thangakambi

Dear friends,

I have JBL GTO 607C (2ohms) component in my Honda city car and I feel its really weak one. I am planning to upgrade this component.I just need some advice on what to get, like what would be the smartest buy if im planning to upgrade. I am thinking of getting PHOENIX GOLD RSD 6.5CS or DLS R6A.

veeman

iTrader: (3)

what do you mean by "weak"? Is the sound not loud enough, not good enough, lacks midrange, midbass, high frequencies, what are you looking for?

CanadianBronco

are the doors dampened?

Sinemeup

I am currently running the gto 5.25 comps in my car, I made small enclosures for the woofers (pvc pipe sealed with wood on one end and mdf ring on the other + lots of contact cement) sure there is still more to be desired (as always) though I am quite happy with how they sound, being 5.25's and all... I had them just mounted in the doors previously and there is a night and day difference to how they sound now, do some experimenting, I won't be doing any finger pointing.

hott-nix

iTrader: (7)

people are having very good results with those rsd's
a properly deadened door thats been sealed off and about 100w rms per side and you will be very happy

maltesechicken

I’d like to repeat some of the already mentioned questions:
What do you mean by weak?
Where are they installed?
If in the doors: Have you used sound deadening?

A few of my own questions:
Are you using an amp to power your JBLs?
If yes, which one? If no, there’s your problem.

Where is the tweeter mounted in relationship to the midrange?
If further away than 5” try reversing the polarity on the tweeter.

liv2ride

iTrader: (1)

like hott-nix said, alot of power is key.. !

hott-nix

iTrader: (7)

ive never heard of doing that before. what exactly does that do?

maltesechicken

As I'm sure that you know, sound waves have an actual length. So if the tweeter is a bit too far from the mid range, the tweeter could become out of phase with the mid. Move the tweeter further yet, and it will move back into phase with the mid. When speakers are out of phase they will cancel each other out.

If you have ever played with two speakers in phase and out of phase, you'll notice that there is a huge loss in sound when 2 speakers are out of phase. This all is due to sound wave cancellation - the waves from one speaker firing in the exact opposite pattern of the other.

With components the cancellation is never drastic because the crossovers make sure that the tweeter and the midrange are playing 2 totally different sets of frequencies. However, no cross over is perfect so there will be some overlap of frequency play near the crossover point. It is in this range that you might be able to hear something that is "not quite right." This could be due to the tweeter and the midrange cancelling eachother if they are out of phase. So, reversing the polarity on the tweeter would put them back in phase. (You don't want to reverse the polarity of the mid range because then the mid would be out of phase with the sub which would create a whole new set of cancellation issues).

I played with this when I had my Polk components in my Subaru. The tweeter was mounted in sail panel, and the mid was in the door location. I found out that my tweeter was far enough away from my midrange that it was back in phase. The audible difference was minimal, and I only noticed it when listening to tracks with an accoustic guitar.

My polks were not high-end components. I think that as you move into more high-end stuff (your ears will be pickier) you'll be more likely to hear imperfections like that.

hott-nix

iTrader: (7)

i didnt know that. good bit of info there