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Frazer Porter
Newbie
VIC
N/A yet

Posts: 2
Reg: 09-2007

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Monday, December 17, 2007 - 04:10 pm, by:  Frazer Porter (Goatcatcher) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I've got a cheap Eonon 2 din head unit to put in my non-EMV Soarer. I'm no audiophile and am not expecting great things from it (will be playing FM and MP3s mostly), but I do like the extra "doof" from the factory sub, and would like to keep that in my new setup.

The headunit has 2 sets of RCA preouts, and I've also bought one of the Jaycar 4 channel amps that are recommended. My thoughts, after reading many of the posts in this forum, are to run the rear speakers from the headunit, then run the front speakers and sub from the amp, bridging 2 of the channels for the amp.

Is this the best way to go about it? If so, I'm assuming I can't use both the rear speaker outs and the rear preout channels? So do I split the front 2 channels and run them to the sub? And can I split at the amp end of the RCA run or should I run 2 RCAs?

My only other thought was that the amp has RCA-thru connections. Could I run the front and rear speakers from the amp and connect the RCA throughput to the factory sub amp via a Jaycar DI box? If so, would this be preferable to the other setup?

Apologies for the elementary questions, but thanks in advance for your help.
Brian Timms
DieHard
New South Wales
TT Soarer Goodness.

Posts: 838
Reg: 12-2006

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Tuesday, December 18, 2007 - 08:41 am, by:  Brian Timms (Turbo_brian) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

The head unit will have an option for either rear speakers, or subwoofer pre-out for the 2nd RCA output.

set the system so that RCA 1 is for the front, RCA 2 is for the subwoofer, and then run the rears off the speaker line for the rears.

bridge channel 3 and 4 into a single channel, and it will do the mono subwoofer signal without a problem, and then you connect the sub to it.

Be aware that the Soarer stock sub is a 2 ohm subwoofer.

B.
Frazer Porter
Newbie
VIC
V8

Posts: 3
Reg: 09-2007

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Tuesday, December 18, 2007 - 01:19 pm, by:  Frazer Porter (Goatcatcher) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks for the quick reply, Brian.

I guess the rear speaker/subwoofer option is set somewhere in the head unit software options? The feature doesn't appear to be documented in the instructions, but then they seem next-to-useless anyway.

I'll have to see what I can find in the menus when I get it powered up. I'm currently still trying to wrestle it into the console...
Frazer Porter
Tinkerer
VIC
V8

Posts: 6
Reg: 09-2007

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Saturday, January 05, 2008 - 01:49 pm, by:  Frazer Porter (Goatcatcher) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

> The head unit will have an option for either rear speakers, or
> subwoofer pre-out for the 2nd RCA output.

After playing with the software settings I can't find one, but have experimented with splitting RCA1 and using RCA2 for the sub. I think RCA2 gives the best result.

> Be aware that the Soarer stock sub is a 2 ohm subwoofer.

I see what this means now. The amp instructions warn against using 2 ohm speakers in bridged mode, so I'm just running the sub off one channel at the moment.

It sounds OK as it is, but I wouldn't object to it sounding a bit more bassy. Would I get a noticeably better result by bridging those channels?

If so is there any way I could do so with the factory sub, or would a 4 ohm like this make a satisfactory replacement (I'm not after anything that'll make my innards vibrate)?

http://www.ryda.com.au/Pioneer-TS-SW841D-8-Subwoofer-p/tssw841d.htm

Or does doubling the impedance counter the effect of bridging the channels? (Struggling to remember high school physics now...)

Edit: is there a way to properly quote from previous posts?

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