Hi to everyone, this is my first post on this site. I just have a few questions that im hoping that some people can answer for me as it will help me a great deal.
I'm just going to do a Audio install in my car (focus hatchback) and I thought I would come on here and ask the question to make sure Im not going wrong anywhere.
My plan.....
custom sub box (not doing this my self but im having it made by a carpeter i know) not sure if I should get a ported one made or not??..
2 * 15" subs.....Fli subs each 400rms peak power 1200 each
specs;
* 15" FLI subwoofer
* RMS Power: 400 watts
* Peak Power: 1200 watts
* Sensitivity: 90db
* Frequency Response: 20 - 850 Hz
* Impedance: 4 Ohm
* Mounting Diameter: 350 mm
1 * KENWOOD KAC 9104D MONO 1channel car amp amplifier 1800W ( To power the subs )
specs;
# Rated power (4 ohm, 20 ~ 200 Hz, 0.5% THD) @ 14,4V : 500W RMS
# Rated power (2 ohm, 100Hz, 0,9% THD) @ 14,4V : 900W RMS
# Rated power (1 ohm, 100Hz, 1,0% THD) @ 14,4V : over 900W RMS
# Maximum output power @ 14,4V : 1800W
# Aluminium Die-cast heat-sink with Aluminium dress-plate
# Power MOSFET Switching Power Supply
# 1 ohm load capability
# Gold plated RCA Line in & output
# Gold plated terminals
# Plug-type Speaker Level Input
# Dual Mono Drive
# Copper EE-Core Power Transformer
# Toröidal Noise Suppression Filter
# Ground Isolation Circuit
# Variable built in low-pass filter (24 dB/oct.): 50 ~ 200 Hz
# Infrasonic filter (18dB/oct.): 0/15/25 Hz
# Variable Bass Boost (Variable gain): 40Hz, 0 ~ 18 dB
# Variable input sensitivity: 0.2 ~ 5V
1 * Fli Loaded 900s 900 4 Channel 900w ( to power 2 sets of 5*7's)
specs;
Type: 4/3/2 Channel.
Class: AB.
4 Ohm Stereo: 4 x 100W RMS.
2 Ohm Stereo: 4 x 115W RMS.
4 Ohm Mono: 2 x 225 RMS.
2 Ohm Mono: N/A.
Max Power: 900W.
Frequency Response: 20Hz-20KHz.
SNR: 92dB.
THD: 0.2%
Bass Boost: 0-12dB.
HPF: 45Hz-300Hz.
LPF: 45Hz-300Hz.
Input: 2 or 4 Channel.
2 * door speakers Top spec with 90db sensitivity and a massive 300W (150w rms) power output
1 * 2000w Amplifier Wiring Kit
1 * car stereo 2.0 digital power capacitor cap
1 * 5 Meter Clear OFC Speaker Cable 2.5mm2 14 Gauge wires (Got told to use these on the subs)
1 * Pioneer p910bt headunit
My questions are;
I know what size of sub box I need but should I have it ported or just enclosed? if so what sort of size should it be?
For this sort of setup would I neew to upgrade my alternator? (I have stock)
I also got told that I should wire my subs as follows;
possitive from amp to possitive sub 1, negative from sub 1 to possitive sub 2, then negative from sub 2 to negative amp....is this the best way?
How could I find out what sort of gains I should put up on the amps without damaging the speakers or amps?
With the wiring kit I mentioned above I will be wiring it two a splitter with fuses in so i can wire both amps from there....what sort of fuses should I use in the splitter and what size wires should be used to connect each amp?
I have done a setup before But I want to make sure that Im doing it correctly and the best way. If I have missed anything then if you could let me know that would be great.
As I have said I have done an install before but I still feel like a total newbie.
I know I have thrown alot of information in but I tried to cover everything so sorry if most of it is no use...
Thanks in advance for any help thrown my way....