Yes, you can connect the SVS SB-1000 sub to your Wadia Intuition integrated amp via the high level speaker connectors.
The only issue I noticed is that your Wadia uses banana plugs to connect to its speaker outputs. That is, a red pos. and black neg, banana plugs connect to the amp's speaker outputs and pos. and neg. bare wires, on the other end, connect to each of your left and right speaker inputs.
I believe the simplest method, to hook up the SVS sub, is to use two 18 gauge or thicker speaker wires with bare + and - connections on each end. Connect one wire's + and - terminating wire to the left speaker's + and - terminal inputs and connect the opposite end of one wire's + and - terminating wires to the SVS sub's 'high level speaker input' left channel input. Connect the other wire's + and - terminating wire to the right speaker's + and - terminal inputs and connect the opposite end of other wire's + and - terminating wires to the SVS sub's 'high level speaker input' right channel input.
NOTE: This connection method will require you to double up the bare wire+ and - connections on the back of both your left and right speakers. Don't worry, the connections between each speaker and the SVS sub are only fractions of an ohm in impedance and will not negatively effect your speakers or Wadia integrated amp/power dac.