User manual
www.merging.com/horus Page 4 - 9
Horus Release Notes
Sharp roll-off filter: Offers a flat frequency response up to 22kHz, within
0.2dB, which has the tradeoff of 36 samples latency. This mode was and still
is the default one.
Slow roll-off filter: Offers a low latency of 9 samples, with the tradeoff of a
gentle frequency response attenuation starting around 16kHz and reaching -
2.5dB at 22kHz
Fixed in Firmware version 22777:
Improvement: Page advanced: renamed System
Improvement: PTP lock improvements when multiple Horus are connected to a Switch
Improvement: Horus DSD headroom set to +6dB (details in Horus User Manual)
Improvement: The Mic/Line gain range has been increased from +0dB/+60dB to +0dB/+66dB
Improvement: Page Setup updates:
Cooling mode and Terminations have been moved to System Page
Button Advanced -> renamed System
Button System Info -> renamed Info
Fixed in Firmware version 22527:
Improvement: Screensaver Dark option
Improvement: Horus Dim display option now applied to Horus Power Led
Improvement: Phantom Power Safety feature
If a MAJOR (by MAJOR, we mean that the threshold of short-circuit detection
requires at least 10 Preamp inputs to be shorted simultaneously) 48V
Phantom Power Supply short circuit is detected, 48V is forced off on all A/D
channels. An error message will be displayed
Improvement: Horus RAVENNA support for different latency modes (samples)
Ultra Low (16 smp)
Extra low (32 smp)
(48smp) for AES67 support
Low (64 smp)
Fixed. AD module small clicks in gain adjustment when Low Cut is enabled
Fixed. Timestamp of the first sample of a frame was not correct causing a problem with the
RAVENNA ASIO Driver
Fixed. Horus MTC stream was not correct on minute changes, causing Third Party DAW (e.g.
Live and Reaper) MTC chase to be inaccurate at each minute edge.
Fixed. Horus Meters “Hot” and “Alignment” setting not applied
Fixed. Potential “Application Failed” error at Horus launch or Ravenna reconnection
Fixed in Firmware version 21673:
For Horus DXD & DSD support in RAVENNA. The Pyramix users must upgrade to Pyramix v8.1
Improvement: AD8D clarified 4FS limitation
Improvement: Fixed digital wrap near fullscale in DSD64
Fixed in Firmware version 21289:
Fixed: RAVENNA ASIO, current sample rate report accuracy issue
Improvement: New AD8D module support (with Direct Outs)
Fixed: AD parameters accuracy with Pyramix Mixer and Web Access page
Fixed: Potential DA glitch at RAVENNA start up in DSD
Fixed: Potential glitch/mute in network configuration.
Fixed: Further reduced clicks on AD PreAmp gain adjustment
Fixed in Firmware version 20622:
Fixed: LTC output potential missing frame
Fixed: Remove Error messages (Fifo and Buffering)
Fixed: inaccurate power Supply error message when connected to secondary only
Fixed. Horus not working with certain Hirschipsmann switches (MAR1140) due to too severe
Ethernet preamble check
Fixed in Firmware version 20417:
Improvement: AD Premium Mic pre-amp DSD gain range of 0dB to +60dB
Improvement: Format page: DSD/DXD GUI clarification