I am thinking of ordering a one channel EF86 + 2xEL84 based Matchless style amp and I have the opportunity to affect on the size of the combo cabinet. At first I thought that surely it would be equipped with a 12" speaker, but lately realized that there seems to be a lot of 10" speakers which have very high decibel ratings and many reviews tells that they sound like a 12". In any case, I would make the cabinet large enough to accomodate 12" size speaker (as small 12" cabinet as possible), but maybe I will take it with a good 10". I have a 5W Princeton clone with 12" size cabinet, but equipped with 10" speaker. The amp sounds great, I am not missing anything on the bass department. The bigger cabinet beefed up the sound nicely. I just ordered a 10" Red Fang which has 102db and according to user reviews, the sound should be huge. I can't wait to hear how does that sound with this amp. This led me to realize that I found only a handful of 15W amps with a single 10" speaker (None from Matchless, Bad Cat, Top hat, Swart, etc. modern "boutique" brands). 15W combos are almost always 1x12", 2x10" or bigger. There are many 5W amps with 1x10" though. Am I missing something crucial by not using a 12" speaker? Why is 1x10" not more popular? Does Santa Claus live in Northpole?