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

[muni]

Hi Sam, Navin,gunbir, JB and co:

Recently a friend of mine while fiddling with our system suddenly increased the volume on the head unit to the Max and the subwoofer suddenly got cut off.
Did a quick inspection of the 2 channel 200 watt RMS Clarion Amp which powers the 300 wattRMS Boston Sub in the sealed Box and found that the Protection circuit light was ON. The gain is set to 85 %, 12Db boost( max).

I just let it as it is as I thought that i may have to replace a fuse in the amp and today after about 3 days,when i switched on the system the Red light( protection light in the clarion amp) was gone and the Subwoofer is working.

What happened..did the sudden volume cutoff the amp and did it come back to normal after i switched off the car and switched it on.

Is the sealed sub enclosure drawing too much power from the amp and do i have to look at getting a port for the enclosure so that the woofer doesnt load the Amp..I guess the amp settings are on the higher side..

The enclosure is pretty small and will it affect the b*** characteristics if i want one..i need a properly tuned port ( Dia,length and location in the box)

Suggestions please.

[gunbir]

Originally Posted by muni

The gain is set to 85 %, 12Db boost( max).

Reduce B*** Boost... and set gain not more than 70%

Originally Posted by muni

What happened..did the sudden volume cutoff the amp and did it come back to normal after i switched off the car and switched it on.

Yes, it went into protection mode and once you cycled power, it came back on.

Your woofer isnt overloading your amp... YOU ARE. Set your gains properly and try and not use b*** boost (or as little as possible).

To give you an example, if your amp is like a car, you normally drive at 50kmph in second gear all the time, but your friend tried to run it at 90kmph and the engine died. Fortunately, when you set your gains and boost that high, you are effectively redlining your amp.

[muni]

Originally Posted by gunbir

Reduce B*** Boost... and set gain not more than 70%



Yes, it went into protection mode and once you cycled power, it came back on.

Your woofer isnt overloading your amp... YOU ARE. Set your gains properly and try and not use b*** boost (or as little as possible).

To give you an example, if your amp is like a car, you normally drive at 50kmph in second gear all the time, but your friend tried to run it at 90kmph and the engine died. Fortunately, when you set your gains and boost that high, you are effectively redlining your amp.

Thanks gunbir,i get your point. I had least expected my friend to increase the volume to the max in the split of a second. Have already reduced the b*** boost and the gain also so that the amp is not stretched to its threshold in the future :-)).

What about the port idea ( i do not have the dimensions right now but a typical looking enclosure without much of a volume to boast about)

[navin]

a ported box has to be designed as such. in most cases putting a port in an exsisting sealed box will produce good b***. either get a good ported box or stick with the sealed box.

[Sam Kapasi]

Oh dear. So now we cant say B***, Cl*** A, Gl*** Top and what not.

These words simply wont p*** through. Somebody has to inform the top br*** at TBHP. After all we arent trying to be cr***.

[mohit]

Originally Posted by Sam Kapasi

Oh dear. So now we cant say B***, Cl*** A, Gl*** Top and what not.

These words simply wont p*** through. Somebody has to inform the top br*** at TBHP. After all we arent trying to be cr***.

This is a classic.........!

[mclaren1885]

Originally Posted by Sam Kapasi

Oh dear. So now we cant say B***, Cl*** A, Gl*** Top and what not.

These words simply wont p*** through. Somebody has to inform the top br*** at TBHP. After all we arent trying to be cr***.

u exactly put into words what i had in my mind .. Navin can something be done about this ..

[s0uljah]

Originally Posted by s0uljah

....anything bigger than 4" will need to be mounted on the door panel, and also have fibreglass casing. If i get a 5-6" compo, Im scared to ask what your opinion is on directly installing them on the panels!

Can I get and MDF ring for the front and put in something bigger than 4" ?Its definately not going to be very aesthetically pleasing BUT... ?

Reason for going for a compo bigger than 4" is because my dad has these "tentative plans" to sell the car... I see that happening in 6 months, but too impatient to wait for a new car to ICE. So was wondering if I could get a 5-6" compo that I can use in my next car.

Thanks.

Originally Posted by Sam Kapasi

Oh dear. So now we cant say B***, Cl*** A, Gl*** Top and what not.

These words simply wont p*** through. Somebody has to inform the top br*** at TBHP. After all we arent trying to be cr***.

Heheh, Sam your hilarious. love the way you play the beloved english language

Till the problem gets fixed, go alpha numeric

Ba$S
BaS$
BOOM!!

[Sam Kapasi]

Well Souljah, most new cars take 5.25" in the front. But then what if you bought that and then ended up with a Octy or something? That would then be 6".
I suggest not changing your speakers if your in the market for a new car.

On another note, why are saturdays so quiet around here?

[s0uljah]

Dude, i love big butts too, i thought I needed counselling Or some people seem to think so. hehe

About being in the market for a new car - very undecided. My dad keeps discussing it with me but then its a blank. Lets see I will postpone it a few weeks. Problem is I log into the ICE section every day !!!! LOL

Thanks.
p.s : Octy not happening mate(fo sure). It would be a baleno(if I have my way and lady luck shines on me). Otherwise will be our existing lancer.

[Sam Kapasi]

Originally Posted by s0uljah

Dude, i love big butts too, i thought I needed counselling Or some people seem to think so. hehe

About being in the market for a new car - very undecided. My dad keeps discussing it with me but then its a blank. Lets see I will postpone it a few weeks. Problem is I log into the ICE section every day !!!! LOL

Thanks.
p.s : Octy not happening mate, it would be a baleno (and thats if lady luck shines on me). Otherwise will be a lancer probably.

Well then for your info, both the Baleno and theLancer accomodate 5.25" components in the stock positions.

[s0uljah]

Thanks sam. Will look into the JBL 5.25 coaxials // compos. There's loads of discussion regarding these in our ICE forums so I will do some searching. Might end up JBLfying the front of my santro

[Autophile]

You can accomodate 6.5" in the front door of lancer...use 1/4" baffle to mount the midrange. And the panel will also fit without any problems.

[s0uljah]

Jasdeep, Thanks for that.

Im tearing my hair out because I cant make a 100% decision because of the uncertainity against what car will replace my zipdrive. Guess Im going to be stuck with my current setup which im not very satisfied with :(

I think I might need to stop visiting the ICE forum for a few weeks!

[airfoil]

What is recommended, an MDF sheet or a 12mm sheet of plywood, for the rear shelf?

Please explain why as well!

Thanks!