the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

Bench test setup


Post ReplyPost New Topic
< Prev Topic Next Topic >
Autos4U 
Member - Posts: 20
Member spacespace
Joined: May 19, 2003
Location: United States
Posted: January 16, 2004 at 4:23 PM / IP Logged  

I am sorry if this has been discussed. I searched various ways to describe my question with no results.

Here goes. I have built a test bench to test sub enclousures, amp performance, speakers, etc...

I am currently powering a head unit and 2 amps (one 4 channel and one MONO block) at about 800W RMS total. I am running these from a deep cycle marine battery, connected to a 6a battery charger.  I am never seeing over 12.8V under load,  I want to add a wall power supply   (13.8v) to replace the batery charger.

Do I need to purchase a 30a + if I plan to keep the battery connected, just to keep it charged? I can't remember if the battery will carry the current draw and a power supply will recharge the battery from wall voltage like an alternator. If this was the case, could I use  something like a 13.8vdc, 15a (continuous) and get away with it? It would be much cheaper.

If anyone has tried this, let me know the results.

Thanks!

Tucker

Autos For You, Inc.

dcgc 
Copper - Posts: 78
Copper spacespace
Joined: August 04, 2003
Location: United States
Posted: January 16, 2004 at 7:57 PM / IP Logged  
Myself I wouldn't use the wall socket, the charger would be all I would want. If you decide to do this that way I suggest you get yourself a fire extinquiser, quick absorbant compound (for battery acid), a cordless phone charged and ready, and last but not least, Your local fire department number.
Seriously, why can't you just have the 13.8 volt AC adapter wired thru a 50A fuse to your amp? no need for battery.
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
Basscoholic23 
Copper - Posts: 67
Copper spacespace
Joined: June 11, 2003
Posted: January 16, 2004 at 8:28 PM / IP Logged  
I have to agree with dcgc with this one. Thats what i'm using for my bench test...... http://www.etronics.com/product.asp?stk_code=pyrps52kx&store=&catid=4071
Autos4U 
Member - Posts: 20
Member spacespace
Joined: May 19, 2003
Location: United States
Posted: January 20, 2004 at 7:38 AM / IP Logged  

Thanks for the input.

Thats what I was trying to find out. If  I had to go with a 50a power suppy or if I could get away with a smaller one if I used a battery along with it.

I don't see if the bench was only hooked up as I was using it, how it would be any different than an alternator recharging the battery when the car is on as far as fire hazards.

But oh well,  a power supply looks like the easier way to go anyway.

Thanks,

Tucker

oldencnile 
Member - Posts: 2
Member spacespace
Joined: February 04, 2004
Location: United States
Posted: February 04, 2004 at 2:28 AM / IP Logged  

Would that 40/50 (peak) unit power an 1100Watt RMS 1500 Watt Peak Directed audio Amplifier? I'm running a diamond audio TDX 15" sub, and would like to have constant power to it, I figured I'd need at least 100 amps (seeing how my 91 Probe with it's 60 amp peak alternator can't handle it) Whatdya all thinK Thanks!

-Jordan

geepherder 
Platinum - Posts: 3,635
Platinum spaceThis member consistently provides reliable informationspace
Joined: October 27, 2003
Posted: February 04, 2004 at 10:00 AM / IP Logged  
No, do the math and it'll come up short.  It'd play fine at moderate volumes, but when you decide to crank it, the power supply will fall short.
My ex once told me I have a perfect face for radio.
customsuburb 
Gold - Posts: 1,813
Gold spacespace
Joined: January 17, 2004
Location: United States
Posted: February 04, 2004 at 3:49 PM / IP Logged  
My local car audio dealer Car-FI seams to have two power supplys that are rack mounted in their demo room that look like seperate amps in a home theater system. I know these are definitely power supplies though because they already have two Rockford amps to power their subs. You might want to call them and see what their setup is. Heres the link to their site: http://www.car-fi.com/mobile_video/mobile_video.html
customsuburb 
Gold - Posts: 1,813
Gold spacespace
Joined: January 17, 2004
Location: United States
Posted: February 04, 2004 at 3:54 PM / IP Logged  
ohh yeah ,you probobly need area code: 417-882-5511

Sorry, you can NOT post a reply.
This topic is closed.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Wednesday, November 30, 2022 • Copyright © 1999-2022 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer