Focusrite ISA One Analog Microphone Preamp

Top analog microphone preamp with Lundahl L1538 transformer and Zobel cells, switchable impedance (600Ohm, 1400Ohm, 2400Ohm and 6800Ohm), separate DI channel for electrified instruments, headphone outputs, inputs for external mix, Insert for external effects, LED indication, Phantom power supply, High-pass filter, option extended by A / D converter ISA Stereo ADC.The Focusrite ISA One is a state-of-the-art mic preamp that is almost identical to the legendary ISA110 module. It is a transformer preamplifier in a robust package that will pleasantly surprise you with its sound and price. The ISA One model has the same topology as the original ISA 110 module, so we find the Lundahl L1538 transformer and Zobel cells here. In addition to the microphone input, there is also a line input and a separate instrument DI channel with its own gain, impedance switch and output. It is thus possible to conveniently record a guitar from two sources (DI and using a microphone), or to easily record a singing guitarist. One of the few changes from the original is the addition of an input impedance selection circuit. ISA One handles four different input impedances: 600ohm, 1400Ohm (same as the original ISA110), 2400Ohm and 6800Ohm. Switching impedance brings two positives: the ability to match the impedance of the microphone and preamplifier, but also the ability to deliberately set a different impedance, which can have a positive effect on the color of the sound. The Focusrite ISA One also offers
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