justcop Posted March 3, 2019 Report Share Posted March 3, 2019 Bought a new head unit. Max volume number is 40. The dd1 is showing distortion at 28 through speaker outputs. It doesn't show any distortion through the rca outputs at 40/max (signal is registering). Is this possible (due to the quality of signal, error, other)? Tried switching up jacks as well. Thank you in advance J Quote Link to comment Share on other sites More sharing options...
CstrokerV Posted March 3, 2019 Report Share Posted March 3, 2019 Yeah it’s possible I had the same issue with my brothers deck since they were factory speakers we just Set the rcas at max and didn’t worry about the factory stuff Quote my build http://www.stevemeadedesigns.com/board/topic/142505-small-build-log-4-dc-lvl3-10s-tl-update-link-to-rebuild/ http://www.stevemeadedesigns.com/board/topic/154258-rebuild-6-lvl3-12s-update-small-video-nothing-spectacular/ new build http://www.stevemeadedesigns.com/board/topic/188181-03-trailblazer-slow-build-8-dc-lvl3-12-m1-motor-m2-parts/ Link to comment Share on other sites More sharing options...
Joshdashef Posted March 3, 2019 Report Share Posted March 3, 2019 Speaker outputs ? Do you mean using the built in Headunit amp? Those all distort we ll before your rca preamp outs distort Quote SMD Tool Map (2022): https://www.stevemeadedesigns.com/board/topic/220267-smd-tool-map-2022/ My Port Size Calculator (in progress): https://www.stevemeadedesigns.com/board/topic/217087-port-size-calculator-in-progress/ Common Port Walls for a Slot Port: https://www.stevemeadedesigns.com/board/topic/217076-common-port-walls-why-it-matters-to-your-box/?tab=comments#comment-3240313 Link to comment Share on other sites More sharing options...
SnowDrifter Posted March 3, 2019 Report Share Posted March 3, 2019 Normal If you're using exclusively RCA outputs, yield to those numbers Else you can do some mix/matching. Use -5db for your HU speaker outputs provided the RCA outputs are clean at the same level w/ -0db, then tune your sub amp at that same volume level with whichever gain overlap is appropriate for your goals 1 Quote ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
justcop Posted March 3, 2019 Author Report Share Posted March 3, 2019 Thanks everyone Quote Link to comment Share on other sites More sharing options...
justcop Posted May 11, 2019 Author Report Share Posted May 11, 2019 I have another question for those that can maybe help. Got my high and mid stage set on a 4x100 channel. Got the undistorted reading from the amp gain about 1/3 turn) at full volume from the head unit(also previously checked for no distortion) . I wanted to turn down the amp sensitivity slightly to match the ac volts / watts for my components. However, the voltage is way over what it should be for the channels. Everything is turned to zero on the HU to get flat signal. For example : used zero db 1k signal test and the voltage is way more then the amp says it produces. Trying to get to about 14.1 volts and the no distortion level is like 24 +-1 volts. Why is this? If a no distortion level on a 100 watt channel is registering 130 to 150 watts. Amp is jl xd400 Quote Link to comment Share on other sites More sharing options...
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