Townsend terrified the Wanderers defence in the first half, and with Tom Huddlestone controlling the midfield we created chance after chance.
Mason put the lads ahead in the 14th minute with a low volley after Wycombe failed to clear a cross into the box and Obika doubled the lead soon after with a close range finish following a superb run and ball into the box from Townsend on the left wing.
Midway through the first half, Mason made it 3-0 from the penalty spot after Obika was brought down when through on goal after an inch perfect through ball from the impressive Townsend.
The scoreline reflected a dominant first half performance in which Wycombe were given very little time on the ball.
Wanderers did improve in the second half and forced Miles into a couple of diving saves, but we extended our lead in the 69th minute after a teasing Nathan Byrne cross was headed home by substitute Giancarlo Gallifuoco.
Jack Munns got his reward for a working tirelessly thoughtout the match when he turned and shot across the goalkeeper late on to make it 5-0, before Obika scored his second with a low finish after being played through by Huddlestone to seal an impressive victory.
Spurs XI: Miles; Naughton; Byrne; Ekong; Dawson; Dombaxe; Mason; Huddlestone; Obika; Munns; Townsend.
Goals: Mason (14 & 26), Obika (24 & 90), Gallifuoco (69), Munns (81)