unit securely under the car dashboard.
Precautions for installing on a car mat, avoiding water and driver interference, and securing cords.
Instructions on using magic tape to secure the unit, including removing oil paper from the back.
Details on using a mounting angle with specific screws, washers, and drilling for installation.
Caution against battery overdischarge from prolonged operation at high volume when the engine is not running.
Instruction to replace the fuse only with the type stipulated on the fuse holder.
Recommendation to dust heat sinks occasionally to prevent clogging and ensure proper cooling.
Advice to contact a dealer or service station if the unit does not operate properly.
Details on power source voltage, grounding system, and maximum current consumption.
Specifications for the unit's dimensions (W x H x D) and its weight.
Information on maximum and continuous power output, and acceptable load impedance.
Technical specifications for frequency response and signal-to-noise ratio.
Details on distortion levels and input level requirements for RCA and Booster inputs.
To Next Page
General