Inter-m PAM-480A User Manual

PUBLIC ADDRESS AMPLIFIER
10
PAM-120A/340A/480A
Connecting Speakers
Connecting Speakers
Before connecting speakers, disconnect the AC power cable. Note the proper connecting terminals as shown
below. Make certain that the total impedance is not less than the rated impedance indicated.
CONNECTING 4Ω OR 8Ω SPEAKER SYSTEMS (only PAM-120A)
CONNECTING HIGH-VOLTAGE DISTRIBUTED SPEAKER SYSTEMS
Total rated input of up to 120W (PAM-120A) or 340W (PAM-340A) or 480W(PAM-480A)
When connecting conventional 4Ω or 8Ω speaker systems, connect the speaker’s positive (+) side to the
terminal labeled 4. Connect the speaker’s negative (–) side to the terminal labeled COM. See illustration
below:
When connecting a high-impedance speaker system in parallel, you can connect speakers with a total
rated input of up to 120W (PAM-120A) or 340W (PAM-340A) or 480W(PAM-480A).

Inter-m PAM-480A Specifications

General

Type	Power Amplifier
Output Power	480W
Channels	2
Total Harmonic Distortion (THD)	< 0.1%
Signal-to-Noise Ratio	> 100dB
Cooling	Fan
Frequency Response	20Hz - 20kHz (±0.5dB)
Input Impedance	20kΩ
Output Impedance	4Ω / 8Ω
Power Source	AC 220V~240V 50/60Hz