Mackie SR24.4-VLZ PRO Specification Sheet

Introduction
 THE SR24•4-VLZ PRO is the latest update of our SR24•4
sound reinforcement console, incorporating our ultra-high
quality XDR™ (Extended Dynamic Range) mic preamps with
the best RFI rejection of any sound reinforcement mixer
design on the market.
 Like all Mackie mixers, the SR24•4-VLZ PRO is designed
for rugged, 24-hour-a-day use. With its multiple input/
output configurations, true 4-bus architecture, 6 aux
sends, and extensive routing capabilities, it can be used
in a variety of live sound and recording applications. Its
sturdy steel construction houses rugged, double-sided
SMT-plated fiberglass circuit boards, and 60 mm faders
with ultra-tight lip seals for keeping out dust and other
contaminants. Impact-resistant knobs are mounted so they
"ride" just above the steel chassis.
 The SR24•4-VLZ PRO has 20 mono mic/line input chan-
nels, with XLR mic inputs and 1/4" TRS line inputs, and 2
stereo line input channels with 1/4" TRS inputs. All mono
channels have TRS insert jacks (tip = send, ring = return).
Each channel strip has an input trim, 6 aux sends (2 pre-
fader, 2 post-fader, and 2 switchable pre or post), 3-band
EQ with sweepable midrange (4-band EQ on the stereo chan-
nels), pan control, and mute, solo, and bus assign switches.
A 60 mm fader provides output gain for each channel.
 Twenty XDR mic preamps provide high-headroom and
low-noise. They are impedance-independent, so the fre-
quency response remains constant whether the mic preamp
is presented with an extremely high- or low-impedance
load. Additionally, each channel has its own switchable
low-cut filter (18 dB/octave @ 75 Hz).

The mono channel EQs provide a range of ±15 dB at the
following frequencies: 12 kHz shelving high-frequency EQ,
100 Hz to 8 kHz sweepable peaking mid-frequency EQ,
and 80 Hz shelving low-frequency EQ. The stereo channels
(21-24) provide ±15 dB of boost and cut at the following
frequencies: 12 kHz shelving high-frequency EQ, 3 kHz
peaking high-mid frequency EQ, 800 Hz peaking low-mid
frequency EQ, and 80 Hz shelving low-frequency EQ.
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R E L A T E D P R O D U C T S
SR32•4-VLZ PRO
SR24•4-VLZ PRO
24-Channel Sound Reinforcement Console
Features
Low noise/high headroom XDR™ (Extended Dynamic

Range) mic preamps with excellent RFI rejection
New high-performance 2068 op-amps for incredibly low

noise and distortion
Improved cooling for even greater thermal protection

20 mic/line mono, and 2 stereo line channels

True 4-bus design

Solo, pan, and 16 kHz Air EQ on each submaster

6 individual aux sends per channel (2 pre, 2 post,

2 switchable pre/post)
3-band swept midrange EQ on mic channels;

4-band fixed on stereo line channels
75 Hz low-cut filters on mic channels

Mute, solo, signal present and OL LEDs on every channel

6 aux send masters with individual solos

4 stereo aux returns with EFX monitor

Separate Talkback section with mic preamp

Double-bused sub outs for easy multi-track routing

Balanced stereo TRS & XLR main outputs

Balanced XLR mono output with level control

Applications
Live sound mixing

Multi-track recording

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