If you have installed a new set of aftermarket speakers and a 4 channel amplifier to go with them, you want to ensure the settings are setup correctly. If its not setup right the first time, you will never get the full potential of your car audio system, regardless of how expensive your car speakers are or how much sound deadening material you have applied. The car stereo processes the music and pushes it into the car amp to the connected speakers. The car amp has various settings such as a crossover to ensure that the right frequencies are going to your speakers. The last thing you want is have sub bass frequencies going to your mids and high speakers. Today you will learn all of the different important factors to tune a car for mids and highs to get the best possible sound for your car audio system.
Tuning the gain control
Most people mistaken this for a volume control. In fact the main reason why this is placed onto the car amp is to match it with the RCA voltage coming down the cables from the stereo. If this is setup to high, your mids and highs will sound distorted and clip at high volume levels. Now you not going to have all the high end tools such as a oscilloscope at home, so we would suggest it would be best to use your own sense using your ears.
1) Play a song through your car stereo.
2) Go to the back of the car and turn down the gain on the amp, but not completely a bit more than half way down.
2) Turn the volume to almost maximum on the car stereo and back it down until you hear any kind of distortion coming from your front and rear speakers.
3) Now head back to the amp, using a flat head screwdriver slowly increase the gain stopping straight away when you hear any distortion coming into place.
Turn on the High Pass Filter
This basically allows the bass frequencies to be blocked out from the door speakers. This is essential because they are not designed to really reproduce low deep bass that a subwoofer is made capable of playing due to having a larger cone area. On most amps it is switchable and gives you the option to adjust what frequencies you want it to start block the lower sound of the spectrum.
1) Turn the flickable switch into the 'HPF' setting on the amp. This will active the filter.
2) Now it is usually adjustable right from 80 HZ to 200 HZ on most. The recommended setting for enabling the high pass filter is around 80 HZ. This is because anything below than that is supposed to be for a subwoofer to handle. Then you would set the LPF on the bass amp to 80HZ and below so it only plays bass and the higher frequencies above that the mids and highs take over and come in to place. Setting it up this way will ensure that your car audio system attempts to play audio right through the frequency range and not create a gap between leaving some sound out.
1) Turn the flickable switch into the 'HPF' setting on the amp. This will active the filter.
2) Now it is usually adjustable right from 80 HZ to 200 HZ on most. The recommended setting for enabling the high pass filter is around 80 HZ. This is because anything below than that is supposed to be for a subwoofer to handle. Then you would set the LPF on the bass amp to 80HZ and below so it only plays bass and the higher frequencies above that the mids and highs take over and come in to place. Setting it up this way will ensure that your car audio system attempts to play audio right through the frequency range and not create a gap between leaving some sound out.
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