I bought a pair of P10Rs for a 4x10 cabinet in which I put them together with a pair of Eminence blue frame alnico’s in X pattern. The cabinet is made of pine in the dimensions of a bassman 59 combo, openback. On it I play a boutique head 5f6a, but with some modifications, such as master, gain channel, kt88 tubes, fx loop ... I can't be more satisfied, that's what I was looking for for this amplifier.