The Orpheus Lab H Zero PS Opus II is a reference-level SACD player designed and manufactured in Switzerland. Part of the company’s Heritage Opus II range, it combines a precision D&M SACD mechanism with the high-accuracy Tempo clock module developed for Orpheus Lab’s Maestro Series. Its sophisticated true dual-mono digital-to-analogue conversion architecture employs eight synchronous current-output DACs per channel, arranged in a proprietary 8-4-4-1 topology. The DAC outputs are grouped in pairs during current-to-voltage conversion, creating four separate analogue signal paths that pass through four parallel Revival Filters before being recombined using precision 0.1% tolerance metal-film resistors. This elaborate architecture is engineered to minimise noise, preserve dynamic range and maintain exceptional phase accuracy.
The H Zero PS Opus II incorporates Orpheus Lab’s proprietary CRQL resistor-based analogue attenuation system, allowing output level adjustment from -16dB to 0dB in precise 0.1dB increments, with independent channel balancing and selectable phase inversion. Balanced XLR and unbalanced RCA outputs provide flexibility when partnering the player with high-performance preamplifiers, while a USB Type B input supports external PCM sources up to 32-bit/384kHz and DSD256. A substantial separate power supply supports the player’s precision digital and analogue circuitry, contributing to a combined weight of 52kg. Combining advanced conversion technology, meticulous analogue signal processing and substantial mechanical engineering, the H Zero PS Opus II provides a highly accomplished digital source for the most ambitious audio systems.
Key Features
Reference-level SACD and CD player
Designed and manufactured in Switzerland
Part of the Orpheus Lab Heritage Opus II range
Precision D&M SACD transport mechanism
Compatible with SACD, CD, CD-R and CD-RW discs
High-precision Tempo clock module developed for the Maestro Series
Quartz-based clock synchronisation
True dual-mono digital-to-analogue conversion architecture
Eight synchronous DACs per channel
Sixteen DACs across both stereo channels
Proprietary 8-4-4-1 DAC architecture
Current-mode digital-to-analogue conversion
DAC outputs grouped in pairs during current-to-voltage conversion
Four independent voltage groups per channel
Four parallel Revival Filters per channel
Eight parallel Revival Filter paths across both channels
Proprietary Revival Filter technology with particular emphasis on phase optimisation
Final analogue summing stage using precision metal-film resistors
Resistor tolerance of 0.1%
Proprietary CRQL analogue output attenuation
CRQL technology shared with the H Two 33BD Opus II preamplifier
Analogue output attenuation range from -16dB to 0dB
Precision output adjustment in 0.1dB increments
Independent left and right channel level balancing
Selectable output phase inversion: 0° or 180°
Balanced XLR stereo analogue outputs
Unbalanced RCA stereo analogue outputs
USB Type B digital audio input
USB PCM support up to 32-bit/384kHz
USB DSD support up to DSD256
Exceptionally low specified THD+N below 0.0003% at 1kHz
Channel crosstalk below -126dB
Published dynamic range exceeding 126dB
Low output impedance for effective preamplifier matching
Substantial separate power supply
Combined player and power supply weight of 52kg
Automatic muting during mains voltage interruption
Standby power consumption below 1W
The Orpheus Lab H Zero PS Opus II is a reference-level SACD player designed and manufactured in Switzerland. Part of the company’s Heritage Opus II range, it combines a precision D&M SACD mechanism with the high-accuracy Tempo clock module developed for Orpheus Lab’s Maestro Series. Its sophisticated true dual-mono digital-to-analogue conversion architecture employs eight synchronous current-output DACs per channel, arranged in a proprietary 8-4-4-1 topology. The DAC outputs are grouped in pairs during current-to-voltage conversion, creating four separate analogue signal paths that pass through four parallel Revival Filters before being recombined using precision 0.1% tolerance metal-film resistors. This elaborate architecture is engineered to minimise noise, preserve dynamic range and maintain exceptional phase accuracy.
The H Zero PS Opus II incorporates Orpheus Lab’s proprietary CRQL resistor-based analogue attenuation system, allowing output level adjustment from -16dB to 0dB in precise 0.1dB increments, with independent channel balancing and selectable phase inversion. Balanced XLR and unbalanced RCA outputs provide flexibility when partnering the player with high-performance preamplifiers, while a USB Type B input supports external PCM sources up to 32-bit/384kHz and DSD256. A substantial separate power supply supports the player’s precision digital and analogue circuitry, contributing to a combined weight of 52kg. Combining advanced conversion technology, meticulous analogue signal processing and substantial mechanical engineering, the H Zero PS Opus II provides a highly accomplished digital source for the most ambitious audio systems.
Key Features
Reference-level SACD and CD player
Designed and manufactured in Switzerland
Part of the Orpheus Lab Heritage Opus II range
Precision D&M SACD transport mechanism
Compatible with SACD, CD, CD-R and CD-RW discs
High-precision Tempo clock module developed for the Maestro Series
Quartz-based clock synchronisation
True dual-mono digital-to-analogue conversion architecture
Eight synchronous DACs per channel
Sixteen DACs across both stereo channels
Proprietary 8-4-4-1 DAC architecture
Current-mode digital-to-analogue conversion
DAC outputs grouped in pairs during current-to-voltage conversion
Four independent voltage groups per channel
Four parallel Revival Filters per channel
Eight parallel Revival Filter paths across both channels
Proprietary Revival Filter technology with particular emphasis on phase optimisation
Final analogue summing stage using precision metal-film resistors
Resistor tolerance of 0.1%
Proprietary CRQL analogue output attenuation
CRQL technology shared with the H Two 33BD Opus II preamplifier
Analogue output attenuation range from -16dB to 0dB
Precision output adjustment in 0.1dB increments
Independent left and right channel level balancing
Selectable output phase inversion: 0° or 180°
Balanced XLR stereo analogue outputs
Unbalanced RCA stereo analogue outputs
USB Type B digital audio input
USB PCM support up to 32-bit/384kHz
USB DSD support up to DSD256
Exceptionally low specified THD+N below 0.0003% at 1kHz
Channel crosstalk below -126dB
Published dynamic range exceeding 126dB
Low output impedance for effective preamplifier matching
Substantial separate power supply
Combined player and power supply weight of 52kg
Automatic muting during mains voltage interruption
Standby power consumption below 1W
