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Blown Amp


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Capt_ron 
Member - Posts: 2
Member spacespace
Joined: August 12, 2004
Location: United States
Posted: August 12, 2004 at 9:21 AM / IP Logged  

Crossfire CFA602 (300 x 2  or 1 channel bridged) was hooked up to TWO woofers of 4 ohms using the single bridged channel which of course reduced the load to 2 ohms and after about 10 minutes of some pretty decent sound.........  The amp went dead....... 

 Is there anything I can do here (myself before taking it to a repair shop) to troubleshoot , diagnose and fix this amp?

Also an additional question:  Dont know too much about the namebrand "Crossfire" (Ive been out of the stereo world for quite sometime now).  Is "Crossfire" a decent amp?  This and along with 3 other amps and woofers were given to me by a friend who had recently passed away ( Crossfire CFA602 amp,  Alpine V 360 watt amp,  Sony X-plode 250 watt amp,  Olympus 200 watt amp,  Four Phoenix Gold V Series 10" Woofers, Two Kicker Comp 10" Woofers,  and a Legacy electronic crossover.)..  Any information about these items is very much appreciated.

Thank You,
Ron
Plastic Injection Design Engineer
Addictor Raceboat Owner / Driver
stevdart 
Platinum - Posts: 5,816
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member consistently provides reliable informationspace
Joined: January 24, 2004
Location: Pennsylvania, United States
Posted: August 12, 2004 at 10:10 AM / IP Logged  

I am sorry to hear of your friend's passing.  Looks like you have ruined one of the new toys you have.  If you connected the two SVC 4 ohm woofers together in parallel, then that is what created a 2 ohm load.  Connecting a 2 ohm load onto an amp whose lowest rating bridged is 4 ohms is what cooked the amp.  Crossfire amps are certainly worth looking into fixing.  Contact Crossfire for your nearest repair shop.  As for all your other new toys, start doing Google searches for tons of information.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
fuseblower 
Silver - Posts: 403
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Joined: June 25, 2003
Location: United States
Posted: August 12, 2004 at 10:32 AM / IP Logged  

Crossfire amp are pretty good amps and it might be worth looking at getting it repaired.

The olympus is probably a hifonics amplifier, the Alpine is a pretty good amp probably not a sub amp but will play the heck out of some mid-tweets.

forbidden 
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Joined: November 01, 2003
Location: Alberta, Canada
Posted: August 12, 2004 at 1:33 PM / IP Logged  

Sorry to hear about the loss of your friend, that really sucks blue whale.

This amp is a monster powerhouse. It is a great amplifier and is well worth getting it fixed. Your best bet though is to contact Crossfire and find an authorized service shop or even better (and I hope this is what they will recommend) is to send the amp direct to them. As a former dealer this is what we were required to do.

www.crossfirecaraudio.com

Top Secret, I can tell you but then my wife will kill me.
pimpincavy 
Silver - Posts: 880
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Joined: May 20, 2004
Location: United States
Posted: August 12, 2004 at 8:19 PM / IP Logged  
Definatly look into getting the amp repaired. The alpine amp will be good for speakers. Xplod amps arent worth much, try to sell it or something. The olympus amp im not sure of. The PG and kicker subs are great subs. I dont know how good legacy crossover are, but if they are anything like their other products...they are crap.
furflier 
Copper - Posts: 236
Copper spacespace
Joined: June 14, 2004
Location: United States
Posted: August 12, 2004 at 8:48 PM / IP Logged  
Correct me if I am wrong. I think the Olympus  amp is a product that Radio Shack used to sell. If so I would get rid of it along with the Xplode. I would get the Crossfire amp fixed and keep the Alpine for the mids & highs. As for the Legacy its okay to start with but would look into upgradeing it in the future.
zane9000 
Copper - Posts: 69
Copper spacespace
Joined: August 07, 2004
Location: United States
Posted: August 12, 2004 at 8:58 PM / IP Logged  

The RadioShack product line your thinking of is Optimus, not Olympus, furflier.

I had Cheetos and wine for dinenr.
furflier 
Copper - Posts: 236
Copper spacespace
Joined: June 14, 2004
Location: United States
Posted: August 12, 2004 at 9:13 PM / IP Logged  

Yea thats right. For some reason I had a brain cramp. Thats why I wanted to make sure. Thanks for clearing that up.

Aszkutak450 
Member - Posts: 5
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Joined: August 13, 2004
Location: United States
Posted: August 14, 2004 at 4:48 PM / IP Logged  

sry about ur friend....i say the legacy crossover should b scrubbed....um the kickers will knock down trees easily....the alpine amp and the pheonix gold r great also

good luck

andy

Capt_ron 
Member - Posts: 2
Member spacespace
Joined: August 12, 2004
Location: United States
Posted: August 16, 2004 at 4:28 PM / IP Logged  

  First let me thank ALL of you (stevdart, fuseblower, forbidden, pimpincavy, furflier, zane9000, and Aszkutak450) for the information and suggestions.  Many years ago I was very much so into the high end audio crave (It feels kinda weird when you pull up to a stop light and are practically able to knock off the rear view mirrors of the car next to you at age 35.).  But in anycase being that since high school Ive always had a system which was considered above average (anywhere from 150 watts all the way up to 1,400 watts pushing 4-15" woofers), Ive forgotten much about the "how to's" and "what not to do's", so to everyone out there...................  I truly appreciate your help......

 And now for the latest information on my delima:

GOOD NEWS:    The Crossfire amp was NOT blown.......  There was a small short located in the power wire (12 volt constant).

 I have decided to go with this set-up .

Head Unit (Dont laugh too hard).......................................  JVC

Amp to power the mids & seperates...............................  Alpine V-Power

Amp to power the two 10" Phoenix Gold woofers ............  Crossfire CFA602

Thank You,
Ron
Plastic Injection Design Engineer
Addictor Raceboat Owner / Driver
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