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2006-07-10 03:42:17 · 6 answers · asked by thomas g 1 in Cars & Transportation Car Audio

6 answers

Look for this when buying an amp... http://www.crutchfield.com/S-wn5MvZJYp33/popups/cacomp.html

If an amp doesn't have this rating, it may not produce the watts it says it does.


http://spkrbox1.spaces.msn.com/ for real "sound" advice.

Your system won't mean squat without a well designed box to put your subs in. Some manufacturers have recommendations as to dimensions of various types of boxes. It is best to find someone who builds boxes if you go with something other than a sealed box.

You should always match up RMS (Root Mean Square) watts of Subs and amp per channel as well as impedance's(resistances). When a sub has rating of 600 Watts MAX it really has an RMS rating of about 200 Watts RMS. RMS is the nominal wattage your most likely going to get out of it. Remember, a 200 Watts RMS amplifier has more power output than a 200 Watt MAX.


If your amp is rated at 4Ω don't subject it to 2Ω, it will fry.

Here is the formula for subs in parallel:

Z = 1 / (1/sub1 + 1/sub2 + 1/sub3 + ....)

For series, just add them up (sub1 + sub2 + ...).

You can mix and match these equations to get the right impedance required by your amp.

Example 1: Amp is 2 channel and rated at 4Ω when bridged, 4 subs @ 4Ω each. If I connect two in parallel and the other two in parallel and connect the two pairs in series, I would have a total impedance(resistance) of 4Ω. So to the amp, it's just one sub when bridged.

Example 2: Amp is rated at 1Ω mono, 2 subs @ 4Ω each dual voice coil. If I connect two voice coils in parallel and the other two voice coils in series and connect the two subs in parallel, I would have a total impedance of 1.6Ω. Which would be perfect for a 1Ω stable mono amp.

You should use a capacitor as well.

Recommend for every 500 watts MAX you use a .5 Farad cap
Example: 1000 watts MAX - 1 Farad cap

You will also need what's called a "line level converter" if your stock head unit doesn't have RCA outputs or your amp doesn't have high-level inputs.

Try http://www.soundomain.com/shop you can find some really good deals, and this site is manufacturer certified. VERY IMPORTANT WHEN SHOPPING ON-LINE!!!

If you like I can send you some plans for reference. My plans are for a 4-th order band-pass bass box (A.K.A. bass-reflex) that holds two 12's.

Also included are java calculators you can use to figure parallel and series values given Ω values, tips on box building and types, calculating port diameter and length(if used), calculating box dimensions for types of boxes (sealed, wedge, cylindrical, etc.), materials needed and even how to make a jig for cutting perfect holes for your subs.

Just e-mail me sparky3489@yahoo.com

My system

Blaupunkt TSw1200 subs with a Sony Xplōd XM2200GTX.
My amp is 1200 watts (200 Watts RMS X 2), subs are 600 watts (200 Watts RMS) each, cap is 1.5 Farad w/digital readout

SPL is about 112 db each sub

Total cost(so far) = $410
___________________________________

Side note to all those who complain about the way I post.

I have helped countless people with thank you letters in my e-mail and requests for more specific information. What I provide is a simple starting point for people wanting to get into car audio.

I'm just trying to give everyone a look at a TYPICAL sound system without getting too expensive or going deaf.

I'm not trying to enter a competition or suggest that MY system is for everyone.

If you don't like what I post, prove me wrong and I will stop!!

2006-07-10 05:55:23 · answer #1 · answered by Anonymous · 0 0

500

2006-07-10 03:45:08 · answer #2 · answered by bow4bass 4 · 0 0

SURE, I HAVE A HIFONICS 1200 WATT R.M.S. 2400 WATT MAX AMP, JUST GOT AND NOT WILLING TO SELL, BUT U ASKED IF ANYBODY HAS AMPS. BY THE WAY SPARKY YOUR SYSTEMS G.A.Y.

2006-07-10 11:06:09 · answer #3 · answered by munkyhead2_16 3 · 0 0

1500 watt power acoustix

2006-07-10 05:19:45 · answer #4 · answered by bullitt363 2 · 0 0

yes what u need

2006-07-10 03:47:06 · answer #5 · answered by BulisTiC 2 · 0 0

i have a 850x4 kicker. e-mail me metallman56@yahoo.com if you want it.

2006-07-10 05:59:42 · answer #6 · answered by JimL 6 · 0 0

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