Question 1

Does this unit have adjustable treble and bass controls?

Accepted Answer

Yes. Via the remote's Treble and Bass +- buttons (the white bottons with "track forward/backward" and "fast forward/backward" symbols on them; they have "- BASS +" and "- TRE +" printed above them. 
It may be possible to dig into Treble/Bass from the unit's face buttons via setup menus, but I've never adjusted mine there (there are no dedicated Treble/Bass buttons or knobs on the unit).

Question 2

Is this item refurbished by Pioneer? Is it a class A Refurb?

Accepted Answer

It appeared to be refurbished by Pioneer: the box was new with Pioneer labeling and the refurb document had Pioneer labeling. The receiver works well, and it appeared new(no scratches or wear). The only sign it had been refurbished was the packaging for the remote and manual had been opened.

Question 3

How does this work with old computers and HMI for Vizio TV.  and Roku?

Accepted Answer

An old computer probably won't have a digital audio, HDMI, or optical output, so it probably won't work well. If basic basic stereo sound is all you're looking to get via a PC's old sound card, then it'll be great.

This receiver would work great with any TV with an HDMI ininput. If your Roku can output to HDMI, it'll work great and be easy to setup.

Questions & Answers