Audio Tuning / Gain Setting Question
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4th Gear
Joined: Jun 2008
Posts: 8
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From: Michigan
Audio Tuning / Gain Setting Question
So I watched the stickied video of how to set your amp gains with an oscilloscope, and with setting the volume on your headunit to 75% max, is that really the best practice here? What is the thought process behind this, because once you go over 75%, with your amp gains set for the recommended voltage, you will start to see clipping and start to introduce distortion, and that can blow your speakers.
I have the Soundstream headunit and Volunteer Audio claims that the unit has a clean signal all the way up to 100% volume, but with my setup, and testing with the 1KHz -5db file, I am clean up to 94% volume at the recommended voltage (40) for my SD 800.4 amp.
I have the Soundstream headunit and Volunteer Audio claims that the unit has a clean signal all the way up to 100% volume, but with my setup, and testing with the 1KHz -5db file, I am clean up to 94% volume at the recommended voltage (40) for my SD 800.4 amp.
Stellar HDF Member
Joined: Jul 2016
Posts: 2,210
Likes: 668
From: Andover, MN
75% is a general recommendation since there are all different kinds of headunits.
Your setup sounds about right with SD amps. Clean out of HU is not the same signal when coming out of an amp. I've seen a couple GTS radios (clean with 2 open spots) ran though SD amps and HKI mini, can not get clean over 5 open spots. No matter what you do.
I have not tested, but I would guess if you ran a, lets say, Hertz or JL amp off Soundstream HU, you could get clean at 100% volume.
But... you are doing it the correct way: measuring accurately with the proper tools.
Your setup sounds about right with SD amps. Clean out of HU is not the same signal when coming out of an amp. I've seen a couple GTS radios (clean with 2 open spots) ran though SD amps and HKI mini, can not get clean over 5 open spots. No matter what you do.
I have not tested, but I would guess if you ran a, lets say, Hertz or JL amp off Soundstream HU, you could get clean at 100% volume.
But... you are doing it the correct way: measuring accurately with the proper tools.
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