I think I blew out my Alpine 12" subs. Is there any way I can fix them instead of throwing them away?

Question

i hooked up som e wires wrong and they ****** up. Can this be fixed?

Answer 1

Nope.. if only there were tho..

Answer 2

yes, yet I forgot exactly where to find the kit's although you can't really call it alpine any more, if it was an expensive speaker it may be worth (refurbishing) which is a technical name for rebuilding as far as I know electronics could be anything yet when a speaker blows it is usually a the voice-coil and if you where to rebuild it is something for someone that has taken a speaker apart before and knows the inside of one to keep it an alpine take a razor to the surround ring where it meets the cone and the spider's web on the inside where you would connect the wire's Even then where the wires connect you will have to follow them inside the magnet dis assembling in the right order you might be able to fix this yet I don't Even think I can do it though if I had a book that told me how I might if it is an expensive speaker $250-1000 I would say send it to me and I would try to fix it or find some one who can it's going too cost at least $50 min and that's a guess more like $100 and could be more who knows

Answer 3

You are SOL my friend...

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, 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.

Example 2: Amp is rated 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 [e-mail]

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

SPL is about 112 db each sub

Total cost(so far) = $410

Answer 4

When you bought them did you purchase any kind of warrenty? If so take them back to the place you bought them, if not, you might just be hit son!

Answer 5

Nope!

Answer 6

There is no kind of rebuild kit or anything, and nothing you can just "pop back into place". sorry.

Answer 7

no