Acurus ACT 4 20-Channel HD Audio Pre-Amp Processor

  • Acurus ACT 4 20-Channel HD  Audio Pre-Amp Processor
  • Acurus ACT 4 20-Channel HD  Audio Pre-Amp Processor
  • Acurus ACT 4 20-Channel HD  Audio Pre-Amp Processor
  • Acurus ACT 4 20-Channel HD  Audio Pre-Amp Processor
  • Acurus ACT 4 20-Channel HD  Audio Pre-Amp Processor

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:
• 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


front-panel display:  7” LCD touch-panel

serial: 2 x DB9, 2-way control, 1 x USBA programming port

ethernet: 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)

finish: black satin anodization, laser-etched logo, white chassis 


Acurus ACT 4 20-Channel HD Audio Pre-Amp Processor

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.


• 20 -channel processor

• 3rd party controllable

•decodes Dolby Atmos®& DTS:X™

• 5 -year warranty

• HDMI 2.0b (2.1-ready)

• upgradeable


frequency response: 20 - 20kHz ± 0.1dB

SNR > 110dB (A-wt)

THD < 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: 11.1

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