The Focusrite ISA Two features two channels of Focusrite’s premium variable input impedance microphone preamplification in an elegant 1U rack-mount configuration with both line and front-panel instrument inputs – ISA Two is perfect for superb stereo recording or for additional high-quality channels. Microphone preamplifiers lie at the root of the Focusrite family tree. Back in 1985, when Sir George Martin asked console design legend Rupert Neve to design new modules for AIR Studios, the Input Signal Amplifier, or ISA – the mic pre – was the first. That design was the foundation of Focusrite’s benchmark Red range, and its descendants form the ISA series available today.With 80dB of gain, dedicated insert point and high-pass filter, and user-calibrated meters, ISA Two is the ideal input stage for your rack or DAW front-end, when connected to a high-quality interface. Key features: Variable input impedance with Lundahl LL1538 transformer with 4 selectable impedances 2 front-panel instrument inputs with 1/4” jacks on the front panel 80dB of clean, low-noise gain Dedicated per-channel insert point: rear-panel TRS connectors allow access to a dedicated insert, actuated by a front-panel button for instant introduction of outboard processors such as EQ or a compressor Variable high-pass filter based on the filter found in the ISA 110 & Studio Console Offers 18dB/octave attenuation with variable cut-off frequency of 16 to 420 Hz
