George, welcome. If the maximum output capability of an amplifier can meet the safe(to your hearing)sound levels of the speakers being used, there's no good reason to expect any audible difference with one having an even greater maximum output available(e.g.,the few watts difference between the 2807 and 3312 are likely meaningless). Unused headroom is simply that: unused.
Particularly with the amplifier in the EP350 carrying the load of the lowest bass frequencies, your 3312 should have more than enough capacity to do the job.
