AP25 Installation and Operating Guide
Page 76
AP25 Installation & Operating Guide
Document # 9301H79500 Ver. 1.00
Note
: In this mode the surround Offset should be adjusted down by typically 2dB to achieve
proper surround level.
DCP includes HI – Select to route DCP HI In on pin 7 to the AP25 RCA jack. If disabled,
HI Out is mixed from DCP In L, R, C.
DCP includes VI – Select to route DCP VI-N on pin 8 to AP25 channel 16. This channel
becomes a fixed level, not affected by the fader value. Channel 15 becomes unavailable.
ES Matrix
– Select to play in an Extended Surround (ES) 5.1 configuration. Matrixed surround
format is a digital soundtrack format used in film and not a standard DCP format. The
surround channels from inputs 5 and 6 are matrix decoded to create a center back surround
channel that is routed to the back surround channels, or AP25 channels 7 and 8. The undefined
channels 9-16 are mapped directly to the AP25 channels 9-16.
Matrix
– Select to expand 2-channel mix to 5 channels or 5.1. Digital In channels 1 (L) and 2
(R) are sent through a matrix and output to AP25 channels Out 1-6 (L, R, C, Lfe, LS, RS) and
HI Out is mixed from DCP In L, R, C. The undefined channels 9-16 are mapped directly to the
AP25 channels 9-16.
Enable Bass Enhancement – Select to add bass enhancement to the matrix, in which the
low frequencies are routed to AP25 channel 4.
Copy Surrounds to Rears – Select to copy left and right surrounds to left and right rear
surrounds.
4.3.6.6
Decoder Setup
This screen is available for the following input sources:
Digital ch 1,2
Digital ch 9,10
TosLink A or B
S/PDIF Coax
HDMI 1-4
The AP25 accepts a DTS, DTS-HD, DTS-HDMA or Dolby® Digital audio stream from a DVD, Game
Console, Satellite link or other source device. The Encoded bit stream is automatically detected and
decoded internally by the AP25 software. The decoded stream is routed to the first eight channels
internally on the AP25.
The following digital inputs accept DTS or Dolby
®
Digital audio streams:
HDMI (ports 1 – 4 )
S/PDIF1 (TosLink A)
S/PDIF2 (TosLink B)
S/PDIF3 (Coax)
Operation
The AP25 monitors the selected input signal from one of the S/PDIF or HDMI ports to determine the
type of audio signal received. If a DTS, DTS-HD or Dolby Digital bitstream is detected, the AP25
decodes the audio and places it on the first 8 channels (see Table 1).
