http://forum.lowyat.net/index.php?act=Atta...=post&id=137813

currently using original ICE, planning upgrade my ICE as the above picture in the link. here is the thing i don't understand: the component speaker should come with a pasive crossover, so there will be a frequency filter between the tweeter and Mid Bass Driver. but the passive crossover come with component speaker only filter out the frequency between tweeter and midbass driver, how about crossover between midbass driver and subwoofer? do i need an active crossover/electronic crossover to divide the frequency of the signal from HU to 2 channel amp(component speaker set) and monoblock(subwoofer)?

i am totally new in ICE, sifus pls help

This post has been edited by DotA 5.84C -AR: Oct 25 2007, 08:35 PM

hmm.... for the mid and the sub... yea... one of the option is to have a out board e-xover... a 2-way ones would be enough to do it...

other than tht... some HU do hav xover built in... so you could use tht too...

other than tht... some amps has built on it... e-xover...

all these works the same way... jus the difference is the Frequency range they offer...

cheers....

If you stay with the system as picture, you no necessary need e-xover.
If you go for e-xover, I advise direct go for active...!

thanks a lot for the reply, really helpful! upon your reply, i have 2 thing not sure:

for number 1, how to make sure the HU have xover build in? i saw the specification on some HU stated got 3 pre-out, 1 front 1 rear 1 subwoofer. is it the 3 pre-out guarantee doing the xover for the frequency divide between component speaker and sub? or it just control the loudness?

for number 2, if my HU don't have xover build in and i don't want to buy a external e-xover, so i have to look for amp have e-xover build in right? in my plan as the picture there are 2 amp, one is a 2 channel amp driving the component set, and the other one is a monoblock driving the subwoofer. may i know which amp should have e-xover? the 2 channel amp or the monoblock or both also need to have e-xover build in to do the xover between mid and sub?

really thanks a lot to your reply, it helps a lot to a newbie like me

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Added on October 26, 2007, 1:52 amactually i just want to stay with the system like the picture, just that i don't understand if follow the picture's system how the system do the xover job for the mid and sub, for mid and tweeter i am not worried because there is a passive xover come with the component set

This post has been edited by DotA 5.84C -AR: Oct 26 2007, 01:56 AM

for the HU... some spec list do state out something like built in "LPF/HPF"... these should have it... normally a 3 pair pre-out HU has these features built in... the ones that dun have is only with one pair pre-out...

for the amps... assuming your HU doesnt hav both HPF and LPF... then both the amps should have the HPF and LPF... HPF for the stereo amp while LPF for the sub amp... if your HU has LPF then the monoblock doesnt need a crossover...

cheers...

For No.1, only the high end HU got xover, for middel range and low range don't have xover except the Eclipse 3100 got only if i not wrong. 3 pre-out doesn't mean you have xover inside HU, it just about mean 3 pair RCA direct from HU.

For No.2, You have to look for amp with x-over if your Hu don't have x-over. Now in the market the branded amp almost have the x-over so you don't need worry

thanks a lot to bro loon1031 and bro craziechild, really appreciate

now i know how the crossover work for the mid and sub. so which solution is better in the sense of performance/price? now i am eying on Pioneer P4950MP, however this player seems doesn't build in a xover for LPF & HPF. should i looking for high end player with xover build in or just buy a middle range player like P4950MP and look for amp with xover? which solution is more worthy investment while not losing SQ?

This post has been edited by DotA 5.84C -AR: Oct 26 2007, 01:51 PM

without losing SQ... a built in xover in the HU would be the best choice... reason is because when you add additional circuit onto your system... you risk introducing noice into it... so by having it built in the HU... your HU done all the processing and stuff the signal being sent out to each of the amps...

like the old saying... the HU is the most important thing to consider when you setup your system...

anyway... for your choice... 4950... why not add a little bit more for the 6950... it has 2-way crossover inside for your applications... direct control your sub amp from the HU...

cheers....

This post has been edited by craziechild: Oct 26 2007, 02:16 PM

thanks bro.. but.. are u sure 6950 has 2-way crossover inside? when i check its specification from http://www.pioneermalaysia.com.my i din't see inside got state that wo. the model i found got HPF/LPF is 6850 which is selling 1k++ my budget for whole ICE setup only 3k, if spend too much on HU i might need to cut cost on other part which may causing a worse sounding result, so i am looking for most balance investment. i just want an acceptable SQ within my budget will do. so do u think should i take HU with xover or without xover?

This post has been edited by DotA 5.84C -AR: Oct 26 2007, 03:19 PM

hmmm... not too sure myself... but i heard they have it... check with your installer...

3k setup is a very good budget liao my friend.. for a initial setup... but what are you planning? why not go full band pass active with tht budget? i think can do it...

cheers....

now my ICE plan is get a CD player, a 2 Channel AMP, a 6.5" component set for front, a monoblock, and a 12" subwoofer. i thought this is the simplest structure and cheapest way to go? if running full active might be more expensive because i need to invest extra 2 thing, an e-xover and another 2 channel amp to drive the tweeter. i will focus more on getting a better quality component because i am on SQ not SPL; i am looking for good vocal and instrument speaker because the song i play the most is classical, pop song like josh groban, jacky cheong old song, celine dion, kenny G...etc

from the speaker i observe, a better component like alpine type-R 6.5" already cost RM1k, if the HU also 1k total up is 2k already. i only left 1k for 2 channel amp, monoblock, subwoofer, cable and workmanship is definitely not enough
so... is it 3k budget to start from zero is quite tight also for playing SQ?

This post has been edited by DotA 5.84C -AR: Oct 26 2007, 06:00 PM

Do you already buy HU, component, sub & amp?

Or you can plan step step lo.. Add HU > Component > Amp > Sub.

well... depends on what you getting... for me... 3k no problem liao for a full active SQ setup... but a mix of mid range and high end la... normally the front component and HU most expensive two... getting a 2 channel would lower down your budget too... and it could be use in a single sub setup... and well some 2ch sound better than a monoblock of the same price range...

cheers...

i don't have anything now. yes i am going to do it step by step. now looking for HU 1st, but b4 buy a HU need to consider many factor like those feature included inside, that's why i need to know how the whole system work then only can choose correct HU

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Added on October 26, 2007, 9:41 pmi see... thanks for the feedback!

so for cheaper solution, i should looking for a 2 channel amp bridge to drive the sub instead of a monoblock right? how about getting a 4 channel amp use 2 channel for front and bridge 2 channel to drive the sub compare to 2 x 2 channel amp separate drive the component and sub? which solution better?

sorry i am really newbie in ICE, i just have a car recently.. LOL
can u recommend me a whole ICE setup for me to reference? with my budget, i have no idea which model and which part should take mid range and which part should take high end to get the result towards the good SQ in vocal that i focus. thanks a lot!

This post has been edited by DotA 5.84C -AR: Oct 26 2007, 09:53 PM

You can have:
2 channel + mono block
2 channel + 2 channel
4 channel

Direct go for 4 channel can safe space ma...

hmm... a 4 ch driving the whole system... well you hav to look at those high powered 4ch then... i am afraid your budget wont take you there... if you dun mind taking second hand stuff... then your choices widens...

erm... jus out of my work place price and setup for a RM3k price range based on your music preference: vocals... note: price may vary...

Eclipse 3series
DLS R6A
Kicker CVR
Alpine MRV-F345
Streetwires ZN
Directed Essentials

note: all new but price may vary...

cheers...

Ya ...

Eclipse 3series - one the entry level Hu with x-over. (almost RM900 to RM1k)
DLS R6A - Nice entry level component suitable for vocal (Around RM800 to RM900)
Kicker CVR - Not sure the price
Alpine MRV-F345 - Not sure the price also
Streetwires ZN
Directed Essentials

Eclipse 3series - taking the older models as they hav a slightly better SQ before their factory moved to kenwood... and cheaper as well.... around RM0.6k to RM0.8k
DLS R6A - Nice entry level component suitable for vocal RM1k
Kicker CVR - Around RM0.5k - RM0.8k could swap with DLS OA12 if you dun like the punchy kicker... custom box included as well...
Alpine MRV-F345 - around RM0.8k to RM1k
Streetwires ZN - thrown into the package with the amp's installation..
Directed Essentials - thrown into the package as well...

but note tht price may vary with your installer...

This post has been edited by craziechild: Oct 27 2007, 11:44 PM

Hehe, Good explanation.

Bro, you upgrade again ar?

erm... dun think so.... jus giving back all my boss's things which was in my car for demo last time and then reinstall it with all my own old stuff...

but the fun part.... going back active.... 4-way active...

cheers....