Protēa™ DSP Specifications
All DSP functions can be linked to 1 of 16 link groups
Input Source Selection
Input Source Select Options
Analog, Auto (Net, AES3, Analog)
Brick Wall Limiter
Threshold
-20dBu to +20dBu
Ratio
Infinite
Attack
0.2ms/dB to 50 ms/dB
Release
5ms/dB to 1000ms/dB
Compressor
Threshold
-20dBu to +20dBu
Ratio
1.2:1 to ∞
Attack
0.2 to 50ms
Release
5ms/dB to 1000ms/dB
Detector
Peak/Average
Attenuation Bus
2 available
Metering
In, Out, Attenuation, Graphical
Autoleveler Controls
Target Level
-40dBu to +20dBu
Action
Gentle, normal, aggressive, user defined
Maximum Gain
0dB to +22dB
Metering
Input, Gain, Attenuation
Ratio
1.2:1 to 10:1
Threshold Below Target
-30dB to 0dB
Gain Increase/Decrease Rate
5ms/dB to 1000ms/dB
Hold Time
0-6 sec
Ambient Noise Compensation: Output Only
Max Gain
-20dB to +20dB
Min/Base Gain
-40dB to +20dB
Gain Change Rate
0.2s/dB to 20s/dB
Link Group
16 available
ANC Input Channel
1-4 or 1-8
Noise Threshold
-40dBu to +20dBu
Program/Ambient Gain Ratio
0.3:1 to 3:1
Metering
Input level, Attenuation, Average noise
Ducking: High/Low Priority, Trigger, Filibuster, Ducked Program
Trigger Threshold
-80dBu to +20 dBu
Ducking Release
5ms/dB to 1000ms/dB
Ducking Depth
0dB to -30dB, -∞
Enable Ducking at Matrix Mixer
Yes
Metering
Input
Gate
Threshold
-80dBu to +20dBu
Range
off, 100dB to 0dB
Attack
0.2ms/dB to 50ms/dB
Release
5ms/dB to 1000ms/dB
Metering
Key Signal, Gate LED, Graphical
Advanced Gate Controls
Key Engage Enable
Yes
Key Frequency
20Hz–20kHz
Key Bandwidth
0.016 to 3.995 Octave
Gain
Gain (with/without VCA)
-50dB to +12dB, off, polarity invert
Digital VCA Groups
4 available
Remote RD8C Gain
Enable per channel, 0dB to -∞
WR-5 (neWR-5) Remote Gain
0 to -50dB, Mute
EQ: 31-Band Graphic
Filter Type
Constant Q or proportional
Bandwidth
0.499oct to 0.25oct
EQ: Parametric 2,4,6, or 10 Band
Frequency
20-20kHz
Level
-30dB to +15dB
Q Value
0.016 to 3.995 Octave
EQ: Hi/Low Shelf 6/12 dB/oct
Frequency
20Hz–20kHz
Level
-15dB to +15dB
EQ: All Pass
Frequency
20Hz–20kHz
EQ: Variable Q HP/LP
Frequency
20Hz–20kHz
Q Value
3.047 to 0.267
EQ: Notch/Bandpass
Frequency
20Hz–20kHz
Q Value
92.436 to 0.267
Feedback Suppressor: Only available with 48kHz sampling rate
Filters
12
In/Out per filter
Yes
Lock per filter and global lock
Yes
1) Measured 20Hz – 20kHz unweighted using AES17 LPF @ 48kHz sample rate.
3) Analog in to analog out measured using internal master clock.
4) Zero noise or signal amplitude variation introducted in digital domain.
5) Latency of network audio link is additional to latency of digital audio processor.
Audio professionals find our Protea™ DSP to be very
intuitive and easy to navigate—and you will too. No
need to attend a one-week training class away from
home to learn our software. Common sense layout
of controls and features, on-line help, or a visit to
the Technical Support page on our website provides
answers to all of your questions.
Filter Modes
Float, Restricted, Manual
Filter Type
Notch, Parametric
Filter Frequency Range
20Hz to 20kHz
Notch Filter
-∞
Parametric Filter
+15dB to -30dB
Filter Bandwidth
0.016 to 3.995 Octave
Detector Sensitivity
5 levels
Float Time
5 minutes to 24 hours
Crossover: 2 Way, 3 Way, 4 Way Crossover & High Pass/Low Pass Filters
Bessel & Butterworth Filters
12/18/24/48 dB/oct
Linkwitz-Riley Filter
12/24/48 dB/oct
Frequency
Off, 20Hz–20KHz
Delay: @ 48kHz Sampling Rate (Input Time, Distance & Temperature)
Speaker Delay
0–21ms
Delay
0–682ms
Delay: @ 96kHz Sampling Rate (Input Time, Distance & Temperature)
Speaker Delay
0–10.6ms
Delay
0–341ms
Audio Metering Tool
Range
-60dBu to +20dBu
Increments
1dB
Peak Hold Indicator
Yes
Signal Generator Tool: Pink noise, White noise, Sine wave
Signal Level
Off, -50dBu to +20dBu
Sine Wave Frequency
20Hz–12kHz
Matrix Mixer
Gain (0.5dB increments)
Off, -50 to +12dB
Mute
Per channel
Auto-mixer Enabled
Per channel
Global Auto-mixer Response
0.01sec to 2sec
Enable Ducking at Mixer
Yes
Ducking LED
Per channel, if enabled
Metering
Level, auto-mixer level
Processors
Input A/D, Output D/A
24 bit
DSP Processors
32-bit floating point
Sample Rates
48kHz, 96kHz
Propagation Delay @ 48kHz:
1.42ms
Propagation Delay @ 96kHz:
0.71ms
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Protea is compatible with Microsoft® Windows 8, 7 (Vista/XP) 32 & 64 bit systems.
