Go Back   TeamTalk > General MasterCraft Topics > General Discussion

Reply
 
Thread Tools Display Modes
  #1  
Old 02-20-2009, 09:57 AM
kev88's Avatar
kev88 kev88 is offline
TT Enthusiast
 
Join Date: Sep 2007
Boat: 2008 X-2
Location: Smith Lake, AL
Posts: 203
pre amp

Searched and couldn't find a clear answer to this - probably because it's common knowledge

I installed a JL M2250 powering my two tower speakers last year - followed the installation instrutions specifically and everything works beautifully. I now want to add a JL M1700 and a JL subwoofer. Question - since I already have an amp driving my tower speakers, what do the pre-amp jacks do for me when adding another amp? I am sure I could install the sub amp just like the other and it would be fine.....

Also I want to mount the subwoofer in the stock X-2 location behind the drivers seat. Does the factory use any additional bracing for this, or is it held by the gel/glass only?

Thanks in advance
__________________
2008 X-2
Reply With Quote
  #2  
Old 02-20-2009, 10:26 AM
brucemac's Avatar
brucemac brucemac is offline
MC Devotee
 
Join Date: Feb 2008
Boat: 2003 Mastercraft X-2 MCX
Location: Pacific Northwest
Posts: 2,416
the 2250 has a pre-amp pass-through so you just "daisy chain" the two amps together. no y-cables, no splitters, etc. piece of cake.

not sure about backing for the sub. someone else will chime in soon. good luck with the upgrade!
__________________
íViva 205v!

2003 X-2 MCX
Reply With Quote
  #3  
Old 02-20-2009, 01:49 PM
kev88's Avatar
kev88 kev88 is offline
TT Enthusiast
 
Join Date: Sep 2007
Boat: 2008 X-2
Location: Smith Lake, AL
Posts: 203
Thanks Brucemac

I am assuming I still have to power the sub amp from the battery - or does the pre-out take care of this too?
__________________
2008 X-2
Reply With Quote
  #4  
Old 02-20-2009, 02:21 PM
brucemac's Avatar
brucemac brucemac is offline
MC Devotee
 
Join Date: Feb 2008
Boat: 2003 Mastercraft X-2 MCX
Location: Pacific Northwest
Posts: 2,416
Quote:
Originally Posted by kev88 View Post
Thanks Brucemac

I am assuming I still have to power the sub amp from the battery - or does the pre-out take care of this too?
no, you have to supply power and ground as well as a remote wire for the new amp. the preamp is simply the line level audio signal. the remote wire (typically blue) comes out of the HU and tells your amp(s) to turn on. typically, the HU remote wire can be split twice (two amps). anything more than that and it is recommended that you use a relay so that the amps receive the proper voltage required to signal turn on.

be sure to read the manual for proper gauge wire to use for power and ground. remote wire is typically 16 gauge.
__________________
íViva 205v!

2003 X-2 MCX
Reply With Quote
  #5  
Old 02-20-2009, 02:29 PM
flipper's Avatar
flipper flipper is offline
MC Addict
 
Join Date: Mar 2005
Boat: 1991 Prostar 190, fuel injected 302
Location: Under the radar
Posts: 5,083
Put in a distribution block for the power, and one for the ground instead of running everything to the battery.
__________________
Lots of power is good, more is better, too much is just right.

'91 prostar 190
Reply With Quote
  #6  
Old 02-20-2009, 02:31 PM
brucemac's Avatar
brucemac brucemac is offline
MC Devotee
 
Join Date: Feb 2008
Boat: 2003 Mastercraft X-2 MCX
Location: Pacific Northwest
Posts: 2,416
Quote:
Originally Posted by flipper View Post
Put in a distribution block for the power, and one for the ground instead of running everything to the battery.
yeah good point. i bought mine here:

www.darvex.com
__________________
íViva 205v!

2003 X-2 MCX
Reply With Quote
  #7  
Old 02-20-2009, 02:41 PM
kev88's Avatar
kev88 kev88 is offline
TT Enthusiast
 
Join Date: Sep 2007
Boat: 2008 X-2
Location: Smith Lake, AL
Posts: 203
Outstanding - thanks!
__________________
2008 X-2
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 06:56 AM.