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Old 1st September 2010, 16:36   #31
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Originally Posted by Crimson View Post
The front outputs from the 3sixty.2 drive channel 1& 2 of the amp so no issues there.
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I strongly suggest use the front output of the 360.2 to feed the front speakers and drive the sub through sub output through single rca output on 360.2...leave the Rear output on the 360.2 as it is.
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Originally Posted by navin
just the front RCA / speaker level outputs and generate front and subwoofer outputs from the 360.2
I think we were all saying the same thing.

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When I unplug one cable of the Y connector i notice the Sub volume reducing significantly.
Many amps use just one RCA input (usually Left channel) when used in bridged mode.
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Old 2nd September 2010, 12:09   #32
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Yes that's the one. I have set the crossovers myself through the 3Sixty.2
The Sub is set at Bandpass 30hz - 150hz and the Focals in the front are set at High Pass 90Hz.
I have got it to sound pretty descent now but I'm looking for a more tight bass which this does not seem to deliver.
I would request you to try to keep the sub between 30hz~84hz and let the comps come down just around 75hz. But this is just being me
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Old 3rd September 2010, 10:39   #33
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Originally Posted by valhallen.282 View Post
I would request you to try to keep the sub between 30hz~84hz and let the comps come down just around 75hz. But this is just being me
What slope do i use in the 3Sixty.2? 12dB or 24dB? I believe the Focal Amp can only do a 12dB Slope so should this match what is set in the 3Sixty.2?

Last edited by Crimson : 3rd September 2010 at 10:58.
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Old 3rd September 2010, 11:09   #34
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What slope do i use in the 3Sixty.2? 12dB or 24dB? I believe the Focal Amp can only do a 12dB Slope so should this match what is set in the 3Sixty.2?
If you are feeding the amp from the 360.2 then just use the XO in the 360.2 no need to daisy chain the XOs from the 360.2 and amp.
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Old 3rd September 2010, 11:17   #35
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Or in other words use the xover just on the 360.2 and keep the xover on the amp to flat. Adding the xover from the amp over the 360.2 could add in the phase shift.
You can HP the speakers at 80hz 24db with sub playing from HP @ 24db at 25hz to LP @ 12db/24db(which ever sounds better) at 80hz. If you crossing at 12db slope don't forget to reverse the phase or you could play around with the phase to make the sub blend with the front stage.
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Old 3rd September 2010, 11:21   #36
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Originally Posted by Invinsible View Post
If you crossing at 12db slope don't forget to reverse the phase or you could play around with the phase to make the sub blend with the front stage.
I dont have a phase switch anywhere - not on the amp and not in the 3Sixty.2. How would I do this? Do you mean reverse the polarity of wires on the Sub?

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Originally Posted by navin View Post
If you are feeding the amp from the 360.2 then just use the XO in the 360.2 no need to daisy chain the XOs from the 360.2 and amp.
This is how I have set everything up:


Filter & Slope Settings:
1. For the Fronts, the amp filter is set at All pass. 3Sixty.2 has the HPF ON @ 24dB slope set at 90Hz.

2. BUT for the rear channels which are driving the sub in bridged mode I have to set the amp to LPF otherwise the juicer (amp remote) for the sub does not function. So the amp is set at LPF 150Hz which will allow me to get the full 20Hz - 150Hz range.
The 3Sixty SUB channel has the infrasonic filter ON currently set at 20Hz - 130Hz again @ 24dB Slope.

In this case since I am daisy chaining the amp & 3Sixty.2 XO and considering that the amp can do only 12dB slope, what should the 3Sixty.2 XO be for this channel?

Amp Gain Settings:
1. Front Channel gain is about 28%
2. Rear Channel gain is about 60%

3Sixty.2 Output level Settings:
1. Front is set at -3dB
2. SUB is set at -2dB

Last edited by Crimson : 3rd September 2010 at 11:25.
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Old 3rd September 2010, 11:51   #37
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There is phase setting in 360.2 which can be used.
setting for the front looks fine. You can cross it at 80hz. However sub output should be from the sub channel from 360.2 instead of using the rear channel.
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Old 3rd September 2010, 11:53   #38
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Default Pictures of the re-done install and the new Sub enclosure that I made.

The 1.25 cuFt Sub enclosure I made from 18mm MDF. Still needs to be covered in some cloth.
Focal Solid 4 Bridged Mode question-img00003201009031023.jpg

Amp & 3Sixty.2 re-install done myself. Previously was under the seat.
Focal Solid 4 Bridged Mode question-img00004201009031023.jpg
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Old 3rd September 2010, 11:58   #39
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Quote:
Originally Posted by Invinsible View Post
There is phase setting in 360.2 which can be used.
setting for the front looks fine.
I'm pretty sure the 3Sixty.2 does not have a phase setting. I cant seem to find it on the control panel and neither is it mentioned in the specs:
Rockford Fosgate® - 3SIXTY.2

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Originally Posted by Invinsible View Post
However sub output should be from the sub channel from 360.2 instead of using the rear channel.
My amp has only 4 channels. The 3Sixty.2 sub out is indeed driving the rear amp channels feeding the sub. I've done this using a Y connector.

Last edited by Crimson : 3rd September 2010 at 11:59.
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Old 3rd September 2010, 12:16   #40
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Quote:
Originally Posted by Crimson View Post
Filter & Slope Settings:
1. For the Fronts, the amp filter is set at All pass. 3Sixty.2 has the HPF ON @ 24dB slope set at 90Hz.

2. ....filter ON currently set at 20Hz - 130Hz again @ 24dB Slope.

Amp Gain Settings:
1. Front Channel gain is about 28%
2. Rear Channel gain is about 60%

3Sixty.2 Output level Settings:
1. Front is set at -3dB
2. SUB is set at -2dB
If your front speakers are 6" drop the HPF from 90Hz to say 70Hz. Then drop the subwoofer LPF from 130hz to say 80Hz. Then slowly increase the sub LPF to compensate for road noise. Road noise is worst in the 50-80Hz region so a little overlap in this region compensates for this.

I set gains be ear so cant recommend any other process.
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Old 3rd September 2010, 12:30   #41
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Originally Posted by navin View Post
If your front speakers are 6"
The midbass is 6.5"

@Invinsible, @valhallen.282 have also made similar suggestions about XO settings. Will try the same when I get back home today.

But I am still confused about one thing. As I mentioned in one of my earlier posts i have to set the amplifier LPF ON for the rear channels so as to use the amp juicer (remote). This means I am daisy chaining the amp & 3Sixty XO setting for the SUB. I have to do this else the amp remote does not function.

With this background I have 2 questions

Question 1. What slope do i set for SUB channel in 3Sixty.2? 24 or 12 (amp can only do 12sB slope)

Question 2. I will set AMP LPF for sub @ 150Hz and them make the settings that you have recommended in 3Sixty.2. IS this correct?

Question 3. Will daisy Chaining cause a phase issue? If yes how do i fix this considering I do not have a phase setting anywhere.


Thanks for all your help guys!

Last edited by Crimson : 3rd September 2010 at 12:32.
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Old 4th September 2010, 11:00   #42
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Let's simplify a little. Use ONLY ONE crossover for each output set. This prevents any issues. If I have understood it right. And a 12db slope is the most used unless you want a sharper cut off.
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Old 6th September 2010, 13:44   #43
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Made the cross over changes - will listen to a few more songs before i comment on how different its sounding.

In the mean time I took on a small weekend project, Check this out:
http://www.team-bhp.com/forum/diy-do...ml#post2057414
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