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Cloud CXA6


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Product Overview

The Cloud CXA6 is a versatile and innovative
multi channel amplifier.

It exhibits low levels of noise and distortion, and utilises the highest quality components, ensuring outstanding sound quality and rugged durability.

Plug in VCA modules are available for applications where remote level control is required. Line distribution systems of both 70V and 100V are also catered for with the optional high performance transformer modules.



  • General purpose, high quality 6-channel power amplifier
  • 6 x 120 W into 4 ohms, 6 x 85 W into 8 ohms
  • Thermal protection
  • VI limiting
  • DC offset protection
  • Switch-on delay (for speaker protection during power
    rail stabilisation)
  • Pairs of channels may be operated in Bridge Mode
  • Per-channel, front-panel LEDs for signal presence, peak level and protection status
  • Balanced line level inputs with gain trim
  • Rear panel switches to configure for multichannel,
    stereo or mono operation
  • Optional externally-mountable 100 V/70 V transformers (per-channel)
  • Optional per-channel remote volume control
    (needs 2-channel VCA card, see block diagram)
  • Optional 2-channel VCA cards
  • A range of optional per-channel EQ cards, to match various popular loudspeakers
  • 2U 19” rackmounting unit
  • Variable speed forced-air cooling
  • Five year warranty


  • RL-1 & RL-1A Remote Music Level Control
  • VCA2 2 Channel VCA Card
  • CXL-100T 100W Toroidal Transformer
  • CXL-800 Rack Mounting Housing
  • BOSE Loudspeaker EQ Card
  • EQ Cards for Amina AIWX & LFiT Loudspeakers
  • RL-1B Remote Volume Level Control Plate in Black
  • RL-1W Remote Volume Level Control Plate in White
  • RL-1MW Remote Volume Level Media Control Plate in White


Full specifications are available under the Downloads tab above


  • Output Power (Normal Mode): 120 W/ch into 4 ohms (all chs driven)
  • Output Power (Bridge Mode): 240 W nominal into 8 ohms
  • Frequency Response: 10 Hz – 20 kHz, ±1 dB
  • High Pass Filter: -3 dB @ 65 Hz, selectable per-channel
  • Distortion: THD: <0.005% typical, 1 kHz, 100 W into 4 ohms, one channel driven, 22 Hz – 22 kHz
  • Noise: <-90 dB rel. rated output, unweighted, 22 Hz – 22 kHz
  • VCA module THD: <0.03%, 1 kHz, 22 Hz – 80 kHz



  • Type & connectors: Electronically balanced, XLR3F
  • Sensitivity: 0 dBu (0.775 Vrms)
  • Input Impedance: 10 kohms (balanced)



  • Output Connectors: Binding posts
  • Power input: 230 V ±5% (115 V ±5% available)
  • Mains protection: Replaceable fuse, T3.15A H (230 V)
  • Amplifier Protection: VI limiting, DC offset, Thermal, Switch-on Delay
  • Status Indicators: Signal present, Peak & Protection
  • Cooling: Force cooled, two-speed DC fan
  • Dimensions (W x H x D): 482.6 x 88 (2U) x 325 mm
  • Weight: 10.0 kg

Product Downloads

  • CXA6 Data Sheet PDF 0.7 MB
  • CXA6 Manual PDF 0.2 MB


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*Prices are in AUD, include GST and are subject to change. Please call National Audio for pricing and availability on the CXA6.