Mackie manual Physical CONFIGURATION. The mixer shall have, SR244-VLZ PRO

SR24•4-VLZ PRO MIXER

SR24•4-VLZ PRO

9.OUTPUT AND MONITORING CONTROLS AND SWITCHES. The mixer shall include one linear fader control for gain adjustment of main L/R outputs, covering a range from infinite attenuation to +10 dB above unity gain. A tape monitor switch shall alternately select either the main L/R outputs or the signal at the tape inputs as the source for the control room and headphones monitoring circuits. There shall be a stereo dual-channel rotary control for gain adjustment of the control room and headphone monitor output. The mixer shall have a stereo dual-channel control for adjustment of the monitoring level of the internal solo signals, and a light to indicate channel solo condition. The solo system shall be capable of switching between PFL (pre-fader listen) and AFL (after-faderlisten––solo in place) operation.

10.OUTPUT METERING. The mixer frame shall include two 13-segment LED meters each displaying a signal range from –40 dBU to +10 dBu, each with an additional LED indicating mixer clipping level at +22 dBu. The meters shall monitor the main left and right output channels; alternately, the meters shall monitor the tape return sig- nals when the tape monitor switch is depressed; or, the soloed input channel signals when the solo switch is depressed.

11.AUXILIARY SEND CONNECTIONS. The mixer shall include impedance balanced, line-level outputs from the six auxiliary send buses, appearing on the rear panel as 1/4" TRS phone jacks.

12.AUXILIARY RETURN CONNECTIONS. The mixer shall include 4 stereo auxiliary return inputs. Each auxiliary return shall have a left and a right balanced line-level input, accommodating a nominal line level of between –10 dBu and +4 dBu, and shall appear on the rear panel as 1/4" TRS phone jacks. The jacks shall be fitted with internal switching contacts to accommodate monaural configuration.

24-Channel Sound Reinforcement Console

13.AUXILIARY RETURN CONTROLS AND SWITCHES. The mixer shall include 4 dual-channel auxiliary return gain controls, each feeding the main stereo buses. Auxiliary returns 1-2 shall have their signals assignable to auxiliary send buses 1 and 2, respectively, through rotary level con- trols. Auxiliary return 4 shall be assignable to three differ- ent pairs of destinations, feeding either the main left and right buses or the submix buses.

14.PHYSICAL CONFIGURATION. The mixer shall have

a steel chassis frame painted grey-black and designed to rest on a horizontal surface. The SR24•4-VLZ PRO’s dimen- sions shall be 6.1" (155mm) high by 31" (787mm) wide by 19.2" (487mm) deep.

15.SPECIFICATIONS. In addition to specifications previously cited, the mixer shall meet or exceed the fol- lowing specifications. Frequency response, microphone input to any output, 20 kHz to 60 kHz, +0 dB/ –1 dB; Total Harmonic Distortion (THD), any input to any output, 1 kHz @ +14dBu, 0.004%; Equivalent Input Noise (EIN), microphone input to insert send, –129.5 dBm; Common Mode Rejection (CMR), microphone input to insert send, maximum gain, 1 kHz, better than 90 dB; Typical Main Output noise, all channels assigned, odd channels panned left, even channels panned right, all faders down –94.7 dBu; Signal to Noise ratio, ref +4 dBu operating level, 90 dB; Attenuation, ref. 0 dB @ 1 kHz, Main Mix level con- trol down, –85 dBu; Channel Mute engaged, –84 dBu; Channel Gain control down, –83 dBu; Input impedance, microphone inputs, 1.5 kΩ; Channel Insert return, 2.5 kΩ; all other inputs, greater than 10 kΩ; Output impedance, Tape Out, 1.1 kΩ; All other outputs, 120Ω.

16.DESIGNATION. The mixer shall be a Mackie

SR24•4-VLZ PRO.

www.mackie.com

16220 Wood-Red Road NE, Woodinville, WA 98072 USA 800.898.3211, fax 425.487.4337, sales@mackie.com

UK +44.1268.570.808, fax +44.1268.570.809, uk@mackie.com

Electronic files for this product available at: www.mackie.com/installed

This Specification Sheet	SR24VLZPRO_SS.PDF
Owner/Operator’s Manual	SRVLZPRO_OM.PDF

LOUD Technologies continually engages in research related to product improvement. New material, production methods, and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current LOUD Technologies product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated. ©1999–2004 LOUD Technologies Inc. All rights reserved. Mackie and the “Running Man” figure are registered trademarks of LOUD Technologies Inc.

Part No. 0003711 Rev A2 9/04

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