MOTU 16A 32x34 Thunderbolt/USB4 Audio Interface with AVB Networking
The 16A is a line-level workhorse: sixteen balanced quarter-inch inputs and sixteen balanced, DC-coupled outputs on the rear of a single rack space, all running at up to 192 kHz. Each input takes up to +21 dBu and carries 20 dB of digital gain; each output has 99 dB of digital trim, which makes level-matching a rack of outboard gear a software job rather than a screwdriver job. Two ADAT optical banks add sixteen more channels at base rates, with S/MUX at double rates and TOSLink on bank A.
Connection is by two Thunderbolt 4 / USB4 Type-C ports, class compliant so no driver is required, with round-trip latency around 1.8 ms at 96 kHz. Two Gigabit AVB Ethernet ports move up to 128 channels in and out to other MOTU interfaces or a standards-based AVB network. The onboard mixer with reverb, modeled console EQ, gate and compression runs from a web app served by the hardware, so a laptop, tablet or phone on the same network is the control surface.
| Sample Rates | 44.1, 48, 88.2, 96, 176.4, 192 kHz |
|---|---|
| Analog Inputs | 16 x 1/4 in TRS line in (balanced/unbalanced), max +21 dBu, +20 dB digital gain per input |
| Analog Outputs | 16 x 1/4 in TRS line out (balanced, DC coupled), max +21 dBu, -99 dB digital trim per output |
| Digital I/O | 2 banks (16 ch) ADAT optical at 1x, S/MUX at 2x, bank A switchable to TOSLink |
| Computer I/O | 2 x Thunderbolt 4 / USB4 (40 Gbps) Type-C, USB audio class compliant |
| Total Audio I/O | 32 in / 34 out at 1x, 24 in / 26 out at 2x, 16 in / 18 out at 4x |
| Networking | 2 x Gigabit AVB Ethernet, 16 streams in/out to 96 kHz, up to 128 channels each way |
| Round Trip Latency | About 1.8 ms, 32-sample buffer at 96 kHz |









