Help with White Face Firebass..please

[rockiesfan]

Hello,

I have a first year white faced Peavey Firebass 700 watt amp that i bought in 1998, which I absolutely love. However, I have noticed that recently when I plug my Peavey 2x10 TVX cabinet into one of the parallel outputs that signal is instantly shut off with a "click" sound. However the other output works fine with no problems.

I am soon adding an Ampeg 15 inch cabinet to my rig and need to get this problem solved. I suspect that it may have something to do with the DDT speaker protection doing its job, which I always keep activated .

Does anyone have any suggestions as to what is happening and if this is an easy fix or should I take it to a repairman? I can fix simple stuff but don't want to risk anything serious by attempting it myself.

My set-up is a '76 Fender Jazz into the Firebass with a dbx 266XL compressor through the effects loop. Sounds wonderful for the style I play, blues.

Thanks in advance to all who have time to help me out. Much appreciated.

Cheers...

 

[wave rider]

Hmmm... Are you plugging in the cabinet with the power already on?

Worst case, connect the two cabinets together and only use the good output jack.

=wr=

 

[rockiesfan]

I only power up after everything is connected.

Would there be any consequences if I chain the two cabinets together?

I would have to first go to the Ampeg which has parallel jacks then to my Peavey 2x10 cabinet which only has one 1/4 inch jack.

The ampeg is 8ohms with 400 watts RMS and 800 watts continuous and the Peavey 2x10 cabinet is 4 ohms with 175 watts continuous and 350 watts program.

the amp specs are:
Rated Power and Load:
700W RMS into 2 ohms
475W RMS into 4 ohms
275W RMS into 8 ohms

Considering these specs of cabinets and the amp is there any danger of ruining any parts of my rig? I am not very good with impedance and speaker loading.

thanks very much.

 

[christw]

The outputs are parallel off of the same power source right? I would look at the jack itself as the culprit. Maybe a wire(s) got loose and is shorting it out. Something like that. I'd suggest finding a tech, or if you're good with cracking open your amps, give it a look over yourself, carefully.

 

[rockiesfan]

Yes the jacks are parallel from same power source.

thanks!