So recently I decided to embark on this journey that is car audio and I've come to a little bump in the road: it's not sounding how it should (at least I think). Amp/Sub-wise everything sounds GREAT, got it professionally installed and "tuned" today - this is where I think they missed it though. The mid/high-end isn't where I was expecting it to be, often sounding distant and low, and sometimes bass isn't really hitting/sounds floppy. Should I upgrade my headunit? Will using a RCA splitter suffice? I need help.
Here's my setup:
HU: Pioneer DEH-X3600UI
(only has 2 pre-outs: Front | Rear/SW)
Fronts: Alpine S-S65C
Rears: Pioneer TS-6965R
Front/Rear Speaker Amp: Pioneer GM-D8604
Subwoofer: Alpine SWE-10S4
Subwoofer Amp: Alpine MRV-T501 specs
I have the front speakers (the tweeters are connected to the passive crossover of the woofers) wired to Channel A and the rears wired to Channel B of the Pioneer Amp, with only 1 RCA going from Channel A to the Front L/R of the HU, and then I have the Alpine amp RCA going to the Rear/SW L/R of the HU. It's currently running at 2-channels, should it be at 4?
Should I get a new headunit so I can run another set of RCAs going from Channel B of the Pioneer to the HU, or would I be okay using a RCA splitter the exisiting pre-outs be in Front or Rear?
Also, can someone help me with what settings I should be using for tuning on both the HU and the Amps? HPF/LPF/Gains/Bass Boost/SLA/EQ?
My current HU is sort of weird, it has a Rear/Rear mode, Rear/Sub mode, and a Sub/Sub Mode. I currently have it at Rear/Sub The sub setting has three things that I can tweak: a frequency (I'm guessing LPF), a range that increases volume that goes from -19 - +6 (I'm guessing this is gain), and then -12 / -24 (dB?).
I know this an awful lot of information but I just want to make sure I get it down and make this system sound as best as it can. Appreciate any help and anyone that can clarify what I should be doing and how to tune.