The ISA One microphone preamplifier delivers Focusrite's prestigious ISA transformer-based preamp in a rugged and portable chassis, at a groundbreaking price.
ISA One features the classic vintage microphone preamplifier topology from the original ISA110 module, which formed the cornerstone of each channel of Focusrite's legendary Forté console.
The preamp is complemented by a line input and an independent D.I. channel, complete with dedicated gain control, active or passive impedance switch, a TRS Jack output for routing to an amp and an independent XLR output on the rear. This flexible independent D.I. makes the ISA One ideal both for engineers wishing to blend a D.I.’d guitar signal with a mic’d guitar cabinet, and for demanding performers who require a single classic solution for both guitar and vocals.
A variable impedance circuit has been added, allowing the user to switch between four carefully selected input impedance settings. In addition to the original ISA110 impedance, three further impedance settings allow perfect matching, or creative mismatching of the preamp with any microphone. ISA One also features an insert point, should the need arise to place extra processing between the preamp or D.I. and the optional converter. Phantom power, phase reverse and a 75Hz, 18dB/octave high-pass filter are also available from the angled front fascia.
Independent input metering for both channels is provided in the form of 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. The meter calibrations utilise all the same reference points as Avid's Pro Tools HD system, allowing effortless line-up.
ISA One’s headphone output features a dedicated volume control, which delivers an external stereo cue mix (a simple click track or a stereo mix feed from an interface or a live console) fed to the headphones via two TRS jack inputs on the rear of the unit. More...
In the section below we will explain the different outlet types as clear as possible. If you have any further questions, don't hesitate to contact us.
This product is a showroom model. It is taken out of the original packaging and quality-checked by our product specialists. In many cases, the original packaging is no longer available. All accessories and manuals are available and included. All stringed instruments get serviced when arriving in our stores.
This product is used for demonstration purposes in our stores. It is taken out of the original packaging and quality-checked by our product specialists. In many cases, the original packaging is no longer available. All accessories and manuals are available and included.
This product was returned from an internet order within the money-back period. It is taken out of the original packaging, but has not been used, according to our return conditions. Usually, the original packaging is available and all accessories and manuals are available and included.
This is a second-hand product that we have traded. We only trade products when they meet our high quality standards. During the trade process, the technical conditions of the product are thoroughly checked by our product specialists. Usually, the original packaging is not available.
• Fresh boxed • Mint / as new • Gently used • Light damage • Transport Damage • Total Loss
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