AMPLIFIER

AM4120 Integrated Mixer/Amplifier

Architects’ and Engineers’ Specifications

AM4120

The integrated mixer/amplifier shall have a nominal out- put power of at least 120W RMS. It shall operate on 115VAC or 230VAC at either 50Hz or 60Hz and have its source power supplied by a detachable IEC power cord. In addition the unit shall be capable of being directly powered by a 24Vdc source, such as storage batteries. It shall have a power switch on the front panel. The unit shall have a constant- impedance output to drive a 4load at its rated output. It shall also have 25V, 50V, 70V and 100V constant-voltage out- puts with like performance.

Inputs to the unit shall include: at least four actively bal- anced microphone; two unbalanced, stereo Aux; and an unbalanced signal processing return. Outputs shall include: at least two unbalanced Tape (auxiliary) jacks with a com- mon, continuously variable level control; and one signal pro- cessing send. Balanced connections shall be made through XLR connectors and unbalanced connections through RCA connectors.

Microphone Input 1 shall have adjustable sensitivity between mic and line, selected by a switch on the rear panel. This input shall also be programmable to completely exclude or attenuate all other inputs when its priority link is activated by either a contact closure or a VOX circuit, with a continu- ously adjustable threshold. The XLR connector for Input 1 shall be wired, in parallel, to a barrier strip on the rear panel. Microphone inputs 2-4 shall have a 24V phantom powering circuit that can be disabled with a switch on the rear panel. These inputs shall be equipped with a high-pass filter and a low-pass filter having a response of 12dB/octave and fixed

–3db points at 300Hz and 7kHz, respectively. Each of these filters shall be enabled by a switch on the rear panel. Additionally, these inputs shall be programmable to com- pletely exclude or attenuate all other inputs except for micro- phone input.

Two auxiliary voltage outputs shall be provided on the rear panel to drive accessory relays and LEDs. The relay out- put shall deliver +18Vdc at 300mA. Voltage shall go high when any microphone priority function is active.

The unit shall have, on its front panel, continuously vari- able controls for each microphone input, an auxiliary input selector switch, a master volume control, as well as bass and treble shelving filter controls. The shelving filters shall have a

range of ±12dB, with the frequency for the bass fixed at 100Hz and the treble fixed at 10kHz. LED status indicators shall be provided on the front panel to indicate power, signal present at the output terminals, peak signals near clipping and an overload condition.

The integrated mixer/amplifier shall be a model AM4120, manufactured by Mackie Industrial.

www.mackieindustrial.com

16220 Wood-Red Rd. NE, Woodinville, WA 98072 USA 888.337.7404, fax 425.487.4337, industrial@mackie.com

UK +44.1268.571.212, fax +44.1268.570.809, info@rcf-uk.com ITALY +39.0522.354.111, fax +39.0522.926.208, industrial@rcf.it FRANCE +33.3.8546.9160, fax +33.3.8546.9161, rcf.commercial@wanadoo.fr GERMANY +49.2572.96042.0, fax +49.2572.96042.10, industrial@mackie.de

Electronic files for this product available at: www.mackieindustrial.com

This Specification Sheet

AM4120.PDF

Quick-Start Manual

AM4120QS.PDF

Owner/Operator’s Manual

AM4120ML.PDF

Mackie Designs continually engages in research related to product improvement. New material, produc- tion methods, and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current Mackie Industrial product may differ in some respect from its published description, but will always equal or exceed the original design specifications

unless otherwise stated. ©1999-2001 Mackie Designs Inc. All rights Reserved. and are registered trademarks of Mackie Designs Inc. Mackie Industrial is a trademark of Mackie Designs Inc.

 

part no. 910-140-10 Rev.B

 

 

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Mackie AM4120 warranty Architects’ and Engineers’ Specifications

AM4120 specifications

The Mackie AM4120 is a versatile loudspeaker designed for various professional audio applications, including live sound, installations, and events. Renowned for its robust build and advanced technology, the AM4120 delivers exceptional sound quality, making it a popular choice among audio engineers and performers alike.

One of the standout features of the Mackie AM4120 is its 12-inch low-frequency driver, which produces powerful and impactful bass response. This driver is complemented by a high-frequency compression driver that delivers clear and articulate highs. Together, they create a balanced sound profile that can fill large spaces effectively while maintaining clarity and precision.

The AM4120 employs advanced waveguide technology that enhances the speaker's dispersion characteristics. This feature ensures that sound is distributed evenly across the listening area, minimizing dead spots and providing a consistent audio experience for audiences. The speaker's high-frequency output is also designed to maintain fidelity even at high volumes, allowing for dynamic performances without distortion.

Another notable characteristic of the Mackie AM4120 is its rugged construction. Built to withstand the rigors of touring and live events, the speaker features a durable cabinet made from high-quality materials. This design not only provides physical protection but also helps in reducing unwanted resonance, further improving sound quality. The AM4120 also includes a reinforced grille to safeguard the drivers from potential damage during transport and setup.

Additionally, the AM4120 is equipped with multiple input options, making it adaptable for various setups. It includes XLR and TRS inputs, allowing it to interface seamlessly with different sound systems. The speaker’s versatility is enhanced by its compatibility with both passive and active setups, giving users the flexibility to tailor their audio experience based on specific needs.

For enhanced user convenience, the Mackie AM4120 features integrated rigging points, allowing for easy mounting and suspension. This feature is especially beneficial for installations in venues where space is at a premium. The lightweight design further simplifies transportation and setup, making it a practical choice for mobile applications.

In summary, the Mackie AM4120 combines powerful sound output, advanced technology, and robust construction to deliver a compelling audio solution for a wide range of applications. With its balanced frequency response, durable design, and versatile connectivity options, it stands out as a reliable choice for professionals seeking high-quality sound reinforcement.