Wattser93 10+ year member
Senior VIP Member
Turn off all the bass boost, turn the gain down, turn the head unit volume down.
Turn on the HU to about 3/4 volume with the gains on minimum. Slowly turn them up. Does it sound like **** right away? If so it could be a few things.
If it sounds clean with the gains low, chances are, they set the gains too high and it's distorting the speakers. If it sounds good with the gains on low, turn up the gains until it starts to sound bad, then lower the gains slightly so it isn't distorted anymore.
If that shop can't set gains then don't spend your money there. Gains are a bit tough to set properly, but any certified installer should be able to.
Turn on the HU to about 3/4 volume with the gains on minimum. Slowly turn them up. Does it sound like **** right away? If so it could be a few things.
If it sounds clean with the gains low, chances are, they set the gains too high and it's distorting the speakers. If it sounds good with the gains on low, turn up the gains until it starts to sound bad, then lower the gains slightly so it isn't distorted anymore.
If that shop can't set gains then don't spend your money there. Gains are a bit tough to set properly, but any certified installer should be able to.