Mackie AM4120 warranty Features, A P P L I C At, AM 4000 Series, Amplifier, Paging Systems

AM 4000 Series

■The AM4120 is designed for continuous duty

in speech, music, paging and sound reinforcement applications in churches, schools, offices, arenas, hotel meeting rooms, convention centers, recreation facilities and other venues demanding high performance, flexible features and rugged dependability.

■Four microphone inputs are actively balanced, have XLR connectors, and can be programmed to interrupt or attenuate the line level inputs. Microphone inputs 2-4 feature switched 24V phantom power and switched high-pass and low-pass filters. Microphone Input 1 can be switched to line level, set to have priority over all inputs, and can be activated by either VOX with an adjustable threshold or a contact closure. Activation of any microphone override provides 18Vdc (300mA) at a barrier connector on the rear panel, which may be used to drive LEDs or relays. Two unbalanced, stereo Aux inputs are internally summed to mono and selected by a switch on the front panel. Two unbalanced Tape (auxil- iary) line level outputs with a level control and an unbalanced signal processing loop are also provided. All are terminated to RCA connectors.

■Output modes include 4Ω and 25V, 50V, 70V and 100V constant voltage. The smart output stage is fully protected against permanent damage caused by over- loading, shorts and extreme temperatures. The AM4120 will operate on either 115 or 230VAC, 50/60Hz sup- plied by a detachable IEC power cord. Insulated termi- nals to connect a backup 24Vdc battery are provided on the rear panel. Switchover to DC is automatic.

■The front panel provides level controls for each

Mic, selected Aux and Master volume, as well as the Bass and Treble shelving filters. The control knobs can be easily removed for security, and their recessed shafts covered with inserts supplied with the unit. LEDs indicate power, signal present at the output, peak and output overload. 12dB/octave Bass and Treble shelving equalization with up to 12dB of boost or cut at 100Hz and 10kHz can be applied to the output signal.

■Accessories include an easily installed chime card.

■This Mackie Industrial product is covered by an exclusive, one-time, NO FAULT repair policy in addition to a five year limited warranty.

AM4120	AMPLIFIER
Integrated Mixer/Amplifier

AM4120

Features

■4 Lo-Z, XLR Microphone Inputs■2 Stereo Auxiliary Inputs■120 Watt RMS, Convection Cooled■4Ω - 25V - 50V - 70V - 100V Outputs■Switched 24V Phantom and H-P/L-P Filters■2 Tape/Aux Outputs with Level Trim■Signal Processing Loop■2 RU Rack Mounting Kit included■Automatic 24Vdc Backup Power Input

■ Foreground/Background Music Systems		S
■ Sound Reinforcement Systems
		ON
■ Paging Systems
■ Continuous-duty Applications		I
		A P P L I C AT
	1	O F 4 P A G E S