This stereo, 24-bit/192kHz ADC embodies cutting-edge conversion
technology, encompassed within pristine Focusrite circuitry, providing
stereo channels of the highest quality conversion at frequency rates of
up to 192kHz. Digital output formats include 2-channel single/dual wire
AES/EBU or 2-channel S/PDIF, all via a 9-pin D-type connector. The ADAT
and TOSlink ports are stereo and operate at 24-bit/96kHz.
The benefits from installing Focusrite's optional ADC extend far beyond
the obvious financial advantages and space saving issues. As most
converters use the same chips, it is the quality of the surrounding
analog circuitry that makes the difference. This is the reason why the
ISA ADC is unrivaled in terms of both price and performance.
Focusrite's R and D team have carefully considered the organization of
the PCB layout and grounding, ensuring that the S/N ratio and linearity
of the converter are optimized. The noise floor and THD (Total Harmonic
Distortion) are kept to a minimum by the nature of the power supply and
the analog input design, with analog filtering positively effecting the
sound of the digital noise. In addition, the supporting circuitry
around the ADC (dealing with data transmission, bit reduction and
incoming word clock) has been carefully structured, as it influences
the converter through heat, power supply and data jitter.
One of the most important aspects of the ADC is the clock design, as
this determines the linearity of the digital output. All Focusrite ADCs
are designed to have incredibly low jitter figures (44.1kHz-192kHz <
20 psec) which significantly improve the quality of the sound. With the
converters housed within the analog units, the signal path is kept as
short as possible, having no unnecessary analogue connections to the
inputs of recording equipment. In addition, Focusrite units do not
contain extraneous clocks or other sources of digital noise, unlike so
many digital desks and multi-I/O DSP configurations.
Configuration:
- AES/SPDIF 9-pin female w/ button for 1Wire or 2Wire configuration and selector button for AES or SPDIF
- Optical SPDIF port
- ADAT SPDIF port
- Word Clock I/O - BNC connections
