ShadeTreeMechanic Posted March 18, 2017 Report Share Posted March 18, 2017 (edited) Does the cc1 measure amplifier output? Edit: my bad I just watched the video. I never knew that the cc1 had another function. So you would use the cc1 to turn the gain down on the amp that is turned up. Also when you find the max clean output from the head unit then leave it there as a reference point for the gain settings for all the amps. Maybe I misunderstood but it sounded like you were adjusting the head unit volume when you were adjusting the amp gains. Edited March 18, 2017 by ShadeTreeMechanic Quote 91 C350 Centurion conversion ( Four Door One Ton Bronco) 250A Alternator (Second Alternator Coming Soon) G65 AGM Up Front / Two G31 AGM in Back Pioneer 80PRS CT Sounds AT125.2 / CT Sounds 6.5 Strato Pro component Front Stage CT Sounds AT125.2 / Lanzar Pro 8" coax w/compression horn tweeter Rear Fill FSD 5000D 1/2 ohm (SoundQubed 7k Coming Soon) Two HDS315 Four Qubes Each 34hz (Two HDC3.118 and New Box Coming Soon) Link to comment Share on other sites More sharing options...
audiofanaticz Posted March 18, 2017 Report Share Posted March 18, 2017 First make sure both amps gains are turned all the way down, crossovers on the amp(s) and radio all set to fullpass, and any eq set to flat if your testing output of the headunit through the amp! Otherwise you will have mixed output voltages. In your case, I would test the ends of the RCAs for the max volume of the headunit using 0db tone (40hz for subs, 1khz for mids/high). Plug your rca cables in again, then set the gains of those 2 amps at -5 or -10db (40hz for subs, 1khz for mids/high). If one of those 2 amps is still putting out more voltage than the other goto your amp that is putting out less power, take your cc-1 and calibrate it to that amp, than move your cc-1 over to the louder amp and adjust the gain down until it is shown good on the cc-1. You should then be good to go with both amps putting out the same power. 1 Quote Link to comment Share on other sites More sharing options...
06RTCharger Posted March 18, 2017 Report Share Posted March 18, 2017 11 hours ago, broncoupe said: unless i'm wrong we are all going in different directions according to SMD this is correct way to set up All connection and using the SMD disc as per instruction manual 1 - DD1plus connected to output of Amp turn up headunit until distortion light comes on OK but normally it would be a stereo 2 channel or 4 channel amp So you now have distortion point say 29 of 35 from headunit Now according to Rockford who SMD support you should add 10% of overlap to the amp this definitely helps with the power output of the amp and normally that is setup down But in my setup i have used 2 amps so 1 for Left channel 1 for right channel so i now repeat the procedure above only problem on this amp DD1plus shows distortion at 32 of 35 if i now add 10% overlap this amp will be much louder than the other because put simply the gain is turned up this is why i think the correct thing to do here is use the CC1 to match the outputs What does ur headunit outputs/rca's clip at?? Meaning before/without amps. I still dont get why ur adjusting ur amp settings by turning up the headunit. Maybe thats some kinna different setup ive never looked into. Quote Link to comment Share on other sites More sharing options...
06RTCharger Posted March 18, 2017 Report Share Posted March 18, 2017 I Retract everything i said lol. Page 7 of the manual. It was something i never looked into. Quote Link to comment Share on other sites More sharing options...
ShadeTreeMechanic Posted March 18, 2017 Report Share Posted March 18, 2017 Now I'm going to read page 7. Quote 91 C350 Centurion conversion ( Four Door One Ton Bronco) 250A Alternator (Second Alternator Coming Soon) G65 AGM Up Front / Two G31 AGM in Back Pioneer 80PRS CT Sounds AT125.2 / CT Sounds 6.5 Strato Pro component Front Stage CT Sounds AT125.2 / Lanzar Pro 8" coax w/compression horn tweeter Rear Fill FSD 5000D 1/2 ohm (SoundQubed 7k Coming Soon) Two HDS315 Four Qubes Each 34hz (Two HDC3.118 and New Box Coming Soon) Link to comment Share on other sites More sharing options...
broncoupe Posted March 18, 2017 Author Report Share Posted March 18, 2017 (edited) Thanks everyone for ideas Im english and i like to really understand what Im doing for times like this over here in England there is a lot of BS spoken This system is small by USA standards but massive by English this the system Headunit Alpine Double Din Front Drivers door 2 x Blam 6.5 mid Bass 2 x Blam 3" mids Front Passenger Door 2 x Blam 6.52 mid Bass 2 x Blam 3" mids Windscreen pillars Custom builds 1 x Blam 2" tweeter 1 x Blam 3" mid Front Passenger Footwell 10" Diamond Subwoofer Rear Drivers Door 2 x Blam 6.5" mid Bass Passenger Rear Door 2 x Blam 6.5" mid Bass Rear most pillars x2 Custom Builds 2 x Blam 2" Tweeters 2 x Blam 3" mids Boot Area 2 x Kicker 15" Subwoofers Amps 3 x Blam 1100 watt RMS x 1 ohm for Subwoofers 3 x Blam 4 Channel amps 150 RMS @ 3 ohm load the Alpine headunit on RCAs outputed more on 1 channel so with measurement taken at Blam Amplifier speaker terminal with amp gains on minimum and flat undistorted Lh 29 (7.6 volts) Rh 32 (8.8 volts) this difference was enough to make Rh channel noticeably louder that was my problem From what i worked out and tell me if i'm wrong the DD1 plus calculates overlap from the confirmed distortion point your saying SO What this is where i caused myself a problem I bridged 2 Amps to the front doors so 1 amp became left side 1 became right This is what made the imbalance in the Alpine Headunit a problem Solution CC1 synced everything to spot on balance thanks again Edited March 18, 2017 by broncoupe 1 Quote Link to comment Share on other sites More sharing options...
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