Arcam SR250 Custom Installation Notes

18
Dolby Volume (0x38)
Control the status of the Dolby volume system.
Example
Command/response sequence to turn the Dolby Volume system on:
Command: 0x21 0x01 0x38 0x01 0x01 0x0D
Response: 0x21 0x01 0x38 0x00 0x01 0x02 0x0D
Dolby Leveller (0x39)
Control the status of the leveller component of the Dolby volume system.
Example
Command/response sequence to set the Dolby Leveller to 5:
Command: 0x21 0x01 0x39 0x01 0x05 0x0D
Response: 0x21 0x01 0x39 0x00 0x01 0x05 0x0D
Dolby Volume Calibration Offset (0x3A)
Adjust the calibration oset of the Dolby volume system.
Example
Command/response sequence to set the calibration oset to -5dB:
Command: 0x21 0x01 0x3A 0x01 0x85 0x0D
Response: 0x21 0x01 0x3A 0x00 0x01 0x85 0x0D
COMMAND:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x38
Dl 0x01
Data 0x00 – Dolby Volume off
0x01 – Dolby Volume on
0xF0 – Request current Dolby Volume mode
Et 0x0D
RESPONSE:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x38
Ac Answer code
Dl 0x01
Data1 0x00 – Dolby Volume is off
0x01 – Dolby Volume is on
Et 0x0D
COMMAND:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x39
Dl 0x01
Data 0x00 — 0x0A – Set Dolby Leveller to 0 — 10
0xF0 – Request current Dolby Leveller setting
0xF1 – Increment Dolby Leveller setting
0xF2 – Decrement Dolby Leveller setting
0xFF – Turn off Dolby Leveller
Et 0x0D
RESPONSE:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x39
Ac Answer code
Dl 0x01
Data1 0x00 — 0x0A – Dolby Leveller setting is 0 — 10
0xFF – Dolby Leveller is off
Et 0x0D
COMMAND:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x3A
Dl 0x01
Data 0x00 — 0x0F – Set the calibration offset to 0 — 15dB
0x80 — 0x8F – Set the calibration offset to -1 — -15dB
0xF0 – Request current calibration offset
0xF1 – Increment the calibration offset by 1dB
0xF2 – Decrement the calibration offset by 1dB
Et 0x0D
RESPONSE:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x3A
Ac Answer code
Dl 0x01
Data1 0x00 — 0x0F – Calibration offset is 0 — 15dB
0x80 — 0x8F – Calibration offset is -1 — -15dB
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