Arcam SR250 Custom Installation Notes

21
Request incoming audio format (0x43)
Request the incoming audio format.
Example
Command/response sequence to request the incoming audio format, where the
format is Dolby Digital 5.1:
Command: 0x21 0x01 0x43 0x01 0xF0 0x0D
Response: 0x21 0x01 0x43 0x00 0x02 0x02 0x1A 0x0D
COMMAND:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x43
Dl 0x01
Data 0xF0 – Request incoming audio format
Et 0x0D
RESPONSE:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x43
Ac Answer code
Dl 0x02
Data1 Audio stream format:
0x00 – PCM
0x01 – Analogue Direct
0x02 – Dolby Digital
0x03 – Dolby Digital EX
0x04 – Dolby Digital Surround
0x05 – Dolby Digital Plus
0x06 – Dolby Digital True HD
0x07 – DTS
0x08 – DTS 96/24
0x09 – DTS ES Matrix
0x0A – DTS ES Discrete
0x0B – DTS ES Matrix 96/24
0x0C – DTS ES Discrete 96/24
0x0D – DTS HD Master Audio
0x0E – DTS HD High Res Audio
0x0F – DTS Low Bit Rate
0x10 – DTS Core
0x13 – PCM Zero
0x14 – Unsupported
0x15 – Undetected
0x16 - Dolby Atmos
0x17 - DTS:X
0x18 - IMAX ENHANCED
Data2 Audio channel configuration:
0x00 – Dual Mono
0x01 – Centre only
0x02 – Stereo only
0x03 – Stereo + mono surround
0x04 – Stereo + Surround L & R
0x05 – Stereo + Surround L & R + mono Surround Back
0x06 – Stereo + Surround L & R + Surround Back L & R
0x07 – Stereo + Surround L & R containing matrix information for surround
back L&R
0x08 – Stereo + Centre
0x09 – Stereo + Centre + mono surround
0x0A – Stereo + Centre + Surround L & R
0x0B – Stereo + Centre + Surround L & R + mono Surround Back
0x0C – Stereo + Centre + Surround L & R + Surround Back L & R
0x0D – Stereo + Centre + Surround L & R containing matrix information for
surround back L&R
0x0E – Stereo Downmix Lt Rt
0x0F – Stereo Only (Lo Ro)
0x10 – Dual Mono + LFE
0x11 – Centre + LFE
0x12 – Stereo + LFE
0x13 – Stereo + single surround + LFE
0x14 – Stereo + Surround L & R + LFE
0x15 – Stereo + Surround L & R + mono Surround Back + LFE
0x16 – Stereo + Surround L & R + Surround Back L & R + LFE
0x17 – Stereo + Surround L & R + LFE
0x18 – Stereo + Centre + LFE containing matrix information for
surround back L&R
0x19 – Stereo + Centre + single surround + LFE
0x1A – Stereo + Surround L & R + LFE (Standard 5.1)
0x1B – Stereo + Centre + Surround L & R + mono Surround Back + LFE
(6.1, e.g. DTS ES Discrete)
0x1C – Stereo + Centre + Surround L & R + Surround Back L & R + LFE (7.1)
0x1D – Stereo + Centre + Surround L & R + LFE, containing matrix
information for surround back L&R (6.1 e.g. Dolby Digital EX)
0x1E – Stereo Downmix (Lt Rt) + LFE
0x1F – Stereo Only (Lo Ro) + LFE
0x20 – Unknown
0x21 – Undetected
Et 0x0D

Arcam SR250 Specifications

General

Receiver type	stereo
Audio output channels	2.1 channels
Signal-to-Noise Ratio (SNR)	110 dB
Power consumption (standby)	0.5 W
Power consumption (typical)	600 W
3D	Yes
Card reader integrated	No
Package weight	18500 g
Supported radio bands	DAB, DAB+, FM
12V trigger ports quantity	2
Speakers connectivity type	-
HDMI in	7
USB ports quantity	1

Weight and Dimensions

Depth	425 mm
Width	433 mm
Height	171 mm
Weight	15100 g