there could be numerous combinations of cabinets and speakers that sound good with your amp. the biggest problem is trying to 'test' different brands and models without having to buy dozens. gets real expensive real quick. I prefer the blue label Fender 12s for blues and vintage rock sound. I don't think you can go wrong with either EV or JBL high end speakers. I don't think they sound as good as some of the ones with smaller magnets though except when pushed really hard by some mega watts. Case in point would be the late, great Jerry
Garcia.
Here is a link to a picture of the blue label Fender speakers. They are plentiful, priced right and can handle a lot of guitar sound.
http://www.ebay.com/itm/Vintage-Fender-Twin-Reverb-The-Twin-Red-Knob-Guitar-Amp-Combo-Amplifier-LL66385-/251538046908?pt=LH_DefaultDomain_0&hash=item3a90d5ffbc
Garcia.
Here is a link to a picture of the blue label Fender speakers. They are plentiful, priced right and can handle a lot of guitar sound.
http://www.ebay.com/itm/Vintage-Fender-Twin-Reverb-The-Twin-Red-Knob-Guitar-Amp-Combo-Amplifier-LL66385-/251538046908?pt=LH_DefaultDomain_0&hash=item3a90d5ffbc