Rear speakers

[AutoS]

TurboB,

 

Yup much better to have the rear fill on the parcel shelf rather than on the rear doors. This way avoid music playing from behind aiming at bum cheeks in front. Will be good only if have ears on either side of our butts.

 

But 6x9 not rear fill spkrs of choice becuz play full range frequencies quite loudly and will mess up the front stage. If serious abt good SQ the best choice for rear fill is simple and cheap.

 

4" coaxial, snip the tweet wire so disabled. Mount side by side in the centre of the parcel shelf. Why? Cuz by doing this will end up W/ the rear fill playing between 315hz to 2200hz most prominently. This means get only mid, no bass, little mid-bass, less hi-mid and no hi's. This is exactly the frequency required to support the front stage for more headroom effect, wider sound stage and more depth in the sound reproduction.

 

Placing the rear fills on the parcel shelf side by side will get the mono effect bouncing off the rear windshield and coming overhead to help lift and centralize imaging whilst the front spreakers placed either side left and right will still provide the steorophonic effect left-right closer and further to get that clear separation effect.

 

Also 4" are small neat and easy to mount. And even the good ones are relatively cheap.

 

Many Installs I come across, pple got expensive rear fill comps as good as or even better than the front speakers. This is a waste cuz the SQ will not be any better. If 4" coax used a few hundred bucks could have been allocated to even better front speakers, HU, EQ or amp etc where an audible diff would be achieved.

 

The Kangoo U auditioned yesterday very so-so only. Like I mentioned it is using left overs and using some inovative install techniques to achieve a listenable SQ. When ICE savy pple listen and I show them what's in the system they are very surprised. This I do for my wife's Bro cuz he not even an ICE enthusiast.

 

We finished off the Corolla late last nite, now that is more like 'real car audio.' The best part the owner so steam on the results he was getting from his old transferred equipment piece for piece, he and his GF were thrilled W/ the diff. That makes me happy and it's a good reward 4 us. 1am the guy SMS me asking for quote on running the Tubedriver Blue Amp and CDT HD cuz he asked me previously what could be further upgraded.

 

Well maybe U Guys may get an audition if U like this coming Sat cuz will be completing some cosmetic touch up. May or may not have the upgrade depending on owner. Also I will update U Guys on the mag issue which this Corolla will be featured. Oh yeah and of course the Wheel's Asia out now features the CRV we did. I myself haven't seen the article yet. Will see where I can buy the mag.

 

AutoS

Edited May 5, 2002 by Admin

[Guest Triggerhappy]

I have an amateurish question.

 

When I played with the rear and front spkr volumes, I noticed a very big difference in sound quality in that the rear spkrs emit really lousy sound compared to the fronts which is clear and full-bodied.

 

Is this typical of HU's output for the rear fill? That is, the rear fill is not the full bodied sound?

[AutoS]

So far the signal output quality front and rear from all those HU's I've come across are identical. The diff in sound will either be the diff in speakers themselves, the mounting position or /and Ur seating position relative th the speakers in the car.

 

As I was trying to communicate in the last post to TurboB, rear fill speakers and front stage spkrs have a completely role to play in the overall sound reproduction and should be treated as such in the installation if SQ is to be achieved.

 

Problem is few pple really realize this in Sgp, even those in the biz. The best way for rear fill has already been described above, however does not make for good rear spkr perfornamce by themselves but are the best way to utilize the rear spkrs 4 their proper function as rear fill.

[Turbobrick]

So the rear speakers fill up the sound for the front and rear passengers will get mainly the "filling" low frequencies only? (Not that the passengers need better sound )

[Oinkened]

Who cares about the passengers, let them envy the drivers afterall we are the one who drive them around and need the comfort[;)] errrrr unless u are driving ur boss...

[Turbobrick]

I guess my passengers will be more annoyed by my boom boom exhaust

[Magfocus]

Who cares about the passengers, let them envy the drivers afterall we are the one who drive them around and need the comfort[;)] errrrr unless u are driving ur boss...

 

Like that i dont want to be your passenger man!

[Sparetyre]

Excellent writeup!!!!

 

I have a question in my mind for quite a while, maybe you can shed some light...

 

If the purpose of the rear speakers are just for rear fills, is it necessary to use an amp to drive them???

 

Thanks in advance.

[Oinkened]

Hehe me just novice ok ... so just give my 2 cent worth of thoughts... Dont waste the $$$ on using the amp on the rear speakers. If u have a 4 CH amp... use it to power the front and sub. The rear can be power by the HU[sly] Save money

[Sparetyre]

Hehe me just novice ok ... so just give my 2 cent worth of thoughts... Dont waste the $$$ on using the amp on the rear speakers. If u have a 4 CH amp... use it to power the front and sub. The rear can be power by the HU[sly] Save money

 

That's my current setup....

 

But have read those so called "great ICE jobs" in mags and most are using amp to drive the rear speakers. So would like to ask around to see whether is there any real benefits.

 

[Skoda_Man]

Got extra $$$ of course will be best to have an amp to drive it lah. So you can play around with the gain to get the best imaging up front. cheaper way is to use the HU power to drive it.

 

Excellent writeup!!!!

 

I have a question in my mind for quite a while, maybe you can shed some light...

 

If the purpose of the rear speakers are just for rear fills, is it necessary to use an amp to drive them???

 

Thanks in advance.

[Guyver]

Who cares about the passengers, let them envy the drivers afterall we are the one who drive them around and need the comfort[;)] errrrr unless u are driving ur boss...

 

Yah man... anyway most of the time... we are the one listening what... if there's so many pple in the car... we would be chatting ... who would care about the music then? except the initial part where we boast about how good this... & that.... after that.. it's just sound in the backgrd...

[AutoS]

TurboB,

 

Rear fill spkrs mid-frequency best, not low frequency. And yes if want to get the best sound upfront forget abt rear pple want to shiok.

 

If rear pple want to shiok the ideal spkr position should be where the front door lock knobs usually are. At the door or worse at the parcel shelf cannot make it, but if really want to improve the rear a little ... can .... at the expense of the front. Then will have slightly improved sub-standard rear and lousy front.

 

So in 'Real Car Audio' tuning is always for the front and more biased 4 driver's seat.

 

AutoS

[Turbobrick]

So the lowest frequencies provided by the sub-woofer?

[AutoS]

Good observation, rear fill no need amp power get better sound. That's the beauty of it. When I see those hi-end installs use expensive amps to drive expensive spkrs in the rear and much money spent but sound no good becuz wrong spkr posn, wrong application, I also feel heart-pain.

 

[AutoS]

Lo frequencies from sub. Yup that's it. Right now it's mainly from Ur front cuz got no sub. So those poor little mids have to try bang out the sub, effects their ability to perform to their optimum for the mid-bass and mid and hi mid. Hi-mid overlap and hi's from tweets. That completes the picture rite? [angelic]

[AutoS]

Skoda,

 

Running 4" rear fills or even 5" from the HU absolutely no diff in sound if use amp. Want front rear balance control use HU fader-lah.

 

The idea is Step1 get that front perfect. Step2 get that rear fill set up to best support the front without being discernable, meaning will only need to play softly and Step3 Get the best sub going then make sure it blends in 4 upfront bass.

 

 

Got extra $$$ of course will be best to have an amp to drive it lah. So you can play around with the gain to get the best imaging up front. cheaper way is to use the HU power to drive it.

 

Excellent writeup!!!!

 

I have a question in my mind for quite a while, maybe you can shed some light...

 

If the purpose of the rear speakers are just for rear fills, is it necessary to use an amp to drive them???

 

Thanks in advance.

[Turbobrick]

AutoS, issit possible then to setup my sound such that the fronts have the CDT 6.5 components installed and the rear factory 6x9" tweets gets disabled to fill the bass for the fronts?