Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q!

hydrashok · 27th December 2006, 22:52

The GTO1204BR is a 4 ohm sub. So you will have to use the CS300.1 in 4 ohm mode.
You can use the CS300.1 in 2 ohm mode when driving a 2 ohm sub, or when you are driving multiple subs, and the wiring style (series/parallel etc)
requires that you run the CS300.1 in 2 ohm mode.

navin · 28th December 2006, 10:46

If you use your 300.1 in 2 ohm mode it might not drive the 4 ohm sub as well. why?...well...i suspect there is a current limiter in the amp for 2 ohm mode so that the amp does not blow up.

now you dont need this current limitation in 4 ohm mode so why use it?

vikram_d · 28th December 2006, 10:58

Thanks for the clarifications guys. Never intended to use the amp in 2ohm mode. Just wanted to know what the difference was.

Sam Kapasi · 28th December 2006, 11:26

Quote:

Originally Posted by vikram_d

can i bridge my amp to 4 ohms? Question No. 2 is 2 ohms better or 4 ohms?

You cannot bridge a Mono amplifier.

Quote:

Originally Posted by hydrashok

The GTO1204BR is a 4 ohm sub. So you will have to use the CS300.1 in 4 ohm mode.
You can use the CS300.1 in 2 ohm mode when driving a 2 ohm sub, or when you are driving multiple subs, and the wiring style (series/parallel etc)
requires that you run the CS300.1 in 2 ohm mode.

Quote:

Originally Posted by navin

If you use your 300.1 in 2 ohm mode it might not drive the 4 ohm sub as well. why?...well...i suspect there is a current limiter in the amp for 2 ohm mode so that the amp does not blow up.

The CS300.1 is a mono amplifier with 2 basic modes. On and Off.

What is a 2 ohm mode?

You use a 4 ohm sub with it and it's in 4 ohms mode. 2X4 ohm subs in parallel, or a 2 ohms sub and it's in 2 ohms mode. *shrug*

There is no switch that "converts" the amp to any mode.

And vikram, the question of whether the amplifier runs in 2 ohms or in 4, is not something you can choose with your sub box. Your sub box is 4 ohms. Unless you connect 2 of them to your amp, it's going to be 4 ohms. So where is the question of better or worse?

vikram_d · 28th December 2006, 11:29

Is the CS300.1 a 2ohm amp or 4 ohms. Cause I'm a little confused after checking out its details on the JBL website. Link below. Please clarify..

JBL - Car Audio

Oops..looks like I posted my doubt a little too late. Thanks Sam.

Sam Kapasi · 28th December 2006, 11:34

No worries mate. How is the GTO1204BR, this is one box i have not had the pleasure of hearing in someone's car. Is it good? Is the CS300.1 driving it well?

vikram_d · 28th December 2006, 11:44

The sub is super. Much better than the Pioneer 306 DVC. The pioneer one is also very good but my problem was that I was not happy with the enclosure. The CS300.1 is driving it superbly. The effect overall is killer but I like it best with hard rock. Next time you're down in bangalore you can have a listen in my car.

The only reason I'm having so many doubts regarding the sub and amp are because of late I've heard a lot of stories about mis-matched combinations blowing up.

Sam Kapasi · 28th December 2006, 11:47

No need to worry about mismatch. You have a subwoofer amplifier, of sufficient power, driving a single 4 ohms subwoofer in a box. That's a simple combination.

Now relax and enjoy your music. Dhoom responsibly.

vikram_d · 28th December 2006, 11:51

Thanks Sam. Now I can dhoom without any worries. Not so sure about the responsibly bit... :-)

navin · 28th December 2006, 12:26

Quote:

Originally Posted by Sam Kapasi

What is a 2 ohm mode?
There is no switch that "converts" the amp to any mode.

Given the question asked I assumed there was a switch. If you know me you must know that I am so old that we did have amps with such switches, why in my early DIY days we used valves and had seperate taps to match the ouput impedances as well.

sans33 · 28th December 2006, 12:40

Quote:

Originally Posted by sans33

Hi,I have factory fitted Kenwood cassette player in my Baleno Altura and I have another Sony mp3 player with me.My father still prefer to listen his old cassettes,while I can't do without mp3.Is it possible to fix both units together in Baleno's 2 DIN slot,instead of investing in a double DIN HAU ?

No answer? Is it possible?

navin · 28th December 2006, 13:55

Quote:

Originally Posted by sans33

No answer? Is it possible?

if your cassette HU has pre out and the CD/MP3 HU has pre in maybe you can connect the pre out of the cassette to the pre in of the CD/MP3 HU.

esteem_lover · 28th December 2006, 16:07

A shoddy installer once told me that he will put a switch wherein i can operate any one of the HUs but with only 1 pair of speakers at a time, the front or the rear.

determinus · 28th December 2006, 16:32

Quote:

Originally Posted by navin

I have not heard ED subs so cat say. Shiva however are quite respected. I have a friend who has 6 Brahama subs doing sub duty for his home theater.

Thanks Navin. Gunbir advised against the ED, so ruling that out. Now that you mentioned HT, I have a query about my home subwoofer. Can I PM/email you on it? Or is there a place here that I can ask?

Thanks
DT

determinus · 28th December 2006, 16:38

There has been many individual discussions here about what are the right amps to use in ICE. Or, may be a list of amps that an uninitiated can go for safely.

Can we compile (if not already) a list of amps that one should avoid like plague? Would BOSS, MA Audio fall into that? I hear that newer amps from Kicker arent so great. How about Audiobahn?

What do you guys think? Is a no-go-list a decent idea?

27th December 2006, 22:52	#4936
hydrashok Senior - BHPian Join Date: Aug 2006 Location: In my Office Posts: 2,527 Thanked: 19 Times View My Garage	The GTO1204BR is a 4 ohm sub. So you will have to use the CS300.1 in 4 ohm mode. You can use the CS300.1 in 2 ohm mode when driving a 2 ohm sub, or when you are driving multiple subs, and the wiring style (series/parallel etc) requires that you run the CS300.1 in 2 ohm mode.
	() Thanks

28th December 2006, 10:46	#4937
navin Team-BHP Support Join Date: Mar 2004 Location: Mumbai Posts: 25,421 Thanked: 9,996 Times	If you use your 300.1 in 2 ohm mode it might not drive the 4 ohm sub as well. why?...well...i suspect there is a current limiter in the amp for 2 ohm mode so that the amp does not blow up. now you dont need this current limitation in 4 ohm mode so why use it?
	() Thanks

28th December 2006, 10:58	#4938
vikram_d Senior - BHPian Join Date: Jul 2006 Location: Bangalore Posts: 2,422 Thanked: 1,189 Times	Thanks for the clarifications guys. Never intended to use the amp in 2ohm mode. Just wanted to know what the difference was.
	() Thanks

28th December 2006, 11:29	#4940
vikram_d Senior - BHPian Join Date: Jul 2006 Location: Bangalore Posts: 2,422 Thanked: 1,189 Times	Is the CS300.1 a 2ohm amp or 4 ohms. Cause I'm a little confused after checking out its details on the JBL website. Link below. Please clarify.. JBL - Car Audio Oops..looks like I posted my doubt a little too late. Thanks Sam. Last edited by vikram_d : 28th December 2006 at 11:30.
	() Thanks

28th December 2006, 11:34	#4941
Sam Kapasi Distinguished - BHPian Join Date: Jul 2005 Location: Mumbai (but wat Posts: 6,935 Thanked: 2,483 Times View My Garage	No worries mate. How is the GTO1204BR, this is one box i have not had the pleasure of hearing in someone's car. Is it good? Is the CS300.1 driving it well?
	() Thanks

28th December 2006, 11:44	#4942
vikram_d Senior - BHPian Join Date: Jul 2006 Location: Bangalore Posts: 2,422 Thanked: 1,189 Times	The sub is super. Much better than the Pioneer 306 DVC. The pioneer one is also very good but my problem was that I was not happy with the enclosure. The CS300.1 is driving it superbly. The effect overall is killer but I like it best with hard rock. Next time you're down in bangalore you can have a listen in my car. The only reason I'm having so many doubts regarding the sub and amp are because of late I've heard a lot of stories about mis-matched combinations blowing up.
	() Thanks

28th December 2006, 11:47	#4943
Sam Kapasi Distinguished - BHPian Join Date: Jul 2005 Location: Mumbai (but wat Posts: 6,935 Thanked: 2,483 Times View My Garage	No need to worry about mismatch. You have a subwoofer amplifier, of sufficient power, driving a single 4 ohms subwoofer in a box. That's a simple combination. Now relax and enjoy your music. Dhoom responsibly.
	() Thanks

28th December 2006, 11:51	#4944
vikram_d Senior - BHPian Join Date: Jul 2006 Location: Bangalore Posts: 2,422 Thanked: 1,189 Times	Thanks Sam. Now I can dhoom without any worries. Not so sure about the responsibly bit... :-)
	() Thanks

28th December 2006, 16:07	#4948
esteem_lover Senior - BHPian Join Date: Jul 2006 Location: Madras/Py Posts: 7,556 Thanked: 513 Times View My Garage	A shoddy installer once told me that he will put a switch wherein i can operate any one of the HUs but with only 1 pair of speakers at a time, the front or the rear.
	() Thanks

28th December 2006, 16:38	#4950
determinus BHPian Join Date: Dec 2004 Location: Pune Posts: 279 Thanked: 16 Times View My Garage	Amps that one should avoid There has been many individual discussions here about what are the right amps to use in ICE. Or, may be a list of amps that an uninitiated can go for safely. Can we compile (if not already) a list of amps that one should avoid like plague? Would BOSS, MA Audio fall into that? I hear that newer amps from Kicker arent so great. How about Audiobahn? What do you guys think? Is a no-go-list a decent idea?
	() Thanks