 Entwistle was one of the first to make use of Marshall stacks in an attempt to hear himself over the noise of his band members, who famously leapt and moved about on the stage, with Townshend and Keith Moon smashing their instruments on numerous occasions (Moon even used explosives in his drum kit during one television performance on the "Smothers Brothers Comedy Hour").Townshend later remarked that Entwistle started using Marshall amplification to hear himself over Moon's rapid-fire drumming style, and Townshend himself also had to use them just to be heard over Entwistle.They both continued expanding and experimenting with their rigs, until they were both using twin stacks with new experimental prototype 200 watt amps, at a time when most bands used 50–100 watt amplifiers with single cabinets.