Technical Specifications

Mic preamps

Specification	Horizon 8P
Mic preamps	8 x Audient Console Preamps
Connection	Combi-jack
Input gain	0–75 dB
Phantom power	+48 V DC, 10 mA per channel
Pad	−10 dB
Variable HPF	20–250 Hz
ORBIT Variable Impedance Control — Low	220 Ω
ORBIT Variable Impedance Control — Medium	1200 Ω
ORBIT Variable Impedance Control — High	2800 Ω
Mic preamp maximum input level	+18 dBu
Mic preamp THD+N @ 0 dBu	−98 dB / 0.0011%
Mic preamp EIN	−129 dB A-weighted
Mic preamp frequency response	±0.5 dB, 10 Hz to 80 kHz
Mic preamp CMRR	>75 dB

Line input performance

Maximum input level	+28 dBu
THD+N @ +10 dBu	−98 dB / 0.0011%
Gain	−10 to +65 dB
Input impedance	10 kΩ

Instrument Inputs

Specification	Horizon 8P
Instrument Inputs	2 x JFET Instrument Inputs
Assigned channels	1–2

Instrument input performance

Maximum input level	+12 dBu
Gain	0–75 dB
THD+N @ 0 dBu	−75 dB / 0.018%
Frequency response	±0.5 dB, 10 Hz to 40 kHz
Input impedance	500 kΩ

Analogue line I/O

Specification	Horizon 8P
D-sub line inputs	8
D-sub line outputs	8
TRS line outputs	4
Dedicated Main monitor outputs	Channels 9–10
Additional TRS line outputs	Channels 11–12
Input reference level	+18 dB / +24 dB
Output reference level	+18 dB / +24 dB

Analogue performance

Measurement standard	AES-17
ADC maximum input level	+24 dBu = 0 dBFS
ADC THD+N @ −1 dBFS	−118 dB / 0.00012%
ADC dynamic range	127 dB A-weighted
ADC frequency response	±0.2 dB, 10 Hz to Fs/2 (Nyquist)
Line outputs — maximum output level	+24 dBu = 0 dBFS
Line outputs — THD+N @ −1 dBFS	−122 dB / 0.00008%
Line outputs — dynamic range	132 dB A-weighted

Headphone outputs

Maximum output level	+15 dBu = 0 dBFS
THD+N @ −1 dBFS	−116 dB / 0.00015%
Dynamic range	124 dB A-weighted
Frequency response	±0.5 dB, 10 Hz to Fs/2 (Nyquist)
Output impedance	10 Ω
Maximum output into 30 Ω	5.55 V peak / 1.03 W
Maximum output into 60 Ω	6.44 V peak / 691 mW
Maximum output into 600 Ω	6.55 V peak / 71 mW

Digital conversion

Specification	Horizon 8P
DAC	32-bit
DAC dynamic range	132 dB

DSP Mixer Roundtrip Latency

All figures at 64 sample buffer size.

Sample rate	Latency
44.1 kHz	4.286 ms
48 kHz	3.938 ms
88.2 kHz	2.143 ms
96 kHz	1.969 ms
176.4 kHz	1.077 ms
192 kHz	0.99 ms

Digital I/O

Specification	Horizon 8P
Optical digital inputs	2
Optical digital outputs	2
Digital formats	ADAT / S/PDIF
Maximum ADAT I/O	16 channels per input or output direction
S/PDIF I/O	2 channels
Thunderbolt ports	2
Word clock input	1
Word clock output	1
Word clock accuracy	±10 ppm

Supported sample rates

• 44.1 kHz

• 48 kHz

• 88.2 kHz

• 96 kHz

• 176.4 kHz

• 192 kHz

S/PDIF supports sample rates up to 96 kHz.

ADAT channel count

Sample rate	Digital 1	Digital 2	Total
48 kHz	8	8	16
96 kHz	4	4	8
192 kHz	2	2	4

Power

Specification	Horizon 8P
Power connection	IEC mains connection
Mains input	100–240 VAC, 50/60 Hz
Maximum power consumption (no charging)	35 W
Power consumption, charging 1 device	50 W
Power consumption, charging 2 devices	65 W
Calculated current at 100 V, no charging	0.35 A
Calculated current at 100 V, charging 1 device	0.50 A
Calculated current at 100 V, charging 2 devices	0.65 A

Physical specifications

Specification	Horizon 8P
Rack space	1U
Dimensions (H × W × D)	44.5 × 483 × 330 mm
Weight	4.15 kg
Minimum rack depth	400 mm, including cable clearance
Front-panel depth at rack mounting points	4 mm
Cooling	Natural convection
Recommended maximum ambient temperature	35°C
Ventilation	Side ventilation slots; keep clear of obstruction