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cva-1003 volume?


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mustang90 
Member - Posts: 10
Member spacespace
Joined: August 04, 2003
Location: United States
Posted: August 04, 2003 at 11:54 AM / IP Logged  
I just installed my brand new CVA-1003.  Everything works, but when I turn my system up to 20 or more the tweets and midranges cut-out. My subs will still play.  Then I have to turn the head unit off then on again for it to play. Its like somesort of protection kicks in?????  What is happening????  Thanks
DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: August 04, 2003 at 1:21 PM / IP Logged  

Are you running your mids/tweets off the built-in amps?  Realize the amps in the Alpine are rated at 4 ohms and are not 2-ohm stable.  It sounds to me like yes, the system is going into protection, so do you perhaps have a 2-ohm load on the amps?

The specs on the Alpine are only 19 watts RMS (45 watts peak) into four channels at f ohms with a 14.4V power supply.  This is not going to "play loud" if that's what you are after, and you may need an aftermarket amp.

mustang90 
Member - Posts: 10
Member spacespace
Joined: August 04, 2003
Location: United States
Posted: August 04, 2003 at 1:49 PM / IP Logged  
I just have my mids/tweets running straight to the head unit.  I removed all the ford stock amps!  The only speakers my CVA is running is my dash and door speakers.  So should I buy  an aftermarket amp to run those, to keep my head unit from going into protection???
DYohn 
Moderator - Posts: 10,741
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Joined: April 22, 2003
Location: Arizona, United States
Posted: August 06, 2003 at 7:23 AM / IP Logged  

Like I said, it depends on how they are wired.  If they are putting a 2-ohm load on the CVA-1003, then that is the problem.

Do you have your "mids/tweets" wired in parallel to, say, the front channel outputs from the Alpine?  Are you using a passive crossover?  Did the crossover come with the speakers?  What kind of speakers are they?

fuseblower 
Silver - Posts: 403
Silver spacespace
Joined: June 25, 2003
Location: United States
Posted: August 06, 2003 at 10:52 AM / IP Logged  

Try measuring the ohms of the speakers at the radio to see if they are running a load smaller than 4ohms.  If the speakers are running in four ohms you might want to disconnect all of your speakers and hook them up and test them separately.  If the system cuts out when hooked up to a certain set of speakers you have narrowed down your problem.  Once you locate what set of speakers are making the system cut off you might want to remove the speakers and test them.  From here you can find out if you need new speakers or if there is a wiring issue.


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