2x4 HD vs Sub DSP
The Sub DSP matches the 2x4 HD on bit depth (24-bit), max sample rate (192 kHz), output voltage (2.5V RMS), and weight (0.5 kg (1 lbs)).
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Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The miniDSP 2x4 HD is a compact 2-input/4-output digital signal processor and USB audio interface for active loudspeaker crossovers, subwoofer integration, equalization, time alignment, and room-correction workflows. It uses a 400 MHz Analog Devices SHARC floating-point DSP and is configured from a Windows or macOS computer using miniDSP plug-ins. Sources can be connected through stereo RCA analog input, optical TOSLINK, or asynchronous USB Audio Class 2; processed audio is available from four RCA outputs and through multichannel USB audio return. Its DSP feature set (depending on the installed plug-in) includes parametric EQ, IIR crossovers, FIR filtering, delay, routing, polarity control, gain adjustment, four stored presets, and IR remote-learning functions. The manufacturer continues to list the 2x4 HD in its product/manual ecosystem, so it is not indicated as discontinued.
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
Components that show up alongside the 2x4 HD in real systems. A verdict means the pair has been checked for compatibility and headroom — open it to see how the two get along.
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The Sub DSP matches the 2x4 HD on bit depth (24-bit), max sample rate (192 kHz), output voltage (2.5V RMS), and weight (0.5 kg (1 lbs)).
The Flex's bit depth is 32-bit against the 2x4 HD's 24-bit, its height 41 mm against 27 mm, and its width 150 mm against 119 mm. Both share max sample rate (192 kHz).
Both turn up in the same documented systems.
The SPDIF iPurifier's weight is 0.029 kg (0 lbs) against the 2x4 HD's 0.5 kg (1 lbs) and its height 20 mm against 27 mm. Both share bit depth (24-bit) and max sample rate (192 kHz).
Both turn up in the same documented systems.
The AVM-30's output voltage is 2.0V RMS against the 2x4 HD's 2.5V RMS and its weight 12.7 kg (28 lbs) against 0.5 kg (1 lbs). Both share bit depth (24-bit) and max sample rate (192 kHz).
Both turn up in the same documented systems.
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