Focusrite Isa 428 Mkii Microphone Preamplifier
2148.00€
The Focusrite ISA 428 MkII is a 4-channel transformer-based microphone preamp housed in a 2U rackmount chassis. It features four ISA series preamps with selectable impedance settings, including the classic ISA 110 mode. Each channel offers mic, line, and front-panel instrument inputs, a variable high-pass filter (16–420Hz), and a dedicated analog insert point. The unit provides up to 60dB of gain with an additional +20dB trim, totaling 80dB of gain range. It includes 6-segment LED meters for each channel and optional A-D conversion via the ISA ADN8 card, offering 8 channels of 24-bit/192kHz conversion with a dynamic range of 122dB. The ISA 428 MkII is ideal for professional studios seeking versatile and high-quality preamplification.
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