Channel burning

 

New member
Username: Anthonyw5663

AUS

Post Number: 1
Registered: May-06
Hi have recently purchased a extra sherwood es1280 amp.
worked fine, and then hooked some speakers up and now it doesnt work at all.
Have i burnt out my channels? how exactly does this occur? the amp is 8ohms.

Anyone who could shed some light on this it would be greatly appreciated thanks.
 

Bronze Member
Username: Gamerdude

Ontario Canada

Post Number: 50
Registered: Apr-06
you might have used speakers that are 6 or 4 ohms it might have burt out ur amp


Or u might have gotten a power serge and it messed it up
 

Gold Member
Username: Jan_b_vigne

Dallas, TX

Post Number: 8605
Registered: May-04


There really is no such thing as an "eight Ohm" amplifier. Amplifiers, or more specifically, the output devices within amplifiers, would prefer to run against a specifed impedance range and that range can vary with the type and number of output devices and the capacity of the power supply in the amplifier. Many contemporary receivers won't tolerate loads much below eight Ohms and adding additional speakers could easily cause the protection mechanism(s) to trip. Check your rail fuses inside the amplifiers top cover if at all possible. Unplug the amplifier and don't stick your hands in there if you're not completely certain what you can touch and what you can't. Capacitors store a potentially lethal charge for long periods. Repair techs will normally replace fuses at no charge rather than see you fry yourself.

 

Bronze Member
Username: Gamerdude

Ontario Canada

Post Number: 53
Registered: Apr-06
So no 8ohms :S

isnt it like 8ohms-100watt is like 4ohms 50 watts ???

ANd could i run 8ohms speakers on a 6 ohm amp?
 

Gold Member
Username: Nuck

Post Number: 2783
Registered: Dec-04
Anthony, the amp is also polarity protective, check your speaker wires for polarity?
 

Gold Member
Username: Jan_b_vigne

Dallas, TX

Post Number: 8609
Registered: May-04


Polarity protective? What's that mean?
 

Gold Member
Username: Nuck

Post Number: 2784
Registered: Dec-04
If you phase one output 180 degrees, the whole thing shuts up.
 

Gold Member
Username: Nuck

Post Number: 2785
Registered: Dec-04
Backwards wires means no output.

My Sherwood would not work if one was backwards.
 

Gold Member
Username: Nuck

Post Number: 2786
Registered: Dec-04
Yeah phase was the wrong term, Jan, but the point might be close enough, Ja?
Backwards wires.
 

New member
Username: Anthonyw5663

AUS

Post Number: 2
Registered: May-06
Thanks a lot, especially Nuck. I have probably burned out my channels, i think the speakers may be 6ohms. Is there a way I can fix the amp for a small cost? Thanks again
 

Gold Member
Username: Nuck

Post Number: 2801
Registered: Dec-04
Anthony, how loud were you listening when all went quiet?
Sudden silence is a bit odd.
 

New member
Username: Anthonyw5663

AUS

Post Number: 3
Registered: May-06
I know it was strange. The amp played the music extremely low and then just stopped. Also the speakers blew a surround sound amp/sub after about 10 secs as well. I wasn't sure what was going on (all i know are the basics), so consequently all but 2 of the subs channels are now fried. Also, is there a cheap way to fix the amp?
 

Gold Member
Username: Nuck

Post Number: 2806
Registered: Dec-04
Other than the fuses, as Jan suggested, no.
« Previous Thread Next Thread »



Main Forums

Today's Posts

Forum Help

Follow Us