The MC1.2+ is a bidirectional digital-to-digital converter designed to interconnect USB, AES/EBU, AES3id and S/P-DIF digital audio sources and destinations. It converts PCM audio streams up to 192 kHz and supports simultaneous routing of converted outputs while keeping the original stream available. The unit also regenerates the USB audio stream to reduce jitter and improve signal integrity.

Key features include a custom asynchronous USB interface, low-noise audio clock oscillators and USB power isolation to reduce phase noise. The MC1.2+ performs real format conversions that comply with AES and IEC standards and supports PCM 16-bit and 24-bit at sample rates from 44.1 kHz to 192 kHz. Conversions can operate in both directions at the same time when clock rates match.

On the technical side the device offers USB Audio Class 2.0 support with drivers for Windows and native compatibility with MacOS and Linux. The hardware provides input clock displays, individual lock indicators for USB and digital inputs and SCMS status bit analysis for S/P-DIF. Low latency USB operation and clock regeneration make the MC1.2+ suitable for critical monitoring, mastering and recording workflows.

Connectivity includes a bi-directional USB2.0 interface, transformer-balanced XLR AES3 I/O, multiple 75 ohm BNC connectors for S/P-DIF and AES3id, and Toslink optical I/O for S/P-DIF. All PCM outputs can be driven simultaneously while a selected PCM input can be forwarded to USB when sample rates match. The MC1.2+ works with common DAW drivers and streaming sources and integrates with digital mixers, converters and effects processors.

The MC1.2+ addresses practical needs in studios and high-end audio systems by enabling lossless format conversion and long-distance signal refreshing. It allows users to include high quality DACs without USB inputs in USB-based setups and to convert signals for devices that require AES3id BNC connections. Applications include recording chains, mastering suites, broadcast signal routing and audiophile USB feeds that benefit from USB regeneration.

Installation and daily use are straightforward thanks to clear front panel LED chains that indicate power source, input locks and clock rates. The unit offers three power modes - USB bus power, internal universal PSU and a 9 V DC input for external supplies - and optional rack mounting hardware for 1U installation. The aluminum front panel and steel housing with vibration-damping feet deliver robust build quality and reliable operation.

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