The ISA One from Focusrite is a single-channel, transformer-based microphone preamp, based on the original ISA 110 preamp that formed the cornerstone of each channel of the legendary Forte console. It features classic vintage topology and includes the Lundahl L1538 transformer and a custom Zobel network.





In addition to switchable input impedance settings for the microphone preamp, the unit includes a line input on XLR and 1/4" TRS phone jacks. An independent DI channel features a dedicated gain control, active or passive impedance switch, a 1/4" TRS output for routing to an amplifier, and an independent XLR output on the rear.





The ISA One features an insert point should the need arise to place extra signal processing between the preamp or DI, and the optional analog-to-digital converter. Phantom power, phase reverse and a 75 Hz, 18 dB/octave high-pass filter are also available from the angled front fascia.





Independent input metering for both channels is provided by a moving coil VU meter with variable calibration to suit analog and digital recording media, alongside two six-LED peak meters. Inputs can be metered either pre or post insert. The meter calibrations utilize the same reference points as Avid's Pro Tools HD systems, allowing effortless integration with Pro Tools.





A premium bonus is the Brainworx bx_console Focusrite SC channel-strip plug-in, a stellar digital emulation of the legendary and rare Focusrite Studio Console. Only 10 of the consoles were ever produced, but you can access its famed sound directly in your DAW.The black Kopul Premium Performance 3000 Series XLR Male to XLR Female Microphone Cable (20') is designed to be an extremely quiet and flexible cable that is ideal for the most demanding live sound and performance applications. The cable is engineered to be durable and provide protection against EMI, RFI, and static noise. While the cable's color-coding affords the ability to quickly differentiate between multiple connections onstage, it provides a pleasant aesthetic quality at the same time.





Premium Performance 3000 Series cables are made from 24-AWG OFC copper wire that's wrapped with PE insulation and a conductive PVC inner shield. A cotton-yarn inner layer helps reduce electrostatic and microphonic noise. The 95% dual-spiral shielding makes the cable resistant to EMI and RFI noise. The Neutrik XX silver connectors provide a high level of connectivity, and all the solder connections are shrink-wrapped for protection.