Description At the heart of the ISA range is the microphone preamplifier with its Lundahl input transformer — essentially the same circuit, based on the original ISA110, that has been used for 30 years in successive Focusrite designs. The input transformer imparts a special character to the sound that can't be truly emulated in any other way: inseparable from the microphone itself, the transformer input stage is ideal for use with classic microphones. But this mic pre has a twist the original didn't have, which makes it far more versatile: four carefully-selected impedances allow you to match microphone to input in different ways. Bring out the character of a classic mic or emphasise a special feature, or go for a totally transparent, modern sound — it's up to you. Whether you're an artist, engineer or producer, you'll appreciate the versatility of the ISA One, with its front-panel DI input. The DI includes low/high impedance switching and an amplifier output, and its own feed to the optional A/D converter and separate rear-panel XLR output. Classic mic pre with independent DI Featuring a rugged, portable all-metal enclosure, ISA One combines the classic Focusrite microphone preamp with a flexible, independent DI channel and optional 192kHz precision A-D conversion. At the heart of the ISA range is the microphone preamplifier with its Lundahl input transformer — essentially the same circuit, based on the original ISA 110, that has been used for 30 years in successive Focusrite designs. The input transformer imparts a special character to the sound that can't be truly emulated in any other way, while the modern twist of variable input impedance allows for a new degree of flexibility. Whether you're an artist, engineer or producer, you'll appreciate the versatility of the ISA One, with its front-panel DI input. The DI includes low/high impedance switching and an amplifier output, and its own feed to the optional A-D converter and separate rear-panel XLR output. The Focusrite Studio Console reborn in your DAW The Focusrite Studio Console defined countless hits of the 80s and 90s, thanks in large part to its ISA 110 Equaliser and ISA 130 Dynamics Modules. Brainworx's bx_console Focusrite plugin brings you stunningly accurate emulations of both in a single plugin, perfectly capturing the famously warm, open sound of two of the most revered pieces of studio hardware ever made. Enjoy 3 years of warranty All Focusrite products are built to the highest standards, and are designed to provide many years of reliable performance. Features ISA series transformer-based preamplifier — Encased in a rugged and portable chassis, ISA One offers the classic Focusrite microphone preamplifier at its lowest cost to date. Flexible independent DI channel — ISA One is ideal for both engineers and demanding performers alike, featuring front-panel inputs with High (2.4 MΩ) and Low (470 kΩ) impedance settings, independent gain control, an output for routing to an amp, an independent XLR output on the rear, and routing to the optional A-D converter. Switchable impedance — Choose one of four carefully selected input impedances, including the original ISA110 setting, to suit any microphone. Headphone output with volume control — ISA One can feed either a sum of the two input to the headphones output, or an external stereo cue mix (such as a stereo feed from an interface) via two TRS jack inputs on the rear of the unit. Dedicated insert point — Allows you to place extra processing between the preamplifier or DI and the optional converter, such as an EQ or compressor. Optional stereo 192kHz A-D converter — You can chose to upgrade your unit with an optional digital card that delivers the best A-D performance in its class (dynamic range of 118dB). Alternatively, the ISA One Digital comes with the A-D converter as standard. Lundahl LL1538 input transformer — The original mic transformer used in the original Red modules helps to provide the unique sound and performance of this groundbreaking design. Backlit VU meter with variable calibration — ISA One has a moving coil VU meter with variable calibration to suit analogue and digital recording media, alongside two six-LED peak meters; inputs can be metered either pre- or post-insert. Specifications Preamp Type: Solid State Number of Channels: 1 Phantom Power: Yes Analog Inputs: 1 x XLR (Mic), 1 x XLR (Line), 1 x 1/4" (Line), 1 x 1/4" (DI), 1 x 1/4" (Amp) Analog Outputs: 1 x XLR (Main), 1 x XLR (DI), 2 x 1/4" (Cue Mic R/L), 1 x 1/4" (Headphone) Frequency Response: 10Hz–125kHz Dimensions: 220 x 104 x 254mm Weight: 3.9kg
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