02NV wrote:where's Boney when you need him nowadays....???

im here.. im here!! what did i miss??
rxboy wrote:
PS: excuse my noobity , but what do SPL & SQ mean?
ok.. first question.. and an easy answer..
SPL = Sound pressure level...... DB (Loudness)
SQ - Sound Quality (Self Explaintory)
I'm not exactly sure what's the difference between 4-way speakers and 3-way speakers other than the increase in max power commonly seen.
Hez is right on this one.. the 4-ways have a double tweeter as apposed to the single on the 3 ways... and this does not nessesarily mean you will get a greater power output.. but the fact that you have 4 speakers running rather than 3 is the common occourence for the extra (Box rated power)... truth is.. you are only splitting the high range up more.. you wont hear an audible difference in loudness between most 3 and 4ways
The better question is.. why are you even bothering with 6x9's?
take a look at most good systems.. ie (go down and check out MAS this weekend and take a look at the sound off comps... you will notice almost none of the compeditors use rear speakers.. just a sub and a front stage (Front stage meaning splits or 2-ways in the front doors/front section of the car) although a few might have speakers there for cosmetic perposes only
the logic behind this is... when you go and see a band.. or live music.. where is the performer? behind you or in front of you?
a well set up car system can create what is called a frontal stage.. were your dashboard is like the stage.. the vocals will seem to come right out of the cdplayer itself.. the drums will be out the back.. kinda like theres a drummer sitting on your hood... this is what SQ (Sound quality) comps are all about.. and trust me.. when you hear a SQ car.. you think very differently about car sound.
having said that.. you might wonder why so many people have 6X9's in their car... there are a few reasons for that...
1) 6X9's have "good" bass - yes compaired to a 6 inch speaker in the front doors.. of course they will.. as they have a larger cone (Surface area) so therefore they can play lower frequencies more easily..
so you see a lot of people use them rather than a sub due to lack of money..
2) more speakers the better - The more speakers you have.. the louder the "whole" sound will be...
3) i want someting for the people in the back to hear..
So really after all is said and done.. its up to you.. the reason a lot of people (like myself) are against 6X9's is the fact that it will draw the sound behind you.. and the music just doesn't sound real.. plus the fact coaxial speakers (2way/3way/4way) will never sound anywere close to splits
if your only reson for wanting 6X9's in the back is for rear passenger enjoyment i would suggested amping up the front stage and the sub.. and leaving the 6X9's running off the head unit (this way.. you wont hear them much from the front... but the rear passengers will get just enuff so they are not overcome by the bass fron the boot
I'm gonna run the sub off a 2-channel 400W amp. I'm assuming that I can use 1 channel for sub and 1 for a set of rear 6x9 speakers. Is that correct? Would I be better off getting a 2-channel 600W amp instead if I were to buy 4-way 6x9s???
ok.. what you need to find out.. is what the real wattage power of those amps your looking at is.. you know how you go down to the store and you see the boxes saying things like 1200watts!! and they are only $120??
thats because they are talking about "MAX POWER"
max power is the the loudest the speaker can possibly go.. (in saying which if you put that much power throught it.. it might play it for a second.. but then it will blow up..
the common rating to work with when looking at car audio is WRMS ratings..
WRMS is the amount of watts that the equiptment (speakers/amps ect) can produce constantly at a happy level.. also known as Nominal power Handling
most amps will have raiting like 500w max but only 150WRMS
then you have those ultra cheap brands that say 1200w.. and they are only 50wrms.. (they use the max power as a marketing ploy to make there stuff impressive)
so the question is.. i want to power up my system.. how much RMS do i need?
most 6X9 will only get about 50-150wrms - so they sepakers you see at jb hi-fi claiming 400w is a max power reading.. you put an amp with 400wrms trhough them.. bye bye speakers really quick
hez is right saying 400w will not run a sub... and 400WRMS would be overkill.. (maybe- depends on how loud you want it)
find yourself a good 100-300wRMS amp to run a sub.. my suggestions (and as i dont know how much you want to spend ill consider moderatly priced stuff)
Cadence
Jaycar Responce
Coustic
Alpine
maybe kicker... (there older stuff was better)
Stay way from - JVC/Kenwood/Sony/pioneer
and if you can afford it
Phenoix Gold (I can never spell it)
Rockford fosgate
Audison (Best i've heard)
U-Demension
Orion
AS for subs.. try the following brands
Focal
Rockford Fosgate - Punch Series
JL - W series
Kicker - there sqare subs are quite nice (L7 solobaric i think they are called)
Soundstream
Alpine type R's
Also which is the best postion to place sub in the FTO?
quick answer as im getting tyred from so much typing...
yes.. firing into the back of the seats will most likely get the best results..
finshing up.. my final comment and suggestion is this...
decide for yourself what you want for your car.. talk to some installers.. listen to what they have to say.. but dont take it as gospel... same for everything i said here.. the best judge on your car sound will be your own ears... your the only one who has to like it
oh.. and stay away from jb - they cant install crap!
i did my installing apprentiship at a few of them.. and they are all dodgy as!
if your in melbourne.. not sure if you are.. id be happy to sit down and talk to you about a setup and give you some ideas and questions to ask the stores...
thake your time when buying car audio gear.. its f**king expensive.. and you will regret it if some pushy sales kid makes you buy crap gear