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PCM 2.0 My Bose 321 System shows PCM 2.0 when I watch TV (DirecTV). I have a friend that has the same system and his display reads "Dolby Digital 5.1". He says that it has better surround sound than mine when watching TV. How do I change mine from PCM 2.0 to Dolby Digital 5.1? I have a Bose V20 system and the display shows PCM 2.0. Is this different or better than Dolby 5.1?

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Re: PCM 2.0

I had the same problem with my 321 system. The fix is in the cable box settings. You want to change the Digital Out on the cable choices were HDMI....Dolby Digital..and None. Choose Dolby Digital and it will show up on your Bose 321 display. I also have my cable box connected to my bose system via optical digital cable...and a digital coaxel cable from my dvr to my bose. Change that output setting on my cable box took care of the PCM 2.0 problem for me.

Posted on Dec 11, 2008

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Re: PCM 2.0

I have the Bose 3-2-1 GS Series II and initially could only get PCM audio. However, I now get Dolby Digital 2.0 and 5.1 audio through the following connections: 1) Connected a coaxial digital audio cable from Digital Audio Out (coaxial) on the HD cable box to CBL-SAT (D) on the Bose Media Center. 2) Connected a coaxial digital
audio cable from Digital Audio Out (coaxial) on my Toshiba DVD Recorder/Player to AUX (D) on the Bose Media Center. All video connections are from the cable box to the TV and from the Toshiba recorder/player to the TV. To receive Dolby Digital audio, I press either CBL-SAT or AUX on the Bose Remote Control. Good luck!

Posted on Jan 04, 2008

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Change from 2.0 to 5.0

Sounds like your Cable box audio settings are outputting two channels (stereo) instead of five channels (surround). It could be on an automatic setting, meaning whatever the digital audio stream coming from the TV channel is, your Bose system will play audio in that config. Hence why it changed from 5.0 to 2.0.
Go into your Cable box audio settings and change the output to Dolby Digital (or similar). You will also need to be connected via a digital optical cable from your cable box to your Bose 321 to output true digital audio.
If you post the make and model of your cable box I might be able to give you more direct instructions on how to do this if your still having trouble.

Oct 29, 2012 | Bose (321GS) System

1 Answer

Have a Bose 3-2-1 Series III. When I put in a DVD, I get sound through the Bose but no picture on my Pioneer TV. This is the second time it has happened. The first time it, we managed to get it going...

Here are 3 things to try and an if all else fails at the end.

1) Make sure the TV is set to the correct Video Input to see the video from DVDs on the Bose system.
• Make sure a DVD is in the disc tray.
• If the TV is connected to the media center using the HDMI cable:
Switch from one Video Input to another and then back to the original input.

2) Turn everything off, then:
Turn on the TV and set the TV Video Input for the Bose system video.
Turn on the Bose system and press DVD.

3) Turn off both the TV and the Bose system and then:
Unplug the HDMI cable from both ends.
Disconnect the power cables from both your TV and the Bose 321 system.
Re-connect power to the TV and to the Bose 321 system.
When the Bose 321 system startup message disappears from the display,
re-connect the HDMI cable to the TV then Bose 321 system.
Turn on the TV first, then turn on the Bose 321 system.

If all the above fail then disconnect the HDMI cable that connects the TV to the Bose 321 system and reconnect the two using a Component cable, an S-Video cable, or the Composite cable provided with the system.

Please leave feedback



Apr 28, 2011 | Bose 3·2·1 II System

1 Answer

I have a Sharp Aquos with a optical output, i conected it to the tv optical input of the panasonic sc ptx7 but it doesnt have audio via optical,on the contrary via rca works perfectly.

check the following on ur tv

1. Press MENU to display the MENU screen,
and then press c/d to select "Digital
2. Press a/b to select "Audio Setup", and then
press ENTER.
3. Press a/b to select "PCM" or "Dolby
Digital", and then press ENTER.
4. Press MENU to exit.

PCM The optical output terminal output studio signal in PCM form. If your digital audio system does not support Dolby Digital, select "PCM".

Dolby Digital
The optical output terminal outputs audio signal in Dolby Digital form. it reproduces sound from surround program of digital.

also check the input assignment of ur dvd palyer's tv input. if it is selected as analog then change it to digital.

Dec 20, 2010 | Panasonic SC-PTX7 Home Theater System With...

1 Answer

I have a friend with a 321 system. He says it

Unfortunatley no, its not software that reads dual layer discs, its hardware. I sold Bose for 2 years and do not know of any Bose items that will read dual-alyer discs. Dr. Bose has a hard time keeping up with technology sometimes. Other than that, the 321 is a great system!

Oct 02, 2009 | Bose 3 2 1 GSX System

2 Answers

Bose 321 display is only Black and White..all movies too

Could just be the dvds? Or not...

Replace the laser that reads the discs!

Jul 07, 2009 | Bose 3 2 1 GSX System

1 Answer

Pretty much the same problem

I have the same system. I have a Lifestyle and a Sony TV with a Samsung Blueray player. I also have an X-box 360, plus my pc with all my CDs (I-tunes) plays through my bose. Do this:

1. Use the optical cable for the blueray player to the Bose (AUX).
2. Use a digital audio cable from the cable box (either black or orange output) to the Bose CBL-SAT digital input. (it's a single audio cable)
3. For my PC, I'm using a digital cable from the pc to the Bose. I'm using the TV output because it's empty.
4. For my x-box (which I'm not too happy about) I'm using regular red-white audio cables from Bose TV input directly to the TV audio out. (You can play all of the above through this channel, but don't).

I figured the most important high quality sound should come from the blueray player and from watching regular cable tv. For picture, you should be using all HDMI connections.

Hope this helps.

Jun 26, 2009 | Bose Lifestyle 38 DVD Home Entertainment...

1 Answer

Bose PS 3-2-1 II speaker exspansion

Unfortunately this is impossible on the 321 series II systems. There also is no audio output on the media center to send to another amp either. As you may know, the 2 speakers are actually 4 speakers. Each small speaker array has 2 drivers. The 2 on the outside will project rear-channel audio to the sides, so placement of these speakers is important. Honestly, adding speakers would not make this sound very good. If the sound isn't too great as is, make sure you're using digital audio cables (optical or coax) from any external sources like a cable box or Blu-ray player. (if you don't see a Dolby Digital 5.1, DTS 5.1 or PCM 2.0 read-out on front of the media center, you'll know it's not digital. DVDs the exception)

Jun 18, 2009 | Bose 3·2·1 II System

1 Answer

Bose 321 is unable to read 6Channel AC3 Audio. Any way it can read the same?

This is true. The 321GSX will decode Dolby Digital 5.1, DTS 5.1 or PCM 2.0 digital signals from external sources (like most receivers) but will not decode any 6.1 content. AC3, mp3, mp4, wav, aiff all should work from a properly formated CD or DVD (must be -R or -RW format, or commercial), but not multi-channel AC3 content.

Jun 10, 2009 | Bose 3 2 1 GSX System

3 Answers


I had my older bose 321 hooked up through vcr and sounded great. Then hooked it up through directv receiver and sounded better. then switched from direct to comcast and hooked the bose up throught the comcast hd receiver and the volume is aweful. same deal, have to crank it up high. Since the stereo built into the tv sounds so much better I disconnected the bose and am going to sell it.

Dec 28, 2007 | Bose 3 2 1 GSX System

1 Answer

Bose 321

PCM means it thinks you have a digital cable hooked between the TV and Bose (most TV's don't have digital audio outs...). You will have to use the menus to change the TV input to use the ANALOG cables (assuming thats what you're using...).

Sep 09, 2007 | Bose 3 2 1 GSX System

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