Specifications

MACKIE
24- and 32-Channel Sound
Reinforcement Consoles
First introduced almost five years ago (but
updated many times since), Mackie’s
SR24•4 and SR32•4 have totally redefined
the 24-and 32-input/4-bus mixer.
Feature-packed, extremely affordable,
American-made mixing consoles, complete with
awesome sonic performance, they incorporate the very latest in
manufacturing technology plus Mackie’s own proven horizontal,
multichannel front circuit board design. They are also designed to stand up to the
rigors of day-in and day-out live sound reinforcement, yet still have the required dependability
and pristine audio quality for professional studio applications as well.
The SR24•4 and SR32•4 provide superior mixing and recording. They feature major headroom, thanks to Mackie’s VLZ
circuitry. Main and submix amplifiers use distinctive negative-gain mix architecture to double the mix headroom of
conventional designs. Ultra-quiet high-headroom mic preamps on 20 (SR24•4) or 28 (SR32•4) mono channels mean
great-sounding vocals or instruments. Low-cut filter (on mono channels) centered at 75Hz allows you to cut out mic
thumps and wind noise. Four buses make live mixing a breeze by letting you control the overall level of those channels with
one fader. Six
aux sends per channel offer the flexibility to handle multiple chores at once. Two aux sends are switchable to
pre- or post-fader
so you can have 4 pre-fader aux sends, or 4 post-fader aux sends. They also feature a sweepable midrange
EQ (on mono channels) with midrange centering anywhere from 100 Hz to 8 kHz.
AUDIO MIXERS
376
FEATURES
EQUIPMENT LEASING AVAILABLE
PHOTO - VIDEO - PRO AUDIO
◆ Each channel strip has an input trim, 6
aux sends (2 prefader, 2 post-fader and
2 switchable pre or post), 3-band EQ
with sweepable mid-range (4-band EQ
on the stereo channels),pan control,
and mute,solo and bus assign switches.
A 60mm fader provides output gain for
each channel.
◆ The mono channel EQs provide a range
of ±15dB at the following frequencies:
12kHz shelving high-frequency EQ,
100Hz to8kHz sweepable peaking mid-
frequency EQ,and 80Hz shelving low-
frequency EQ.
◆ Stereo channels (21-24) provide ±15dB
of boost and cut at the following fre-
quencies: 12kHz shelving high-frequen-
cy EQ, 3 kHz peaking high-mid fre-
quency EQ, 800Hz peaking low-mid
frequency EQ,and 80Hz shelving low-
frequency EQ.
◆ They combine premium XDR mic preamps
with 60dB gain range, 130dB dynamic range
for hot 24-bit digital signals, massive +22dB
input handling capacity, 192kHz bandwidth
and 0.0007% THD with the best RFI resist-
ance of any compact SR mixer in the galaxy
thanks to advanced DC-pulse transformers.
◆ 20 (SR24) and 28 (SR32) XDR mic preamps
are impedance-independent,so the frequency
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 (18dB/octave at 75Hz), allowing you to
cut out mic thumps and wind noise that can
enter your mix and rob you of amp power.
◆ They have 20 (SR24) and 28 (SR32) mono
mic/line input channels, with XLR mic
inputs and 1/4˝ TRS line inputs, and 2
stereo line input channels with 1/4˝ TRS
inputs.
◆ You can mix any combination of channel
strips down to a single submix bus—or any
combination of the four submix buses.
Channels can be assigned to buses 1-2, 3-4,
and Main Mix L/R,and the 4 sub can be
assigned to Left and Right Main Mix,or
fed directly to a multitrack recorder. This is
incredibly helpful, not only in a live
situation, but in the studio as well.
Furthermore, each bus is “double-bused”
providing 8 eight outputs that can be
connected to an 8-track recorder without
repatching anything.
◆ Each sub out (1-4) and main out (L/R) has
a TRS insert jack. Furthermore,Mackie’s
unique “AIR”EQ circuit is included on each
of the four subgroups.This peaking EQ
circuit,centered at 16kHz,enhances guitars,
vocals, percussion,whatever, giving a gentle
“lift”to the extreme high end. The result is
extra detail and fidelity in the high end.
24•4-VLZ PRO/32•4-VLZ PRO
32•4-VLZ PRO