SQ = Sound Quality, SPL = Sound Pressure Level.
SQ is u like to listen to nice music while SPL is for everyone to hear, the boom boom style. to make it simple, SQ is Quality, SPL is Quantity.
rm700... u can get that GTO but u won't have spare cash to get an amp for it. for rm700, i think u can ask zennn to help u find a focal access.

yup, just use the 700 for the focal access and run it from the HU first. then start saving up for a decent 2ch amp for the focals for next upgrade.

for temporary

can i used the a mohawk 2ch amp to push
a set of component sets and 1no. 10" woofer together??

how the wiring will be??

bridge to push 10"
and +- +- to component??

yup, but u risk damaging the amp or the speakers

Hi,

From what i gather from the sifus

Currently i'm using a pioneer HU which has 2 RCA pre outs and a component set.

I'm planning to get a 4 channel amp and a woofer.

I understand that the usual set up is 2 channels for the component set and 2 channels bridged for the woofer.

Does this mean that the rear speakers will have to be blanked out?

or is it ok to power it with the HU. Will it sound weird coz i get the impression that once the woofer is installed, just kill off the rear speakers coz it won't sound nice. But i guess any rear passengers will then only feel the woofer.
Can it still work?

Also the guy at the shop did mention 2 RCA will give a fader option for front n back. Not sure he meant fader between the front and rear speakers or fader between the front and woofer. Can anyone clarify?

he also said my panel speakers which i think is 5 inch is a bit too small for any difference but suggested to install the amp and upgrade later. But i think having an amp should provide significant audio clarity even if it's just 5 inches....what do u guys think?

Alternately, he did also suggest just getting a 2 channel amp to just power the woofer and let the HU power the components(he hinted not much diffrence if power the components) since its running on 5 inch speakers, but i suspect it might be unbalanced. Anyway, it's better to have an option for upgrades right?

Hi to all sifus here,
I'm from Miri, Sarawak here and I plan to upgrade my Hyundai Atos (noob car:() ICE. Recently I went to one shop here and the people there quote me a JBL GTO series component with JBL GT5-12 woofer and a Marriola amp. Is this worth it? Sorry i'm a newbie here. Any comments will be appreciated.

good SQ systems usually dont even have any rear speakers. if u feel u need to, then powering it up with the HU is the better choice. in good systems, rear passengers will also hear the front components.

for fronts + sub, since rear pre out is used for sub now.

are your 5 inch speakers from a component set, or are they OEM speakers? usually first upgrade would be changing oem speakers to components, then only adding amp and sub. if theyre oem speakers having them powered by the amp could kill it, make sure the gain level is low.

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Added on May 13, 2009, 4:27 pmneve h eard of mariola amp before, like mazola cooking oil je, hehe...

why not get jbl amp to complete the set?

This post has been edited by zennn: May 13 2009, 04:27 PM

because this is all together in one set for RM880, JBL amp for now too exp for me le.. thinking of using this amp first then save up to change for better amp lo.. is that ok?

This post has been edited by initial.craig: May 13 2009, 09:34 PM

it's not OEM speakers. As it's a 2nd hand car, the previous owner had it set up. Is 5 inch speakers too small for any noticable difference?
I think the amp will still make a difference in terms of improving the signal.

For sub woofer size and selection, what is the usual do's and dont's?

Would keeping the rear speakers spoil the sound balance? Some opinion states the rear speakers do not play any good role once the component and sub is set up.

thanks bro.

why not skip the mariola amp, power using HU first. save up for a gud amp straight. no need to waste money on the cap ayam amp. if u buy it, most prolly after u get ur better amp, it will rust in the store room unless u selling it for rm50 or less, lol. no offense bro. just a piece of advice.

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Added on May 14, 2009, 3:32 amimho, adding an amp will still make difference. for sub selection, in ur case is the power and ohm matching with the amp. if u plan to use the 4ch amp bridged for it, i would suggest a Single Voice Coil(SVC) 4 ohm sub dat rated almost the same as the output of ur amp. e.g. amp(4x50W rms @ 4ohm, 2x200W@ 4ohm bridged), i would suggest a 250W rms or less SVC sub. 10" or 12" depending on ur need and space available in ur boot la.

This post has been edited by ckmoy007: May 14 2009, 03:32 AM

erm, no no... what I meant is i bought the component for RM880, and I get one JBL GT5 subwoofer with enclosure and one Mariolla 2 channel amp for the subwoofer, so means that the amp is erm, for free actually sorry, i didn't say clearly before. I would like to ask is the JBL ori? I mean for this price. Comments are welcomed ..

oic, 880 for the comp alone? i think it's a little overpriced. perhaps u can consider my boston acoustics. confirm tak kalah the GTO, at least when i bought it, compared with alpine type R and DLS R6A and i chose this at last. if 880 including the sub and box then it's worth it la. ori or not, of course i can't tell u. if the shop is selling genuine products i.e. authorized dealer, then shud not be a problem.

Need advice from PRO pls.
I got 1 pegasus 4 chn wif spec : 4 ohm Stereo: 50W X 4, 2 ohm Stereo: 75W X 4, 4 ohm Mono: 150W X 2.
And I got 1 pegasus component set wif spec : 70 Watts RMS, 140 Watts Peak.
If I bridge the amp to 2chn which 150W X 2 to play the component set, will it overpush the component set or any better setup can be made.

bridging is not a good thing thou overwhelming power means more control of the speakers.. bear in mind that after bridging, ur THD will go up.. (THD=total harmonic distortion) then u may loss sound quality..

Bridging will loss sound quality but if I use a amp wif 50rms x 2 to play my 70rms component set is a waste of my speaker?
Usually they say use the amp which more rms than the speaker, is this correct?

depends on the quality of the amp and style of listening. i've known ppl using a 2 x 30W rms amp to power a 220W rms tweeter, and it doesn't sound bad. but on the other hand, powering the midbass and sub will need adequate power to perform at its max. so it also depends on ur application. but from my experience, 50W rms is quite enuf for a 70W rms speaker. unless u playing SPL, for normal listening 50W rms is gud enuf d.

Sifu, if i using this 4chn amp to play 1 set component set and 1 subwoofer. should i use dual 2ohm or dual 4ohm subwoofer which with 350rms? the details of the amp as below:
SOUNDSTREAM PCX4.540 PICASSO SERIES 4 Channel Amplifier


•No. of channel: 4Channel
•RMS @ 4 ohm: 80W x 4
•RMS @ 2 ohm: 135W x 4
•RMS @ 4 ohm mono: 270W x 2
•THD: 0.10%
•FREQ. response (Hz): 10 – 35k
•S/N ratio: >95
•Damping factor: >200
•Input Sensitivity: 200mV-8V
•Crossover slopes: 12dB
•Low pass filter (Hz): 50 – 150
•High pass filter (Hz): 50 – 500
•Bass boost (60Hz fixed): 0 – 18dB
•Phase (degree): 0 – 180
•Fuse: 20A x 1
•Dimensions: 19.4” x 2.5” x 10”

of course dual 2ohm.

This post has been edited by ckmoy007: May 20 2009, 05:41 PM

for a 4ch amp to run sub, make sure sub is single voice coil 4ohm, or a dual voice coil 2 ohm wired in series (4ohm load), this is bcoz most 4ch amp are only stable to 4ohm when bridged mono.

Sifu-Sifu,
In case, my HU have only 2 pre-out. I got 1 electronic crossover, 4 channel amp, monoblock amp, 1 component set, 1 subwoofer. How should I connect them? I thinking to use the 4 channel amp which 2 channel for mid-bass and 2 channel for tweeter ( not using the crossover included at component set ).