Quote:
Originally Posted by pizzachicken
Thank you for this post, it helped me tremendously when I did my sub/amp install a couple weeks ago.
By any chance do you know if the stock EQ (if any) is applied before or after the amp signals? I'm not heavily knowledgeable in audio tuning, just basic wiring for sub. The t-tap connectors I had were too big to splice into the the thin Head unit -> Amp wires, so I ended up tapping into the Amp -> sub wires.
I've since not been fully satisfied with the unbalanced output, as if there's a cutoff on the lower sub frequencies. Didn't know if it's stock EQ thing or I'm expecting too much from slapping in a sub without a DSP. Hoping you may have some insight before I dig back into the wiring.
|
I am not sure about if there is a high pass filter for the subs but I wouldn’t be surprised. The underseats subs are very poor in low frequencies, they are better mid-bass and that’s how they are also called sometimes.. Everything below 40-50Hz should be handled by a separate trunk sub. That leaves the question how the signal for the subs is altered by the amp.
What I do know is that if you have a separate amp in the BMW stuff, the Headunit output is flat and al equalizing dsp’ing is handled by the amplifier. How it is equalized, that is a black box. The only codeable parameters are the car model, depending on the car model BMW has tuned it, whatever that is.