BIC V1020 not playing through Onkyo TX-SR373

Howdy all,

I've been trying to get my BIC V1020 to play through my SR373 and have had little success. I get only a trickle of bass when I put my hand on the bottom, and only with the sub volume at 10. The sub rumbles well through the "test tones" and "AccuEQ" auto calibration. For reference, I have the receiver hooked up to my PC via HDMI cable.

Here's what I've done to far:

• confirm front speakers are set to "small"
• confirm "EQ" and "late night" are set to "off"
• tried both receiver sub outputs
• set crossover to all levels (200, 150, 80, 50)
• sub is set to "on"
• sub crossover set to ~80
• sub phase set to "0"
• receiver set to "digital 5.1, 7.1, 9.1"
• "HDMI" on receiver set to "amp"
• "EQ" set to "off"

When the sub is set to "auto" the power light is red. I knew this wouldn't be a cake walk to set up, but lately I've been getting discouraged.

Any suggestions are greatly appreciated!

Cheers!