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The ISA Two is a two-channel, transformer-based premium microphone preamp. Each channel has balanced insert points, variable high-pass filter, and variable input impedance. It features up to 80dB of low-noise gain, variable input impedance, transparent DI inputs with front panel access and rear panel TRS line inputs.

The design of ISA Two’s variable cut-off, high-pass filter has remained unchanged since its introduction in the first ISA 110 module in the 1980s. The filter provides an attenuation of 18dB/Octave and a variable cut-off frequency of 16 to 420 Hz. Additional features include phantom power and a meter on each channel, a phase-invert knob and a rear panel insert.

• 2 channel mic preamp • Up to 80dB gain • Variable cut-off, high-pass filter • 2 front panel instrument inputs • Dedicated per-channel insert point • 1U 19-inch rack-mount format

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