I really like Wades idea of taking the back off and then cutting a tight fitting piece that leaves the top or middle open to breath some sound out from the back yet keep some air inside around the bottom to maintain some kick & push. Sometimes I have also found a cab can fall to $#it when there is no back at all. Think of a bass drum with no front head compared to a ported front head. It all about what we do with the air movement we have to work with. Fender is fond of the partial open back on most of there combo amps and for many years has had great success leaving the bottom part enclosed with an open middle. This design really fills a room and has the effect of dispersing the sound all around the amp and not just out in front of it. Cant beat it for close quarters gigging or band practice where the only place to stand is a foot or two right in front of your amp. I personally have been battling that issue for the last couple of years being I had come to prefer the tightness of the old tube Marshalls heads and tiring of some of the aspects of typical Fender sound reproduction. That meant having to deal with finding the right cab so I can both hear myself where I'm standing and get that thumpy slap to the pant leg tight low end when playing. Mostly all the great sounding cabs that did that were completely enclosed. That meant their sound was directed way out in front of me and not necessarily where I had to stand! Which also meant I had the hardest time hearing my true tone and had to deal with a false representation of my tone where I was basically forced to stand. That was entirely due to the directness & projection of the various cabinets I tried, IE; Marshall 2x12 & 4x12 angled & straight, Fender 4x12 stereo angled and a Dr Z 2x12 large enclosure & other quick forgettables that didn't last a song or two before unplugging them. Quite annoying as well as that whole scenario promotes the desire to keep turning up up up (yeah that's it), until it sounds good right where I'm standing or until somebody starts making faces or asking to "turn down". Things were really loud (but still a lot of fun) for quite a while. I had to find an answer and ended up going to partially open back designs once again, simply because of the often restricted space I always seemed to be forced to play in. It just works so well. How did I solve my dilemma and preference for that vintage Marshall tube amp sound & amp characteristics? My two most used favorite amps now ended up being the unique, surprisingly loud, versatile and tasty little Fender SuperSonic 22 which has me totally impressed and does an amazing job for 2 6V6 power tubes and a sweet playing 76 Marshall master vol 2x12 combo amp which still beats that SuperSonic in the tight low end department. Both have an open back design that really gets things done from both where I'm standing and anywhere else in the room. Ah the years of torment I could have saved if I had found either of them sooner than I did. I never had these problems before as I had used Fender combos prior to tiring of their sonic limitations. Before that it was a 1x12 100 watt Music Man RD with again, a partial open back. Hmmm.. what made me think I could get a closed cabinet to work in the first place in such tight quarters? Was I looking to relive my younger Marshall stack glory days? Fact is using a stack definitely puts the sound where you can hear it quite well even when standing in tight quarters but that is just silliness at this point in life and a sure way to ruin what hearing I do have. Nuff said, back to the open backs for me. Forgive me for reflecting on my own personal experiences with cabinet issues and if they seem not to directly correlate to the small amp problem scenario we have here. My hope is that it just elaborates on the potential a speaker cabinet can offer as the dramatic differences can easily not even be thought of as a solution to an amp 'problem'. Maybe somebody can relate to that and possibly find their own answer reading about it here and not have to actually go through it all themselves. I'm sure there are closed back cabinets that do a decent job throwing sound around themselves but as a general rule if we want to hear ourselves standing up close to and on top of our amps and we are looking for some liveliness to our sonic output, we are needing to be looking at an open back cab design that gets the job done. Now Keep feeding your little amp rock n roll appetites and they are only sure to grow.