[hydrashok]

Originally Posted by jCube

Thanks for the info Navin. 6K more for the 345 doesnt make much sense to me atleast for now. I'd prefer the sweeter sounding amp.. but I'd rather stick to JBL and save some money... Does your comment suggest that the JBLs are going to be dull sounding with just a lot of power. How does 75.4 fare in the clarity front? And distortion at high volume? soundstage?

jCube, I really don't think you need to sweat 300w vs. 245w. Especially as these are just peak figures. I think any real difference will be apparent only if you really blast the life out of the sub at high (read insane) volumes.

I really think you'll get enough power from the 75.4 for the sub. And you save 6K by not choosing the Alpine. Put away the 6K for damping the car later, when the sub has shaken every piece of trim loose. Or towards rear speakers.

I'm sure Navin wasn't dissing the JBL. He was just saying that between the Alpine and the JBL, the Alpine may sound sweeter. But the JBL will have more uhhh... attack? (= aggressive kicking bass. I read this somewhere recently, but don't remember where). Which does not mean boomy or muddy or dull. And, let me tell you, Navin's ears are not like ours. We may not even be able to make out any difference between the two.

-------- OT --------
I apparently use "Especially" a lot. I just noticed. Hmmm... Do we have a psychoanalyst here?
--------------------

[jCube]

In one of the posts by rsjaurr, I read that he had installed dynamat xtream in his car.

Is it available in India? With some distributor in South India?

Whats the price/sq feet?

[hydrashok]

Emperor in Kochi (Palarivattom) does Dynamat & Wurth damping jobs. Speedzak had done a really detailed damping job on his Alto using Wurth at Emperor. He spent about 10K for the job.

[suren181]

Recently upgraded my ICE on my Santro by Junking the rear 4 way 6x9 Kenwood speakers and replacing them with JBL GTO937, a JBL CS1204B woofer and have paid up for a JBL CS60.4. At the moment the Dealer here at Hyderabad has been unable to get delivery of the AMP since Thursday (26.10.06) and Have been using an old Alpine amp till he gets stock f the CS60.4.

Now the question is would the CS60.4 be the right amp to power the rear speakers and the Woofer that I have now fit or do you all think I should have something else fitted... The Alpine that I have is doing a fine job albeit a fillin for the JBL...

Would be grateful cos I dont wanna be stuck with an underpowered amp... but my budget isnt too High anyways...

[suren181]

Guess by tomorrow I'd have to finalise the setup eventhough it's paid for... would upgrade and wanna be Prim and Propah for the next t-BHP meet at Hyd, would not wanna be told you shudda asked.... after all guys I ride a Santro, but one whichI Love for it's loyal and lovely performance... Will keep it going as long as I can, Inspite of being forced to go for a bigger car by family..... I know many never ever consider the Santro to be a Ride but I love mine... Waiting to show you guys what my ride is all about, thanks to you guys... The ride quality kicked in after the Tyre and alloy chage, The ICE being upgraded would have neve thought of otherwise.. you guys rock....

[Vid6639]

Suren181, the amp is a good choice. but what are you using for the front?
Do you have components in the front?
If you do it will be better to power the front compos by 2 channels of the amp and bridge the other 2 to power the sub.
If you dont have proper speakers in the front your sounstage will be towards the rear which will be unnatural.
The ideal setup is to have your souundstage towards the front.

[hydrashok]

Originally Posted by suren181

Now the question is would the CS60.4 be the right amp to power the rear speakers and the Woofer that I have now fit or do you all think I should have something else fitted... The Alpine that I have is doing a fine job albeit a fillin for the JBL...

Suren, the amp will power the rear speakers perfectly. But the sub may not get the all the power it deserves. The 60.4 puts out about 160w RMS bridged (2 channels bridged). The sub needs about 250w RMS power to run to its medium to max (max is 1000w but that's the max, not the steady power). This should do for most people, but if you are looking for a back massage, you will not get it. And the sub is a sealed sub (which is great for SQ). But sealed subs are best fed the min power (250w in this case) or power closest to its max power (1000w in this case). So, the 60.4 will do the job well enough, if you are not looking for an SPL setup.

Is that Alpine you are running now yours? If it is, why don't you use the 60.4 for your fronts and rears and use the Alpine for the sub?

And as VID asked, what are you runing in the front? You'll need comps up front for best effect.

[suren181]

Thanks VID & HYDRA. Actually the front speakers are 2 way spekers from about a year old upgrade... you guys are right about the front soundstage... Have no juice up front at all... shall go by your advice, fix up the 60.4, go in for JBL comps in the front and use the 60.4 to power the Front comp. and the woofer... Actually was looking for someone to second my thought on changing to JBL in the front too... Thanks guys, once again

[navin]

Originally Posted by hydrashok

I'm sure Navin wasn't dissing the JBL. He was just saying that between the Alpine and the JBL, the Alpine may sound sweeter. But the JBL will have more uhhh... attack? (= aggressive kicking bass. I read this somewhere recently, but don't remember where). Which does not mean boomy or muddy or dull. And, let me tell you, Navin's ears are not like ours. We may not even be able to make out any difference between the two.

1. Yes the JBL is a bit more agressive compared to the Alpine. This translats beautifully when it comes to Rock music. Now remember the differences are minor.
2. I have perfectly normal ears. I am certain anyone with normal ears will be hear exactly what i hear the trick I find it knowing what to listen for. Lot of exposure to live music helps.

Originally Posted by suren181

..., fix up the 60.4, go in for JBL comps in the front and use the 60.4 to power the Front comp. and the woofer... Actually was looking for someone to second my thought on changing to JBL in the front too... Thanks guys, once again

What is the model number of th alpine amp?

[suren181]

Originally Posted by navin

What is the model number of th alpine amp?

Navin actually that Alpine amp aint mine... He (the installer) had fixed up the same for me as a substitute till he gets the JBL across....

Well I have to profess that at my home all I have is A Sony Home theatre system bought ages back and its this forum thats making me move on the road.... actually get my *** outta office to meet clients .. so that I could be with the car most of the time.... Thanks to y'all TBHP Rocks and so does JBL

[suren181]

Navin, Sam and all the other gurus... Am as usual and again requesting you for advice...

See, I have now changed my HU to KVC KD DV6101 a DVD HU, this I did when I went to get my JBL CS60.4 amp which was connected to my JBL CS1204B, a pair of JBL GTO937 and a pair of JBL GTO17t tweeters. While I was getting this done I got them to do it with JBL original Cables with one extra cable of Blaupunkt which was needed. Up front I retained my existing Blaupunkt 2 way Coaxial speakers 4" since am not too intent on altering the Door area of the Santro.

Now getting to my problem before I had the CS60.4 fitted this setup was powered by an Alpine V12 MRV F705 which basically is a 4/3/2 channel amp with an RMS value of 85w x 4channels at 4ohms and a peak of 250 x 4... The setup worked alright, but the CS60.4 is getting overheated, if I might say after about 15 or 20 minutes of play and would cease working (the 3 lights on the amp would keep blinking). On waiting for about 1/2 an hours time it would work again.

I now have the installer's amp (Alpine) back into the setup and it works fine.

Now I want a JBL amp back and preferably the CS60.4. Is it that the tweaking/tuning on the amp could be wrong thus causing the overheating problem? Or is it that it is just too underpowered for the connected load? I understand that the CS60.4 is 60w RMS/channel and the Alpine is 85w RMS/channel...

[speedzak]

Maybe the amp could be faulty (Which is very very unusual).

You should also check how the new amp was wired. The JBL amp is better to be wired for a 2 ohms output I think.

Check if the tuning was proper in the amp. Maybe your installer or the boys fowled it up!! The gains could be well on the wrong side if not paid attention to.

Where did you get it installed?
Why don't you get it checked by another good installer too?

[suren181]

Speedzak.... thanks a ton for the quick response.. Well I just have no idea about how it was wired nor how many ohms it was set for... The truth is I was there all the time but have no gnaan on this kind of stuff... The problem is the JBL is now with the installer and I have the Alpine in the car.... So taking this to another installer seems out of the picture... My installer's advice to keep the old Alpine of his at the same price that I paid for a CS60.4 (9K i.e)... but even if it is a bargain I have this on my mind to ensure that its JBL all the way in my car and not to mix... My future mod to the ICE would be a GTO607 Component in the front and a JBL monoblock amp for the Woofer... The ICE is getting its juice but i've ran out of it temporarily (finances i.e)...

I was just wishing to know if it was a common problem as you have mentioned and was looking to make a checklist and try it all out at one go on Monday or so such that I would not have to strain my resources further just now itself...

Of Topic! By the way I have to congratulate you on the lovely looking ICE setup in your car and am also curious to know whether its back from repairs? If so have you changed the color or done some mods on it?

[speedzak]

I am very sorry to tell you, But that Alpine you have looks like a fake!

Check these pictures:



If your amp is same as the pics above, then don't consider keeping that amp. Tell him to sell you a genuine JBL amp.

But I would recommend you to find a better installer in your neighborhood.

And the Off topic thingy is better discussed in PM!!

[aZa]

Heheh u get the same "Fake" (read chinese) ALPINE 705 amps in BLACK too, Once u connect all the four channels you have a MAJOR wineeeeeeeeeee.
Lots of these here in NOIDA

Alpine 705





Alpine F602 (2channel)



My old babies !! hahah

I'd say ........Stay away!