Cherokee Chat General non-tech Cherokee chat
XJ/MJ/ZJ/WJ

Sub, Amp combo question

Old 03-01-2012, 09:31 PM
  #1  
Seasoned Member
Thread Starter
 
TGL2000's Avatar
 
Join Date: Sep 2010
Location: Media, Pennsylvania
Posts: 457
Likes: 0
Received 0 Likes on 0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default Sub, Amp combo question

If I were to run a single 12" thats pushing 600 watts rms, ( http://www.sonicelectronix.com/item_...-11P3D412.html ) What kind of amp would i want to run with it? Would a mono or a 2-channel work? Ive had a couple systems before but this part always confuses me. I only need an amp for one sub, so i would assume mono but i wouldnt want to order the wrong amp. Thanks for any help guys!
Old 03-01-2012, 09:45 PM
  #2  
Newbie
 
bsumpter's Avatar
 
Join Date: Dec 2011
Posts: 21
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Default

You could run either. I prefer mono amps. just look for something with a 2 ohm load.

prob something like this if you want to go RF.
http://www.sonicelectronix.com/item_...ME-R500-1.html

Old 03-01-2012, 09:54 PM
  #3  
Seasoned Member
Thread Starter
 
TGL2000's Avatar
 
Join Date: Sep 2010
Location: Media, Pennsylvania
Posts: 457
Likes: 0
Received 0 Likes on 0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default

Isnt that considered "bridging" ? i could be mistaken
Old 03-01-2012, 09:59 PM
  #4  
CF Veteran
 
mr white's Avatar
 
Join Date: Aug 2011
Posts: 3,648
Likes: 0
Received 4 Likes on 4 Posts
Model: Cherokee
Default

I would use this one:
http://www.onlinecarstereo.com/CarAu...t_REF1800.aspx
It's better to "overpower" a sub than "underpower" it...
"bridging" is when you want a two channel amp to act like a monoblock. Some amps do not allow for this.
Wiring a sub like that is just wiring it's voicecoils in parallel which effectively cuts the overall load in half. If you wired them in series, it would double the load.

This amp would also work, keep the gains lower though:
http://www.onlinecarstereo.com/CarAu...ONX11000D.aspx


This one is also good:
http://www.onlinecarstereo.com/CarAu...rt_FX1600.aspx

I wouldn't power it with anything LESS than 600wrms into 2ohms.
Old 03-01-2012, 10:07 PM
  #5  
Seasoned Member
Thread Starter
 
TGL2000's Avatar
 
Join Date: Sep 2010
Location: Media, Pennsylvania
Posts: 457
Likes: 0
Received 0 Likes on 0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default

ok i misunderstood the diagram, my current sub is bridged. And i definately want the sub fully powered if its only going to be a single sub. I am liking the second amp you posted. Since the sub says its 4 ohms, would i still want a 2 ohm amp or however that works?
Old 03-01-2012, 10:13 PM
  #6  
CF Veteran
 
xj_maniac_newb's Avatar
 
Join Date: Sep 2009
Location: Summerville, Ga
Posts: 6,322
Likes: 0
Received 5 Likes on 5 Posts
Year: 1995
Model: Cherokee
Engine: 2.5 4 cyl.
Default

I agree completely with "overpowering" over "underpowering". Same thing with amp wiring, I use a minimum of 3awg on all my systems to be certain my amp is not limited on the power it can draw. My rule of thumb is take the minimum wire size required and go up by at least one. NEVER go under on wire size, my buddy thought he was smart and used 8 awg on a 2000W amp, Then wondered "why does it sound funny?" when it fried a 2 foot section of the wire.
Old 03-01-2012, 10:15 PM
  #7  
CF Veteran
 
mr white's Avatar
 
Join Date: Aug 2011
Posts: 3,648
Likes: 0
Received 4 Likes on 4 Posts
Model: Cherokee
Default

Originally Posted by TGL2000
ok i misunderstood the diagram, my current sub is bridged. And i definately want the sub fully powered if its only going to be a single sub. I am liking the second amp you posted. Since the sub says its 4 ohms, would i still want a 2 ohm amp or however that works?
That sub has dual voice coils. It has two 4ohm voice coils. Wire them in parallel like the diagram posted and you have a 2ohm load.
Old 03-01-2012, 10:16 PM
  #8  
Seasoned Member
Thread Starter
 
TGL2000's Avatar
 
Join Date: Sep 2010
Location: Media, Pennsylvania
Posts: 457
Likes: 0
Received 0 Likes on 0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default

hahaha yeah i believe that, but ive never had to run that much. The most i ever had was 1200 watt sony amp on 8gauge wire and that was fine. Plus the power wire had a fuse in it
Old 03-01-2012, 10:16 PM
  #9  
CF Veteran
 
mr white's Avatar
 
Join Date: Aug 2011
Posts: 3,648
Likes: 0
Received 4 Likes on 4 Posts
Model: Cherokee
Default

Originally Posted by xj_maniac_newb
I agree completely with "overpowering" over "underpowering". Same thing with amp wiring, I use a minimum of 3awg on all my systems to be certain my amp is not limited on the power it can draw. My rule of thumb is take the minimum wire size required and go up by at least one. NEVER go under on wire size, my buddy thought he was smart and used 8 awg on a 2000W amp, Then wondered "why does it sound funny?" when it fried a 2 foot section of the wire.
That is a quick way to burn your car to the ground. LOL
Old 03-01-2012, 10:17 PM
  #10  
Seasoned Member
Thread Starter
 
TGL2000's Avatar
 
Join Date: Sep 2010
Location: Media, Pennsylvania
Posts: 457
Likes: 0
Received 0 Likes on 0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default

Originally Posted by mr white
That sub has dual voice coils. It has two 4ohm voice coils. Wire them in parallel like the diagram posted and you have a 2ohm load.
Ok ok, now its starting to make sense.
Old 03-01-2012, 10:17 PM
  #11  
CF Veteran
 
mr white's Avatar
 
Join Date: Aug 2011
Posts: 3,648
Likes: 0
Received 4 Likes on 4 Posts
Model: Cherokee
Default

Originally Posted by TGL2000
hahaha yeah i believe that, but ive never had to run that much. The most i ever had was 1200 watt sony amp on 8gauge wire and that was fine. Plus the power wire had a fuse in it
That wasn't a 1200wrms amp. Maybe 3-400wrms. Most companies rate their amps by MAX power which is complete horse****, but it does sell amps to n00bcakes.
Old 03-01-2012, 10:23 PM
  #12  
Seasoned Member
Thread Starter
 
TGL2000's Avatar
 
Join Date: Sep 2010
Location: Media, Pennsylvania
Posts: 457
Likes: 0
Received 0 Likes on 0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default

i believe it was 800rms, the subs i was running at the time were 500rms each though. alittle underpowered but still loud enough to rattle you up
Old 03-01-2012, 10:35 PM
  #13  
CF Veteran
 
xj_maniac_newb's Avatar
 
Join Date: Sep 2009
Location: Summerville, Ga
Posts: 6,322
Likes: 0
Received 5 Likes on 5 Posts
Year: 1995
Model: Cherokee
Engine: 2.5 4 cyl.
Default

Originally Posted by mr white
That is a quick way to burn your car to the ground. LOL
Lol yeah, melted the carpet under his back seat. He's listened to my "bull****" ever since then lmao
Originally Posted by mr white
That wasn't a 1200wrms amp. Maybe 3-400wrms. Most companies rate their amps by MAX power which is complete horse****, but it does sell amps to n00bcakes.
THIS^^ Cant tell you how many people were astounded by my 150watt JBL amp that powered my old 12's. They never could figure out how it could keep up with their "800watt" amp that they were using. My JBL was labeled with the RMS (strangely enough) while theres was labeled with the PEAK.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
93_xjcherokee
Modified XJ Cherokee Tech
25
02-27-2023 05:43 AM
Kydude7
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
7
09-20-2015 06:35 AM
mach3lude
Modified XJ Cherokee Tech
17
09-10-2015 02:34 PM
SouthSeaPirate
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
0
09-07-2015 11:29 PM
Kris smith
Modified XJ Cherokee Tech
11
09-06-2015 04:53 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Quick Reply: Sub, Amp combo question



All times are GMT -5. The time now is 07:29 PM.