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Old 7th May 2007, 23:29   #16
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The GT4-12 is happiest in a sealed enclosure of 1 cu.ft. You'll need a reasonably good amp to drive it to its best, though.
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Old 8th May 2007, 09:04   #17
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Originally Posted by iraghava View Post
No MF, the JBL subs model number is GT 4-12.
Thanks IR I knew there were GT4-12 subs but thought he meant 2 12 inch subs.
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Old 8th June 2007, 08:32   #18
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what would be the size of the enclosure for a pioneer 305c.can somebody please post a pic of the kind of enclosure that you suggest so that i can show the pic to the installer and ask him to make a similar one for me.
thanks.the car in question is a zen and what direction should the sub be facing.towards the rear seats or the bootlid.i prefer tight bass.
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Old 8th June 2007, 09:06   #19
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found out that the sealed enclosure volume is 1.5cu ft.and the ported enclosure volume is 1.65cu.ft.what kind of box should i get made.a simple box or with the rear wall slanted .also please tell me which box suits this sub,a ported box or a sealed box.like i mentioned i prefer tight,crisp punchy bass.the amp powering the sub is a jbl cs60.4.please give me the dimensions of the box.
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Old 8th June 2007, 09:28   #20
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Quote:
Originally Posted by hellspawn View Post
found out that the sealed enclosure volume is 1.5cu ft.and the ported enclosure volume is 1.65cu.ft.what kind of box should i get made.a simple box or with the rear wall slanted .also please tell me which box suits this sub,a ported box or a sealed box.like i mentioned i prefer tight,crisp punchy bass.the amp powering the sub is a jbl cs60.4.please give me the dimensions of the box.
For tight bass, you need a sealed box. I think a 305c in a sealed box will be ok with the CS60.4. The 306c is inherently a bit ummm... un-tight, so maybe a slightly smaller box than recommended (maybe 1.3 cu.ft. or so) could also be nice. Gurus?

A box with the rear wall slanted would be nice, as it can fit snugly against the seat back, and would give the maximum space saving. And the more slanted walls there are in the box, the lesser the standing waves. 3/4 inch MDF should be best.
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Old 8th June 2007, 10:05   #21
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for 306 a 1 cuft will do fine and will give you good tight bass....the enclosure can be made easily but for which car....I presume ZEN.....
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Old 8th June 2007, 18:25   #22
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Originally Posted by low_bass_makker View Post
for 306 a 1 cuft will do fine and will give you good tight bass....the enclosure can be made easily but for which car....I presume ZEN.....
sirji but i have a 305c.yes its for the zen.
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Old 8th June 2007, 22:45   #23
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sirji but i have a 305c.yes its for the zen.
Oh ho it is 305 then it is a good sub and will play nice in a sealed box....

what is the earlier box dimensions.....it will help to give the new sizes....
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Old 9th June 2007, 06:24   #24
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Originally Posted by low_bass_makker View Post
Oh ho it is 305 then it is a good sub and will play nice in a sealed box....

what is the earlier box dimensions.....it will help to give the new sizes....
i really dont know about the existing dimensions.it was made in my pre-tbhp days so went with whatever the installer said.its actually a big box with the woofer and a pair of 6x9 placed in it.the sub and the speakers are partioned thus forming individual enclosures for all the three.the box takes the entire boot space of the zen..
as i have bought components for the front,the 6x9 are running off the hu and the comps aand sub are powered by a desi alpine amp.i want to move the 6x9's on a stock tray for the zen and have a small box for the subwoofer so that i have some space in the back.also i want to place the amp in the boot rather than have it lying under the passenger seat.
planning to buy a jbl cs 60.4.will it be able to power the 305c and the alpine spx177a components.
not interested in listening to music really loud but want good clarity and tight punch from the woofer.is the amp okay for such application.pls advise.and what cables should i use for the rca and power connections.
the specs of the comps are:
Elements 2-Way
Car Speaker Function Subwoofer • Tweeter
Size 6.5"
Nominal Power Handling 60 Watt RMS Technical Features Peak Power Handling 240 Watt
Frequency Response 35 Hz - 35 kHz
Sensitivity 90 dB
Impedance 4 ohm (Dual Coil)the jbl cs60.4 specs are:
RMS Power @ 4ohms: 4x60W
RMS Power @ 2ohms: 4x80W
RMS Power Bridged @ 4ohms: 2x160W
Frequency Response: 10Hz – 27kHz
S/N ratio: 75dBA
Variable Bass Boost (2x): 0..+6dB @ 45Hz
Crossover (2x): Flat/LP/HP (30-320Hz)
Input Sensitivity: 100mV – 6V
One pair full-range preamp outputs
the subs specs are:
Nominal Power Handling 400 Watt RMS Powered Non-Powered Technical Features Peak Power Handling 800 Watt Frequency Response 18 Hz - 2 kHz Sensitivity 89 dB Impedance 4 ohm (Dual Coil)
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Old 9th June 2007, 08:46   #25
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the 60.4 is good for the speakers but it will fail when it comes to subs.....as 150 is a little less power.....I would recommend to go for 75.4 or the new limited edition amp as it will cost approx 11k less......
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Old 9th June 2007, 12:10   #26
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Yes Helli, those Alpine Xtypes deserve more power, go for the 75.4
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Old 12th June 2007, 00:04   #27
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Yes Helli, those Alpine Xtypes deserve more power, go for the 75.4
75.4 isnt available anywhere.can somebody please tell me where i can get the limited edition or the 75.4 in ncr region.
any other options gunbir???
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Old 15th June 2007, 17:20   #28
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Quote:
Originally Posted by hellspawn View Post
75.4 isnt available anywhere.can somebody please tell me where i can get the limited edition
It should be available now, in New Delhi. The LE.
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Old 15th June 2007, 17:26   #29
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Originally Posted by Sam Kapasi View Post
The LE.
even I want one.and the MRP is 12990
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Old 15th June 2007, 19:07   #30
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Quote:
Originally Posted by low_bass_makker View Post
even I want one.and the MRP is 12990
Why do you need an amplifier LBM? And the MRP is 10,990/- I am telling you, don't pay more than that.
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