Car Amplifier Amp Gain Setting Chart

Set the source unit volume to 3 4 of full volume.
Car amplifier amp gain setting chart. The amplifier is usually an aftermarket part that is installed trunk of a car or the rear of a truck. This is based on a hypothetical 100 watt channel amplifier. Setting the amplifier s gain is an important step to achieve the most performance as well to protect your equipment. You can ensure the amplifier s gain is correctly set for the stereo by matching the amp s input level with the stereo s output level.
Specific target voltages for applicable jl audio amplifiers are included in charts below. This must be due to the low input impedance of the scope giving unrealistic output from the amp. With your amplifier s gain controls still all the way down turn the receiver s volume up to full or until the music sounds distorted. You may manually enter the gain setting input voltage and speaker load.
Using the chart below determine the target voltage for input sensitivity adjustment according to the nominal impedance of the speaker system connected to the amplifier outputs. Use the same 1000hz tone as you used with the head unit. There will be a knob that labeled gain turning down the gain means that the amplifier is not amplifying the signal coming in from the stereo head the part mounted to your dash. This will allow for reasonable gain overlap with moderate clipping at full volume.
Turn the gain on your amplifier all the way down. Adjust the amplifier s gain setting in a progressive manner while playing the test track. Properly setting the gain on the amplifier enables peak performance while reducing the likelihood of speaker or amplifier damage at high volume. I don t have a dummy 2 ohm load rated for that kind of power.
When setting the gain of my amp i m targeting 30vp p for a 450w output on my 2ohm sub. This calculator will show you how the gain settings control the output of the amplifier. For steps 4 through 10 while you re setting the amplifier s gains it is best to play the loudest passages of your song selection set the receiver s fade control all the way to the front speakers. Tuning your amplifier s gain setting.
Use the same 40hz tone as you used with the head unit. An oscilloscope with probes or clip connectors. Jd amplifiers rd amplifiers vxi amplifiers mvi amplifiers. Car subwoofer with integrated amplifier car audio amplifier diagram how to install a car amp.
The gain setting is the amount of input voltage which will cause the amplifier to reach maximum power. The gain setting for my amp to get 30v on my multimeter gives me about 80v on my scope. The tools required are as followed. The following article describes the amplifier level setting process for most car audio amplifiers regardless of brand.
Use these links to learn about the unique process specifically for. Car stereo amplifier circuit. When the speakers connected to the amplifier begin to distort slightly reduce the gain setting. Car amp installation requires that all sorts of panels be removed and that various wires be run all over the car.