

Alright, time for the back story real quick. I bought a 2nd hand eden 410XLT cab of ebay for what i think is a steal, $450 Australian plus shipping, which came to a total of $650. Anyway, as soon as it arrived home with it, i plug it into a monitor output on my rehearsal PA (i don't have an amp to test it on atm) and I'm met with distortion at a pretty low level of volume. I initially thought it was a result of me running a PA into it (i was playing bass into the PA). On closer inspection i find it just one speaker thats distorting.
So I've taken the from grill off and gently pushed on all the speaker cones to find the bottom right, the one that was distorting, feels 'rough' to push in. I'm guessing the speaker is done. Am i right to assume that i just need to replace the speaker and I'm good to go, or is there another possible problem that I'm not aware of?
Also, whats the best way to replace a speaker in this amp from Brisbane, Australia? I'm not bad with a soldering iron so could i just order a replacement speaker and change it over myself?
Thanks for any help you can provide