Specialist suppliers of pro audio/video equipment to the film, post-production, broadcast and music recording industries.

  • My Cart

    Your cart is empty

    You have no items in your shopping cart.

Focusrite

Focusrite ISA 430 MKII

Single Channel Strip

Be the first to review this product

The ISA 430 MkII represents the pinnacle of Focusrite’s analogue channel strip technology, bringing together all the classic designs in one comprehensive production tool. Augmented with additional features and flavours, alongside unmatched internal routing and connectivity, the ISA 430 MkII enables today’s recording professional to enjoy the unique sonic contribution of these heritage designs within one extremely versatile processor. With the Producer Pack, Focusrite’s iconic status as the leading manufacturer of channel strips remains unrivalled

Excl. Tax: £1,249.17 Incl. Tax: £1,499.00

Focusrite ISA 430 MKII

More Views

Details

The ISA 430 MkII represents the pinnacle of Focusrite’s analogue channel strip technology, bringing together all the classic designs in one comprehensive production tool. Augmented with additional features and flavours, alongside unmatched internal routing and connectivity, the ISA 430 MkII enables today’s recording professional to enjoy the unique sonic contribution of these heritage designs within one extremely versatile processor. With the Producer Pack, Focusrite’s iconic status as the leading manufacturer of channel strips remains unrivalled.

  • The ISA430 MkII brings together a set of classic Focusrite heritage elements:
  • Classic Focusrite ISA transformer-based mic pre with variable input impedance
  • Versatile equalisation including two dual-range parametrics, HPF and LPF
  • Dual-mode compressor with both VCA and optical circuitry
  • VCA-based expander/gate with "hysteresis" setting to avoid chattering
  • Phase-cancellation de-esser for more natural processing
  • Optional 192kHz/24-bit A-D conversion with soft limiter

Together, they form a comprehensive channel strip with impeccable specifications. But the ISA430 MkII is much more than that. The four main elements – mic pre, EQ, Dynamics and A-D converter – can be accessed individually and each used as a separate processor. Elements can be chained and patched together via multiple inserts and in different orders to form a variety of signal paths to meet every processing requirement. Used as either a comprehensive channel strip or as separate processors, the ISA430 MkII offers you the pinnacle of classic Focusrite analogue processor design and performance.

Additional Informationhello

Features

The Most Versatile Channel Strip: The ISA 430 MkII features Focusrite’s ultimate heritage sonic signature including transformer-based mic pre, versatile EQ with two dual-range parametrics, compressor with both transparent VCA and vintage optical circuitry, expander/gate, phase-cancellation de-esser and optional 192kHz/24-bit 2-channel A-D conversion

 

Transformer-based Mic Pre with Variable Impedance: The mic pre suits almost all mics including vintage and ‘difficult’ models such as ribbons. Variable impedance can be set for transparency or to highlight special features of the mic, such as presence bumps and rolloffs. Switchable additional inductance adds “air” without EQ

 

Four Units in One, Independently Accessible: Use the mic pre, EQ, Dynamics and A-D converter independently, or route them to build powerful simultaneous processors. Re-order different sections to create multiple alternative signal paths

 

Powerful Processing Options: Insert HPF, LPF and EQ into the Dynamics sections for frequency-sensitive processing – Listen function lets you audition the side-chain to fine-tune the effect

 

Control Over Dynamics: Expander/gate features “hysteresis” setting to avoid chattering on difficult signals. De-esser is based on phase cancellation at the chosen frequency, for more natural sound. simply nothing quite like it

Specification

Line

  • Gain Range: +10dB to +40dB continuously variable
  • Input Impedance: >1M Ohm


Microphone

  • Gain Range: 0 to +60dB in 10dB steps
  • Input Impedance: Variable as follows: 600 Ohm, 1k4 Ohm, 2k4 Ohm, 6k8 Ohm
  • EIN: -128dB with 150 Ohm terminating impedance at 60dB of gain
  • Noise: -97dBu
  • THD: 0.001% with -20dBu 1kHz input and 20Hz?22kHz bandpass filter


Compressor (VCA mode)

  • Threshold Range: -28dB to +12dB
  • Ratio: 1.5:1 to 10:1
  • Slope: Soft knee
  • Attack: 100µs to 100ms
  • Release: 100ms to 7s, variable or auto (program dependent)


Compressor (Vintage Opto mode)

  • Threshold Range: -28dB to +12dB
  • Ratio: 1.5:1 to 5:1 in Comp mode, 5:1 to 20:1 in Lim mode
  • Slope: Soft knee in Comp mode, Hard knee in Lim mode
  • Attack: Fixed
  • Release: Fixed


EQ

  • Low Pass Filter: 18dB/oct from 400Hz to 22kHz
  • High Pass Filter: 18dB/oct from 20Hz to 1k6Hz
  • Parametric section is comprised of: Low-mid & Hi-mid parametric, each with continuously variable boost/cut with centre detent, frequency sweep control with two ranges, and fully variable Q. Low-mid frequencies 40Hz to 400Hz (120Hz to 1k2Hz when x3 is pressed). Hi-mid frequencies 600Hz to 6kHz (1k8Hz to 18kHz when x3 is pressed)
  • Shelving section is comprised of: High Frequency Shelf: The frequency range steps are 1.5kHz, 3.3kHz, 6.8kHz and 15kHz (2.2kHz, 4.7kHz, 10kHz and 18kHz when Hi Range is engaged). Low Frequency Shelf: The frequency range steps are 20Hz, 56Hz, 160Hz and 460Hz (33Hz, 95Hz, 270Hz and 655Hz when Hi Range switch is engaged)


Gate

  • Threshold Range: -40dB to +10dB
  • Gate Range: 0 to -80dB
  • Attack: switched fast or slow
  • Release: 100ms to 5s
  • Hold: 20ms to 4s
  • Expander Ratio: 0 to 5:1

 

De-Esser

  • Threshold Range: 22dB
  • Frequency Range: 2k2 to 9k2
  • Ratio at centre frequency: 2:1


Limiter

  • Threshold Range: 20dBu
  • Ratio: infinite (Brick Wall)
  • Attack: Frequency dependent

 

Optional A-D Converter Specifications

Output formats (All channels)

  • AES/EBU (5V / 110 ohms), S/PDIF (0.8V / 75 ohms)
  • ADAT lightpipe (SMUX I/II/IV)
  • S/PDIF lightpipe


Bit depth: 24 bits


AES3 output jitter

  •  <:500ps, 50Hz-100kHz
  •  <:400ps, 700Hz-100kHz

 

Frequency response

  •  All ranges: 20Hz–20kHz ± 0.3dB (50Hz–16kHz ± 0.1dB)
  •  176.4kHz, 192kHz : 16Hz–55kHz ± 0.5dB


THD+n

  •  –117.5dB A-weighted, audio band-limited, 1kHz, -60dB FS input
  •  Maximum 0.004% at –1dB FS (1kHz)
  •  Minimum 0.0008% at –13dB FS (1kHz)


Idle channel noise:  113.5dB at 44.1kHz, CCIR-weighted, full bandwidth


Crosstalk:  –109dB at 12kHz

 

Dimensions and Weight

  • 484mm (W) x 85mm (H) x 250mm (D)
  • 7.58kg

 

Download ISA 430 MK11 User Manual

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.