but of course with a good dsp but dun have a good tuner also no use....

Money never wasted if can afford it.
Only the potential wasted

last minute out of stock Alpine SWR-12D4 model.. the seller offer me Alpine SWR-1243D and Alpine SWR-12D2. WKH malaysia also don't have stock.. very hard to get the sub....

I try to get this sub Alpine SWR-12D4 because the RMS 300-1000 watts and Peak until 3000 watts... The sub also around my budget rm 799 - rm 899...

This post has been edited by mzzzk8819: Sep 20 2013, 03:10 PM

potential are not standing and waitfor anyone...only the know-how will make the potential works....

that day i saw a sub around 699 got a potential of 5000w peak..RMS also 300 watt only..i think this is better deal

That is really deep, sifu

Wht sub is this? Link please...

Good morning to all..
Just now I buy this Alpine SWR-12D4 sub.. I need some advice about wiring..
the sub is Dual 4 ohms (1k RMS) connected to prokick monoblock (not sure with amp ohms)...

Find from sonic electronic


Owner's Manual from alpine (SWR-10D4, SWR-10D2, SWR-12D4, SWR-D2)



Which wiring method should follow... and Please suggestion good speaker wire... thanks

This post has been edited by mzzzk8819: Sep 28 2013, 07:36 PM

you choose one of those above to follow...

dont connect any other method other than shown above...

Thanks for reply..
How about ohms of amps?
Method 1 show 2ohms amp connect to dual 4ohms subs.. method 2 show 8ohms amp connect to dual 4 ohms..
Another review at sonic electronic show for monoblock used method 1 and for 2 channel amp used method 2..

Sure I will bring this sub to shop to do installation but I dont want the accessories shop make any mistake that affected the subs or amp....

This post has been edited by mzzzk8819: Sep 29 2013, 03:14 AM

The load (ohm) on the amp is given by the speaker wiring configuration.
U wire it to less ohm u will get more power, i.e. Method 1

If u worried, then u better get another installer, otherwise make sure ur shop gives u good warranty on ur amps

if u wan gud better sound without changing ur ori HU then DSP like JBL MS8 can help u. and it's gud for ppl who can't tune cos of its auto tune function.

Hi.. I follow method 1.. the sub sound is very awesome hear inside car.. but I increase volume loud and open boot only hear wind sound.. maybe I think woofer box not suitable..



The sub Diagram





sub volume:

suggestion from alpine (sealed box volume: 0.75-1.00 cu. ft.// ported box volume: 1.25-1.50 cu. ft.)

calculate sub volume using http://www.rockfordfosgate.com/rftech/box_wizard.asp : 1.36 Cubic Feet

Please advise correct box for this sub... normally used sub hear outside.. thanks

This post has been edited by mzzzk8819: Oct 2 2013, 01:39 PM

use sub hear outside...

you either add sub woofer units...

you add huge power....

choose whichever fits your budget...

but to use an alpine sub and run on SPL setup, i dont think its gonna do your wallet or equipment any good...

run on chapalang stuff enough liao... at least for the same price you can buy multiple units!

Bro, dun reli understand why u open boot to listen . . . .
Anyway, normal subs works veli well in a closed car coz the air pressure is contained, if u wan to play loud in open air, u need something like these (huge woofers with mega power)




Now, if you are some kind of basshead (like i do) and u like to show off to a crowd (i m low profile), something like this wud do a much better job


so delicious . . . .

Better yet, get 4 of these



to be honest, ur sub doesn't look like its made for SPL, might not be a good idea to spend on another box using the same sub

This Alpine SWR-12D4 sub enough power but when increase sub volume only hear loud wind sound around ported part.. I choose this sub because around my budget.. so I dont want change any other sub.. I think maybe this box not suitable.. maybe can advice any box suitable for sub or doing sub setting to minimum wind sound..

i see, so u r saying bout the wind noise becomes louder

this thing not bad can handle 3000w, the design is so civilised
price oso very reasonable
i think this sub deserves a bigger box

the recommended enclosure size can usually be found in the manufacturers manual or website, have you tried looking for it ?

Some review about enclosure..


I think should buy more bigger enclosure.. Any suggestion type of enclosure, fibre? wood ? vented size ? vented shape? thanks

dat loud wind sound is probly port noise,,,,,,

This post has been edited by malutapimau: Oct 4 2013, 03:22 PM

normal to hear some port wind sound, but shouldn't be able to hear it when in the car


mzzzk, what amp u r running this sub with ?

This post has been edited by CarroTT: Oct 5 2013, 11:37 AM