Hi all, So, interesting story. At a gig last night in the dark I mistakenly fumbling around plugged the cab into the effects loop without realising. Its located directly below the speaker outs and in the dark in a tight space I stupidly managed to plug it in there instead of the output jack. Turned the amp on and noticed that there was no sound coming out. Checked my tuner and the mute switch and volume pots on my bass (no longer than 25 secs in total). I feared the worst that the speaker cable wasn't fully in and decided to turn it off and check. Lo and behold stupid me had plugged it into the effects loop (in the dark I can't remember if it was the send or return). I then plugged it all back in correctly, turned the amp on and its sounding fine.. I tend to think I'm overthinking anything now and looking out for anything that to me sounds a bit off but in all realism it seemed to be working absolutely fine. Whats the likelihood of some damage being done, and if so is it usually repairable? My theory is that if I was plugged into the effects loop 'send', no signal should have been going into the power amp, possibly avoiding damage? I.e. I would have only been using the Pre Amp section so it'd just be like having a really weak amp? I am completely untrained with circuitry though so this is only a guess. If it was the effects loop 'return' I'm unsure what would have been happening. I've attached a picture of the back of the amp (not mine, just a google image) for reference. Thanks all!