Mackie SRM1850 Specifications

SRM1850

The SRM1850 18" Powered Subwoofer is “Built-like­a-Tank,” delivering 1600W of intense power paired with
a custom high-output woofer for powerful, chest-pounding
low end performance. The professional-grade, internally­braced all-wood enclosure provides tour level road­worthiness and is front ported for maximum low-frequency
extension and punch.

The SRM1850 features stereo XLR inputs, full-range
and high-pass outputs plus a variable digital crossover that
includes presets for the SRM550 and SRM650 loudspeakers.

The Smart Protect™ DSP is also in place to protect
your investment when things get pushed a little too hard.
Get the powerful low end your music demands in a rock
solid subwoofer with our proven performance.

FEATURES:

■ 1600W of intense power paired with a custom

high-output 18" woofer delivers chest-pounding
low end performance

SRM1850

1600W
18" Powered Subwoofer

■ “Built-Like-A-Tank” all-wood, internally-braced cabinet

delivers professional-grade road-worthiness and
near-zero distortion, even at high volume

■ Front ported for maximum low-frequency extension

and punch

■ Stereo XLR inputs plus Stereo XLR full-range and

high-pass outputs

■ Integrated digital crossover with variable control and

presets for the SRM550 and SRM650 loudspeakers

■ Smart Protect

when things get pushed a little too hard

■ Built-in cup for easily pole-mounting full-range

loudspeakers

™

DSP kicks in to protect your investment

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SRM1850

1600W
18" Powered Subwoofer

SRM1850 SUBWOOFER SPECIFICATIONS

Acoustic Performance

Frequency Response (–3 dB) 40 Hz – 120 Hz

Frequency Response (–10 dB) 35 Hz – 150 Hz

Max peak SPL 132 dB

Crossover Point 115 Hz plus alignment delay [SRM550]
115 Hz plus alignment delay [SRM650]
60 Hz – 120 Hz [Variable]

Slope 3rd order HP, 4th order LP

Transducer

Woofer Diameter 18.0 in / 457 mm

Voice Coil Diameter 3.0 in / 76 mm

Subwoofer Diaphragm Material Paper

Magnet Material Ferrite

Power Amplifier

Rated Power 800 watts rms
1600 watts peak

Rated THD < 1%

Cooling Convection

Design Class D

Input / Output

Input Type Female XLR balanced
differential (stereo left / right)

Input Impedance 20 k
10 k

Full Range Outputs Male XLR balanced
(parallel with inputs – mono)

High Pass Outputs Male XLR balanced

Line Input Power

US detachable line cord 90 – 130 VAC, 60 Hz, 200W

EU detachable line cord 190 – 240 VAC, 50 Hz, 200W

AC Connector 3-pin IEC 250 VAC

Power Supply Type Switchmode

Operating Temperature 0 - 40 ˚C
[extended ambient temperature] 32 - 104 ˚F

balanced,

unbalanced

Safety Features

Input Protection Peak and RMS limiting, power supply
and amplifier thermal protection

Display LEDs Defeatable front power ON
(Running Man logo),
Front load power limiter,
High Pass Mode, input signal

Construction Features

Cabinet 18 mm Poplar plywood

Finish High durability black paint

Handles One on each side

Grille Powder-coated 16 gauge steel

Mounting Method

The SRM1850 subwoofer is designed to sit on the floor or stage.
It is NOT designed to be pole-mounted or suspended. The cabinet
has no rigging points and is not suitable for rigging. Never attempt
to suspend the SRM1850 by its handles.

Physical Properties (packaged product)

Height 24.8 in / 630 mm

Depth 29.6 in / 752 mm

Width 28.0 in / 711 mm

Weight 74 lb / 33.6 kg

Physical Properties (product)

Height 22.5 in / 572 mm

Depth 23.9 in / 608 mm

Width 22.2 in / 565 mm

Weight 64 lb / 29 kg

Options

SRM1850 Subwoofer Cover P/N 2036809-24

SPM200 Loudspeaker Pole Mount P/N 2035170-01

Ordering Information

SRM1850 1600W 18" Powered Subwoofer, US

SRM1850 1600W 18" Powered Subwoofer, EU

SRM1850 1600W 18" Powered Subwoofer, AU

SRM1850 1600W 18" Powered Subwoofer, CN

SRM1850 1600W 18" Powered Subwoofer, BZ (120V)

SRM1850 1600W 18" Powered Subwoofer, BZ (230V)

P/N 2035116-00

P/N 2035116-01

P/N 2035116-04

P/N 2035116-05

P/N 2035116-06

P/N 2035116-16

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