Focusrite Platinum VoiceMaster Pro Processor

Focusrite Platinum VoiceMaster

 Pro Signal Processor is designed to create the perfect vocal sound at an unbelievably competitive price point. The Focusrite Platinum VoiceMaster unit bridges the gap between the flagship ISA 430 'Producer Pack' and the original VoiceMaster, featuring design aspects from both the legendary ISA range and the award winning, cost-effective Platinum range.

Famous Focusrite Class A preamp plus an instrument input
The renowned Focusrite Class A mic preamp from the original VoiceMaster is retained in the VoiceMaster Pro, but an instrument input has been added to the front, along with phantom power, phase reverse and variable high-pass filter. A new vocal-friendly optical expander follows, so the VoiceMaster Pro provides smoother and more linear processing.

"Vintage Harmonics" processor emulates 1970s tape-based units
Another revolutionary element of the VoiceMaster Pro is the "Vintage Harmonics" processor, designed to emulate classic '70s tape-based vocal enhancement processes. The compressor of Focusrite Platinum VoiceMaster is an updated version of the Platinum series optical device. As with the ISA 430, VoiceMaster Pro allows the user to change the position of both processing blocks within the signal-chain. (Both the compressor and the Vintage Harmonics sections can be moved around.)

Latency-free stereo monitoring
Perhaps the most innovative of VoiceMaster Pro's exciting new features is a latency-free stereo monitoring section, providing comprehensive headphone monitoring of both the full mix and the vocal (alongside an FX send and return control). The VoiceMaster Por puts an end to DAW latency problems when tracking!

Tuneable "Tube Sound" circuit and voice-optimized EQ
The VoiceMaster Pro also features a new tuneable Tube Sound circuit, providing greater control and clearer indication via an extra tone control knob and tri-color "Drive" LED. The voice-optimized EQ follows, featuring improved breath and absence controls, enabling elegant handling of the varying aspects of male and female vocalists. The ISA 430's de-esser completes the VoiceMaster Pro's processing set.

The Focusrite VoiceMaster Pro is also the first Platinum series unit to feature a custom blue Focusrite VU meter. An optional A/D card is available, operating at 24 bit/96kHz with S/PDIF output and BNC word clock input, providing hassle-free digital connectivity.

Focusrite Platinum VoiceMaster has stereo latency-free monitoring section

Vintage Harmonics - a revolutionary vocal enhancer

Optional 24-bit/96kHz A/D converter

Custom Focusrite VU meter

Compressor/EQ/Harmonics order can be changed

More versatile voice-optimized EQ

Improved Tube Sound emulation with tone control

Smoother optical compressor

New voice-optimized optical expander

Mic Input Response:

• Gain range = 0dB to 60dB continuously variable
• Input Impedance = 1K4 Ohms from 10Hz to 200Khz
• EIN = 128dB measured at 60dB of gain with 150 Ohm terminating impedance and 20Hz/22KHz bandpass filter.
• THD at minimum gain (0dB) = .0004% measured with +16dBu input signal and with a 20Hz/22KHz bandpass filter.
• THD at maximum gain (60dB) = .003% measured with a -36dBu input signal and with a 20Hz/22KHz bandpass filter.
• THD at maximum Input level (26.5dBu) = .005% measured with a 20Hz/22KHz bandpass filter.
• Frequency response at minimum gain (0dB) = flat at 10Hz and -2dB down at 200KHz.
• Frequency response at maximum gain (60dB) = -2dB down at 10Hz and 200KHz.
• CMRR at full gain (60dB) = 80dB.

Line Input Response:

• Gain range = -10dB to +10dB continuously variable
• Input Impedance = 10K Ohms from 10Hz to 200Khz.
• Noise at main output with gain and fader set to unity (0dB) = -94dBu measured with a 20Hz/22KHz bandpass filter.
• Signal to noise ratio relative to max headroom (27dBu) = 121dB
• Signal to noise ratio relative to 0dBfs (+22dBu) = 116dB
• THD at unity gain (0dB) = .0006% measured with 0dBfs (+22dBu)
• input signal and with a 20Hz/22KHz bandpass filter.
• Frequency Response at unity gain (0dB) = 0.25dB down at 10Hz and -3dB down at 200KHz.>

Instrument Input Response:

• Gain range = 0dB to 40dB continuously variable
• Input Impedance = >1Meg Ohm.
• Noise at minimum gain (0dB) = -90dBu measured with a 20Hz/22KHz bandpass filter.
• Noise at maximum gain (40dB) = -78dBu measured with a 20Hz/22KHz bandpass filter.
• THD at minimum gain (0dB) = .006% measured with -10dBu input signal and with a 20Hz/22KHz bandpass filter.
• Frequency Response at unity gain (0dB) = 0.5dB down at 10Hz and -1dB down at 200KHz.
• Frequency Response at maximum gain (60dB) = 6dB down at 10Hz and -1dB down at 200KHz.>

Input Meter:

• 6 LED meter is calibrated relative to 0dBfs where 0dBfs = +22dBu (the maximum level which can be correctly converted by the optional internal A/D converter before overload occurs). The meter calibration points are as follows:

Meter panel calibration value in dBfs	Equivalent dBu value
O/L	+22.4dBu (the point at which the converter will overload)
0dBfs	+22dBu (the maximum level into the converter)
-3dBfs	+19dBu
-6dBfs	+16dBu
-10dBfs	+12dBu
-20dBfs	+2dBu (the average level to allow 20dB of headroom for Eq and dynamics processing)

High Pass Filter:

• Roll off = 18dB per octave 3 pole filter
• Frequency Range = continuously variable from 30Hz to 400Hz measured at the 3dB down point.

Optical Expander:

• Threshold hold range = -20dBfs (0dBu) to -60dBfs (-40dBu)
• Expander ratio = 2:1
• Attack time = 750uS
• Release time = 0.25s to 4s.
• Noise with maximum expansion = -96dBu measured with a 20Hz/22KHz bandpass filter.
• Signal to noise ratio relative to max headroom (27dBu) = 123dB
• Signal to noise ratio relative to 0dBfs (+22dBu) = 118dB
• 6 LED meter shows downward expansion calibrated in dB increments.

Vintage Harmonics:

• Threshold range = -10dBfs (+12dBu) to -40dBfs (-18dBu)
• Compression ratio Depth switch out = 1:1.5
• Compression ratio Depth switch in = 1:3
• Mid band centre frequency = 3.5KHz
• High band centre frequency = 20KHz
• Band Q = 0.2
• 6 LED meters show the amount of boost at the centre frequency of the band, meter calibrated in dB increments.

Optical Compressor:

• Threshold hold range = -15dBfs (7dBu) to -40dBfs (-18dBu)
• Compressor ratio Hard Ratio switch out = 2.5:1
• Compressor ratio Hard Ratio switch in = 6:1
• Attack time Slow Attack switch out = 0.5mS
• Attack time Slow Attack switch in = 5mS
• Release time = 100ms to 1s and then auto release mode when the release knob is turned fully clockwise. Auto release creates a release time dependent upon the average level of the incoming signal.
• Noise = -94dBu measured with a 20Hz/22KHz bandpass filter.
• Makeup gain = 0 to +18dB

Tube Sound:

• Harmonic generation = 2nd, 3rd and 5th harmonics generated from fundamental frequency of the incoming signal relative to position of the Drive knob.
• THD with Drive knob at cool = 0.6% with a -10dBfs (+12dBu) 1KHz input signal measured with a 20Hz/22KHz bandpass filter.
• THD with Drive knob at warm = 6% with a -10dBfs (+12dBu) 1KHz input signal measured with a 20Hz/22KHz bandpass filter.
• The effect can be monitored visually using the drive led as follows:
  

  Drive LED colour	Harmonic effect
  Blue to Green	Mostly 2nd with some 3rd
  Yellow to Orange	More 3rd and 5th
  Orange to Red	Large amounts of all harmonics above fundamental frequency

• Tone = 6dB per octave roll off low pass filter.
• Tone frequency Range = continuously variable from 4.5KHz to 30KHz measured at the 3dB down point.

Voice Optimised EQ:

Breath EQ shape = Shelving Peak frequency Shift switch out = 10KHz Peak frequency Shift switch in = 16KHz Gain range = +/-8dB	Mid EQ shape = Peak Centre frequency = 1.3KHz Q in boost mode = 0.5 Q in cut mode = 2 Gain range = +8 to -12dB
Absence EQ shape = Peak Centre frequency = 3.9KHz Q = 3.5 Gain range = 0dB to -10dB	Warmth EQ shape = Peak Centre frequency range = 120Hz to 600Hz Q in boost mode = 0.5 Q in cut mode = 2 Gain range = +8 to -12dB

De-esser:

• Threshold hold range = -10dBfs (+12dBu) to -40dBfs (-18dBu)
• De-esser ratio at centre frequency = 2:1
• Centre frequency range = 2.2KHz to 10KHz
• Q of cut = 3.5
• Attack time = 0.5mS
• Release time = 100ms
• Noise = -94dBu measured with a 20Hz/22KHz bandpass filter.

Output Meter:

• Calibrated for 0dBfs = +22dBu and indicates the level after the output fader being sent to both the internal AD converter and the VoiceMaster Pro XLR output.
• O/L LED = is lit when any section of the unit (including the cans output) reaches a level greater than 0dBfs (actual level is +22.4dBu).

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