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musical instrument details
Focusrite ISA428 Pre Pack 4-Channel Mic Preamp
Estimated price for orientation: 560 $
Category: Preamps and Channel Strips
Class:
Description Brand: Focusrite Number of Channels: 4 Type: Microphone Preamp Features: Digital Output, High Impedance Input, Phantom Power, Rack-Mountable Model: Isa 428 Country/Region of Manufacture: United Kingdom MPN: Does Not Apply UPC: Does not apply
If you've been waiting and in search of a high quality, pristine microphone Preamp, then you've found one here in this pristine Focusrite ISA428. The Focusrite MH441 ISA428 Pre Pack 4-Channel Mic Preamp is the perfect multichannel front end for any professional DAW or home studio. It features 4 classic Rupert Neve-designed transformer-based preamps with switchable impedance and direct instrument inputs. An optional 8-channel 192kHz ADC, preceded by the new proprietary Soft Limiter circuit, provides the perfect path into your Pro Tools HD system.This Preamp's topology benefits include superb common-mode rejection, an excellent overload margin, and with its shared gain structure (20dB from the hand-wound transformer and up to 40dB from the amplifier), an extremely low noise floor and super-wide bandwidth (10Hz to 200kHz). The MH441 design is the cornerstone of Focusrite's signature "warm-yet-transparent" sound and is a point of reference for any discerning audio professional.In addition, the ISA428's input stage provides enhanced control and creativity, allowing you to switch among 4 carefully selected input impedance settings. The original ISA 110 setting is supplemented by 3 further impedance settings so you can perfectly match the preamp with any microphone and maximize level or use different settings creatively to shape the sound of the microphone being used. Should you need extra processing between preamp and conversion, insert points are featured on every channel.The Soft Limiter opto circuit protects the ADC and is a new design from Focusrite. It prevents digital overs entirely while minimizing the undesirable distortion that standard limiter circuits often generate.Finally, the new ADC embodies cutting-edge conversion technology encompassed within pristine Focusrite circuitry, providing 8 conversion channels of the highest quality at sample rates of up to 192kHz. Running at 96kHz allows for up to 16 (2X8, parallel) simultaneous digital outputs in addition to the 4 main analog outputs. Digital output options include dual AES/EBU, S/PDIF, and dual ADAT lightpipe. Full digital metering is provided for every channel alongside new moving-coil peak meters designed to catch even the fastest of transients.A second analog unit can be connected using the 4 extra ADC input channels on the rear of the unit containing the optional ADC. This makes full use of the 8 channels provided on a single optional ADC and expands your front-end capacity from 4 preamps and 8 digital outputs to 8 preamps and 8 digital outputs.With classic preamp technology, custom Focusrite input and limiting circuits, and the very best in A/D conversion technology, the MH441 ISA 428 Pre Pack raises the bar for multichannel recording solutions. It can also be used as an additional set of high-quality preamps for any analog or digital console or hard disk recorder.FEATURES4 classic Rupert Neve-designed transformer-based preamps8 channels of cutting-edge A/D conversion, running at up to 192kHz and protected by proprietary optical Soft Limiter circuitSwitchable impedance for unparalleled mic matching or extended mic creativity - includes the classic ISA 110 settingMultiple front panel instrument DI - no separate DI box requiredAnalog insert points on every channelRupert Neve-designed high-pass filters on every channelSPECIFICATIONSMH441 ISA428 Pre Pack 4-Channel Mic PreampInputs
Transformer-based Rupert Neve ISA design
Gain range:
Line: +/-18dB
Mic: 0 to 60dB (6dB steps)
Inst: +10 to +40dB variable
Input impedance:
Line: 10kOhm
Mic: Variable - 600, 2.4k, and 6.8kOhm plus original ISA 110 settings
Inst: >1M ohmAnalog performance
Noise:
Line: -96dB
Mic: -128dB (EIN with 150 ohm input resistance at 60dB of gain)
THD:
Line: 0.003% with 0dBu, 1kHz input and 20Hz-22kHz band-pass filter
Mic: 0.003%
Analog I/O connectors
DI inputs: 1/4" jack (unbalanced)
Mic inputs: XLR (balanced)
Line: 1/4" TRS jack (balanced)
Insert sends and returns: 1/4" TRS (balanced)
Additional ADC inputs: XLR (balanced) line level
Analog outputs: XLR (balanced)Digital output option
AES/EBU and S/PDIF dual 9-pin D-types
Optical ADAT lightpipe
Bit depths: 16-, 20-, or 24-bit
Sample rate options: 44.1, 48, 88.2, 96, 176.4 and 192kHz
Clock options: standard or 256XMeter: 0 dBFS = +22dBuDigital performance
SNR: 120dB A-weighted
Description
| Brand: | Focusrite | Number of Channels: | 4 |
| Type: | Microphone Preamp | Features: | Digital Output, High Impedance Input, Phantom Power, Rack-Mountable |
| Model: | Isa 428 | Country/Region of Manufacture: | United Kingdom |
| MPN: | Does Not Apply | UPC: | Does not apply |
If you've been waiting and in search of a high quality, pristine microphone Preamp, then you've found one here in this pristine Focusrite ISA428. The Focusrite MH441 ISA428 Pre Pack 4-Channel Mic Preamp is the perfect multichannel front end for any professional DAW or home studio. It features 4 classic Rupert Neve-designed transformer-based preamps with switchable impedance and direct instrument inputs. An optional 8-channel 192kHz ADC, preceded by the new proprietary Soft Limiter circuit, provides the perfect path into your Pro Tools HD system.This Preamp's topology benefits include superb common-mode rejection, an excellent overload margin, and with its shared gain structure (20dB from the hand-wound transformer and up to 40dB from the amplifier), an extremely low noise floor and super-wide bandwidth (10Hz to 200kHz). The MH441 design is the cornerstone of Focusrite's signature "warm-yet-transparent" sound and is a point of reference for any discerning audio professional.In addition, the ISA428's input stage provides enhanced control and creativity, allowing you to switch among 4 carefully selected input impedance settings. The original ISA 110 setting is supplemented by 3 further impedance settings so you can perfectly match the preamp with any microphone and maximize level or use different settings creatively to shape the sound of the microphone being used. Should you need extra processing between preamp and conversion, insert points are featured on every channel.The Soft Limiter opto circuit protects the ADC and is a new design from Focusrite. It prevents digital overs entirely while minimizing the undesirable distortion that standard limiter circuits often generate.Finally, the new ADC embodies cutting-edge conversion technology encompassed within pristine Focusrite circuitry, providing 8 conversion channels of the highest quality at sample rates of up to 192kHz. Running at 96kHz allows for up to 16 (2X8, parallel) simultaneous digital outputs in addition to the 4 main analog outputs. Digital output options include dual AES/EBU, S/PDIF, and dual ADAT lightpipe. Full digital metering is provided for every channel alongside new moving-coil peak meters designed to catch even the fastest of transients.A second analog unit can be connected using the 4 extra ADC input channels on the rear of the unit containing the optional ADC. This makes full use of the 8 channels provided on a single optional ADC and expands your front-end capacity from 4 preamps and 8 digital outputs to 8 preamps and 8 digital outputs.With classic preamp technology, custom Focusrite input and limiting circuits, and the very best in A/D conversion technology, the MH441 ISA 428 Pre Pack raises the bar for multichannel recording solutions. It can also be used as an additional set of high-quality preamps for any analog or digital console or hard disk recorder.
FEATURES4 classic Rupert Neve-designed transformer-based preamps8 channels of cutting-edge A/D conversion, running at up to 192kHz and protected by proprietary optical Soft Limiter circuitSwitchable impedance for unparalleled mic matching or extended mic creativity - includes the classic ISA 110 settingMultiple front panel instrument DI - no separate DI box requiredAnalog insert points on every channelRupert Neve-designed high-pass filters on every channel
SPECIFICATIONSMH441 ISA428 Pre Pack 4-Channel Mic Preamp
Inputs
Transformer-based Rupert Neve ISA design
Gain range:
Line: +/-18dB
Mic: 0 to 60dB (6dB steps)
Inst: +10 to +40dB variable
Input impedance:
Line: 10kOhm
Mic: Variable - 600, 2.4k, and 6.8kOhm plus original ISA 110 settings
Inst: >1M ohmAnalog performance
Noise:
Line: -96dB
Mic: -128dB (EIN with 150 ohm input resistance at 60dB of gain)
THD:
Line: 0.003% with 0dBu, 1kHz input and 20Hz-22kHz band-pass filter
Mic: 0.003%
Analog I/O connectors
DI inputs: 1/4" jack (unbalanced)
Mic inputs: XLR (balanced)
Line: 1/4" TRS jack (balanced)
Insert sends and returns: 1/4" TRS (balanced)
Additional ADC inputs: XLR (balanced) line level
Analog outputs: XLR (balanced)Digital output option
AES/EBU and S/PDIF dual 9-pin D-types
Optical ADAT lightpipe
Bit depths: 16-, 20-, or 24-bit
Sample rate options: 44.1, 48, 88.2, 96, 176.4 and 192kHz
Clock options: standard or 256XMeter: 0 dBFS = +22dBuDigital performance
SNR: 120dB A-weighted
Transformer-based Rupert Neve ISA design
Gain range:
Line: +/-18dB
Mic: 0 to 60dB (6dB steps)
Inst: +10 to +40dB variable
Input impedance:
Line: 10kOhm
Mic: Variable - 600, 2.4k, and 6.8kOhm plus original ISA 110 settings
Inst: >1M ohmAnalog performance
Noise:
Line: -96dB
Mic: -128dB (EIN with 150 ohm input resistance at 60dB of gain)
THD:
Line: 0.003% with 0dBu, 1kHz input and 20Hz-22kHz band-pass filter
Mic: 0.003%
Analog I/O connectors
DI inputs: 1/4" jack (unbalanced)
Mic inputs: XLR (balanced)
Line: 1/4" TRS jack (balanced)
Insert sends and returns: 1/4" TRS (balanced)
Additional ADC inputs: XLR (balanced) line level
Analog outputs: XLR (balanced)Digital output option
AES/EBU and S/PDIF dual 9-pin D-types
Optical ADAT lightpipe
Bit depths: 16-, 20-, or 24-bit
Sample rate options: 44.1, 48, 88.2, 96, 176.4 and 192kHz
Clock options: standard or 256XMeter: 0 dBFS = +22dBuDigital performance
SNR: 120dB A-weighted