Quote:
Originally Posted by Maniac0908
Yes, and I believe I can go about this 2 ways. But im not sure which is the best and i need help. Let me tell you what i have and the specs of my equipment.
4channel alpine amp MRP-F300
-50 watts RMS x 4 at 4 ohms (75 watts RMS x 4 at 2 ohms)
-150 watts RMS x 2 bridged output at 4 ohms (4-ohm stable in bridged mode)
-2-, 3-, or 4-channel output
-variable high-pass/low-pass filters (50-400 Hz, 12 dB/octave)
-selectable bass boost (12 dB at 50 Hz)
-subsonic filter (15 Hz, 18 dB/octave for channels 3 & 4)
2 Channel alpine amp MRP-M500
300 watts RMS x 1 at 4 ohms (500 watts RMS x 1 at 2 ohms)
variable low-pass filter (50-200 Hz, 24 dB/octave)
variable bass boost (0-12 dB at 50 Hz)
subsonic filter (15 Hz, 24 dB/octave)
Polk 12" Sub DXi 1240dvc
12" subwoofer with dual 4-ohm voice coils
polymer composite cone with butyl rubber surround
power range: 50-360 watts RMS (180 watts per coil)
peak power handling: 720 watts
frequency response: 20-300Hz
sensitivity: 88 dB
Everything else is OEM. I also added the tweeter to center. And i have the technic harness hooked up and working.
My issues im having are how to hook all this up without putting stress on my amps, blowing the speakers or under powering them.All i want hooked up are the underseats and a trunk sub. Nothing else.
Questions
1. Can I power these with just a 300w 4 channel? or will i need to use my 2 channel to power the sub and my 4 channel to power the underseats?
2. depending on what i do can someone tell me where to put the settings on the amp?
3. On my sub as you can see in the picture its a DUAL 4ohm. how do i hook this up?
Sub
ill gets pics of the settings knobs once i decide which route to go.
THANKS FOR EVERYONE'S HELP! |
The mrp m500 is a mono amp which will work fine for the sub. I would use the 4 channel amp for the front speakers and underseats.
Technic's harness is already designed to add a trunk sub and/or amp the underseat speakers. To amp the front speakers you will need to add a line output converter to the front speaker channels. You would wire it the same way Technic did for the underseat sub channels. You can either get another 2 channel line output converter, or use a 4 channel line output converter to replace the one that came with the harness.
The front channels are obviously used for the front speakers. The underseat signal gets used for both the underseats and the trunk sub. You need to use the RCA pass through on either the 4 channel or mono amp to do this, or RCA splitters if your amps do not have this feature.
A good starting point for crossovers is:
Front-No filter. (The signal is already high passed.)
Underseats-60 hz high pass filter. (The signal is already low passed.)
Trunk sub-60hz low pass filter
You would wire your sub in parallel for a 2 ohm load.
http://davidnavone.com/product/n-rhl...put-converter/
http://davidnavone.com/product/n-rhl...put-converter/
You can find the wiring diagram here.
http://www.e90post.com/forums/showthread.php?t=138949