SCATHED Posted December 17, 2015 Author Report Posted December 17, 2015 The reason people say keep the ground as short as possible is because that statement assumes you are using the frame of the car as a ground, most cars have shitty frames to ground on I think it is best to run a ground to the battery as well, why not? more capacitance is better, always! cars such as big trucks have actual decent frames, but cars mostley have sub frames that are pinchwelded and glued by the time the amp gets the ground. fecupe has a good log on here someone that posts before and after numbers of a few different tricks he used to maximize his spl. Do you have your ground running to the front battery? If so, any ground loop problems?
MADVIBES Posted December 17, 2015 Report Posted December 17, 2015 Ground loops only happen when you have grounds with in the car that have grossly different impedances. running a ground straight to your battery and grounding your headunit to the same place will have zero ground loops. DB DRAG PSYCHLONE PRO 156.3 30 SECOND AVERAGE FO MAX AT 26HZ LEGAL DASH DRIVER DOOR OPEN 158.0@30 HZ MY BEST SO FAR, HOPEFULLY A 160 COME FEBUARY. 156.9@26hz 158.0@30hz
MADVIBES Posted December 17, 2015 Report Posted December 17, 2015 I have my system grounded to the frame engine block alternator and directly to the battery. I am running 24k watts though. DB DRAG PSYCHLONE PRO 156.3 30 SECOND AVERAGE FO MAX AT 26HZ LEGAL DASH DRIVER DOOR OPEN 158.0@30 HZ MY BEST SO FAR, HOPEFULLY A 160 COME FEBUARY. 156.9@26hz 158.0@30hz
SCATHED Posted December 17, 2015 Author Report Posted December 17, 2015 Ground loops only happen when you have grounds with in the car that have grossly different impedances. running a ground straight to your battery and grounding your headunit to the same place will have zero ground loops. my hu is grounded from the factory ground wire, wherever that may come from. I assume the battery.
MADVIBES Posted December 17, 2015 Report Posted December 17, 2015 Ground loops only happen when you have grounds with in the car that have grossly different impedances. running a ground straight to your battery and grounding your headunit to the same place will have zero ground loops. my hu is grounded from the factory ground wire, wherever that may come from. I assume the battery. I dont want it to seem like I am saying if you dont ground everything in the same place you are going to get noise, just saying I think this is the best way, think like a sound system in a boat. DB DRAG PSYCHLONE PRO 156.3 30 SECOND AVERAGE FO MAX AT 26HZ LEGAL DASH DRIVER DOOR OPEN 158.0@30 HZ MY BEST SO FAR, HOPEFULLY A 160 COME FEBUARY. 156.9@26hz 158.0@30hz
MrSkippyJ Posted December 17, 2015 Report Posted December 17, 2015 Here is some info from some of the smartest minds ever when it comes to 12v electronics, specifically dealing with your questions. Snafu Explains when to run a dedicated ground F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69
MotorCityFats13 Posted December 17, 2015 Report Posted December 17, 2015 an aspect that nobody touched on was if you are not running tons of power even the worst frames will work as a ground path with normal results causing only lost money from an added wire you never needed..... most people do not have 1/0 wire trees just sprouting cables to pick at will....
SCATHED Posted December 17, 2015 Author Report Posted December 17, 2015 an aspect that nobody touched on was if you are not running tons of power even the worst frames will work as a ground path with normal results causing only lost money from an added wire you never needed..... most people do not have 1/0 wire trees just sprouting cables to pick at will.... A run of 1/0 cable from my amp to my battery will cost roughly $30 give or take from my supplier depending on how many feet I buy. That's not gonna break the bank but I get your point. All I want to know is if running the ground wire from your amp to your battery up front is good or bad. Forget about distribution blocks and multiple ground runs. I'm talking about 1 piece of cable from amp to battery much like your power wire. I think we've kind of touched on that with the video that was posted.
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