Technical Specifications

Audio Inputs

Model	MIC Configuration
DX816	5 balanced MIC inputs (XLR) Fader1 = MIC-1 Fader2 = MIC-2+2b Fader3 = MIC-3+3b
DX822	10 balanced MIC inputs (XLR) Fader1 = MIC-1 Fader2 = MIC-2+2b Fader3 = MIC-3+3b Fader4 = MIC-4 Fader5 = MIC-5+5b Fader6 = MIC-6+6b

Phantom: 48V on all MIC inputs, switchable from front panel.

Input Levels

Analog Outputs

Output	Level
PGM & REC (balanced)	+4 dBm nominal +28 dBu (10 kΩ) +20 dBm (600 Ω)

Digital Levels

K-15 broadcast recommendation: 0VU = –15 dBFS

Monitoring & External Hybrid

Output	Connector	Level / Characteristics
Studio (speakers)	RJ45	+4 dBu, auto-muted
Control Room (speakers)	Mini-jack	+4 dBu, auto-muted
Studio (headphones)	RJ45	+10 dBu, amp for up to 8 headphones
Control Room (headphones)	Stereo jack	+10 dBu
External hybrid I/O	TRS	+4 dBu / 10 kΩ. Unbalanced. mix-minus send.

GPO

Channels	Type	Specification
MIC-1, MIC-2, MIC-3	Open collector	+24 V @ 0.1 A
Line 6 & 7	Open collector	+24 V @ 0.1 A

Talkback

Tally Light

Signal	Specification
On-air	12 VDC @ 0.15 A (two Solidyne lights)
Connector	2.5 mm tubular (internal pin)

Audio

Parameter	Specification
Frequency response	20–20,000 Hz ±0.5 dB (LIN -> PGM)
MIC equalizer	4 bands: 80 Hz (shelving), 160 Hz (bell), 6.3 kHz (bell), 8 kHz (shelving), ±15 dB
MIC compressor	Threshold 0VU, attack < 10 ms, ratio 10:1, max compression 20 dB, variation < 2 dB at +15 dB
MIC noise	EIN = –120 dBu / 150 Ω
Line noise	S/N > 75 dBA
Dynamic range	>90 dBA (CD quality)
PGM–REC crosstalk	>70 dBA @ 1 kHz
Distortion	<0.03 % THD (30–15,000 Hz)
Phase	<3º L/R @ 50–10,000 Hz
Stereo correlation	Error <0.2 dB L/R in 0–40 dB fader range
Headroom	22 dB @ LIN -> PGM Ref +4 dBu / 10 kΩ

VU-meters

Telephone Hybrid

Feature	Specification
Type	Active 3-line hybrid (2 land lines (POTS) + 1 Bluetooth 4.0 mobile phone @16 kHz)
Response	300–3,400 Hz
Noise	>60 dBA S/N
Rejection	>40 dB
Adjustment	From front panel
Priority circuit	12 dB when interrupting local announcer
Logic	Single 100 mm fader controls CUE, Hold and Live
Protection	Floating transformer inputs + SIOV varistors

Bluetooth

Power Supply

Dimensions / Weight