Focusrite Clarett OctoPre

Focusrite Clarett OctoPre - 8 Channel Mic Pre and AD/DA Converter

Scan code: LN74973 Manufacturer code: Clarett OctoPre Request call
From £31.44 / month (APR 14.9%)
Monthly Payment: £113.66
Instalment Rate: 14.9% p.a. (fixed)
Cost of purchase: £655.00
Total inc. interest: £681.95
Monthly Payment: £58.81
Instalment Rate: 14.9% p.a. (fixed)
Cost of purchase: £655.00
Total inc. interest: £705.63
Monthly Payment: £40.55
Instalment Rate: 14.9% p.a. (fixed)
Cost of purchase: £655.00
Total inc. interest: £729.79
Monthly Payment: £31.44
Instalment Rate: 14.9% p.a. (fixed)
Cost of purchase: £655.00
Total inc. interest: £754.55
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Product Overview The Addictive Keys virtual instrument from XLN Audio is now included for free with all Focusrite audio interfaces, and is available for existing customers as well as new customers. One full license per account enables you to choose one world-class Addictive Keys instrument, such as Modern Upright, Studio Grand, Electric Grand or Mark One.

8 In. 8 Out. Over ADAT.
Whatever you record, however you work, there will come the day that you need more inputs. Clarett OctoPre gives you eight - and eight outputs too - that you can use to extend the capabilities of your Clarett Thunderbolt audio interface - or any other interface fitted with ADAT optical inputs and outputs.

Eight Clarett Mic Pres with extra ‘Air’
The mic pres have been designed specifically for the Clarett range, with plenty of gain, yet low noise and distortion - and great sound quality. They include a special “Air” feature that switches in an analogue model of the classic transformer-based Focusrite ISA mic pre, switching the impedance of the preamp to that of the original ISA, and enabling a ‘transformer resonance effect’, giving your microphone recordings the air and clarity of an ISA transformer-based mic pre recording. In addition, the mic pres have plenty of headroom and are ideal for recording drums and other extreme level sources.

Mic, line and instrument inputs - plus eight outputs
The front panel includes dual instrument inputs featuring extra headroom to handle the loudest pickup, while the rear panel includes universal XLR/jack connectors for the remaining auto-switching mic/line inputs. In addition, each input has its own switched insert point for single-cable connection of compression, equalisation and other outboard analogue processing - with hard-wired relay bypass so you can leave outboard gear or a patchbay connected ready to access at the press of a button.

In addition to providing eight mic pres with 24-bit, 192kHz A-D conversion, the Clarett OctoPre offers D-A conversion of up to eight ADAT digital channels feeding 25-pin DSUB rear-panel analogue outputs, making it useful for mixing as well as tracking. The line outputs can optionally provide line level output feeds from the mic pres - useful for feeding a live console, for example, while recording the digital outputs. Aside from the insert point, the Clarett OctoPre is balanced end to end for exceptional noise immunity.

Precision Digital Conversion
There's no point in having the superb-quality mic preamps in the Clarett OctoPre without equally superb digital conversion to back them up. Focusrite has been making digital audio converters almost as long as mic preamps, and those in the Clarett OctoPre ensure that you maintain the highest possible quality getting your music in and out of your DAW. The Clarett OctoPre's precision 24-bit converters operate at standard sample rates all the way up to 192kHz - ideal for hi-res audio - with up to 118dB (A-D) /119dB (D-A) dynamic range. Clarett OctoPre also includes both internal and external clocking with Word Clock I/O for synchronisation with external devices.

More information can be found in the PDF below:
Data Sheet Features • 8-channel I/O mic/line expansion with ADAT interfacing
• Eight Clarett-style mic pres with 'Air' transformer emulation effect
• Eight line outputs fed from D-A or mic pres
• 24-bit A-D and D-A up to 192kHz sample rate - ideal for hi-res audio
• Dual-port ADAT I/O - eight channels at up to 96kHz, four channels at 176.4/192kHz
• Switched insert with true bypass on every channel
• Mic Pres and front panel instrument inputs with extra headroom
• Six-segment LED metering and channel clip indicators
• 48v Phantom Power to all inputs

Tech Spec

Supported Sample Rates
• 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz

Microphone Inputs
• Frequency Response: 20 Hz - 35 kHz ±0.1 dB
• Dynamic Range (Without Insert): 118 dB (A-weighted)
• Dynamic Range (With Insert): 115 dB (A-Weighted)
• THD+N: 0.001%
• Noise EIN: –128 dBu (A-Weighted)
• Maximum input level: +18 dBu ±0.5 dB
• Gain Range: 57dB

Line Inputs
• Frequency Response: 20 Hz - 35 kHz ±0.1 dB
• Dynamic Range (Without Insert): 117 dB (A-weighted)
• Dynamic Range (With Insert): 115 dB (A-Weighted)
• THD+N: 0.001%
• Maximum input level: +26 dBU ±0.5 dB
• Gain Range: 57dB

Instrument Inputs
• Frequency Response: 20 Hz – 35 kHz ± 0.1 dB
• Dynamic Range (Without Insert): 116 dB (A-weighted)
• Dynamic Range (With Insert): 114 dB (A-Weighted)
• THD+N: 0.001%
• Maximum input level: +14dBu ±0.5 dB
• Gain Range: 57dB

Line Outputs
• Dynamic Range (Line Outputs): 118 dB (A-Weighted)
• Maximum Output Level (0 dBFS): +16 dBu, balanced
• THD+N: 0.0007%
Product Type Preamp
PC Interface N/A
Assignable Faders  
Assignable Knobs  
Assignable Pads  
Connectivity (Input)
  • 2 x 6.3 mm monaural phone jack (Ext. Input)
  • 6 x 6.3mm Phone jack (Unbalanced)
  • 2 x ADAT
  • 6 x XLR
  • 2 x XLR / 6.35mm Jack Combo
Connectivity (Output) 2 x ADAT
Sample Rate  
Bit Rate N/A
Frequency Response (Input) N/A
Frequency Response (Output) N/A
Maximum Input Level N/A
Maximum Output Level  
Dynamic Range  
Dimensions (mm)  
Misc. Notes + Wordclock In/Out and DB25 Line Out
Package Type Retail

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12 months
Return to base
DOA Period:
30 days
RTB Period:
12 months
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Focusrite Clarett OctoPre
Focusrite Clarett OctoPre