Focusrite ISA 428 Pre Pack

Four classic microphone pre-amplifiers and high-quality A-D conversion.

Focusrite ISA428 Pre Pack features
▪ Four ISA-series transformer-based pre-amps: The benefits of Focusrite’s classic pre-amp topology include superb common-mode rejection, an excellent overload margin, an extremely low noise floor and super-wide bandwidth
▪ Dedicated analogue insert points: Switchable insert points are also featured on every channel, allowing routing (between pre-amp and output) to additional external processing
▪ Accurate ‘moving coil’ peak meters: Clear metering designed to catch even the fastest and most elusive of transients
▪ Four front panel instrument inputs: Instant access on the front fascia and no separate DI box required
▪ Eight line inputs: Four additional A-D converter inputs combine with the four pre-amp inputs to provide eight line inputs, routable discretely to the eight-channel A-D converter option
▪ Eight Channel optional 192kHz A/D conversion card: With the additional four ADC inputs, two ISA428’s can be used with a single ADC, providing eight channels of pre-amplification, A-D conversion and VU metering
▪ Custom Global A-D converter ‘soft clip’ limiter: Focusrite’s custom optical design protects the A-D converter by preventing ‘digital overload’. It requires that an A-D converter be installed
▪ Switchable Impedance: Ideal for mic matching or extended microphone creativity. Settings include the ‘Vintage ISA110’ setting, providing the original Focusrite signature sound
▪ Variable Focusrite high pass filter: Provided on every channel, this is the same filter as featured on the original ISA110 and the Focusrite forte console