Originally Posted by scrubsr1
The 401/402 gladly accepts and outputs 5.1 pcm via hdmi. What upsets me with this receiver is the fact that it won't matrix 5.1 to 7.1...very frustrating. Someone posted earlier in this thread that they were getting 7.1 through hdmi with the decode mode set to Dolby EX. I'm unable to replicate this. Looks like I'll be going optical until I can afford a new receiver. I'm using a ps3 by the way.
Unfortunately the manual is poorly written and the receiver itself has some quirks with how the modes interact. For example, the manual states for the subwoofer out:
When playing analog source or linear PCM software, no LFE
signals are emitted.
What they mean is a 2-channel analog or LPCM signal, since a 5.1-channel analog or LPCM signal inherently has lots of valuable data in that .1 channel. The manual uses "Linear PCM" to mean 2-channel, and uses the phrase "multi-channel PCM" to mean 5.1 or other variants.
The manual states (on page 11):
When selecting “A MULTI” setting for “AUDIO INPUT” or when
multi channel PCM signals (see page 34) are coming in with
selecting “HDMI” setting for “AUDIO INPUT,” the following items
are not available:
– DECODE MODE (see page 18)
– EX/ES/PLllx (see page 24)
– DUAL MONO (see page 24)
– SUBWOOFER OUT (see page 24)
– CROSSOVER (see page 25)
– LFE ATT (see page 25)
– Midnight Mode (see page 25)
– AUDIO DELAY (see page 26)
– DIGITAL EQ 63Hz/250Hz/1kHz/4kHz/16kHz (see page 28)
– BASS BOOST (see page 29)
– INPUT ATT (see page 29)
– Sound parameters for Surround/DSP modes (see pages 29
– Surround/DSP modes (see pages 33 to 37)
I need to check this, but I don't quite believe it. I should be able to set my sub-woofer out if I'm receiving a 5.1 "multi channel PCM" signal. It might be true for the multichannel analog inputs (the receiver assumes the source has done the bass management) and it would be consistent for 2-ch linear PCM to deny access to the SW output (as discussed above).
It may also be true that the decode mode can't be accessed and set to Dolby Digital EX while a 5.1 PCM signal is coming in, but maybe it can be selected beforehand, and stays active when the 5.1 PCM signal comes in.
It is also possible the poster that successfully used DD-EX with an HDMI input had the source providing the raw DD5.1 (or whatever) signal, and the receiver then will happily take that and matrix it using DD-EX. i.e. they weren't sending 5.1 PCM via HDMI, they were sending DD5.1.
I don't use my 401 in a 7.1 configuration right now, so I can't test it, but maybe that's something for someone to investigate???
AFAIK, interpreting the manual as best I can,