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Sub output only


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timdog 
Member - Posts: 4
Member spacespace
Joined: December 23, 2003
Posted: December 23, 2003 at 5:33 PM / IP Logged  

Dipped into the Christmas bag early to see what the jolly one will bring.  I asked for a new stereo and gave some specs, it has RCA outputs for Front and Rear, and one for sub output.  I want to hook my 2 15's up, do I use a splitter on hte sub output to my amp input?

Thanks for the help

Geeque 
Silver - Posts: 310
Silver spacespace
Joined: October 07, 2003
Location: United States
Posted: December 23, 2003 at 5:53 PM / IP Logged  
You can run a single patch cable to the input on the amp.
Gary Kline
MECP Master Technician
timdog 
Member - Posts: 4
Member spacespace
Joined: December 23, 2003
Posted: December 23, 2003 at 6:03 PM / IP Logged  
Wouldn't that only allow me to drive one of the subs?  Like if I hooked it up to the L on the amp, then it would only drive the left sub.  If I hook the speakers in series then, I drop to 8 ohms...not good.  I don't know if the amp is 2 Ohm stable (recommends 4 Ohm).
dcgc 
Copper - Posts: 78
Copper spacespace
Joined: August 04, 2003
Location: United States
Posted: December 23, 2003 at 6:10 PM / IP Logged  
the *one* preout is mono therefore only one is needed for the sub amp. unless the sub amp is driving in stereo then only the one would be all you would need, If the amp recommends 4 ohm stay with that
2003 Silverado Ext. cab
Kenwood mp922
Kenwood kgc6042a EQ
JL Audio xr650-csi
MB Quart PSC 213
JL Audio 300/4
pair of JL Audio 12w6v2
JL Audio 1000/1
dcgc 
Copper - Posts: 78
Copper spacespace
Joined: August 04, 2003
Location: United States
Posted: December 23, 2003 at 6:13 PM / IP Logged  
* then only one would be all you would need*
correct that to state *if the amp is a stereo (2 channel) amp then you could use the splitter but you would still have a mono signal at the amp.
2003 Silverado Ext. cab
Kenwood mp922
Kenwood kgc6042a EQ
JL Audio xr650-csi
MB Quart PSC 213
JL Audio 300/4
pair of JL Audio 12w6v2
JL Audio 1000/1
timdog 
Member - Posts: 4
Member spacespace
Joined: December 23, 2003
Posted: December 23, 2003 at 6:15 PM / IP Logged  
My amp is set up for 2 channel, L and R...so a mono out would need to be split to drive 2 4-ohm subs.  Any modification outside that changes the current and I would like to avoid that.  Splitting it shouldn't do anything adverse is my question...besides cutting the 5V down to 2.5 each input.
dcgc 
Copper - Posts: 78
Copper spacespace
Joined: August 04, 2003
Location: United States
Posted: December 23, 2003 at 6:45 PM / IP Logged  
Is this amp bridgable?
Stable at 2 OHMS?
your right the 5V would be split to 2.5V each. The only difference this is going to make is the SQ, honestly I don't think there would be that much of a noticable difference on the subs.
2003 Silverado Ext. cab
Kenwood mp922
Kenwood kgc6042a EQ
JL Audio xr650-csi
MB Quart PSC 213
JL Audio 300/4
pair of JL Audio 12w6v2
JL Audio 1000/1
bberman1 
Gold - Posts: 2,314
Gold spacespace
Joined: March 11, 2002
Location: United States
Posted: December 23, 2003 at 7:16 PM / IP Logged  
Most likely the sub output on the head will have a 2 channel output. If it dose not then put a Y on the one channel and split it to 2 channels (there are no adverse affects other then the signal will be mono). But do you know the make and model of your headunit, amp and sub?
NaughtyLMnky 
Copper - Posts: 57
Copper spacespace
Joined: December 01, 2003
Location: United States
Posted: December 23, 2003 at 9:47 PM / IP Logged  
where do you get a head unit with a mono sub output?  I've never seen that.
Alpine Guy 
Platinum - Posts: 2,478
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: October 18, 2003
Location: Canada
Posted: December 23, 2003 at 9:52 PM / IP Logged  
its called buying quality products.....alpine....and so on...
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