Seperate power

[325is_MadBimmer]

So i got a alpine MVR-F450 amp and am wondering how to divide up the power. Like lets say i want more bass going to my sub and almost no bass going through my speakers?

once again....i am such a

[KenC]

What's the wattage rating on it? RMS into 4 ohms.

What are you using it to drive? 2 mids and a sub?

[325is_MadBimmer]

What's the wattage rating on it? RMS into 4 ohms.

What are you using it to drive? 2 mids and a sub?

see i am total noob, kinda dont even know what you are talking about. :(

I am going to power one 10" sub, 2 - front 5.25 components, and 2 - rear 5.25 2-way components

here is what I got off crutchifield.com on the amp

Key Features:

50 watts RMS x 4 + 200 watts RMS x 1 at 4 ohms
60 watts RMS x 4 at 2 ohms + 200 watts RMS x 1 at 4 ohms
120 watts RMS x 2 + 200 watts RMS x 1 in bridged mode
2-, 3-, 4-, or 5-channel output





please dont make fun of me

[KenC]

run the 4 50watt channels to your 5.25" speakers and then run the 200watt mono channel to your sub.

[325is_MadBimmer]

thanks man :up:


If it wasnt for you and couple other people in the ICE forum, then noone would get questions answered.

[KenC]

No prob. I do what I can. Post more questions if you have them.

[Mike 91 318ic]

I agree use a 4 channel amp to run the seperates and a dedicated amp for the subs, don't bother with a 5 channel amp. Also use good wiring and a distribution block with built in fuses and a stiffening cap is also a good idea.

M

run the 4 50watt channels to your 5.25" speakers and then run the 200watt mono channel to your sub.

[Mystikal]

I agree use a 4 channel amp to run the seperates and a dedicated amp for the subs, don't bother with a 5 channel amp. Also use good wiring and a distribution block with built in fuses and a stiffening cap is also a good idea.

M

Huh? Ken never said anything about not using his new 5-channel. And why not? 5-channels are a great way to save space and simplify wiring.

[NC325iC]

wait your using one amp to power everything
your sub is gonna be tryin to sing the songs and your speakers are gonna be way overbassed

[KenC]

wait your using one amp to power everything
your sub is gonna be tryin to sing the songs and your speakers are gonna be way overbassed

99.9% of the 5-channel amps out there are made to run an entire system. Thus, there will be an active low-pass crossover on the 5th channel for the sub. Likewise, there will be high-pass (or should be) active crossovers for the 4 mid speakers.

[Mike 91 318ic]

I know Ken didn't say to not use a 5 channel amp, "I" said don't use one... It's better to have two amps. If yo need me to explain why then I will.

M

[KenC]

I know Ken didn't say to not use a 5 channel amp, "I" said don't use one... It's better to have two amps. If yo need me to explain why then I will.

M

Please explain.

Xtant makes some nice 3 and 5 channel amps. PG used to make some KILLER mid+sub combo amps (read: Route 66 and Frankenstein; if you're old school car audio).

As long as you have a cap for your system, 1/2 farad at least. Your subs should run fine. Most combo amps have separate power supplies too.

[Mike 91 318ic]

First off I'm sure there are some good 5 channel amps but I'll bet they're very costly... I haven't seen any 5+ channel amps that are high current and 1-2 ohm stable. If you want to run a small single voice coil sub and 4 speakers then a 5 channel will work. If you want to run some decent DVC subs and have clean power with high s/n ratios and low thd .007 and under then you're better off getting two amps. Also subs amps have larger transformers than 5 channel amps do and will last longer as they don't have to work as hard. As for the wiring it's not a big deal. As for size/space 5 channel amps are huge, probably close to the same size as two decent amps. In my case space was an issue, I couldn't have an amp that was very long, I could only use two short amps.

M

[KenC]

5-channel amps are large, and costly. But they're no more expensive than two separate amps. All of the 5 channel amps I've seen are 2-ohm stable in all channels, especially the 5th one. Thus running a sub with two 4 ohm voice coils would be no problem. The old PG special edition amps were 1-0hm (and I *think* some were even 1/2 ohm stable).

If you're giong to run a competition or high-fidelity system, you probably want to go with separate amps. But if you're just running 4 coaxes and a sub, the 5-channel will do the trick.

[Mike 91 318ic]

Wow I didn't know they were stable at or below 2 ohms, that's good to know. Back when I first got into car audio in the late 80's Rodek was the king, do you remember those amps? They looked like a large silver brick with cooling fins and had a 4 or 6 gauge power wire :) I think this was just before phoenix gold hit the scene. I know PG used to be good, are they still? I used to have some kick ass systems back then, but now my priorities have changed, I have a house to pay for and a family to support. I decided to do up my car stereo as a kind of a mid life crisis thing, I'm refusing to get old. I think once you say "turn it down" you're old.

M