Cable Box Digital 5.1 converted to Digital Stereo

My Comcast box will only output dolby bitstream, even if I set it to stereo in the main audio menu and in the setup menu that is invoked by pressing menu with the unit off....Comcast had no idea how to help me so fortunately my TV's dac downmixes to stereo pcm. Good luck, maybe you'll talk to a rep that's knowledgeable.

Give the tv optical output a try if so equipped. I am using optical to my NAD M51 dac and tv and netflix have never sounded better.

Thanks, I will try the optical output. However, my Dac or the Tascam recorder does not have an optical input. But, I do have an optical converter to RCA coaxial.
I'll give it try this weekend.

The cable box may have 2 channel analog outs that can feed the Tascam. Its DAC is not that good, but for the quality of the music, it is probably OK.

Is your cable box connected to a receiver? If so, you might be able to set the receiver to output 2 channel analog that could go to your Tascam. Given the low rez of the Cable signal, the receiver DAC would probably sound as good as you external DAC. It is also possible that the receiver will downmix the 5.1 Dolby to 2.0 PCM and output that over a digital out port.

The cable music signal is probably 128 kbps or lower. As Kal says, I would not stress over getting the signal to a good DAC.

Gefen makes a optical/S/PDIF DD to analog converter.

http://www.gefen.com/gefentv/gtvproduct.jsp?prod_id=5980

If you get it working, one trick, at least for non-classical music, is to use Sound Hound on your phone to develop a list of songs being played. It is a manual process but I use it when I get files that are not tagged.

Thanks Dtc, for your info and help. I'll give it all a try this weekend.

FYI, I had to go out of the TV rather than the analog out of the cable box.....I had a nasty ground loop hum that only appeared in that config.