Inter-M V2-2000 - Manual (Page 14)

PROFESSIONAL POWER AMPLIFIER
12 V2-1000/2000/3000/4000
3. OUTPUTS
Bridged Mono operation has a minimum load impedance of 4Ω.
Stereo/Parallel Connection
Bridge Mono Connection
Wiring Using Both Speaker Connectors
Wiring Two Speakers to the Channel A Speaker Connector
Wiring a Speaker in Bridged Mono to the Channel A Speaker Connector