Current ice in myvi, HU (RCA x1), 2-ways 4" speaker, amp+woofer.
Plan to upgrade, HU (RCA x2 n above), add another amp for power the 2-ways 4" speaker.
Question is, will it make different with my current one, or just minor diff like louder abit for the speaker coz power by amp, my speaker easy to power, just need 25rms gaodin...tq

what you want to achieve btw?

voice loud without harm speakers, speaker without power by amp if u turn up volume, it will harm ur speaker, right?

you need to understand how amp/speaker works as your current goal/objective is very flawed.

as for this post's question: no.
it just wont go louder than what your HU can provide towards the speaker. (or what your speakers are capable of anyways)

having amp wont protect your speaker being "harmed" when you go loud either, in fact, having an amp has a much higher chance to fry your speakers as you have greater capabilities to go louder.

I think yours currently is stock HU, right?

Then just change HU first lor, you should notice a lot of improvement already.

Adding amp for the 4" ah, not sure if it is a wise investment.

Just try change the HU first lah, you should enjoy a better improvement already.

HU suggestion : P80 RSII.

Yeap,P80RSII

+1

if you wan to go loud... install more drivers not more amps.

This post has been edited by craziechild: Mar 7 2012, 09:58 PM

Price of a P80RSII also

try search for used unit as long in good condition,kawtim

i ord upgrade to pioneer 2350, problem is tis hu only hav 1 rca...so tat is no point for me to power up my 4" speaker with amp? just use hu gaodin?

Change Component will more effect ~

problem is i dont willing to cut & do door panel for the 6.5"...haha

have to sacrifice lor can refer to mr wong thread for myvi midbass mounting

mr. wong thread for myvi really gg...but i haven't into tat stage yet, i mean SQ, stil in SPL...is it big dif for single coil n double coil woofer? single for in car?, double can outdoor?

usually double coil woofer can handle more power..

than i guess for the moment just stick to my current set...since not much dif if upgrade...unless components+p80sr2...lol

1 pair RCA output is good enough... there is no limit to how many amps you can install with one 1 pair RCA output... here is what you do...

1. get a pre-amp stage, i.e. line driver, e-xover, EQ, processors.
then basically you will have at least 2 pair RCA outputs...

2. get an amp that has RCA line outputs.

3. get an amp with "hi-input"/line input. it can be a 4ch amp, 6ch amp...

double coil or single coil doesnt make any difference on the power/input power/etc...

what you get with double coil is basically just more wiring options. with this wiring options, you could save your money on the amp selections.

i.e. buy a 300w rms amp @ 4ohm, 600w rms @ 2ohm to drive 2 units of 300wrms @ 4ohm single coil subwoofer. more cheaper

buy a 600w rms @ 4ohm, 1200w rms @ 2ohm amp to drive 2 unis of 300w rms @ 4ohm double coil sub. more expensive.

but on both setup, each subs needs only 300w rms, performs only like a 300w rms subs. pay more, same results.

yes you could wire the second setup to 1ohm. but amps that performs 1ohm stable operations is going to cost more.

SPL? How come you never mentioned about speakers belakang?

mr wong's mod on the doors are superb, but need to leave the car. haih

Usually premiun quality installation requires longer time and days to complete..