Posted July 21, 20178 yr Trying to get some ideas on what could have caused this . . Installed 2 ppi 900.4s and a taramp 10kw in a vehicle yesterday and tested everything and every this dead quiet. Not a bit of any noise. Later last night we installed a ampere 9k in the vehicle and now im getting sounds through the mids and highs . . Only thing that was done was taking out the taramp, putting in the ampere and installing a new volt meter . . Just trying to get some ideas befor I go into the shop today on What could have cause this when just changing the sub amp
July 21, 20178 yr Author Ill check all the grounds . Didnt mess with any grounds though . Just added another run of power and ground from rear batt to the ampere
July 21, 20178 yr There is a loop...could also be the RCA's grounding of the new amp. Definitely should find it in either a loose connection or a ground.
July 22, 20178 yr Author Well I hooked up an old ground isolator to the sub amp rcas and there is not a peep coming through the mids and highs . . I guess im not understanding something . I dont get why the sub amp would effect the mids and highs amps . There was no sounds coming through the subs just the mids and highs and the sound would go away when I took the rcas out of just the sub amp
July 22, 20178 yr It sounds like the new sub amp created a ground loop sending stray noise interfering with your rca's. With the filter you are now isolating the stray signal (noise).
July 22, 20178 yr I'd remove it and see if you can find the source. Try grounding the amps together and grounding the rca's
July 22, 20178 yr Author Thats what im going to do . A yea its not making the noises now but I dont like having to put that isolator on to get rid of it
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.