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Old 17th May 2007, 01:51   #46
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HU - Blapunkt Bahamas MP46 (anyone has an idea how many preouts it has and will it be able to manage the configuration below) More about my HU here
Front - JBL GTO607c - 6.5k
Rear - JBL GTO 607c - 6.5k
Amp - JBL GTO 75.4 - 13k
Wiring - JBL Wiring Kit - 3k
Sub - Pioneer 307 - 3.8k
Damping - Wurth - 3k

Total - 35k

Now i would like to know is this setup fine? Will the sub do justice to the rest of the setup. I plan to run the front compos and the sub threw the JBL GTO 75.4

I feel, looking at the rest of the setup i need a better sub, the pio 307 wont do justice IMHO.
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Old 17th May 2007, 10:05   #47
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Quote:
Originally Posted by BUSA View Post
Now i would like to know is this setup fine? Will the sub do justice to the rest of the setup. I plan to run the front compos and the sub threw the JBL GTO 75.4

I feel, looking at the rest of the setup i need a better sub, the pio 307 wont do justice IMHO.
The setup is real good! It will sound great (Except like you said, the sub-section could be better).

The JBL GT4-12 will fit in wayyy better in this setup. But it won't do free-air well.

The Blau catalog I have with me says the Blau Bahamas has 2 pre-outs -- "4 channel preouts" to be specific & separately, a "Variable-sub out". The Website tech specs say 4 pre-amp outs & 1 subwoofer output. So 2 pre-outs for sure. Maybe a separate sub out, or maybe one of the preamps can be switched to a sub-out.

If you plan to stick with the 75.4 only, there is no problem either way. If you may add a mono amp later, it would be better if you have 2+1 preouts. A visit/call to your friendly neighborhood Blau Showroom should give you specific info. You should ask them if the HU has a sub-out separate from the 2 pre-outs.

EDIT: The website also says "Variable subwoofer output, plus 4-ch preamp outputs make it simple to add and control additional amplification". So it looks like the HU has 3 preouts in total. Goody!

Last edited by hydrashok : 17th May 2007 at 10:09.
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Old 17th May 2007, 10:20   #48
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Originally Posted by BUSA View Post
JBL 601.1 or JBL 301.1 or just use a 4 channel amp like JBL 75.4 to drive the sub and front compos?
Like LBM says the 601 will driver 2 subs better.

If you are getting the 601 for 2 subs you can live with the 60.4 for the componnents. The 75.4 is a much larger amp and I wonder if you will need all that power once the bass freq. are managed by the 601 and subs. The cost difference is 3K. I would think if you can afford the difference by all means get the 75.4 otherwise the 3K would be better spent on damping.
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Old 17th May 2007, 10:23   #49
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Quote:
Originally Posted by BUSA View Post
I feel, looking at the rest of the setup i need a better sub, the pio 307 wont do justice IMHO.
In a free air install (as long as the install is done well) you mght not ntoice the difference between the JBL4-12 and the Pio 307. Few have heard the 307 but we assume it will be very simialr to the 306. the 306C's bass in a sealed box was not as well defined as the 4-12's but that was a sealed box and this install is free air.
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Old 17th May 2007, 10:34   #50
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Quote:
Originally Posted by hydrashok View Post
EDIT: The website also says "Variable subwoofer output, plus 4-ch preamp outputs make it simple to add and control additional amplification". So it looks like the HU has 3 preouts in total. Goody!

the HU will have total of 5 RCA outputs...

1. front left
2. front right
3. rear left
4. rear right
5. subwoofer

the subwoofer is having single rca out because of the mono output and to run the amp one will have to use Y-lead to give the audio singal to both the amp the audio input....
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Old 17th May 2007, 10:41   #51
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Quote:
Originally Posted by navin View Post
Like LBM says the 601 will driver 2 subs better.

If you are getting the 601 for 2 subs you can live with the 60.4 for the componnents. The 75.4 is a much larger amp and I wonder if you will need all that power once the bass freq. are managed by the 601 and subs. The cost difference is 3K. I would think if you can afford the difference by all means get the 75.4 otherwise the 3K would be better spent on damping.
If i would have to install the setup I would have gone for 75.4......it might help in future upgrades....

Quote:
Originally Posted by navin View Post
In a free air install (as long as the install is done well) you mght not ntoice the difference between the JBL4-12 and the Pio 307. Few have heard the 307 but we assume it will be very simialr to the 306. the 306C's bass in a sealed box was not as well defined as the 4-12's but that was a sealed box and this install is free air.

Navin Ji Pioneer has three new models....

307 D2 (dual 2 ohms)
307 D4 (dual 4 ohms)
1207 F (free air model)

now this 1207 is a new series model made for free air applications....and I have not listed to it either.....i have heard both the 306 and the 307.....both sound different but the 307 is a little better than the 306....as it has a bit of more lowend....which when tuned will sound much better.....
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Old 17th May 2007, 11:54   #52
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Thanks Audio Gurus aka Hydra, Navin, LBM.

Quote:
Except like you said, the sub-section could be better
Any better Free Air Sub then the Pio 307F

Quote:
If you plan to stick with the 75.4 only
Yes plan to stock to 75.4, since the Sony Amps are crap IMHO, and the 60.4 is just 3k away from 75.4 and like you said its totally worth going for the 75.4 i wont regret it.

Quote:
Like LBM says the 601 will driver 2 subs better
Going for only one sub at the moment and no mono amp. But if i am going for a 307F(doesnot cost much) so i can go for two of these(8k) and add a 2 channel amp to drive the front compos and drive both the subs using the 75.4? Is this possible? Since a mono amp is quite out of my budget at this moment.

Quote:
1207 F (free air model)
Whats the cost of this? Are the specs on paper better then the 307F, i seriously think i need a better sub.
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Old 17th May 2007, 12:19   #53
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Quote:
Originally Posted by BUSA View Post
Going for only one sub at the moment and no mono amp. But if i am going for a 307F(doesnot cost much) so i can go for two of these(8k) and add a 2 channel amp to drive the front compos and drive both the subs using the 75.4? Is this possible? Since a mono amp is quite out of my budget at this moment..
The 75.4 costs 13K. a simialr 2 ch. amp would cost 7-8K. total 21K. Now if I had 21K to spend on amps

Other options are using a 60.4 for the front and rear and using a 301.1 for the subs.
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Old 17th May 2007, 12:22   #54
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Quote:
Other options are using a 60.4 for the front and rear and using a 301.1 for the subs
But the 301.1 wont be able to handle more then one sub?
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Old 17th May 2007, 12:26   #55
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Quote:
Originally Posted by BUSA View Post
But the 301.1 wont be able to handle more then one sub?
The 301.1 can drive 2 subs. LBM can provide you witht he numbers.

75.4 bridged to 4 ohms x 2 vs 301.1 at 2 ohms.
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Old 17th May 2007, 12:38   #56
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Quote:
Originally Posted by navin View Post
The 301.1 can drive 2 subs. LBM can provide you witht he numbers.

75.4 bridged to 4 ohms x 2 vs 301.1 at 2 ohms.
Quoting from LBMs post No. 30 in this thread

Quote:
If you plan to put 2 subs get a good mono amp like 601.1 the 301.1 will not be able to handle 2 subs......
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Old 17th May 2007, 13:17   #57
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What are Dual Voice Coil Type Subwoofers?

I found a link to the woofers available in India here

Whats the difference between TS-W1207F and TS-W125F?
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Old 17th May 2007, 13:30   #58
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Quote:
Originally Posted by navin View Post
The 301.1 can drive 2 subs. LBM can provide you witht he numbers.

75.4 bridged to 4 ohms x 2 vs 301.1 at 2 ohms.
this for the 601.1

424 watts RMS x 1 channel at 4 ohms and ≤ 1% THD + N
580 watts RMS x 1 channel at 2 ohms, 14.4V supply and ≤ 1% THD + N


this is for 301.1

204 watts RMS x 1 channel at 4 ohms and ≤ 1% THD + N
294 watts RMS x 1 channel at 2 ohms,14.4V supply and ≤ 1% THD + N


this is for 75.4

104 watts RMS x 4 channel at 4 ohms and ≤ 1% THD + N
284 watts RMS x 2 channel at 4 ohms, 14.4V supply and ≤1% THD + N

the 75.4 can drive two subs but it will more power than the 601.1 as the later is a class d-amp.....
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Old 17th May 2007, 18:44   #59
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Do Infinity have a free air sub?

Can this be used in free air?

What exactly is a crossover and what is its use, where can it be placed.

What are 2 way, 3 way mean?

Last edited by BUSA : 17th May 2007 at 18:50.
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Old 18th May 2007, 00:08   #60
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Do Infinity have a free air sub?

Can this be used in free air?

What exactly is a crossover and what is its use, where can it be placed.

What are 2 way, 3 way mean?
a) accroding to crutchfield.com they got 4
http://www.crutchfield.com/S-JaAyvX89bB0/cgi-bin/ProdGroup.asp?g=520&avf=N&nvpair=AG%5FGeneral|FFFr ee%5FAir&nvpair=FFBrand%7CInfinity

b) the crossover divides the musical spectrum into multiple parts allowing specialist speakers (or drivers as some call them) operate withing their "pass bands".

c) 2 way means that there are 2 speakers and 1 crossover point, 3 way 3 speakers and 2 crossover points and 1.5 way means that one driver is not crossover over at all and runs fullrange, 2.5, 3.5, 4,5 way mean that one driver is only partially crossovered (usually at only 6db/oct).
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