Focusrite ISA ADC (No Longer Available)
MH477 24-bit/192kHz A/D Option Card for the ISA 430 MKII Producer Pack
Sorry, the Focusrite ISA ADC is no longer available. We've left this page up for reference only. Check out the great alternatives on this page or call toll-free (800) 222-4700 to speak with a Sweetwater Sales Engineer about similar products.
From Our Research Team:
A/D Card for your ISA 430 MKII!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.
Focusrite ISA ADC Card Configuration:
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David, Renton, WA
Focusrite ISA ADC
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