7405109a trying to find out what yr and how much is it worth

It is worth repairing, you can either do it yourself if you can solder or take it into a guitar shop.

This bass was made by Cort in Korea, in Jan 2004. They sell used for US$150-250 depending on condition.

We'd need the make,model, and serial number in order o help you.

The number will be on the rear of the headstock or on a paper label visable though the sound hole. From the number you can determine the year.

usually stamped on back of head stock

try taking out the battery, and putting it back in just like booting yr computor.

If it's really just the socket that's quit then it may be an easyish fix depending on which one. If it's worth fixing really depends on which XLR out had died and in what way. These were from the 'bad' behringer phase and are normally not worth fixing.

If it's a Buescher True Tone, it was made in either 1924 or 1925.

LOOKING FOR THE YR OF A YAMAHA BASS GUITAR SERIAL # YAMAHA BASS BB 414.

Probably worth getting a new one. Try the keyboards from yamaha, they have good organ sounds.