SPECIFICATIONS

Protea 4.24C Speaker Processor

Input: Active Balanced, 18 Kohms
Max. Input Level: +20 dBu
Output: Active Balanced, 100 ohms
Max. Output Level: +20 dBu
Frequency Response: 20 Hz-20KHz, ±0.25 dB
THD: <0.01% @1 KHz, +20 dBu
Dynamic Range: >110 dB (20 Hz-20 kHz) unweighted
Output Noise: <-90 dBu unweighted

Eq Filters:
Number: 6 per Input, 4 per Output Selectable
As:
Parametric
Bandwidth: 1/64th Octave to 4 Octave
Range: +15/-30dB, 0.1 dB increments
Resolution: 1/24th Octave
High-Shelf
Slope: Selectable 6 or 12dB/Octave (1 High
Shelf, 2 High Shelf)
Frequency Range: 19.7Hz to 2KHz
Range: +/-15dB, 0.1dB increments
Low-Shelf
Slope: Selectable 6 or 12dB/Octave (1 Low
Shelf, 2 Low Shelf)
Frequency Range: 3.1886KHz to 20.1587KHz
Range: +/-15 dB, 0.1dB increments

Crossover Filters:
High Pass Filter
Type: Linkwitz-Riley, Bessel, Butterworth
Slope: 12, 18, 24 and 48dB/Octave
Frequency Range: Off to 21.983.3KHz, 1/24 Octave
Low Pass Filter
Type: Linkwitz-Riley, Bessel, Butterworth
Slope: 12, 18, 24 and 48dB/Octave
Frequency Range: Off to 21.983.3KHz, 245 step
Increments

Delay:
Input Maximum Delay: 682.5ms
Output Maximum Delay: 21.33ms
Increment: 20_s
INPUT And OUTPUT GAIN:
Range: +12/-40dB, 0.1dB increments

Polarity
0 or 180 degrees (selectable in the Output Gain Stage)

Compressor/Limiter:
Threshold: -20dBu to +20 dBu, 1.0dB increments
Ratio: 1.2 :1 to Infinity (, Infinite:1)
Attack: 0.5 ms to 50 ms per dB
Release: 10 ms to 1 sec. per dB

Processor:
Input A To D: 24 bit
Output D To A: 24 bit
Processor: 24 bit, 56 bit accumulator
Sample Rate: 48 kHz
Propagation Delay: 1.46 ms

Other:
SIGNAL AND CLIP Leds: Inputs: -20/Mute, -10, 0, +10, Clip
(dBU or VU); Outputs: -20/Mute, -10, 0, Limit; Threshold, Clip (dBu or VU)
Rs232 Cable Distance: 1300ft (Max)
Midi Cable Distance: 500ft (Max)
Power Requirements: 80 - 260VAC, 30W max
Shipping Weight: 10lbs
Dimensions: 19.0L x 1.75H x 6.0D
I/O Connectors: XLR
Environmental: 40-120 deg. F, noncondensing
Notes: 0dBu = 0.775V RMS

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