Focusrite A/D Option ISA-220

Focusrite A/D Option ISA-220

The ISA 220 Session Pack provides all the audio precision tools required to infuse your session with Focusrite’s renowned sonic

performance. It features many of the original circuits of the flagship ISA 430 MKII Producer Pack, and also includes some new facilities of

its own. It also features the same digital output option as the original ISA 430, providing you with a high quality digital route direct from

the ISA 220 into your digital recording system.

The ISA 220 starts with the classic Focusrite transformer-coupled microphone pre amp, with phantom power and phase reverse. A fourband

Focusrite EQ section follows, based on the EQ circuits featured in the ISA 430 and ISA 110. The compressor features a proprietary

Class A VCA with side-chain circuitry, and can be placed in the signal flow before the EQ at the press of a button, if desired. Also included

is a unique feature labelled “Blend”, which provides a means of achieving smoother compression at extreme settings by mixing

uncompressed source signal along with the compressed portion.

The ISA220 also features an opto-based de-esser which uses a combination of EQ and phase cancellation to create a smoother and

less obtrusive result. Last but not least, a frequency adaptive, 3-band limiter is provided to ensure distortion-free limiting.

For visual reference, ISA 220 provides a classic analogue VU style meter which can be switched to display input or compressor

gain-reduction levels. A pair of 16 segment LED meters are included to display output levels, both analogue and digital in conjunction

with the optional 24-bit/96 kHz stereo digital output (AES/EBU, S/PDIF & TOSLINK) card. This card offers 44.1 - 96 kHz operation and

can be used as a high-quality mono / stereo tracking converter, or at mix down as a stereo converter for final mastering.

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