Acurus ACT 4 20-channel Immersive Audio Pre-amp Processor


Made in USA


Option: Black
Sale priceA$24,599.00
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5 Years Warranty

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the center of your entertainment world

The ACT 4 represents a revolution in 3D-audio home cinema processors. Designed to be the heart of a modern UHD home theater, the ACT 4 combines ultimate audio performance, control flexibility, and the absolute latest immersive sound technologies. With 20 channels of immersive audio the ACT 4 meshes the celebrated engineering of Acurus with the power of advanced cinema technology--all in perfect harmony.

The ACT 4 also sets a new standard for ease of installation and use. An intuitive, full-color, touch-sensitive front panel display simplifies setup and operation. Controllable via 3rd-party systems, the ACT 4 also offers web setup and control which enables operation of an ACT 4 theater from anywhere within the home via mobile device. The ACT 4 has both balanced and unbalanced outputs which allow for flexibility in any application.

The ACT 4 supports Acurus' own room correction technology, ASPEQT, a four-microphone acoustic optimization system which is incredibly simple to use, yet powerful enough for the most challenging cinema environments. An ACT 4 cinema tuned by ASPEQT defines the pinnacle in home entertainment.

An ACT 4 processor features 15 main outputs and 1 subwoofer output for native decoding and rendering of immersive audio streams with 4 additional subwoofer outputs for larger speaker layouts such as 9.5.6 or 9.7.4.

ACT 4 immersive audio processor benefits:

  • Support for fully decoding and upmixing to the largest speaker layouts.

  • Simplified setup via front panel or mobile device saves installation and setup time.

  • Intelligent Auto Mode optimally fills all loudspeakers for any source format.

  • Extensive layout support for handling a wide variety of listening situations.

  • Proprietary system architecture delivers state-of-the-art immersive technology with an absolute devotion to sound purity and expression.

ACT 4 highlights:

  • 20-channel Processor

  • HDMI 2.0b (2.1 ready)

  • natively decodes Dolby Atmos and DTS:X

  • mobile control app

  • 3rd party control drivers: Control4, Crestron, Elan,, RTI, Savant, URC

  • fully upgradeable

  • made in the USA

  • 5-year warranty


  • residential home cinema

  • multi-purpose

  • light commercial


  • aux DB9 to XLR cable

  • optional rack kit



frequency response
  • 20 – 20kHZ ± 0.1 dB
  • >110dB (A-wt)
  • < 0.02% (20 – 20kHz)
max output
  • 3.5V RCA, 7V XLR
power consumption
  • 70W (max), 1W (standby)

decoding and post processing

Dolby Atmos native decoding
  • Dolby Atmos up to 15.1
DTS:X native decoding
post processing modes
  • Dolby Surround Upmixer, Neural:X upmixerauto, direct, party, night, stereo, DTS, Dolby
loudspeaker adjust (I)
  • delay, polarity, large/small, crossover
loudspeaker adjust (II)
  • PEQ
loudspeaker adjust (III)
  • ASPEQT Room Correction System


stereo analog inputs
  • 3 x gold-plated RCA L/R unbalanced, 1 x XLR L/R balanced
stereo phono input
  • 1 x gold-plated RCA L/R
digital inputs
  • 3 x coax RCA, 3 x optical
multi-channel analog inputs
  • 1 x gold-plated RCA in 7.1 configuration
multi-channel analog outputs
  • 18 x gold-plated RCA, 20 x balanced (16 x XLR + 4 x AUX DB9)
digital video inputs
  • 8 x HDMI 2.0b (2.1 ready), 4k pass-thru
digital video outputs
  • 1 x HDMI 2.0 b (2.1 ready), 1x HDMI 2.0b


front-panel display
  • 7” LCD touch-panel
  • 2 x DB9, 2-way control, 1 x USBA programming port
  • 1 x ethernet, web interface + 2-way IP UDP control
12v trigger and IR
  • 1 x 3.5mm IN, 4 x 3.5mm OUT, IR remote
charging port
  • 2 x USB 5V, 2A


product dimensions
  • 7” x 17” x 15” (17.8cm x 43.2cm x 38.1cm)
product weight
  • 25 lbs(11.3 kg)
carton dimensions
  • 12” x 22” x 20” (25cm x 56cm x 51cm)
carton weight
  • 30 lbs(13.6 kg)
  • black satin anodization, laser-etched logo, white chassis
accessories and documentation
  • rack ear kit (ARM-4)
  • owner’s manual
  • DB-9 to XLR x4 (CAB-20) cable
  • ethernet and RS232 protocols
  • 2D/3D CAD files
  • 3rdparty control drivers


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