Citronic MONOLITH II Active Speaker System

SKU: 171.231

£385.05 £462.06 incl. VAT

450w + 150w powered column array speaker system

In stock



Citronic MONOLITH II active speaker system with sub and columns

High quality sound reinforcement system with active 12″ subwoofer and 6 x 3″ satellite column speaker, powered by a high efficiency class-D bi-amplifier. Cabinets are made from 15mm MDF and coated in a hard-wearing textured coating with integral carrying handle for the sub cabinet. The column links to the sub via a Speakon® connector and mounts on top with the supplied telescopic pole. Clean and understated looks provide a minimal profile whilst delivering powerful and high quality sound projection for performers, DJs and conference.

See the ‘User Manuals’ tab on the left of this page – as manufacturers are making instruction sheets and user manuals available for download only and your purchase may not include a printed version.

  • Supplied as a single sub and column array speaker system
  • Class-D amplifier with adjustable active crossover
  • Compact format with high power output
  • Complete set supplied with mounting pole and connection lead
  • Power supply 230Vac, 50Hz (IEC)
  • Fuse: T6.3AL, 250V
  • Inputs: XLR, L+R RCA
  • Outputs: Speakon to satellite, XLR signal thru
  • Frequency response : -10dB:
    Sub: 40-120Hz
    Column 120Hz – 20kHz
  • Max. SPL @ 1W/1m:
    Sub: 120dB
    Column: 118dB
  • Sensitivity @ 1W/1m:
    Sub: 94dB
    Column: 90dB
  • Drivers:
    Sub: 300mmØ (12″)
    Column: 6 x 75mmØ (3″) + 2 x 50mmØ (2″)
  • Voice coil:
    Sub: 65mmØ
    Column: 6 x 25mmØ + 2 x 19mmØ
  • Impedance:
    Sub: 4 Ohms
    Column: 4 Ohms
  • Amplifier : construction: Class D bi-amp
  • Amplifier : output power : rms:
    Sub: 450W
    Column output: 150W
  • THD: 0.1% @ 1kHz (1W@4 Ohms)
  • Dimensions:
    Sub cabinet: 510 x 450 x 345mm
    Column: 715 x 140 x 108
  • Weight:
    Sub cabinet: 18.72kg
    Column: 5.15kg
  • Package dimensions: 360 x 1200 x 480mm
  • Package weight: 29.00kg



A brand with history, Citronic is still going strong after 40 years. It has evolved over the years to become a leader in the professional audio market and is now the ideal choice for installers, hire companies and mobile DJs. The comprehensive range offers reliable and durable products from loudspeakers through to DJ headphones. As a DJ industry pioneer, Citronic developed many of the features that have since become industry standards. The Citronic philosophy has always been to push the barriers of quality and innovation, yet maintain a reputation for “out of the box” reliability with fully featured and affordable products. Over the last 10 years Citronic has taken strides to grow from a humble 30 products to over 200. This versatile range now covers simple home DJ plug & play set-ups and fully featured outboard equipment, right through to high-powered installations. This allows Citronic to service many sectors of the entertainment industry including pubs, nightclubs, hotels and studios, as well as supplying distinctive products DJs.

Additional information

Weight29 kg
Output (RMS)


Speaker Size



3.5mm Jack, 3 Pin XLR (Female), 3 Pin XLR (Male), 6.3mm Jack, RCA Phono, SpeakON (SPK)





User Manuals


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