Focusrite ISA428 MkII 4-channel Microphone Preamp

Equipment was only used for a cassette tape digitizing project. During use, equipment was connected to balanced power source and sinewave UPS at all times.

Does not include power cord. The ISA 428 Mk II incorporates four of Focusrite's renowned mic pres in a simple-to-operate 2U enclosure, placing four mic preamps, instrument inputs and line ins at your fingertips. The original Focusrite mic pre was designed to suit the microphones of the time; today's model makes one small change, adding three additional input impedances to the classic ISA110 setting, allowing you to match any microphone, old or new, and access a wide range of sounds, from the character and warmth of a vintage mic to the clear transparency of a modern design. On the back: four line inputs and switchable insert points on each channel to allow routing via external signal processors.

There's also a versatile, vintage design variable high-pass filter to control what's going on at the bass end. Accurate, 6-LED meters to tell you exactly what's going down. Four ISA series transformer-based preamps. ISA series mic preamps have been the producers' choice on countless hit records over the last two decades. Ideal for mic matching or extended microphone creativity.

Settings include the'Vintage ISA110' setting, providing the original focusrite signature sound. Four front panel instrument inputs. Instant access on the face of the unit - no separate DI box required.

Switchable insert points are featured on every channel, allowing routing (between preamp and output) through additional external processing. Accurate LED meters for every channel. Clear metering designed to catch even the fastest and most elusive of transients.