Originally Posted by Steve Bruzonsky
WRONG. I already had my CB3 HD set up using only 2 channels, and 2 channels plus subs, for two channel; and using multi-channel - but with phantom center as my front left and right are the very best sonics when i sit in my preferred most musical center recliner - with multi channels plus subs.
I set up separate CB3 HD modes in both 2 ch and multi ch using Matrix mode, in addition to the 2 ch plus subs stereo and multi ch plus subs Dolby Pro Logic 2X inputs already set up.
My low and hi pass CB3 HD digital crossovers are set at 80 Hz 12 dB.
Let me assure you that when I play the inputs with Matrix, that the subs are movin and shaking and soundin' just as they do in stereo or Dolby Pro Logic 2X.
This is how the digital Matrix mode has always been for the CB3 as far back as I can recall with CB2 and even CB1.
I did find that the Matrix mode is louder than the DPL2x and stereo modes, so I compensated in speaker levels for this.
Now, when I play any music, I have a choice of five different CB3 HD inputs to "see" what I want to listen to the music in - 2 channel Matrix no subs; 2 channel Matrix with subs; 2 channel Stereo with subs; multi-channel DPL2x with subs and phantom center channel; and multi-channel Matrix with subs and phantom center channel!!@@
Thanks for taking time to post results. Not WRONG as far as my unit is concerned and I am quite intrigued that you had different results. If we have a 3rd person test this, then we'll know which one of us has a special unit. I am using Linkwitz crossovers, maybe the crossover type selected makes a difference. If I put my ear near the sub, it is playing full range in "Matrix" from a stereo source (DirecTV DVR in this case, had it set to output PCM). L/R xovers are set to 80hz 12db and mode is set to "xover", same for center speaker (you can't actually set the xover frequency or slope on the subwoofer menu itself in the CBIII)
The CB manual does not indicate bypassing xovers for the below Matrixed modes, except for analog Matrix which plays the L/R at full range (bypasses xovers for L/R only) - but, it would seem that all Matrix modes should create the proper sub channel for the subwoofer if L/R/C are set to 'xover'. Perhaps my unit is not working as intended. I've had it back to Theta 3 times now.Matrix (MATX):
The signal routed to the center speaker is equal to the left plus right input signals and the
mono signal routed to the surround speakers is equal to left minus right signals. Crossing over any
speaker(s) produces sub channel(s).Special Matrix (SPCL MATX):
A mode similar to Dolby Pro Logic with more ambience retrieval in the
surround speakers. Crossing over any speaker(s) produces a sub channel.Analog Matrix (ANLG MATX):
The signal routing in this mode is the same as Analog Direct (ANLG DRCT),
(left & right analog input signals routed directly to the main outputs via the volume controls), and at the same
time the input left and right signals are routed through an analog to digital converter and matrixed in order to
derive the other channels, which include left & right surround, sides, center and center surround. These
other channels can have EQ and be crossed over (creating a SUB channel), but the front left and right
channels will carry only the direct analog signal. The Analog Matrix mode processes a 2-channel analog
input signal only.
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