QUOTE(aaronlim @ Sep 28 2012, 04:16 PM)
Wow..to many to reply here for previous posts.
1. The aircompressor once kicks in, it draws much power (electric)..that is why flickers. A good VS or battery (higher rate) may help. It is kind of heavy and the battery seems too small to take the load. Next round once the battery kong, I will change to MF with higher spec as I have 'small' underseat woofer and I pump up the headunit's volume averaging 12-14 most of time.
2. Don't change the speaker first. After you changed, also wont help much. I heard that some alza owner add in the sound proof, the 'bass' is better. Not for me as my expectation of bass it higher.
3. I previously changed the speaker first, the HU can't boost the new higher spec speakers..and hardly any bass also.
Unless u want a more clarity sound.
4. i wld suggest add sound proof first on 4 doors, then see how is it. Our ears has many preference from one ppl to another. Like me, I want clear sound / voice with some good bass. So I tune the HU to lower bass and okay treble for good voice and clearity. Then if nak bass, add a 10" underseat woofer like I did. Adjust the frequency both ends.. done.
All this as entry level sound system utilising existing headunit.
5. The 4 doors sound proof pads is good to have.. just around RM300 (mixture of 2 types of pads for value and effectiveness), I think now price a bit more... can buy bulk then cheaper. DIY lo... at least close door also no plank plank milo tin sound.
6. Bro lowstate, chasis foam on chasis wont help much in soundproof. Handling yes. If nak mixture of some better handling and soundproof (road / tayar noice), I DIY - put foam into A pillar and door sills. Just 2 cans, cost me RM110 (I selling this as my friends asking me to get it from supplier).
DIY will give more knowledge and know the alza better. I can give guide / tips pun.. I think many sifus can give guidance too. Some also get me to do it for them with some small fees (pads or foam).. some DIYer DIY themselves and ask me to be there for guidance or help when needed. (provided the timing is right la)
But again, all these choices are open to each individual in priority. No right or wrong.

Thanks for your reply bro Aaron, I don't dare to add in any pads because I afraid I'll screw up any clips and make situation worst. Couldn't find any accessories shop that provide this service here in Perak. So I'll just pass and install a good VS. ya'll recommend EDGE VS?
Added on September 28, 2012, 5:02 pmQUOTE(tyenfei @ Sep 28 2012, 04:33 PM)
Retail RM249. with this price anytime can order and including POS laju. Unless too much order production slow.
Limited time super promo RM190
But I'll need gather minimum 3 order then only can get. POS add RM10.
This Edge Entry Level VS need about 200 hours of run in (masak cukup cukup) before it really 100% function.
BUT, with 30 hours of run in this VS already much better than many in the market

( this is not my script, but I'm 100 agree after using it)
pm me more about Limited time super promo
I'm interested to get one unit of it, so far you got any order with you?
wow 200 hours, its like few months of driving since I'm not driving too frequently.
This post has been edited by lowstate: Sep 28 2012, 05:02 PM