testing subs and amp?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=53709
Printed Date: May 15, 2024 at 3:17 PM
Topic: testing subs and amp?
Posted By: lilbenny
Subject: testing subs and amp?
Date Posted: April 11, 2005 at 2:33 PM
is there a way to test out your subs and amps if you dont have them installed in your car yet? if so how?
thanks
-benjamin
Replies:
Posted By: the Installater
Date Posted: April 11, 2005 at 7:05 PM
if you have a meter you can test the ohms on the subs, and they should read out however many ohms that the speaker is.The amp you will have to hook up tto a power supply.
Posted By: lilbenny
Date Posted: April 11, 2005 at 7:36 PM
i mean test them to actually hear them... is that possible?
Posted By: boardinbum
Date Posted: April 11, 2005 at 7:54 PM
You could hook the sub up to a home stereo reciever and not turn it up very loud at all just to see if it works (assuming it's a 4ohm sub. If it's 2 ohms, I'm not sure. Someone else will have to answer that).
Posted By: haemphyst
Date Posted: April 11, 2005 at 10:15 PM
Why are you wanting to waste the time doing that? Are you wanting to see what it is going to sound like, or waht? Waste of time, because you have to build your box anyway... It will NEVER sound the same in your house... Just install it.  ------------- It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: stevdart
Date Posted: April 11, 2005 at 10:15 PM
You could test at the car with the hood open, connect directly to the battery pos and neg. Use the gauge wire that you would use to install the amp. Use the enclosure that the subs will be in, too. Jump a wire from power over to remote turn on to power up the amp (you wouldn't install like this but for a test you could do that). You could probably even forego the inline fuse on the power wire if you're just using it for test purposes and will disconnect everything at the end of the day. Otherwise, use any charged 12 volt battery out of the car, and keep the testing short and sweet. ------------- Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: placid warrior
Date Posted: April 11, 2005 at 10:21 PM
or how bout a 12 volt adapter that plugs into the wall? easy enough to get and u can use the home theater system for the input and actually be able to see how the amp and sub work together...
Posted By: lilbenny
Date Posted: April 13, 2005 at 12:29 AM
nah i would get them installed but im building my box still and i was just thinking.. say you bought an amp or subs used is there a way to test them out if you dont install them right away... thats my original thought, thanks a lot for the info
Posted By: stevdart
Date Posted: April 13, 2005 at 7:34 AM
This is the way I normally view a situation like that: where you have equipment from an "UN" source - (UNusual, UNsubstantiated, UNauthorized,UNverified...) - Equipment will be installed anyway, and for your total power needs there is the installation of power and ground wiring that has to be done.
- As you're doing now, the enclosure has to be built.
- Damping has to be done, anyway, for any system.
It's simplest to presume that everything works fine and go systematically through your checklist of installation procedure. When you finally get to the finish line and reconnect that neg terminal on the battery so that you can "power up", that's when you will know if something is amiss. Unless you have a test bench in your shop set up to easily do this at any time, the procedure is not worth the time invested, and you run further risk of damaging equipment because of the "rigged" nature of doing the testing. So you just install the stuff, troubleshoot if something doesn't work....and replace the dud piece of equipment. Good luck!
Posted By: geepherder
Date Posted: April 13, 2005 at 8:27 PM
At my shop, we'll test the equipment customers bring in while they're present. That way we won't have any issues with them claiming "it worked before." ------------- My ex once told me I have a perfect face for radio.
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