RCF NX S21-A active 21-inch subwoofer

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RCF NX S21-A active 21-inch subwoofer
Product no: KO-NXS21A Bax Music Warranty: This product comes with a 3-year warranty.

General

When you need to project deep basses over long distances, the NX S21-A is just the thing. A 21-inch woofer ensures a frequency range of 30 to 80 Hz, offering the ultimate deep bass. In combination with the NX satellite speakers, you can also be sure of getting the perfect balance.

The NX S21-A: 21 inches in an 18-inch package

RCF paid a lot of attention to dimensions when designing the NX S21-A - the more room something takes up, the more it costs, in terms of money, storage and transport. As such, this subwoofer has been designed in such a way that it's no larger than the average 18 version.

Digipro: the power behind the subwoofer

A large part of the performance is produced with thanks to Digipro. This subwoofer features a 1,000W Digipro amplified that effortlessly feeds the 21-inch woofer! And the sizeable 4.5-inch voice coil is a force to be reckoned with, as it produces an impressive 135 dB of sound pressure!  

Tips or comments about this product
  • Please note: array strips are for mounting subwoofer and line array modules, not for flying the subwoofer! 

Specifications

Product features

Speaker connections XLR / TRS combi input, out / link / thru
Mid driver/woofer diameter 21 inches
Weight per speaker 53 kg
Maximum SPL 130 dB - 139 dB
Maximum subwoofer frequency 80 Hz
Minimum frequency 30 - 34 Hz
RMS power in watts 750 - 1,499 W
Locking speaker connectors no

Weight and dimensions including packaging

Weight (incl. packaging) 55,0 kg
Dimensions (incl. packaging) Not yet known

Product specifications

  • compact 21-inch subwoofer from the NX series 
  • 21-inch woofer with 4.5-inch neodymium voice coil 
  • powerful 1,000W Digipro amp module
  • maximum SPL: 135 dB
  • frequency range: 30 to 80 Hz
  • inputs: stereo combo jack/XLR, unbalanced/balanced
  • outputs: stereo XLR
  • input sensitivity: -2 dBu / +4 dBu
  • crossover frequency: 60 - 80 Hz 
  • protection: thermal, RMS
  • limiter: soft peak limiter
  • controls: volume, crossover, link frequency cut, phase (0/180) 
  • total power of amp module: 1000 W
  • cooling: forced convection cooling via cooling fins
  • power supply: powerCon in/out
  • material cabinet: birch plywood
  • hardware: array strips
  • handles: 4x (sides) 
  • stand adapter: 35 mm
  • colour: black
  • dimensions: 750 x 660 x 700 m
  • weight: 53.2 kg

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