need amp help

[thecommykid]

hey what one of these 4 channel amps would you pick cheers i was thinking of the cobalt amp which is 150 watt x4 with built in x overs

Car Amplifiers

[flossy.08]

for price and preformance
i would chose the cadence 4 channel


so you can wire your 6x9s into it ...
there a good amp i had on in my first commodore b4 it go stolen

[StoneX]

hey what one of these 4 channel amps would you pick cheers i was thinking of the cobalt amp which is 150 watt x4 with built in x overs

Car Amplifiers

Pick for what reason? 4 speakers? 2 speakers and sub? 2 subs? What model speakers/subs?

[thecommykid]

i want to power alpine type s splits and type s 6x9 with the amp if that helps cheers

[Philthy]

The cadence is probably your best bet there in terms of power for type s's, but the kicker one would probably be pretty good as well.

[thecommykid]

my type s splits need 80 watt rms if i use an amp with 100 watt rms will it do any damage to the speakers thanx

[Philthy]

No, as you won't be listening to them flat out all the time with the gain flat out.
It's better to go with an amp thats rated a bit higher than the speakers as then it won't be working as hard to produce the required power

I thought those splits would be more like 60wrms than 80 (thats what I get for not double checking). To get the most out of them you might want to spend a bit more than just those basic amps from JB

[thecommykid]

ok thanks heaps for your help i know what i have 2 do now cheers

[thecommykid]

ok im tossing up between the responce 4ch amp from jaycay or the Alpine MRP-F600 im willing to pay the extra for the alpine if its going to be a better amp choice but i have heard it uses a bit of battery power is that true any help will be much appreciated cheers

[shiftySLE]

any stereos will use more battery power, you can go a bit extra and get a good battery like an optima or something, capacitors are good too because they store power and draw from them and then slowly charge from the battery. I've always use orion, alpine, MB Quart and soundstream stuff so i would definately say Alpine amp. they dont have such a well known name for nothing, just check out the serious stereo comps. Also youv'e gone halfway with the Alpine speakers so keep going for the good stuff and you'll end up with a top system. Last thing too, dont go cheap with the wiring, stingers always a good start, it DOES affect sound quality a lot

[StoneX]

any stereos will use more battery power, you can go a bit extra and get a good battery like an optima or something, capacitors are good too because they store power and draw from them and then slowly charge from the battery.

You need to research basic electrics a little bit... Caps charge and discharge FAST

[theSeekerr]

You need to research basic electrics a little bit... Caps charge and discharge FAST

Which is of course the whole point.

What a lot of people seemingly fail to realise is that the amps have a bank of capacitors in the powersupply already, so the only time another capacitor is useful is when those are sized inadequately. As a result, the capacitor should be as close to the amp as possible, practically right on the power terminals, or it'll have no benificial effects, and all the detrimental effects the experienced car audio folk around here will tell you about. At the end of the day, stiffening up the rest of your power supply, with a good battery and alternator, will have far more benefit than a cap.

It's important to get good quality cable to wire it all up, but that doesn't mean it has to be expensive. Nearly all copper used in cables is over 99% pure anyway. Despite what the manufacturers will tell you, doping it with silver, titanium, beryllium, gold or any other precious or fancy sounding metal will make no difference to how it sounds. Neither will the insulation, despite the golden ears who will tell you that teflon makes it sound "thin" (or grainy, or harsh) and PVC "muddy" and that the best cable is hand crafted in cotton sleeves. It makes NO difference at all, and people invoking quantum physics, the skin effect or "science can't explain everything" are, at best, unscrupulous. See also Penny Arcade! - A Meditation On Value

[thecommykid]

cheers 2 every one who helped im gunna go 4 the alpine i wanted that one but i thought if theres gunna be no difference then why not save some money thanks heaps now all i need is if any one sees a good deal on the Alpine MRP-F600 let me know please cheers

[shiftySLE]

You need to research basic electrics a little bit... Caps charge and discharge FAST

so you are just proving my point, when you drain power from the battery at a fast rate, the alternator just cant recharge it fast enough. Aftermarket stereos drain massive amount more than what the original electrical system is designed for. Caps charge from the battery fast and yes they drain fast with high output amps, but then they recharge quickly again and so on. I had an optima yellow with 750cca with 2 x 1 farad caps and i did notice the quality increase after i had them put in.

[StoneX]

I wasn't arguing with you, just hoping you'd give the correct info next time. Seems to be a common problem on this forum.

Also, the cap is charged by the alternator when the car is running. It's supposed to help stabilse the voltage around the alternator voltage, not the battery voltage. If your electrical system is at the battery voltage with the car running, you have problems.