Tbh they need so little that a 6watt amp couldnt go past 10 oclock martin... That little valve job of yours is all they need to go very loud.
Well, today ive knocked up a couple of frames for covers, seeing as the weather was good and i could safely drag all the gear out of shed.
Should suffice although id have preferred them longer. They are 60x32cm, but could have been doing with another couple of inches in length.. Alas the bit of wood i had wasnt big enough. Still they will do for now anyways. Still nervous when anyone comes in house