SS 4.520 amp question
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
should be roughly 28.8v AC on front and rear. That is clipping voltage. So back it down to 27vac for safe measure and set your crossover to FP first. If after you get your gains set and you listen to the music at a moderate volume find too much bass (lower end) then flip the FP switch to HP...
also remember on these sony headunits.. with all EQ settings flat, the gains turned down all the way on the amp. if you don't hear distortion when you hit your max volume which is 50 then back it down to 36 and set your gains from there.
also remember on these sony headunits.. with all EQ settings flat, the gains turned down all the way on the amp. if you don't hear distortion when you hit your max volume which is 50 then back it down to 36 and set your gains from there.
Last edited by UltraNutZ; Aug 20, 2013 at 10:39 AM.
Road Warrior
Joined: Jul 2011
Posts: 1,323
Likes: 13
From: Wisco!
should be roughly 32.2v AC on front and rear. That is clipping voltage. So back it down to 31vac for safe measure and set your crossover to FP first. If after you get your gains set and you listen to the music at a moderate volume find too much bass (lower end) then flip the FP switch to HP...
also remember on these sony headunits.. with all EQ settings flat, the gains turned down all the way on the amp. if you don't hear distortion when you hit your max volume which is 50 then back it down to 36 and set your gains from there.
also remember on these sony headunits.. with all EQ settings flat, the gains turned down all the way on the amp. if you don't hear distortion when you hit your max volume which is 50 then back it down to 36 and set your gains from there.
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Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
set your meter to auto AC volts. Disconnect your speakers from your amp completely to do this.
plug in the 1000hz test tone as the sticky suggests eithe rvia CD or iPod or thumbdrive so you have a constant voltage output. Setting amp gains with a DMM and using music is a futile effort and will never be right, needs to be a known frequency test tone for the range your speakers are capable of handling. 1000hz/1khz is a normal test tone for coaxial speaker setup.
Now as the tone is playing through the system with the volume on the head unit at 36, touch the red lead on the meter to the + on your right front speaker output of amp and the black lead to the - on your right front speaker output of the amp. Now turn your front gain control up until you hit 31v and stop. Now without adjusting anything take your leads and move them over to the left front speaker output of the amp. If you have a different reading than the right I usually split the gain setting difference down the middle and subtract it from the 27v setting. Meaning if you have 27v on the right channel and 27.8 on the right channel, then I'll back down the gains to be 26.6v or close to it.
plug in the 1000hz test tone as the sticky suggests eithe rvia CD or iPod or thumbdrive so you have a constant voltage output. Setting amp gains with a DMM and using music is a futile effort and will never be right, needs to be a known frequency test tone for the range your speakers are capable of handling. 1000hz/1khz is a normal test tone for coaxial speaker setup.
Now as the tone is playing through the system with the volume on the head unit at 36, touch the red lead on the meter to the + on your right front speaker output of amp and the black lead to the - on your right front speaker output of the amp. Now turn your front gain control up until you hit 31v and stop. Now without adjusting anything take your leads and move them over to the left front speaker output of the amp. If you have a different reading than the right I usually split the gain setting difference down the middle and subtract it from the 27v setting. Meaning if you have 27v on the right channel and 27.8 on the right channel, then I'll back down the gains to be 26.6v or close to it.
Last edited by UltraNutZ; Aug 20, 2013 at 10:40 AM.
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