ACT 4 vs Bryston SP3
The SP3's signal-to-noise is 100 dB against the ACT 4's 110 dB, its thd 0.006% against 0.020%, its output voltage 2.0V RMS against 3.5V RMS, and its weight 8.16 kg (18 lbs) against 13.6 kg (30 lbs).
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Estimated price (community-sourced)
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The Acurus ACT 4 is a revolutionary 3D-audio home cinema processor that serves as the heart of a modern UHD home theater system. It features 20 channels of immersive audio processing, combining Acurus' celebrated engineering with advanced cinema technology. The processor supports native decoding of Dolby Atmos and DTS:X, with extensive layout support for large speaker configurations including up to 9.5.6 or 9.7.4 setups. It offers both balanced (XLR) and unbalanced (RCA) outputs, HDMI 2.0b inputs and outputs (2.1 ready), and an intuitive full-color touch-sensitive front panel display for simplified setup and operation. The ACT 4 includes Acurus' ASPEQT room correction technology, a four-microphone acoustic optimization system that is easy to use yet powerful enough for challenging environments. Control is flexible via mobile app, web interface, and third-party systems such as Control4, Crestron, Elan, RTI, Savant, and URC. Additional features include intelligent auto mode for optimal speaker filling, fast decoding format switching, and a 5-year warranty. The unit is made in the USA and designed for both audiophiles and professional installers seeking state-of-the-art immersive sound purity and expression.
DAC capabilities and digital audio processing
Analog signal output specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The SP3's signal-to-noise is 100 dB against the ACT 4's 110 dB, its thd 0.006% against 0.020%, its output voltage 2.0V RMS against 3.5V RMS, and its weight 8.16 kg (18 lbs) against 13.6 kg (30 lbs).
The AVM-90's signal-to-noise is 115 dB against the ACT 4's 110 dB, its thd 0.100% against 0.020%, its output voltage 4.0V RMS against 3.5V RMS, and its weight 10.1 kg (22 lbs) against 13.6 kg (30 lbs).
The AV10's signal-to-noise is 105 dB against the ACT 4's 110 dB, its thd 0.005% against 0.020%, its output voltage 1.2V RMS against 3.5V RMS, and its weight 16.78 kg (37 lbs) against 13.6 kg (30 lbs).
The MX122's signal-to-noise is 96 dB against the ACT 4's 110 dB, its thd 0.005% against 0.020%, its output voltage 2.5V RMS against 3.5V RMS, and its weight 14 kg (31 lbs) against 13.6 kg (30 lbs).
McIntosh MX123
Marantz AV 20
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