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The 5U size Rio3224-D provides 32 ins, 16 outs, and four AES/EBU outputs.

  • Specs

General specifications

Sampling frequency rateExternal 44.1kHz: +4.1667%, +0.1%, -0.1%, -4.0% (±200ppm) / 48kHz: +4.1667%, +0.1%, -0.1%, -4.0% (±200ppm) / 88.2kHz: +4.1667%, +0.1%, -0.1%, -4.0% (±200ppm) / 96kHz: +4.1667%, +0.1%, -0.1%, -4.0%
Signal delay Less than 3ms INPUT to OUTPUT, connect with CL5 using Dante, Dante Receive Latency set to 0.25ms (one way), Fs=48kHz
Total harmonic distortion Less than 0.05% 20Hz-20kHz@+4dBu into 600Ω, Fs=44.1kHz, 48kHz / Less than 0.05% 20Hz-40kHz@+4dBu into 600Ω, Fs=88.2kHz, 96kHz INPUT to OUTPUT, Input Gain = Min.
Frequency response +0.5, -1.5dB 20Hz-20kHz, refer to +4dBu output @1kHz, INPUT to OUTPUT, Fs=44.1kHz, 48kHz / +0.5, -1.5dB 20Hz-40kHz, refer to +4dBu output @1kHz, INPUT to OUTPUT, Fs=88.2kHz, 96kHz
Dynamic range 108dB typ., INPUT to OUTPUT, Input Gain = Min
Hum & noise levelEquivalent input noise -128dBu typ., Equivalent Input Noise, Input Gain=Max
Residual output noise -88dBu Residual output noise, ST master off
Crosstalk -100dB, adjacent INPUT/OUTPUT channels, Input Gain = Min.
Power requirements US/Canada: 120V 60Hz, Japan: 100V 50/60Hz, China: 110-240V 50/60Hz, Korea: 220V 60Hz, Other: 110-240V 50/60Hz
Power consumption 120W
DimensionsW 480mm (18 7/8in)
H 232mm (9 1/4in)
D 362mm (14 1/4in)
Net weight 12.4kg (27.3lb)
Accessories Dante Virtual Soundcard license sheet
Others Temperature Range: Operating temperature range: 0 - 40℃, Storage temperature range: -20 - 60℃

Analog input characteristics

Input TerminalsGAINActual Load
For Use With
Input LevelConnector
NominalMax. before clip
1-32 (Rio3224-D)
1-16 (Rio1608-D)
1-8 (Ri8-D)
+66dB 7.5kΩ 50-600Ω Mics &
600Ω Lines
-62dBu (0.616mV) -42dBu (6.16mV) XLR-3-31 type (Balanced)*1
-6dB +10dBu (2.45V) +30dBu (24.5V)

*1. XLR-3-31 type connectors are balanced.(1=GND, 2=HOT, 3=COLD) *2. In these specifications, 0dBu = 0.775 Vrms. *3. All input AD converters are 24bit linear, 128times oversampling. *4. +48V DC ( phantom power ) is supplied to INPUT XLR type connectors via each individual software controlled switch. *5. Rio3224-D only

Analog output characteristics

Output TerminalsActual Source
For Use With
Max.Output Level
Select SW*4
Output LevelConnector
NominalMax. before clip
1-16 (Rio3224-D)
1-8 (Rio1608-D, Ro8-D)
75Ω 600Ω Lines +24dB (default) +4dBu (1.23 V) +24dBu (12.3V) XLR-3-32 type (Balanced)*1
+18dB -2dBu (616mV) +18dBu (6.16V)

*1. XLR-3-32 type connectors are balanced.( 1=GND, 2=HOT, 3=COLD ) *2. In these specifications, 0dBu = 0.775 Vrms. *3. All output DA converters are 24bit, 128times oversampling. *4. There are switches inside the body to preset the maximum output level. *5. Rio3224-D only

Digital Input & Output Characteristics

TerminalFormatData lengthLevelAudioConnector
Primary/Secondary Dante 24bit or 32bit 1000Base-T 24ch Input/32ch Output (Rio3224-D)
8ch Input/16ch Output (Rio1608-D)
8ch Output (Ri8-D)
8ch Input (Ro8-D)
etherCON Cat5e (Rio3224-D, Rio1608-D)
RJ-45 (Ri8-D, Ro8-D)

Digital Output Characteristics

TerminalFormatData lengthLevelConnector
AES/EBU OUT 1/2 - 7/8 *1 AES/EBU Professional Use 24bit RS422 XLR-3-32 type (Balanced)*2

*1 Rio3224-D only *2. XLR-3-32 type connectors are balanced.( 1=GND, 2=HOT, 3=COLD )