SR18S 18" Professional Powered Subwoofer 1600W

Product Features

A True Workhorse for Gigging Professionals

• 1600W Class-D amplifier is designed for ultra-reliable, consistent performance
• Custom high-efficiency transducer ensures maximum punch
• Increases efficiency of your full-range loudspeakers by taking care of the low end for the entire system
• Built-Like-A-Tank™ to conquer every gig while lightweight for easy loading
• Frequency response: 33Hz - 200Hz
• Max SPL: 133 dB

Custom Voicing Presets

• Flat – Natural balance between deep bass and overall output
• Deep – Emphasizes ultra-low frequencies. Great for dance, rap, and electronic music
• Punch – Prioritizes highest possible output level. Great for bands and rock music

Optimize for Your System

• Variable crossover frequency
• Polarity invert switch
• Defeatable front LED
• Stereo or mono-summing for single or dual subwoofer deployment
• Variable level control (-6dBU to +6dBU)

Transparent System Limiting and Protection

• Dedicated processing module monitors and protects the amplifier in real time
• Sound quality and tonal balance is maintained even under heavy limiting
• Input limiting keeps your source signal in check so if you’re sending audio that’s a bit too hot, the speaker will cool it down
• Universal Power Supply (100-240VAC) with Power Factor Correction for stable operation even with unstable AC power

Versatile I/O

• Stereo XLR inputs
• Stereo full-range XLR outputs
• Stereo high-pass XLR outputs

Versatile configuration options

• Integrated M20 threaded pole cup

Product Specifications

Acoustic Performance

• Frequency Response (–10 dB):
  • 33 Hz – 200 Hz [Deep HPM]
  • 35 Hz – 200 Hz [Flat HPM]
  • 38 Hz – 200 Hz [Punch HPM]
• Frequency Response (–3 dB):
  • 35 Hz – 160 Hz [Deep HPM]
  • 41 Hz – 160 Hz [Flat HPM]
  • 46 Hz – 160 Hz [Punch HPM]
• Maximum SPL Peak:  133 dB

Transducers

• Low Frequency:  18 in / 457 mm woofer with ferrite

Power Amplifiers

• System Power Amplification:  Rated Power 1600 watts peak
• Low Frequency Power Amplifier:
• Rated Power:  1600 watts peak
• Rated THD:  <1%
• Cooling:  Convection
• Design:  Class D

System Processing

• Phase:  Normal / Invert
• High Pass Mode:  SR Flat, SR Deep, SR Punch, Variable

Input / Output

• Input Type:  2x Female XLR Balanced Differential (Stereo Left / Right)
• Input Impedance:  20 kΩ Balanced, 10 kΩ Unbalanced
• Full Range Outputs:  2x Male XLR Balanced (Parallel with Inputs – Mono)
• Full Range Impedance:  300 Ω Balanced
• High Pass Outputs:  2x Male XLR Balanced
• High Pass Impedance:  300 Ω Balanced
• Main Level Control:  Rotating Knob

Line Input Power

• Detachable line cord:  ~100 – 240 VAC, 50 – 60 Hz, 110W
• AC Connector:  3-Pin IEC 250 VAC, 10 A male
• Power Supply Type:  Switchmode

Safety Features

• Input Protection:  Peak and RMS limiting, power supply and amplifier thermal protection
• Display LEDs:  Defeatable front power

Construction Features

• Basic Design:  Rectangular
• Enclosure Material:  15mm poplar plywood
• Enclosure Finish:  Black Polyurethane
• Grille Material:  11 gauge ASTM A36 Steel
• Grille Finish:  Powder-coated black
• Handles:  One on each side
• Display LEDs:
  • Front:  Power ON
  • Rear:  High Pass Mode, Sig / Clip
• Operating Temperature:  0 – 40 °C, 32 – 104 °F

Mounting Methods

• SR18S subwoofers are designed to sit on the floor or stage.
• They are NOT designed to be pole-mounted or suspended.
• The cabinet has no rigging points and is not suitable for rigging.
• Never attempt to suspend an SR18S subwoofer by its handles.

Physical & Dimensions

• Height:  23.3 in / 592 mm
• Width:  23.0 in / 584 mm
• Depth:  27.0 in / 686 mm
• Weight:  74.5 lb / 33.8 kg