broncoupe

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

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

Get a Beer I will explain it completely cause i think we are on the same thinking will post pictures tomorrow which will make it all clear I think the CC1 did a great job because the front end sounds so balanced what concerned me was that 1 amp would be louder than the other as by using the DD 1 plus the gain would be higher on the amp that distorted at 32 because the distortion light would come on later and therefore once you add overlap also broncoupe

so CC1 is used to volt match is this correct ?

System 2 x 4 channel Amps bridged to run 2 x 3 ways in each front door So i am running 1 amp left door 1 amp right door i used DD1 to find distortion point on 1 amp it was 32 0f 35 LH channel ( Alpine Double Din unit in defeat mode ) other amp only 27 of 35 RH channel So there's my problem is this correct solution use 27 as distortion point then set 10% overlap at LH channel amp use CC1 to set other amp RH channel to get both amps and therefore left and right channels in balance what i find confusing is this does the DD1 use the distortion point as the start of its overlap calculation which is why i have gone for using the CC1 as this i'm thinking this will sync the other amp thanks