Chris Hammer Posted October 25, 2014 Report Share Posted October 25, 2014 So installing new jbl p660c in a buddies ride and an amp that does 150wrms at 2ohm. I know the jbls take over rated because I had a set and was mean to them..but I was crossed at 80hz. He will be running full range. my question to you guys is if there is a way to adjust gain to only get a certain amount of power after I use my dd1. I want to make it as idiot proof as possible and just get the 90wrms the comps are rated for. Wondering if its possible without something like the amm1 MY BUILD *****http://tinyurl.com/gmcbuild***** Vehicles 2005 GMC Canyon CB1000r - Currently where any future funds are going. (exhasut,bazzaz, ohlins shock, screen, etc.) crf250r - Used to be race bike..now I just trail ride..practice at the track on it. CH80 - Daily beater (when nice weather)best 150$ ever spent. 100+mpg Sold to: Skullz - pstone11 - Leo1103 - Volvo 63' - pavelpardo - imnew59585 Shower farts still piss me off.I think theyre pretty neat. When the water runs down your crack as you let one out... its like shitting in a crockpot. Link to comment Share on other sites More sharing options...
S15_Silvia Posted October 25, 2014 Report Share Posted October 25, 2014 It's probably not possible without use of an AMM-1 or scope to figure out differences in phase angles of the impedance, current, and voltage. AC power is a pretty complex thing. 2016 Subaru BRZ | Sony XAV-AX100 | Rockford Fosgate DSM 4080 & DSM 40ix | On 6/6/2012 at 6:32 PM, 'LZTYBRN' said: 3. Don't put speakers outside the car unless you are the ice cream man. My feedback thread Link to comment Share on other sites More sharing options...
GSanders17 Posted October 25, 2014 Report Share Posted October 25, 2014 I guess you could tune with dd1 and then just turn it down from there. You obviously wouldnt have any clue to power output but it would be safer than leaving it at max with dd1. Link to comment Share on other sites More sharing options...
RainStryke Posted October 26, 2014 Report Share Posted October 26, 2014 You will need to be very conservative with the gain if you really want to idiot proof. Cause the DD-1 will only apply to the settings he has at the moment, so i'd make sure to even play around with setting the gain with the most extreme equalizer settings on the head unit. Link to comment Share on other sites More sharing options...
Broke_Audio_Addict Posted October 26, 2014 Report Share Posted October 26, 2014 Sett with the dd1 so you know where it's distortion free then back it down via the multimeter method. 90 watts at 2ohms would be 13.41 volts ac. Once you do the multimeter method check again with the dd1 to make sure it's distortion free but it should still be clean since you backed the gain down and didn't move it up. Edit- also remember all speakers have an impedance curve so take that into consideration when setting the gain at 2 ohm's, I'd set it at a lower voltage just to be on the safe side. That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals. Link to comment Share on other sites More sharing options...
Chris Hammer Posted October 26, 2014 Author Report Share Posted October 26, 2014 thanks for the suggestions guys. I'll definitely do the equalizer shit just to make sure. He is used to some crappy WalMart coaxs on hu power so even set conservatively he should be impressed. MY BUILD *****http://tinyurl.com/gmcbuild***** Vehicles 2005 GMC Canyon CB1000r - Currently where any future funds are going. (exhasut,bazzaz, ohlins shock, screen, etc.) crf250r - Used to be race bike..now I just trail ride..practice at the track on it. CH80 - Daily beater (when nice weather)best 150$ ever spent. 100+mpg Sold to: Skullz - pstone11 - Leo1103 - Volvo 63' - pavelpardo - imnew59585 Shower farts still piss me off.I think theyre pretty neat. When the water runs down your crack as you let one out... its like shitting in a crockpot. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.