Another way of lowering volume (but might change tone for the good or bad) is to get a 212 16ohm cab with LOW SPL speakers, somthing way lower than 97db@1w/1m, in other words making the amp/speaker combination the least efficient possible.... this requires ALOT of experimentation with different speakers and probably speakers you would think are the least likely to generate a good sound, but surprisingly they do... here's an example:
get 2 10inch Goldwood (this is an OEM manufacturer for hundreds of speaker companies), this is a woofer originally intended for hifi, but it's specs are perfect for a guitar amp and its low SPL PLUS wiring 2 8ohm speakers for 16ohm resistance will allow you to crank your amp: I have tried many of these strange combinations for clients looking for the same type of result and can tell you that this particular speaker sounds exactly like the Celestion Vintage30, except that it has a much bigger bottom end... Unfortunately in the past i never recorded any of these surprising combinations, but I will definitely be building one of these for experimentation purposes in the next month or so, and will post an audio clip when I do...
Specifications: * Power handling: 140 watts RMS/270 watts max * Voice coil diameter: 1-1/2" * Le: 1.85 mH * Frequency response: 36-5,000 Hz * Re: 7.22 ohms * Magnet weight: 40 oz. * Fs: 45 Hz * SPL: 90.4 dB 2.83W/1m * Vas: 1.12 cu. ft. * Qms: 4.50 * Qes: .52 * Qts: .47 * Xmax: 3.55mm * Net weight: 7-1/3 lbs. * Dimensions: Overall Diameter: 10", Cutout Diameter: 9-1/8", Mounting Depth: 4-3/8", Magnet Diameter: 4", Magnet Height: 1-1/4".