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| Spec | Allen & Heath CQ-20B | IK Multimedia iRig Pro Duo I/O |
|---|---|---|
| General | ||
| Category | Mixer-Type | Entry |
| Reference Price (USD) | $999 | $200 |
| Supported OS | macOS/Windows | Android/iOS/macOS/Windows |
| Connection | USB 2.0 | USB 2.0 |
| Inputs | ||
| Mic Preamps | 16 Better value | 2 |
| Combo Inputs (XLR/TRS) | 16 Better value | 2 |
| Line Inputs | 4 | — |
| Hi-Z Inputs | — | — |
| ADAT Input (ch@48kHz) | — | — |
| Optical Ports (Input) | — | — |
| S/PDIF (Coax) Input | — | — |
| S/PDIF (Optical) Input | — | — |
| AES/EBU Input | — | — |
| Outputs | ||
| Analog Main Output | 2 | 2 |
| Analog Line Output | 6 | — |
| Headphone Output | 1 | 1 |
| ADAT Output (ch@48kHz) | — | — |
| Optical Ports (Output) | — | — |
| S/PDIF (Coax) Output | — | — |
| S/PDIF (Optical) Output | — | — |
| AES/EBU Output | — | — |
| Features | ||
| Phantom Power (48V) | Yes | Yes |
| MIDI I/O | Yes | 1 IN / 1 OUT (2.5mm jack) |
| Loopback | — | Yes |
| DSP Effects | Yes (96kHz FPGA FX) | — |
| Direct Monitoring | Yes | Yes |
| Audio Performance | ||
| Max Sample Rate (kHz) | 96 | 192 Better value |
| Max Bit Depth (bit) | 24 | 24 |
| Preamp Gain Range (dB) | — | 50 |
| DR Input (dB, A-weighted) | — | — |
| DR Output (dB, A-weighted) | — | — |
| DR (Unknown Conditions) | — | — |
| THD+N Mic Input (dB(%), 1kHz) | — | — |
| THD+N Output (dB(%), 1kHz) | — | — |
| THD+N (dB(%), Unknown) | — | — |
| EIN (dBu, A-weighted) | — | — |
| EIN (dBu, Unknown) | — | -102 |
| Software & Other | ||
| Bundled Software | — | variousi OS/Androidapps |
| Notes | stage box-type digital mixer+USB IF, CQ Mix Padapps control, 24x24 SD recording, Wi-Fi/BT, rack-mountable-capable | 2in/2out portable IF, Class-A preamp, battery-powered(AA battery), 3h recording/10h playback |