Specifications

The Horus has quickly become known as one of the most transparent and sonically impressive ADDA interfaces in the world today. Have a look below at some of the measurements of the system and its signal path to start to find out why this is.

Hapi Base Unit

Specifications
Case Material Powder Coated Steel
Front Panel Material Brushed Aluminum
Weight (excluding redundant PS) 4.5 kg / 10 lbs
Dimensions (1U rack mounting) 483 x 320 x 44 mm
Voltage (AC) 90V–260V, 47–63 Hz
Voltage (DC) 10-14V
Power Consumption (Max) < 30 Watts
Front Panel TFT size/resolution OLED (160x128 px)
Headphone Monitor Jacks
Max output Level (Unbalanced) Load = 300 Ohms +14.5 dBu
Output Impedance 75 Ω
Dynamic Range (A-weighted, typ) 112 dB
THD+N (1 kHz) @ -2 dBFS < -100 dB (0.001 %)
Gain Range (software controlled) -8 dB to +12 dB
Gain Step/Precision 1dB / ±0.05 dB
Connectors
"Sync" Cable (LTC/Video Ref/MIDI) D-Sub 15Pin
LTC In & Out (via “Sync” Cable) Balanced XLR
Video Reference In (via “Sync” Cable) BNC
MTC (I/O via “Sync” Cable) 5-Pin DIN
Word Clock Input (Switchable 75 Ω Termination) BNC, 0.5Vp-p min
Word Clock Output (Zout = 35 Ω) BNC, 5Vp-p
AES-EBU type / pinout DB-25 female, AES59/Tascam Digital
ADAT / SPDIF Optical Toslink
Heaphone Jack 1&2 6.3 mm(1/4”)/3.5mm
RAVENNA Primary / Secondary (GbE) RJ45

Horus Base Unit

Specifications
Case Material Powder Coated Steel
Front Panel Material Brushed Aluminum
Weight (excluding redundant PS) 6.5 kg/ 14.4 lbs
Dimensions (2U rack mounting) 483 x 320 x 89 mm
Voltage (AC) 90V–260V, 47–63 Hz
Power Consumption (Max) < 60 Watts
Front Panel TFT size/resolution 4.3” / 480 x 272 pixels
Headphone Monitor Jacks
Max output Level (Unbalanced) Load = 300 Ohms +15 dBu
Output Impedance 75 Ω
Dynamic Range (A-weighted, typ) 109 dB
THD+N (1 kHz) @ -2 dBFS < -100 dB (0.001 %)
Gain Range (software controlled) -60 dB to +12 dB
Gain Step/Precision 1dB / ±0.05 dB
Connectors
“Sync” Cable (LTC/Video Ref) D-Sub 15Pin
LTC In & Out (via “Sync” Cable) Balanced XLR
Video Reference In (via “Sync” Cable) BNC
Word Clock Input (Switchable 75 Ω Termination) BNC, 0.5Vp-p min
Word Clock Output (Zout = 35 Ω) BNC, 5Vp-p
AES Connector pinout (DB-25 female) AES59/Tascam Digital
MADI types (Coaxial / Optical) BNC / SC
Heaphone Jack 1&2 6.3 mm(1/4”)/3.5mm
RAVENNA Primary / Secondary (GbE) RJ45

AKD8D / AKD8DP Option Card

Mic Pre-Amp + ADC
Mic Pre Max Input (Pad On / Pad Off) +24 dBu / +13 dBu
Input Impedance (Differential, Software Switchable Per Channel) 1.9 kΩ / 10 kΩ
Input Impedance with +48V ON (Diff., Soft. Switchable Per Channel) 1.9 kΩ / 10 kΩ
Dynamic Range (A-weighted, typ.) , ref +10 dBu 123.5 dB
Gain Range (software controlled) 0 dB to +66 dB
Gain Step/Precision 0.5 dB / ±0.2 dB
THD+N Pre + A/D (20 Hz-20 kHz) @ -2 dBFS (Standard/Premium) < -110dB (0.00031%)/-111dB (0.00028%)
Interchannel Crosstalk @ 1kHz, typ. < -125 dB
EIN @ >40 dB Gain (150O Source Impedance, A-weighted, typ.) < -128 dBu
Common Mode Rejection Rate (20 Hz – 20 kHz) > 60 dB (up to 0 dBFS)
Phantom Power (Software Switchable Per Channel) +48V
Phase Reverse (Software Switchable Per Channel) YES
Low Cut filter (Software Switchable Per Channel) -12 dB/octave, 80 Hz
Line Input
Max Line Input for 0 dBFS +24 dBu
Input Impedance (Differential) 10 kΩ
Dynamic Range (A-weighted, typ), ref +24 dBu 124 dB
THD+N Line+A/D (20 Hz - 20 kHz) @ -10 dBFS < -110dB (0.00031%)/-111dB (0.00028%)
Interchannel Crosstalk @ 1kHz @ fullscale < -130 dB
Sensitivity Range for 0 dBFS (software controlled) -42 dBu to +24 dBu
Gain Step/Precision 0.5 dB / ±0.2 dB
Common Mode Rejection Rate (20 Hz – 20 kHz) > 60 dB / > 65dB (both up to 0 dBFS)
Connector Pinout DB-25 / AES59 (Tascam Ana.)
AKD8D/AKD8DP Mic-Pre Analog Section
Frequency response +0/-0.5 dB, Line 2 Hz - > 200 kHz
Frequency response +0/-2.0 dB, Line 1 Hz - > 200 kHz
Frequency response +0/-0.5 dB, Mic, at G=40dB 2 Hz - 65 kHz
Frequency response +0/-2.0 dB, Mic, at G=40dB 1 Hz - 160 kHz
THD+N (1 kHz), Line/Mic at G=0dB < -115 dB (0.00018 %)
THD+N (20 Hz-20 kHz) , Line/Mic at G=0dB < -112 dB (0.00025 %)
Interchannel Crosstalk @ 1kHz, typ. -140dB
5° low-end in-channel Ø deviation pt: Line 9 Hz
5° low-end in-channel Ø deviation pt: Mic 9 Hz
Interchannel phase 10 Hz - 100 kHz < ±0.1°
AKD8D/AKD8DP Analogue Direct Output Section
Frequency response +0/-0.5dB @ Gain 40 dB 2 Hz – 65kHz
Max Direct Output Level, typ +24 dBu / +13 dBu
Direct Output Impedance (Differential) > 100 Ω
Dynamic Range (flat 20 Hz-20 kHz, typ.) 140 dB
THD+N (1 kHz) @ +10dBu < -120dB (0.0001 %)
Direct Output Connector Pinout DB-25 / AES59 (Tascam Ana.)

AD8D / AD8DP Option Card

Mic Pre-Amp + ADC
Mic Pre Max Input (Pad On / Pad Off) +24 dBu / +13 dBu
Input Impedance (Differential, Software Switchable Per Channel) 2 kΩ / 13.6 kΩ
Input Impedance with +48V ON (Diff., Soft. Switchable Per Channel) 1.7 kΩ / 6.8 kΩ
Dynamic Range (A-weighted, typ.) , ref +13 dBu 120.5 dB
Gain Range (software controlled) 0 dB to +66 dB
Gain Step/Precision 0.5 dB / ±0.2 dB
THD+N Pre + A/D (20 Hz-20 kHz) @ -2 dBFS (Standard/Premium) < -96dB (0.0016 %) / -100 dB (0.001 %)
Interchannel Crosstalk @ 1kHz, typ. <-125 dB
EIN @ >40 dB Gain (150Ω Source Impedance, A-weighted, typ) < -128 dBu
Common Mode Rejection Rate @ 1kHz, typ. > 60 dB (up to 0 dBFS)
Phantom Power (Software Switchable Per Channel) +48V
Phase Reverse (Software Switchable Per Channel) YES
Low Cut filter (Software Switchable Per Channel) -12 dB/octave, 80 Hz
Line Input
Max Line Input for 0 dBFS +24 dBu
Input Impedance (Differential) 13.6 kΩ
Dynamic Range (A-weighted, typ), ref +24 dBu 121 dB
THD+N Line+A/D (20 Hz-20 kHz) @ -12 dBFS, typ. < -100 dB (0.001%)
Interchannel Crosstalk @ 1kHz, typ. < -120 dB
Sensitivity Range for 0 dBFS (software controlled) -42 dBu to +24 dBu
Gain Step/Precision 0.5 dB / ±0.2 dB
Common Mode Rejection Rate (20 Hz – 20 kHz) > 60 dB (up to 0 dBFS)
Input Connector Pinout (DB-25 female) DB-25 / AES59 (Tascam Ana.)
AD8D/AD8DP Mic-Pre Analog Section
Frequency response +0/-0.5 dB, Line 5 Hz - 75 kHz
Frequency response +0/-2.0 dB, Line 2.5 Hz - 150 kHz
Frequency response +0/-0.5 dB, Mic 10 Hz - 100 kHz
Frequency response +0/-2.0 dB, Mic 5 Hz - 200 kHz
THD+N (1 kHz), Line/Mic at G=0dB <-115 dB (0.00018 %)
THD+N (20 Hz-20 kHz) , Line/Mic at G=0dB <-112 dB (0.00025 %)
Interchannel Crosstalk @ 1kHz, typ. -135dB
5° low-end in-channel Ø deviation pt: Line 13 Hz
5° low-end in-channel Ø deviation pt: Mic 35 Hz
Interchannel phase 10 Hz - 100 kHz < ±0.1°
AD8D/AD8DP Analogue Direct Output Section
Frequency response +0/-0.3dB @ Gain 40 dB 10 Hz - 50 kHz
Max Direct Output Level, typ +24 dBu / +13 dBu
Direct Output Impedance (Differential) < 100 Ω
Dynamic Range (A-weighted, typ) 133 dB
THD+N (1 kHz) @ +10dBu < -120dB (0.0001 %)
Direct Output Connector Pinout DB-25 / AES59 (Tascam Ana.)

ADA8 Option Card

Mic Pre-Amp + ADC Section
Mic Pre Max Input (Pad On / Pad Off) +24 dBu / +13 dBu
Input Impedance (Differential, Software Switchable Per Channel) 2 kΩ / 6.8 kΩ
Frequency response +0/-0.3dB @ fs = 48 kHz 10 Hz – 22 kHz
Frequency response +0/-0.3dB @ fs = 96 kHz 10 Hz – 44 kHz
Frequency response +0/-0.3dB @ fs = 192 kHz 10 Hz – 85 kHz
Dynamic Range (A-weighted, typ.), ref +13 dBu 119.5 dB
Gain Range (software controlled) 0 dB to +66 dB
Gain Step/Precision 0.5 dB / ±0.2 dB
THD+N Pre + A/D (20 Hz - 20 kHz) @ -2 dBFS < -102 dB (0.0008 %)
Interchannel Crosstalk @ 1kHz < -125 dB
EIN @ >40 dB Gain (150Ω Source Impedance, A-weighted) < -128 dBu
Common Mode Rejection Rate (20 Hz – 20 kHz) > 60 dB (up to 0 dBFS)
Phantom Power (Software Switchable Per Channel) +48V
Phase Reverse (Software Switchable Per Channel) YES
Low Cut filter (Software Switchable Per Channel) -12 dB/octave, 80 Hz
Line Input
Max Line Input for 0 dBFS +24 dBu
Input Impedance (Differential) 13.6 kΩ
Dynamic Range (A-weighted, typ), ref +24 dBu 120 dB
THD+N Line+A/D (20 Hz - 20 kHz) @ -2 dBFS < -102 dB (0.0008%)
Interchannel Crosstalk @ 1kHz, typ. -125 dB
Sensitivity Range for 0 dBFS (software controlled) -42 dBu to +24 dBu
Gain Step/Precision 0.5 dB / ±0.2 dB
Common Mode Rejection Rate (20 Hz – 20 kHz) > 60 dB (up to 0 dBFS)
Connector Pinout (DB-25 female) DB-25 / AES59 (Tascam Ana.)
Line Output Section
Max Output level software switchable for 0 dBFS +24 dBu / +18 dBu +0/-0.5 dB
Frequency response +0/-0.3dB @ fs = 48 kHz 6 Hz – 22 kHz
Frequency response +0/-3dB @ fs = 96 kHz 6 Hz – 44 kHz
Frequency response +0/-3dB @ fs = 192 kHz 6 Hz – 88 kHz
Output Impedance (Differential) < 100 Ω
Dynamic Range (A-weighted, typ.) 123 dB
THD+N (1 kHz) @ 0dBFS < -108 dB (0.0004 %)
Interchannel Crosstalk @ 1kHz < -135 dB
Connector Pinout DB-25 / AES59 (Tascam Ana.)
Latencies
Input latency at 44.1/48kHz 16 samples
Input latency at 88.2/96kHz 16 samples
Input latency at 176.4/192kHz 13 samples
Output latency at 44.1/48kHz 9* samples
Output latency at 88.2/96kHz 9* samples
Output latency at 176.4/192kHz 9* samples
 
* Filter setting
- Slow Roll Off Filter option = 9 Samples
- Sharp Roll Off Filter option = 38 Samples

DA8/DA8P Option Card

Specifications
Max Line Output @ 0 dBFS (settings on +24 dBu) +25 dBu +0/-0.5 dB
Max Line Output @ 0 dBFS (settings on +18 dBu) +19 dBu +0/-0.5 dB
Frequency response +0/-0.3dB @ fs = 48KHz 6 Hz – 20 kHz
Frequency response +0/-0.3dB @ fs = 2.8224 MHz (DSD) NA / 6 Hz – 20 kHz
Frequency response +0/-3.0dB @ fs = 2.8224 MHz (DSD) NA / 2 Hz – 50 kHz
Line Output Impedance (Differential) 90 Ω
Dynamic Range (flat 20 Hz-20 kHz) (IOM-H-DA8) 122 dB
Dynamic Range (flat 20 Hz-20 kHz) (IOM-H-DA8P) 124.5 dB
Dynamic Range (A-weighted, typ) 127 dB
THD+N D/A (1 kHz) @ 0 dBFS (IOM-H-DA8) < -113dB (0.00022 %)
THD+N D/A (1 kHz) @ 0 dBFS (IOM-H-DA8P) < -116dB (0.00016 %)
Interchannel Crosstalk @ 1kHz, typ. -140 dB
Interchannel Crosstalk @ 20Hz - 20 KHz < -115 dB
Output latency (Slow Roll Off) 9 samples
Output latency (Sharp Roll Off) 35 samples
Gain Step 0.5 dB
Connector Pinout (DB-25 female) AES59/Tascam Analog