MOTU
M6
interface_dac
$400
Used market: $280*
Specifications
4 of 12 values have a recorded source- Type
- Audio Interface·
- Ein dBu
- -129✓
- Bus Powered
- yes·
- Max Gain dB
- 60✓
- Analog Inputs
- 4x XLR/TRS combo (Mic/Line/Inst), 2x 1/4" TRS Line In·
- Analog Outputs
- 4x 1/4" TRS Balanced Line Out, 2x 1/4" TRS Headphones·
- Digital Inputs
- USB-C·
- Min Usb Power W
- 4.5·
- Headphone Output
- Max Voltage Vrms: 3.27·
- Max Input Level dBu
- 10✓
- Phantom Power Provided
- yes·
- Release Year
- 2023·
Expert Audio Engineering Commentary
Gain Staging Advice
MOTU's appendix B covers the M2, M4 and M6 in one table, and the preamp rows are shared: 0 to +60 dB, -129 dBu EIN, +10 dBu maximum input. The M6 differs from the M4 in channel count and in having two headphone outputs, not in preamp.
Amplification Warning
+12.5 dBu at the headphone jack is 3.27 V unloaded — the sheet does not say into what. Both headphone outputs mirror the main monitor mix, so the second one is a second pair of ears on the same signal, not a second independent cue mix.
* Estimated with the depreciation fallback (~70% retained value). · checked on 8/5/2026