Focusrite Saffire Pro 40 20-in, 20 out Firewire interface With Eight Focusrite Mic Pres


$ 409.99

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20-in, 20 out Firewire interface with eight Focusrite mic pres

Designed with the sophisticated project studio owner or smaller commercial facility in mind, Saffire PRO 40 features a versatile 20 inputs and 20 outputs, including a complement of eight Focusrite mic preamps guaranteed to get the best out of any microphone, with minimal noise and distortion even at high gain. Two mic/line/instrument inputs are accessed via the front panel, which also provides two independent headphone monitor outputs.

Pro40 Front

30-year heritage of acclaimed mic pre design

Focusrite’s unparalleled preamp legacy forms the foundation of this versatile interface, with eight award-winning Focusrite preamps. Focusrite came into being thirty years ago in 1985 when console design legend Rupert Neve was asked by Sir George Martin to develop new mic pres for the consoles at AIR studios. The resulting, sought-after sound has been the basis of Focusrite mic preamps ever since. Those used in our computer interface ranges are a special 2-stage design created specially for the purpose, combining low noise, high gain and exceptional headroom, allowing you to get the best out of any microphone.

PRO40 Pres

Precision conversion in and out

Our acclaimed mic pres are combined with the very latest in interfacing technology, including precision digital conversion based on exceptional circuit design and multi-layer boards, offering the lowest possible latency. JetPLL™ jitter-reduction technology helps to attain the goal of pristine audio quality, coupled with excellent routing flexibility and future-proof, rock-solid stability. Meanwhile, powerful Saffire MixControl DSP-based zero-latency mixing software allows the maximum monitoring flexibility.

Circuit board

A host of I/O options

All eight main inputs feature combo XLR/TRS connectors and sense which is in use automatically. Inputs 1 and 2 appear on the front panel and support mic, line and instrument operation, while the remaining six are on the rear panel and offer mic and line input functionality. In addition to the comprehensive monitoring options described below, there are eight TRS line outputs. In addition, ADAT I/O, stereo S/PDIF I/O and two virtual ‘loopback’ inputs for routing digital audio between software applications are provided. Every mic pre features phantom power, with the first two channels also featuring -9dB pads for additional headroom. Front panel five-step LED metering for each analogue input offers accurate viewing of levels.

Pro40 Rear

MixControl: zero-latency DSP-powered mixing software

Saffire MixControl, the ultra-low-latency 18 x 16 DSP Mixer/Router software provided with Saffire PRO 40, sets a new standard at this price point for audio interface control. It features unparalleled output routing and monitoring, as well as intuitive one-click options, a clear and concise mixing layout and large on-screen metering for inputs, outputs and submixes.


Maximum monitoring

Two independent headphone buses are provided, each with their own level controls available on the front panel. A dedicated stereo monitor mix TRS output features pads for improved sound quality when connected to active monitor speakers, while an ‘anti-thump’ circuit protects your monitor speakers from spikes when booting up or shutting down. Front panel controls include a main monitor dial with dim and mute switches, all of which fully integrate with customisable software to cover every possible monitoring need, providing a set of controls for any set-up from basic stereo to full 7.1 surround.



  • Eight high-quality award-winning Focusrite preamps
  • High-quality 24-bit/96kHz FireWire interfaceKeep your USB Buses Free
  • Total I/O count of 20 inputs and 20 outputs
  • Upgrade your standard sequencer effects and bring a touch of class to your session with all-new Focusrite Compression, Reverb, Gating and EQ VST/AU plug-ins
  • Two separate headphone buses
  • Saffire MixControl ultra-low-latency DSP mixer/router
  • Unmatched routing flexibility
  • Xcite+ Software Bundle



Microphone Inputs

Dynamic Range (A-Weighted): 109dB
SNR (A-weighted): -109dB
Frequency Response: 20Hz – 20kHz +/- 0.1 dB
THD+N: 0.001% (measured at 1kHz with a 20Hz/22kHz bandpass filter)
Noise: EIN > 125dB (128dB analogue to digital) (measured at 60dB of gain with 150 Ohm termination (20Hz/22kHz bandpass filter)
Maximum level (A-weighted): 8dBu at 1%

Line Inputs

Dynamic Range (A-Weighted): 109dB
SNR (A-weighted): -109dB
Frequency Response: 20Hz – 20kHz +/- 0.1dB
THD+N: < 0.001% (measured with 0dBFS input and 22Hz/22kHz bandpass filter)
Noise: -90dBu (22Hz/22kHz bandpass filter)
Maximum level (A-weighted): 28.5dBu at 1%

Instrument Inputs

Frequency Response: 20Hz-20KHz +/- 0.1dB
Maximum Input Level min gain no pad: +8dBu
Maximum Input Level max gain no pad: -42dBu
THD+N: -1dBFS, min gain, no pad < 0.0015%
SNR: 109dB “A”
DNR: 109dB “A”
Input Impedance > 1MOhm
X-talk: < -100dB
Adjustable Gain: > 50dB
Pad Attenuation: 10dB

Headphone Outputs

Frequency Response 20Hz-20KHz +/- 0.1dB
SNR 109dB “A”
DNR 109dB “A”
Maximum Output into 32R +12.4dBu (+10.2dBV)
Power into 32R 250mW
Output Impedance < 7Ohms
Load Impedance > 24Ohms

Line Level Outputs

Dynamic Range (A-Weighted): 108dB
SNR (A-weighted): -108dB
THD+N: < 0.001% (measured with 0dBFS input and 22Hz/22kHz bandpass filter)
Maximum level (A-weighted): 15.7dBu at 0.883%


Additional Conversion Performance

Clock jitter: < 250 picoseconds
THD+N AMPL (A-weighted)= -109dBFS

Connectivitiy – Analogue Channel Inputs (Inputs 1-8)
2 Mic/Line/Inst Combo XLR (Inputs 1 and 2)
6 Mic/Line Combo XLR (Inputs 3-8)
Automatic switching of Mic / Line (e.g. inserting a jack switches from Mic to either Line or Instrument)

Connectivitiy – Digital Channel Inputs (Inputs 9-18) 44.1-96kHz
Stereo S/PDIF input on RCA 
8 ADAT inputs on Optical Connector, reduces to 4 inputs at 88.2/96kHz • Optical input can be switched to S/PDIF 3/4 in software preferences (Both ADATs and S/PDIF over RCA input disabled)


Connectivity – Analogue Audio Outputs (Outputs 1-10)

8 ¼” TRS Jack (Outputs 3-10) 
2 monitor mix outputs on ¼” TRS Jack (Outputs 1 and 2)
Stereo headphones mix 1 on ¼” TRS (also routed to outputs 7 & 8)
Stereo Headphones mix 2 on ¼” TRS (also routed to outputs 9 & 10)

Connectivity – Digital Channel Outputs (Outputs 11-20) 44.1-96kHz
Stereo S/PDIF output on RCA 
8 ADAT outputs on Optical Connector, reduces to 4 outputs at 88.2/96kHz
Optical output can be switched to S/PDIF 3/4 in software preferences (ADATs disabled)

Other I/O

2 6-pin FireWire sockets 
2 Standard 5-pin DIN MIDI connectors: In and Out 
IEC mains power input connector

Weights and Dimensions

Weight: 2.98kg

Height: 45mm

Width: 320mm

Depth: 195mm


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