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Old 2nd April 2008, 10:47   #91
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Originally Posted by praveen_v View Post
now that has got me a little confused. Which is better? A low level preout or a higher level preout from HU, considering a good amp like the GTO75.4?? Is the extra cost paid for the HU justified?
1.front components and sub running from a 4-ch amp, rear co-axes off the HU
2.front components and the rear co-axes running from a 4-ch amp. no sub.how many pre-outs are required for both these setups?
The amp will work harder depending on how much power it is putting out not what the input signal level is (as long as the level is beyond a certain threashold which is usually less than 0.5V).

As long your HU puts out a clean 2V and your wiriing is good you will have no problems. a high pre out voltage (4V vs say 2V) might offer a marginally better S/N ratio but if you see the ral figures you'll realise why this is not really essential.

An example:
Say your HU has a output of 2V. Say noise is 100mV (which is considerable). 100mv/2V = 5%. If the HU's nominal output is 4V then this drops to 2.5%. the S/N ratio is only bettered by 3db. What is more important is to ensure that noise (good cables and good wiring ensure this) is eliminated.

Last edited by navin : 8th April 2008 at 11:27.
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Old 8th April 2008, 10:22   #92
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So I should be looking at a HU with 2 pre-outs for my setup. Thanks navin, deralte and B&T for all the clarifications. I'm sure it would have helped many BHPians get a better understanding.

One last thing I would like to get clarified is, will I be able to fit a 6x9 co-ax(The Illusion Electra EL 62) on the rear parcel shelf? Will it require a 5x7 to 6x9 adapter?
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Old 16th April 2008, 12:07   #93
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*** Bump ***

Guys, can a 6x9 co-axial be fitted in the stock rear location of the fiesta?? Will it require a 5x7 to 6x9 adapter??
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Old 19th April 2008, 14:59   #94
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*** Bump ***

Guys, can a 6x9 co-axial be fitted in the stock rear location of the fiesta?? Will it require a 5x7 to 6x9 adapter??
You will have to cut the sheet metal. You can also try hertz hcx570, they are very nice speakers priced at 9600, if im not wrong.
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Old 19th April 2008, 23:01   #95
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You will have to cut the sheet metal..
Quote:
Originally Posted by praveen_v View Post
Guys, can a 6x9 co-axial be fitted in the stock rear location of the fiesta?? Will it require a 5x7 to 6x9 adapter??

Why not use a 5x7 like anish has suggesged. Hertz, JBL, Blaupunkt, etc.. all sell atleast one model.
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Old 20th April 2008, 02:58   #96
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Also must try: Rainbow KX something coax,,, costs some 7K i think,,,, heard a pair recent very nice,,

Quote:
Originally Posted by anish9000 View Post
You will have to cut the sheet metal. You can also try hertz hcx570, they are very nice speakers priced at 9600, if im not wrong.
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Old 20th April 2008, 09:15   #97
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Hmm... I have got the GTO937. What's the best way to fit them without cutting metals in the fiesta?
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Old 20th April 2008, 09:31   #98
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Use a spacer on the parcel tray.
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Old 20th April 2008, 11:41   #99
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The 937 may fit in the stock location with a spacer, but that might make it jut out of the door more than an inch.

You could try out what works best yourself by first unscrewing the existing 5x7 (not sure if you have one), placing the 6x9 there as far as it can go in, and then measure how thick the spacer has to be to mount in that position. If this is too much, discard the idea of mounting it on the door location, and put it on the parcel shelf using MDF spacers.

Cutting of metal is not required if you are using spacers.
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Old 20th April 2008, 12:17   #100
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If Praveen wanted door speakers, he would have bought a 5inch coaxial.
Im 99% sure the JBL 937 is for the parcel tray.
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Old 20th April 2008, 13:31   #101
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I have used a spacer for fixing 6x9 speakers on my parcel shelf. It is the most simple way of installing them, no need to cut anything.
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Old 20th April 2008, 17:15   #102
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Quote:
Originally Posted by praveen_v View Post
Guys, can a 6x9 co-axial be fitted in the stock rear location of the fiesta?? Will it require a 5x7 to 6x9 adapter??
quoting my earlier post. The 6x9 are for the rear parcel shelf and in a fiesta it's a 5x7 stock size.
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Old 17th May 2008, 23:58   #103
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Time to revive the thread. I have a few questions..

now that the audio is setup [Install pics here], i am slowly trying out tweaking with the settings to get the kind of sound I want. I'm pretty happy with it right now, but would like to try out different settings and see how different it sounds.

Typically I hear songs at low-medium volumes( around 15-20 in the PIO4050) and like the bass kicking a little higher in low volumes. So is it ok that I keep the gain of the front compos as it is and increase the gain of the sub channels in the amp, or should i lower the gain of front compos and have the gain of the sub channel as it is??

Also, the PIO HU has the frequency and the Q factor settings. Something like
High 1Khz: Q1N
Low 80Hz:Q2W
and so on. All i understand is that the N stands for narrow and W for wide. I tried tweaking with these settings but found very little difference to the sound output and there are so many combinations. I need a little help in understanding these settings and what will be the typical values for the mids,highs and lows??
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Old 23rd May 2008, 16:40   #104
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<Bump>
I'm sure many are using Pio HU's. No one to help me with understanding those settings??
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Old 23rd May 2008, 21:07   #105
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@praveen_v, search the ICE section - there is a thread that explains the Pio terms. I think Prof. LBM had given the lecture. But, haven't you checked in the manual? I thought they had a graphical explanation in there.
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