Powerpack 408 speaker connection
As the Powerpod 408 only has one power amplifier, there is no difference between connecting the speakers individually or both to one output. In essence, connecting two speakers individually is the same as connecting two speakers in parallel.
However it should be noted that users should not connect one speaker to one output and two speakers in parallel to the other output. This would likely cause damage the built-in amplifier. And please remember: when using a total of two speakers, use 8-16 ohm speakers. When using a single speaker, use a 4-8 ohm speaker.