About This Listing

Focusrite ISA Two Single-Channel Mic Preamp/DI

You may only need a couple of mic preamps, but they need to be the very best. The ISA Two dual-mono mic pre is the ideal solution: two independent channels of the highest quality classic Focusrite mic pres, with line in and front-panel instrument inputs – no DI box required. Based on the legendary designs found in the Focusrite Forte and Studio Consoles, ISA Two is the ideal front-end for your rack.

Superb sound spanning four different decades - Focusrite’s microphone preamplifiers go back to the original Focusrite ISA 110 modules, when Rupert Neve was commissioned by George Martin in 1985 to create a no-compromise channel strip for his Neve console. Combining the very best solid-state electronics with transformer coupling, Focusrite mic pres have played a key part in the recording of hundreds of hit records and they’re the choice of leading artists, producers and engineers around the world.

Lundahl Transformers - At the heart of the ISA Two is a pair of Lundahl LL1538 transformers. ISA products have relied on Lundahl from the beginning, since their components were originally specified in 1985. The LL1538 features a 3-section winding, resulting in very low leakage inductance and, as a result, an extended frequency response. They’re encapsulated in mu-metal cans to shield them from stray magnetism.

Variable input impedance and up to 80 dB of gain - ISA Two features two classic Focusrite mic preamps, with four impedance settings including the original ISA 110 setting. Variable input impedance allows you to go for an accurate, transparent sound or choose to highlight the character of your favourite vintage mic – and anywhere in between. With up to 80 dB of low-noise gain, ISA Two can perform in the most demanding situations - really bringing your ribbon, condenser or moving coil mics to life.

Insert your choice of processors - Each channel has a fully-balanced insert point accessed via TRS sockets on the rear panel and activated with a front-panel button, so it’s easy to use outboard processors with the ISA Two. Just plug in your choice of EQ, compressor or limiter.

Front panel, per channel:

  • 1/4" instrument input
  • Variable input impedance - Low, ISA 110, Medium, High
  • Input selection - Mic, Line, Instrument
  • 0 - 30 dB/30 - 60 dB gain switch
  • Phantom power switch
  • Phase invert switch
  • 0 - 60 dB gain in 10 dB steps
  • 0 - +20 dB continuously variable trim
  • Variable high-pass filter with on/off switch
  • Insert point on/off switch
  • Eight-LED user-calibrated level meters
  • Single power switch

Rear panel, per channel:

  • XLR-F mic inputs
  • 1/4" TRS line inputs
  • 1/4" TRS Sends
  • 1/4" TRS Returns
  • XLR-M line output
  • Single peak meter calibration dial
  • Single IEC power socket

Condition
Brand
Model
  • ISA Two Dual Mono Mic Preamp
Categories

About the Seller

Vintage King Audio

Troy, MI, United States
(16,785)
Joined Reverb:2015
Items Sold:26,954
Product Overview
The sound of a mythical recording console is something you used to book a large-format facility to hear -- no longer the case with the Focusrite ISA Two microphone preamp. Taking the transformers and basic preamp design of the ISA110 input module from the legendary (and exceedingly rare) Focusrite Forte & Studio consoles, the ISA Two shrinks this wide and musical tone down into a 1U rackmount enclosure and gives it a price tag that anyone who is serious about their audio quality can afford. With two channels of ISA preamp, variable high-pass filter to chop out any rumble or unwanted bass, and two instrument inputs perfect for breathing life into sterile digital synths, the ISA Two offers up serious value and is a must-have for any studio.
Shop 23 options from $650
Product Reviews
Focusrite ISA Two Dual-Mono Microphone Preamplifier with Independent DI
Focusrite ISA Two Dual-Mono Microphone Preamplifier with Independent DI
$899.99

About This Listing

Focusrite ISA Two Single-Channel Mic Preamp/DI

You may only need a couple of mic preamps, but they need to be the very best. The ISA Two dual-mono mic pre is the ideal solution: two independent channels of the highest quality classic Focusrite mic pres, with line in and front-panel instrument inputs – no DI box required. Based on the legendary designs found in the Focusrite Forte and Studio Consoles, ISA Two is the ideal front-end for your rack.

Superb sound spanning four different decades - Focusrite’s microphone preamplifiers go back to the original Focusrite ISA 110 modules, when Rupert Neve was commissioned by George Martin in 1985 to create a no-compromise channel strip for his Neve console. Combining the very best solid-state electronics with transformer coupling, Focusrite mic pres have played a key part in the recording of hundreds of hit records and they’re the choice of leading artists, producers and engineers around the world.

Lundahl Transformers - At the heart of the ISA Two is a pair of Lundahl LL1538 transformers. ISA products have relied on Lundahl from the beginning, since their components were originally specified in 1985. The LL1538 features a 3-section winding, resulting in very low leakage inductance and, as a result, an extended frequency response. They’re encapsulated in mu-metal cans to shield them from stray magnetism.

Variable input impedance and up to 80 dB of gain - ISA Two features two classic Focusrite mic preamps, with four impedance settings including the original ISA 110 setting. Variable input impedance allows you to go for an accurate, transparent sound or choose to highlight the character of your favourite vintage mic – and anywhere in between. With up to 80 dB of low-noise gain, ISA Two can perform in the most demanding situations - really bringing your ribbon, condenser or moving coil mics to life.

Insert your choice of processors - Each channel has a fully-balanced insert point accessed via TRS sockets on the rear panel and activated with a front-panel button, so it’s easy to use outboard processors with the ISA Two. Just plug in your choice of EQ, compressor or limiter.

Front panel, per channel:

  • 1/4" instrument input
  • Variable input impedance - Low, ISA 110, Medium, High
  • Input selection - Mic, Line, Instrument
  • 0 - 30 dB/30 - 60 dB gain switch
  • Phantom power switch
  • Phase invert switch
  • 0 - 60 dB gain in 10 dB steps
  • 0 - +20 dB continuously variable trim
  • Variable high-pass filter with on/off switch
  • Insert point on/off switch
  • Eight-LED user-calibrated level meters
  • Single power switch

Rear panel, per channel:

  • XLR-F mic inputs
  • 1/4" TRS line inputs
  • 1/4" TRS Sends
  • 1/4" TRS Returns
  • XLR-M line output
  • Single peak meter calibration dial
  • Single IEC power socket

Condition
Brand
Model
  • ISA Two Dual Mono Mic Preamp
Categories

About the Seller

Vintage King Audio

Troy, MI, United States
(16,785)
Joined Reverb:2015
Items Sold:26,954
Product Overview
The sound of a mythical recording console is something you used to book a large-format facility to hear -- no longer the case with the Focusrite ISA Two microphone preamp. Taking the transformers and basic preamp design of the ISA110 input module from the legendary (and exceedingly rare) Focusrite Forte & Studio consoles, the ISA Two shrinks this wide and musical tone down into a 1U rackmount enclosure and gives it a price tag that anyone who is serious about their audio quality can afford. With two channels of ISA preamp, variable high-pass filter to chop out any rumble or unwanted bass, and two instrument inputs perfect for breathing life into sterile digital synths, the ISA Two offers up serious value and is a must-have for any studio.
Shop 23 options from $650
Product Reviews

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