Contrabass Series CR 21s

Engineered for Impact: Experience Bass Like Never Before!

High-performance 21" reflex-loaded subwoofer delivering punchy low frequencies with 1800W power. Ideal for live performances and clubs, it combines precise bass dynamics with a rugged, space-efficient design.

Key Features

  • Compact, high performance
  • Reflex-loaded, 21” sub-woofer using customized European pedigree driver
  • Easy and fast to install
  • Can retrofit in an existing venue
  • Top hat

Applications

  • Live performances
  • Nightclubs and bars
  • Bars and lounges

Technical Specification

MODEL CR 21s
Type Compact, Reflex loaded Sub-woofer system
Frequency Response (1) 39 Hz-280 Hz ± 3 dB
Drivers LF: 21" (525 mm) with a 4" (100 mm) voice coil
Recommended Amp. Upto 2400 Watts
Sensitivity (1 W / 1 m) 98 dB
SPL Peak 141 dB
SPL program 135 dB
SPL Nominal 129 dB
Nominal Impedance 8 Ohms
Dispersion Omni
Crossover 90 Hz active/ passive low pass filter
Enclosure Baltic birch ply
Finish Textured black paint
Protective Grill Perforated steel
Connectors 2 x Neutrik NL4
Pin Connections Input ± 1, Link through: ± 2
Standard Colors Black / White
Fittings Rubber feet
Horn NA
Rated Continuous Power AES 1800 Watts
Rated Maximum Power/Program Power 3600 Watts
Peak Power 7200 Watts
Accessories NA
Dimensions - Product (in mm) (W) 772 x (H) 630 x (D) 655
Dimensions - Including packing (in mm) (W) 800 x (H) 645 x (D) 710
Net weight (kgs) 57
Shipping Weight (kgs) 61

About Series

The Contrabass Series products capture the bold and dynamic characteristics of the contrabass. Choose between a Reflex, Multiload, or a bandpass; the Contrabass Series has it all. The aim is to deliver deep, impactful bass that defines the lower frequency extension of the audio spectrum, making them ideal for both live sound and installation applications. Engineered to ensure minimum cabinet resonance, they disappear in a venue and are in different shapes and sizes that fit under a stairway, stand next to a column, or simply can be slipped under a stage without losing the high-impact performance. These subwoofers enhance low-frequency extension and overall audio presence, making them perfect for high-energy environments. These are ideally paired with the Cello and String Series mid-highs. Choose from our range of Contrabass and String series subwoofers to play, hear, and feel the music.