Audio Guide For Dummies

[Naumaan_Khan]

its basically the enclosure that houses the sub-woofer. they can be of different specs depending on the sub-woofer and listening environment to be achieved.

types: Sealed, Round ported, L-ported, bandpass etc

each of the box will give u a different response from your subwoofer.

Thanks. so it means it is woofer box / some say Peti
And we can achieve different type of sound by changing it??

Matlab agar same base sun sun kay bore hojaao then change
its enclosure ?? (H)

[Nickelodeon]

guys tell me Good RCA wire price..
my components suddenly stop ..

[Naumaan_Khan]

Aslam o Alaikum

Sir g sound problem ho gaye hay once again

Accelerator kay sath shooon shoon ki sound aati hay rear speakers say
even pre off bhi ho . Amp nikaal kar jab seat par rakhtaaa hoon
then no sound and jab seat k neecay tu again sound starts

And yeh problem kal say start hui hay. and iss nay meri mat maar di hay

I have mehran. Plz help

[roms]

Search on this forum for alternator whine. The issue is caused when you have naked wire, or signal wires/ RCA are too close to the power wires.

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[DrShaggy]

or a bad grounding point.
or gain set too high.

[Naumaan_Khan]

Search on this forum for alternator whine. The issue is caused when you have naked wire, or signal wires are too close to the RCAs.

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or a bad grounding point.
or gain set too high.

Thanks a lot

first i thought it will be some device called "Alternator whine"
then i googled it a lot on net.

Speakers cables, woofer cables, battery and ground sab
kareeb hojati theen when i tried to put Amplified under the seat.
so speaker / woofer cables ko baaki cables say door kardiaa.

And problem resolved now (H)

[roms]

Thanks a lot

first i thought it will be some device called "Alternator whine"
then i googled it a lot on net.

Speakers cables, woofer cables, battery and ground sab
kareeb hojati theen when i tried to put Amplified under the seat.
so speaker / woofer cables ko baaki cables say door kardiaa.

And problem resolved now (H)

Glad its sorted

[Humer]

Hi Guys,
I need advice on getting a new audio system for Suzuki Baleno. Requirements are:

1. CD/USB player (fast read speeds and good file support)
2. 2 speakers for the rear
3. I am connecting existing front speakers but if budget allows will buy 2 additional front speakers as well

Budget is 20K max. Priority is clean sound.

If you can recommend a good audio supplier fitter in Karachi it will be great.

[zeeshan.javed.108]

Hey Audio Gurus, need help

I currently have 4 speakers installed in my curoe, with a Pioneer Pre (Can't remember the model but it is USB/AUX/MP3) and a 3600W amp.

I am planning on installing a 12" Kenwood Sub, now I was wondering whether I should use the same amp or get a new one, so as to get the maximum out of the sub.

Plus, also recommend some good bass tube specs so as to get the Maximum kick out of the sub B)

P.S I really have no idea about watts,amps or any electrical equipment. So please use layman terms

[madhouse12]

instead of the kenwood sub, go for jbl gt5-12 sub. it can be run on a decent 4/2 channel amp and gives better and louder sound than kenwood.

[zeeshan.javed.108]

instead of the kenwood sub, go for jbl gt5-12 sub. it can be run on a decent 4/2 channel amp and gives better and louder sound than kenwood.

Umm I am actually swapping the sub from my other car, so I really have no choice

But do you think I should use the same amp to power 4 speakers and a sub ?

[zeeshan.javed.108]

@madhouse12

BTW sir g, any idea on the price & availability of gt5-12 in Pindi ?

[roms]

Sherry bhai has two gt5 subs at sound valley saddar

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[Naumaan_Khan]

Sir, What is the difference in result i.e. output of sound of Sub woofer

if it is Single voice coil woofer OR Double voice coil woofer???

Actually I am having Pioneer 309S4 which I think is single voice coil
so I want to know what I will be missing in sound quality

Thanks

[DrShaggy]

The voice coil configuration has no effect on sound quality or woofers characteristics. The different voice coil configurations are there to make it easier to match the woofer to the amp and vice versa.

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[madhouse12]

there is no difference in sound quality of a S4, D2 or D4. the voice coil configurations are only to ease the hookup of a sub to the amp. for example

an S4 is a single coil of 4 ohms. almost all 2/4 channel amps are 4 ohms bridgeable. so you can hook them up with a 2/4 ch amp easily.

a D4 is a dual coil sub with two voice coils of 4 ohms each. each voice coil handles half of the total load on the sub. so if a particular S4 e.g. has a single voice coil that handles 400 watts rms, a D4 will have two that handle 200 rms each. total watts will be same, output will be same. but a D4 can be hooked up at either 2 ohms or 8 ohms. this comes in handy as many of the branded monos are only 2 ohms stable. OR it comes in handy when you are using two subs. so you can bring the total impedance at 1 ohm and give decent power to both. (a 1 ohm stable mono amp will give most power at 1 ohm). you can also hook 2 D4s at 4 ohms total impedance but that happen when the amp gives enough juice at 4 ohms.

a D2 can either be hooked at 1 or 4 ohms. in a way, as a single sub, D2 would be the best option to get as, when you are in a tight budget, you can hook it at 4 ohms to a 2/4 ch amp and later get a mono and use it at 1 ohm. for two subs, the hookup will be at two ohms.

so if you have a 2/4 channel amp, get a S4 or D2
if you have a mono amp stable upto 2 ohms and gives enough juice for one sub (at 2 ohms), get a D4
if you have a mono amp stable upto 1 ohms and gives enough juice for one sub (at 1 ohm), get a D2
if you have a mono amp stable upto 2 ohms and gives enough juice for two subs, (at 2 ohms), get two D2 or two S4
if you have a mono amp stable upto 1 ohms and gives enough juice for two subs, (at 1 ohm), get two D4

above of course is just an example. there are other options available but this is just to give you an idea.

lets suppose a sub is 400 watts rms and has S4, D2 and D4 versions.

S4 getting 400 rms from a mono amp at 4 ohms will give same sound as D2 getting 400 rms at 4 or 1 ohms and that will be same sound as D4 getting 400 watts rms from an amp at 8 0r 2 ohms.

the difference in sound, if any, will be because of a particular amp's ability to play clean music at a particular impedance.

[madhouse12]

i had a headache before writing the above post... now its gone.

I have a confession to make....

i am addicted to pakwheels

[Naumaan_Khan]

The voice coil configuration has no effect on sound quality or woofers characteristics. The different voice coil configurations are there to make it easier to match the woofer to the amp and vice versa.

Sent from my GT-I9500 using Tapatalk

Thanks a lot

there is no difference in sound quality of a S4, D2 or D4. the voice coil configurations are only to ease the hookup of a sub to the amp. for example

an S4 is a single coil of 4 ohms. almost all 2/4 channel amps are 4 ohms bridgeable. so you can hook them up with a 2/4 ch amp easily.

a D4 is a dual coil sub with two voice coils of 4 ohms each. each voice coil handles half of the total load on the sub. so if a particular S4 e.g. has a single voice coil that handles 400 watts rms, a D4 will have two that handle 200 rms each. total watts will be same, output will be same. but a D4 can be hooked up at either 2 ohms or 8 ohms. this comes in handy as many of the branded monos are only 2 ohms stable. OR it comes in handy when you are using two subs. so you can bring the total impedance at 1 ohm and give decent power to both. (a 1 ohm stable mono amp will give most power at 1 ohm). you can also hook 2 D4s at 4 ohms total impedance but that happen when the amp gives enough juice at 4 ohms.

a D2 can either be hooked at 1 or 4 ohms. in a way, as a single sub, D2 would be the best option to get as, when you are in a tight budget, you can hook it at 4 ohms to a 2/4 ch amp and later get a mono and use it at 1 ohm. for two subs, the hookup will be at two ohms.

so if you have a 2/4 channel amp, get a S4 or D2
if you have a mono amp stable upto 2 ohms and gives enough juice for one sub (at 2 ohms), get a D4
if you have a mono amp stable upto 1 ohms and gives enough juice for one sub (at 1 ohm), get a D2
if you have a mono amp stable upto 2 ohms and gives enough juice for two subs, (at 2 ohms), get two D2 or two S4
if you have a mono amp stable upto 1 ohms and gives enough juice for two subs, (at 1 ohm), get two D4

above of course is just an example. there are other options available but this is just to give you an idea.

lets suppose a sub is 400 watts rms and has S4, D2 and D4 versions.

S4 getting 400 rms from a mono amp at 4 ohms will give same sound as D2 getting 400 rms at 4 or 1 ohms and that will be same sound as D4 getting 400 watts rms from an amp at 8 0r 2 ohms.

the difference in sound, if any, will be because of a particular amp's ability to play clean music at a particular impedance.

i had a headache before writing the above post... now its gone.

I have a confession to make....

i am addicted to pakwheels

At first thanks a lot for your valuable post. Your reply was very informative and a bit technical :P.
So required a little time to understand it :P. And then I went for Moharam Holidays. So please accept
my apology for being late.

Now I have come to know that there is no difference in sound quality of My S-4, as majority of guys
on forum talks about D-4 so I was thinking my woofer is of lower side than D-4.

Two question raises in my mind. May be stupid questions

1) Can we connect 200 watt of D-4 to one channel from Amp, and the other 200 watt of D-4
to other Channel of Amp. If so then what will be any difference in sound quality / base?

2) If we have small Amp Or have less wattage free for D-4 available from Amp
we can hook it to just one coil for 200 watts??

Thanks

[roms]

Thanks a lot

At first thanks a lot for your valuable post. Your reply was very informative and a bit technical :P.
So required a little time to understand it :P. And then I went for Moharam Holidays. So please accept
my apology for being late.

Now I have come to know that there is no difference in sound quality of My S-4, as majority of guys
on forum talks about D-4 so I was thinking my woofer is of lower side than D-4.

Two question raises in my mind. May be stupid questions

1) Can we connect 200 watt of D-4 to one channel from Amp, and the other 200 watt of D-4
to other Channel of Amp. If so then what will be any difference in sound quality / base?

2) If we have small Amp Or have less wattage free for D-4 available from Amp
we can hook it to just one coil for 200 watts??

Thanks

Big No. It can be only done with high end amps which have a sync mode. Two same amps on sync mode can power a dvc sub.

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[madhouse12]

theoretically it can be done. but u will need to match the gains exactly and a lot of other things need to be taken into cosideration which will make it not practical. in the amps mentioned by roms (sometimes referred to as strap-able) these things are taken care of by the amp so it can be done there. people have run dual voice coil subs with only one voice coil hooked to amp but that will only give you half of the power. pros and cons are there