Yamaha V1.6 PX10/PX8/PX5/PX3 V1.6 Reference Manual [English] - Page 30

 LIMITER (Advanced mode only) For changing the settings of the limiter depending on the speaker specifications, in order to protect the speaker. q Channel w e Input processor D-Contour Delay Speaker processor HPF LPF Polarity Speaker Delay 6 Band PEQ Level Limiter q ON/OFF Turns the limiter on/off. w THRESHOLD Sets the threshold beyond which the limiter is activated according to output power (Watt). NOTE • When a speaker is selected with Configuration Wizard, "THRESHOLD" is automatically set. • When connecting speakers in parallel, set this parameter according to the specified output power for a single speaker. e IMPEDANCE (Ω/UNIT) Sets the impedance of the speaker for connection (16Ω, 12Ω, 8Ω, or 4Ω). When connecting speakers in parallel, set this parameter by a single speaker's impedance. Panel Operation - TUNING screen  CHANNEL LINK (Advanced mode only, if "SP TYPE" is "FULL+FULL" or "SUB+SUB") Links the parameter setting of channel A and channel B. Channel q q ON/OFF When the setting is changed from off to on, the device initially makes the settings of channel A and channel B identical. If a setting is operated for channel A, the settings of channel A are copied to the settings of channel B. If a setting is operated for channel B, the settings of channel B are copied to the settings of channel A.  CHANNEL COPY (Advanced mode only; when "SP TYPE" is set to "FULL+FULL" or "SUB+SUB") Copies settings between channels. q w q Ach -> Bch Copies the settings of channel A to channel B. w Bch -> Ach Copies the settings of channel B to channel A. PX10/PX8/PX5/PX3 Reference Manual 30