The Focusrite ISA One Classic Analogue Single-Channel Pre-Amp is a premium-grade preamplifier that provides classic warmth with a unique character. The ISA One is a combination of a classic Focusrite preamp with an independent DI perfect for recording artists. The ISA One comes equipped with a Lundahl LL1538 input transformer the same one found on the original ISA 110. Whether youre a music producer vocalist or audio engineer the ISA One is a must-have for your studio setup. Blending vintage architecture with modern design and functionality the preamp is perfect for a range of applications. The DI section allows you to switch between low/high impedance settings and the preamp also provides you with an amplifier output for connecting to external gear. You can also capture the classic sound of the ISA 110 thanks to the special setting which emulates the legendary circuitry. To top it all off Focusrite have included Brainworx bx_console which is a high-end channel strip plugin that faithfully recreates the sound of the ISA 110 and ISA 130 signal paths found in the legendary Focusrite Studio Console.