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Mackie SRM1850 Subwoofer

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Mackie SRM1850 Subwoofer
Mackie SRM1850 Subwoofer
Mackie SRM1850 Subwoofer
Save £240.00 
RRP £999.00
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Product Description

SRM1850 is the first subwoofer model in the latest series of SRM speakers from industry experts Mackie. The SRM1801 is capable of serving up huge quantities of chest-pounding bass and is the perfect addition to full-range powered speakers such as the SRM550 and 650 two-way models. SRM1850 is ideal for mobile DJs, bands and other mobile performers who want to add significant amounts of bottom end to their portable PA system. SRM1850 boasts a total system power of 1600w (an incredible 800w RMS) which is more than nearly anything in it's class.

The punch from the Mackie SRM1850 comes courtesy if a single, high-power 18" woofer which is custom designed for the 850 and further aided by front-firing bass ports which improve bass response and reduce unwanted resonance. This high-output driver is matched to a custom class AB amplifier which produces 800w RMS continuous power and offers superb efficiency across all output levels.

Mackie SRM1850s feature and all-wood, braced construction which Mackie claim is "built like a tank". This tough, robust construction makes the SRM1850 perfect for a life on-the-road and can withstand the rigours of mobile use. To ensure that no power is wasted, clever onboard audio processing is uses including an integrated digital crossover which can be adjusted or used on one of the pre-sets designed for combining the 1850 with other SRM speakers. On the off-chance that you push the SRM1850 a little too hard, it has Mackie's 'Smart Protect' protection system in place to prevent permanent damage to the amplifier or driver components.

Connectivity on the SRM-1850 is via stereo XLR for both input and output. The 1850 features both full-range and high-pass thru puts for use with additional subs or with full-range top cabs. An integrated top-hat it fitted to the top of the cabinet allowing a speaker pole and, additional, top cabinet to be quickly and easily fitted, a perfect solution for mobile PA applications.


  • 1600W of intense power paired with a custom high-output 18'' woofer delivers chest-pounding low end performance
  • "Built-Like-A-Tank" all-wood, internally-braced cabinet delivers unmatched 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 Mackie SRM loudspeakers
  • Smart ProtectTM DSP kicks in to protect your investment when things get pushed a little too hard
  • Built-in cup for easily pole-mounting full-range loudspeakers

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


  • 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: 20k Ohms balanced, 10k Ohms unbalanced
  • Full Range Outputs: Male XLR balanced (parallel with inputs - mono)
  • High Pass Outputs: Male XLR balanced

Line Input Power

  • 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

Safety Features

  • Input Protection: Peak and RMS limiting, power supply and amplifier thermal protection
  • Display LEDs: Defeatable front power ON, 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 : Floor or stage (No rigging or pole mounting)

Physical Properties

  • Height: 22.5 in / 572 mm
  • Depth: 23.9 in / 608 mm
  • Width: 22.2 in / 565 mm
  • Weight: 64 lb / 29 kg
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