1 3 ohm sub and 1 1 ohm sub to a 2 channel amp

[zachary.freitas03]

How do I hook them together

 

[jay32267]

What is the model of the amp?

 

[americanaudiophile]

Depends on what the minimum impedance the amp will handle in stereo and bridged to mono (if it can be bridged).
You can figure it out yourself.
http://physics.bu.edu/py106/notes/Circuits.html