PUBLIC ADDRESS AMPLIFIER
7
PAM-120A/340A/480A
Rear Panel
Rear Panel
(PAM-340A/480A)
1. SPEAKER OUTPUT TERMINAL STRIP
Connect up to five individual speakers to this strip.
Impedances for 100V operation are shown below. Connect speakers whose combined impedance is equal to
or higher than the rated output impedance, as shown below.
2. ANTENNA CONNECTOR (OPTIONAL)
This terminal is used to connect the antenna, when used with the optional PAM-T AM/FM Tuner module.
3. EQ CONTROLS
Three-band equalization control provides ±12dB of cut (decrease) or boost (increase) over the high, mid and
low frequency ranges of the individual channel signals.
4. PHANTOM POWER SWITCH
This switch turns the phantom power supply on or off for all channels. When the switch is turned on, +22V
DC power is supplied to pins 2 and 3 of each channel’s input connector.
Use phantom power when connecting condenser microphones, which require an external power supply.
NOTE: It is safe to connect most modern dynamic microphones or line level devices to the channel inputs
when phantom power is activated. However, some older ribbon microphones may be damaged by
phantom power, and certain unbalanced line level devices may malfunction or produce an audible
hum when phantom power is active.
MODEL 100V
PAM-340A 29.4Ω
PAM-480A 20.8Ω
HIGH MID LOW
10kHz, ±12dB 1kHz, ±12dB 100Hz, ±12dB
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