ok i get it about the channel now thanks. il post up pictures in a few months once its all finished for u guys to see lol

Hi every one sorry to trouble everyone ere but i just came across this wiring diagram and i dont quite understand how te bit highlighted in the red box works. From what i can see there are two channels going into one amp. The Front and Rear speakers. Is there a speacial type of name for this kind of amp that can do this? I thought most smps have only one channel in?

My set up is going to be exactly like this but with two sub-woofers.


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2 RCA (1 red & 1 white) = 2 channel on the amp output (2 +ve and 2 -ve).
while on mono amp, most of them combine the information on both white and red RCA into 1 output, so there's onli 1 +ve and 1 -ve on the output terminals of most mono amps(same have 2 +ve and 2 -ve depending on the topography of the amp). most 4ch amps, will have 4 inputs (2 red and 2 white RCA), which result in 4 +ve and 4-ve in the output terminals as they dun combine the signal like a mono amp does.

o wow, i always thought that amps had only one input but many output. can u tell me if this diagram would work? its a component speaker set for the front.

and for my type of music, im thinking DVC or SVC and wired in series or paralell? i want a total of 2 subs.


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this diagram is ok. dun see anything wrong. as for sub, u gotta match with amp. refer to the 1st page of this thread for wiring examples. dvc and svc doesn't really matter, if ur amp can onli go down to 2ohms, then 2 pcs of svc 4ohms wired to 2 ohm will be the best option. of course, u have to match ther power too, u can't be using a 500w rms @ 2ohm amp to power 2 500wrms subs, rite? cos this way, the subs will be getting onli 250w each.

hi all .im a newbie here and in ice also..
my current setup is simple entry level one
1.hu - pioneer 2950mp(rm370)
2.front component speaker -cerwin vega hed 1602a(rm600)
3.rear speaker -cap ayam ice stereo brand(rm300)
4.rear tweeter - dls(rm150)

well 4 about 2 years ill really satisfied wat my setup givin me...until....
i bought a home theater system..after that my car stereo sound like crap..voice not so clean..bass not so boomy,tweeter not so kacing kacing sound..hehehe

so after been reading n surveying car sound system near me..i gotta find myself a sub n of course amp..

so wif a tight budget and really not so patience waiting long for a bass n clear soound ive booked oredy a pioneer 4 channel amp n 12'' woofer..

amp - pioneer gm-6400f(rm780)
sub -pioneer ts-wx301(add another rm32o bought together wif amp)

4 channel amp...2 for front component system n 2 bridged to 1 for sub...

ahhh now my boot space will b a bit small..
i hope d setup will b enuf for my ears...and dot have to upgrede anymore..ice is so pricy lahhh

noob here...from ur post here thats means that a hu with 2rca n put in a amp with 2rca input rite??...if i power up 2 comp set with it(using all 4 channel), n i buy another amp with sub...how do i connect the new amp to the hu?? or is there another set up for
-2 comp set
-a 4 channel amp to power my comp set that have 2 rca input
-another amp for sub
-a sub
-a hu that have 2rca output??

or better i get a 3rca output hu??

there's something we call Y-cables, which splits the signal into 2. google for more info.

i know that...but if use it the sq will drop rite??

This post has been edited by spadecrew: Jun 13 2009, 11:30 AM

just get 1 comp set will do, leave the rear for the HU to power. then u will have enuf amplification channels. Y cable split ur signal into 2, how the SQ changes varies in different system.

get an electronic crossover la....

is electronic xover is diff with the xover that we get when buying a comp set??

Now I using alpine HU with 2 pre-out, 1 for 2 channel amp to play the front component set and another 1 for monoblock to play subwoofer. all sound settings is nice for me now just the subwoofer is abit low although the HU subwoofer setting is max, should i adjust the gain level on the monoblock to get louder? adjusting the gain level will spoil the sq?

yes, the one with speakers is called passive crossover. it divides frequency at speaker wire level, comes between amplifier and speaker

electronic crossover uses rca cables, divides frequency at signal level via rca cables, comes in between head unit and amplifier

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Added on June 14, 2009, 11:12 pmhave u tried playing with EQ yet? try and boost some low frequencies before u play with gain. anyway u can increase gain as long as u know where to stop, so u avoid sending clipped signals and damage your sub.

This post has been edited by zennn: Jun 14 2009, 11:12 PM

thats means that when i use these elec xover...only high freq goes to a amp that power my comp n only low freq goes to another amp that power my sub...soo i assume that i will get better SQ..rite??

yes, high pass for front speaker amp, low pass to sub amp..

nowadays head units have inbuilt electronic xovers already, so thats another way to go

referring to my thred over here is any of these three player that have built it elec xover??

another ques...if i want to play with sq for comp set n spl with sub will it sound nice when combine together??

This post has been edited by spadecrew: Jun 15 2009, 06:57 PM

it's all down to tuning. not sure if any of ur HU mentioned got crossover, u can check their spec. bear in mind, if ur sub is too powerful, u might not enjoy ur setup cos of overwhelming bass dat 'cover' the sound of ur comp. dats why gain matching is important in SQ setup.

im driving civic 4door year 97...the sub for sure sit in the trunk...will the sound of the sub feel the same like i'm sitting in satria or wira aeroback becoz these two car are connected between interior n trunk but my car is not....will it sound slower?? if its slower can it still overwhelming my comp set??

the sub will not feel the same in aeroback compared in sedan. but u can alwez remove the rear speakers and there will be 2 holes for the bass to come in, dats wat i did for my car. u can alwez adjust the gain on ur amp to ur liking.