Subaru Enthusiasts Car Club of the Sierras  

Go Back   Subaru Enthusiasts Car Club of the Sierras > Car Enthusiast Forums > Technical Chat

Technical Chat Ask and answer technical car questions.

Reply
 
Thread Tools
Old 2007-05-20, 12:47 PM   #51
A1337STI
EJ205
 
A1337STI's Avatar
 
Join Date: Jan 2006
Location: Reno, NV
Posts: 1,840
 
Car: Impreza and an Impreza
Class: AS / CRS PerfStock
 
"pedal on the right"
Default

Wow for 240$ ? niice. Yes that would definatly be enough. it might be a bit too much actually. Run the voice coils in parallel and then 2 speakers in parallel with each other for 1ohm. but then you are running them at 600 rms a piece when they are rated for 450 rms.

Perhaps getting this Amp
http://www.hifisoundconnection.com/S...44239234235236
and running it at 4ohm (run the voice coils in series with each other, and then the two speakers in parallel to net 4 ohms) The amp will run cooler that way and last longer It should also have less distortion.

You will need a capacitor I'de go with what the industry calls a 1 faraday Cap, although in reality its 1 micro faraday but don't bring that up in a stereo shop or they will look at you a bit confused.
__________________
Fighting uphill battles, one bullet at a time!



Last edited by A1337STI; 2007-05-20 at 12:49 PM.
A1337STI is offline   Reply With Quote
Old 2007-05-20, 02:18 PM   #52
wrxkidid
EJ205
 
wrxkidid's Avatar
 
Join Date: Jan 2007
Location: Incline Village, NV
Posts: 1,232
 
Car: 1999 Jeep Grand Cherokee Ltd. 5.7l
Class: None :/
 
Cory, just put a 4g63 in it.
Default

what gauge amp kit would i need?
also if i add another amp along with speakers later would i need an entire new amp kit or no?

if we built 2 12x12x8.5 inch boxes that would give each box a .44 cu airspace (10.5x10.5x7) internal dimensions we would have to raise the floor about 6 inches though if we wanted them rear firing but if not we could put them firing upwards and not even have to raise it at all.

both would be at the very back of the trunk in the spare tire area.

that would give us a little bit to mess around with tuning wise.

also i forgot what you said about subs firing directly at eachother would they cancel or no?
__________________
Mosey down the road.

Last edited by wrxkidid; 2007-05-20 at 07:59 PM.
wrxkidid is offline   Reply With Quote
Old 2007-05-21, 06:37 AM   #53
wrxkidid
EJ205
 
wrxkidid's Avatar
 
Join Date: Jan 2007
Location: Incline Village, NV
Posts: 1,232
 
Car: 1999 Jeep Grand Cherokee Ltd. 5.7l
Class: None :/
 
Cory, just put a 4g63 in it.
Default

i designed a box that i can ~.42 cu ft. it might weigh kinda a lot though because obn the bottom there has to be a 10.5x10.5x3 block to get it down from like .62.
it would be removable though for autoX and have the amps mounted in the middle between the subs and would have room for a 2nd amp underneath that would be open but i would probably put a fan to circulate some air.
__________________
Mosey down the road.

Last edited by wrxkidid; 2007-05-21 at 03:50 PM.
wrxkidid is offline   Reply With Quote
Old 2007-05-23, 08:37 AM   #54
A1337STI
EJ205
 
A1337STI's Avatar
 
Join Date: Jan 2006
Location: Reno, NV
Posts: 1,840
 
Car: Impreza and an Impreza
Class: AS / CRS PerfStock
 
"pedal on the right"
Default

Well if its removable the weight won't matter so much. can't you just box off what you want for free space and leave the void, well, void ?
__________________
Fighting uphill battles, one bullet at a time!


A1337STI is offline   Reply With Quote
Old 2007-05-23, 08:10 PM   #55
wrxkidid
EJ205
 
wrxkidid's Avatar
 
Join Date: Jan 2007
Location: Incline Village, NV
Posts: 1,232
 
Car: 1999 Jeep Grand Cherokee Ltd. 5.7l
Class: None :/
 
Cory, just put a 4g63 in it.
Default

yea but it would look all akward. next autox ill show you what i mean.
__________________
Mosey down the road.
wrxkidid is offline   Reply With Quote
Old 2007-05-28, 09:38 AM   #56
A1337STI
EJ205
 
A1337STI's Avatar
 
Join Date: Jan 2006
Location: Reno, NV
Posts: 1,840
 
Car: Impreza and an Impreza
Class: AS / CRS PerfStock
 
"pedal on the right"
Default

I think i personally ran a 2 gauge power line, and a 2 gauge ground line. It can be a pain in the ass to get a shop to install the ground line. they will give you this "we never do that shit" , just give them the "I'm a paying customer, if you want to do this for free we can do it your way" Power + ground wires on 1 side of your car, run the Shielded RCA lines (preferably ones with gold plated contacts) on the Other side of your car , this makes it so you get 0 engine noise.

If you don't use a ground wire , your cars frame gets juiced all the time. you will get shocked more often getting out of your car. you are more likely to pick up engine noise on the RCA lines (since no matter which side of the car you run them on there will be returning power to the battery going through the frame next to them) And lastly constantly sending electricity through metal is an Oxidation method. (forms rust)

There is no good reason to use the frame of the car for a ground Especially once you are playing with a system that is over 1K watts.

Think i was running 12 gauge wires to my sub IIRC
__________________
Fighting uphill battles, one bullet at a time!


A1337STI is offline   Reply With Quote
Reply

Thread Tools

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ongoing project thread: DoinkWRX sperry General Subaru Discussion & Club Chat 34 2016-09-13 10:53 PM
OEM skid plate for MY 04+ WRX $20 cody User Classifieds 18 2007-01-22 07:05 PM
R&T - Best All-Around Sports Car Comparo - MUST READ ArthurS Off Topic Chat 9 2005-04-06 08:31 PM
GT4 Car List ArthurS Off Topic Chat 4 2004-01-03 07:47 PM
Wheel alignment tech (very long & lots of pics). AtomicLabMonkey Technical Chat 7 2003-11-25 08:51 AM


All times are GMT -8. The time now is 09:14 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
All Content Copyright Subaru Enthusiasts Car Club of the Sierras unless otherwise noted.