I tried doing a search on this, but if you know of a past thread that covered a similar issue, let me know... I use an Aguilar GS 112 and an Eden Nemesis 320 watt head. I've used this amp setup for about eight years and it has generally worked really well for me if I only use it for an hour or so at a time, and is only loud enough if I crank the volume and set the gain at half capacity--but it is excellent-sounding under those constraints. I played a 4.5-hour background jazz gig at a downtown restaurant/bar last night. I'd played this gig before, and usually my setup does alright, though my sound tends to lack definition and clarity. Well, last night I decided to crank the treble and and mids AND put the gain at 2/3 to 3/4 capacity (with volume cranked). Being fed the signal from mixing my magnetic and piezo pickups, I had a blast with the sound I was getting. However, the amp completely pooped out about 40 minutes from the end of the gig. In the past, I've had to crank the amp more and more throughout the gig to maintain the same volume, but I always attributed it to fatigue / failing to pull the strings as strongly as at the beginning of each gig. A final note: Sometime during my first year of owning the amp, it fell off of a tall cabinet from being shaken by sound vibration during a loud rock gig. I got it repaired soon after, and it seemed to work just fine, but I don't know if this is what has been causing it's issues of pooping out and needing to be continually cranked higher. My question is, do I need a new amp? A new speaker? Both? If I *do* need a new amp, does it need to be a stronger wattage than my current one, or do I just need one that hasn't been beaten up (or both)? Is my speaker--which uses a 12" cone--paired with me cranking my mids and highs--which are better produced using smaller diameter cones--causing my amp to overwork? Thanks!