speaker cable popping out of cab?

[Mezcalito]

i'm running a tonehammer 350 into a 15" traynor cab (400W, 8ohm). the cab i've had for a while, never had a problem with it. the amp is a new addition but i've been using it the past few weeks, also without incident.

last night at practice i found when i tried to use a fuzz pedal or turn the gain up on the th, the speaker cable would pop out of the back of the cab (like, physically jump out of the socket) whenever i played a note. this is with the amp master at about 11-12.

the cable is a digiflex speakon-1/4 inch; replacing it with a speakon-speakon cable would solve the problem, i guess, but i want to be certain i'm not damaging the amp or the cab. this ever happen to anyone?

 

[agedhorse]

Some (non-industry standard) plugs do not follow the standard tip specification and will not latch into the tip contact in the jack. The same can be said for some jacks, either from manufacturing or from damage.

You really should get this resolved because when it comes out, it shorts tip and sleeve which can destroy your amp.

 

[beans-on-toast]

Yes you should get this fixed. If it is the speaker cable, replace it.

When you plug in a cable it should snap into the jack. It shouldn't be loose or overly easy to pull out. Digiflex usually makes good quality cables.

Normally there is a membrane or seal over the inside of the cab's jack plate that seals the cab and prevents air from flowing out of the cab if a plug is not in place. Otherwise it can make noise. If all is well with the jack and plug, maybe the seal has been compromised.

There is something that you can try. Turn the amp off. Disconnect the speaker cable from the amp and cab. Compare the tip of the plug with a good instrument cable. Try plugging the speaker cable into the input of your amp just to see if it clicks in to that jack properly. If it feels different, then maybe the cab's jack has an issue. Years ago, an expensive cable company used plugs with oversized tips. They could stretch out the jack contacts and cause problems when another cable with a smaller sized tip was used.

 

[BassmanPaul]

At the very least you should replace the socket on the cabinet with a good quality one. When I settled on the Speakcon connector I replaced all the phone sockets on all of my cabinets with Speakons. I've never regretted that move.

You'll need to open the sockets mounting holes out to 15/16". You can buy a reamer that will do this fairly cheaply.

 

[DiabolusInMusic]

Traynor uses cheap jacks, swap it out. They don't seal their jacks either so air pushes out of them. I am not as smart as some around here but I don't think you want air leaving your cab unless it is through a port.