User's Manual

SONAMP

875D SE 8-CHANNEL AMPLIFIER

Serial Control Notes:

1. The 875D SE will respond to each command with the new value after the command is acted-upon.

EExxaammppllee::

Zone 2 volume is 53. If a “:V2+3” (increase Zone 2 volume +3 steps) command is then issued, the 875D SE

echoes back (V256) (Zone 2 volume is 56).

2. The 875D SE will respond to invalid commands with “ERR”.

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A “:V7?” poll is received (What is Zone 7 volume?). Since there is no Zone 7, the 875D SE echoes back “ERR”.

3. The 875D SE will respond with “N/A” if a recognized command cannot be executed.

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Zone 4 is OFF when a “:V4?” (What is Zone 4 volume?) query is received. Since Zone 4 is OFF, the 875D SE

echoes back “N/A”.

4a. Any command followed by a “?” will be treated as a Query and will cause the 875D SE to echo back the current state

for that zone (z) or channel (c).

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Zone 4 is OFF and a “:P4?” query is received. The 875D SE echoes back “P40” (Zone 4 power is OFF).

4b. A command followed by a “G?” will be treated as a Global query and will cause the 875D SE to echo back the

current state of each zone or channel.

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A “:BPG?” (Is BBE ON or OFF in Zones 1 – 4?) query is received. The 875D SE echoes back:

BP11 (Zone 1 BBE is ON); BP21 (Zone 2 BBE is ON); BP30 (Zone 3 BBE is OFF); BP40 (Zone 4 BBE is OFF)

5. When an over-temperature or fault condition occurs, activating the amplifier’s protection circuits, the 875D SE will issue

an unsolicited echo reporting that condition.

EExxaammppllee 11::

If the temperature inside the amplifier reaches 68°C, it will issue the unsolicited echo “TP68”.

EExxaammppllee 22::

If Zone 1 experiences a fault the amplifier will issue the unsolicited echo “FP1”.

6. When the amplifier is plugged-in it will automatically issue its AMX beacon.