If the volume or body doesn't get bigger, I'd say that's the prob area.

I bet the prob is in the double 8 ohm wires shorting out somewhere, so try to hook up any other 8 ohm cab to check how the volume is as when you connect the speaker cable it effectively shorts one of the 8 ohm wires, leaving the internal speaker at 8 instead of 4 to enable the extra cab. Hey solo, from my research you should be getting the full 300 w into the 1x10 speaker but that's a lot of oomph for a 10 so it'll probably fart out sooner than later but it should be able to handle your aco gigs with ease. I really really like the headphone out sound too, it sounds fantastic with good headphones It's plenty for most stuff, anything louder there'll be a PA anyway! I have a very similar set up, Promethean 5110 and and EAD Foundation 112. A bit overkill for home practice but I'll drag it out to play sometimes. I have stacked mine with a 112 and it's easily loud enough for anything I think I'll ever be doing. The P3110 was the best small combo I'd personally ever heard, you just get more with the 5110. More tweeter (very slight) hiss on the 5110 tho it's not bad and hopefully wouldn't be heard for recording, you can also if you listen very carefully hear the cooling fan going on and off with the mute engaged.Īs I said I think you get the same kind of punchy tone from each but way more headroom with the 5110. Imo they both have the same great tone but the 5110 is VERY much louder.the other thing I noticed is the the 5110 has a better sounding aux/headphone input, played through the speaker it's very noticeable as well. I just changed my P3110 for a 5110 I found going used locally.

Ibanez promethean p3110 manual