Mr.Angel

the filter (bass, treble,) on HU is set to flat like on the middle bar, and the LP filter is set to max, so really I'm doing what the book says but the 40hz or 1khz doesnt pop up unless the gain on the amp is turned up

Where?, and do you have any solutions?

What am I doing wrong? Trying to measure headunit thru an amp, Mono amp: MRV500 So track 1, I do the steps but the 40hz doesnt pop up on max volume, Only Thing I see is the distortion light pop up??? SAME With track 2, the 1khz or 40hz, doesnt pop up HOWEVER: I notice when I turn the gain up on the amp (testing to see) when measuring the headunit, The 40hz does pop up? Am i doing something wrong because going through the book steps, the only light that pops up is the distortion unless I turn the gain up then it turns on. I stick the red on the positive wire and the black on the amp ground wire So what I did was just ignore it and set my gains on for the subwoofer using Track 5 (40hz -10db), So the 40hz or 1khz the light didnt pop up from the 1st step of measuring the headunit, is this Okay to set my gains like this? I even turned the amp bass boost almsot all the way up bcus it wasnt hitting as hard The distortion light pops up on regular music so I don't know what I'm doing wrong

the thing is the headunit doesnt display the volume level, so I won't know what volume level it distorts at, any suggestions?

thing is I have 2 mono amps so I would need 2 bass boost knobs sadly

btw when tuning, do you set your bass boost on the amp all the way up (or preference) or leave evrything flat ?

I use a line output converter, so only thing connected to the amp is the sub and rca, so if i were to disconnect the speakers I would have to do it by opening the panels apart right?

It's just a bit difficult to use it,. For one, factory speakers so it plays the tracks and the sound is annoying when I try to find where it distorts at. the only thing connect to the amp is just the sub wires along with Rca for the line out converter

Factory headunit with the idrive (navigation screen)

Car: BMW 3 series 2 mono Amps: alpine mrv500, 2 subwoofers Problem: Theres no volume display on the headunit, How do I properly set my gains without knowing the volume level it distorts at? explain in details please. Question #2, I Listen to music on the Aux cord so do I need to play the DD-1 playlist off my phone rather than the Cd?

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Okay so set gains with max volume?, it distorts close to max volume and when I put the black and red harness to the speaker output in the amp, the 40hz light domt pop up for track one or 2

hello I recently purchased a distortion detector and the problem is I have a BMW 3 series and it does not show the volume level on the screen ●How would I use this properly without knowing the acutal volume level that its at?

Theres only a sub connected to the amp, which I do unhook, it's just the factory speakers that play the noise from the track which i don't know how to unhook unless i open the door panels and do it like that, But my main question is, how do I even set gains properly if my headunit does not show the volume level ?

hello I recently purchased a distortion detector and the problem is I have a BMW 3 series and it does not show the volume level, How would I use this properly without knowing the acutally volume level that its at?, it's the navigation headunit type, Plus if I remove the subwoofer speaker wire from the amp, the door speakers still play loud from the Cd tracks is that normal ? becuase in YouTube videos i see online i dont hear any sound while they set their gains. 2 Amps: Mrv500, do I set the LP filter back to 80hrz after its tuned? 2 subwoofers: Pioneer TS-W309D4 12" Champion Series Subwoofer with Dual 4 Voice Coil