ARK-20

Digital processors

The ARK-20 are digital processors specially designed for fixed installation, offering 3 different versions.

ARK 2048

ARK 2026

ARK 2024

Technical Data

Input 
 2 / 4
Impedance:20 K Ohm Balanced (10 K Ohm unbalanced).
Connector:Balanced XLR (pin 2 +)
AD converter:24 bit-192KHz, 512x Oversampling.
Dynamic Range:120 dB.
Max. level:+19 dBu (balanced).
Outputs 
 4 / 6 / 8
Impedance:50 Ohm Balanced (25 Ohm unbalanced).
Connector:Balanced XLR (pin 2 +).
DA converter:24 bit-192KHz, 512x Oversampling.
Dynamic Range:120 dB.
Max. level:+18 dBu (balanced).
Audio 
Frequency Range10 Hz – 24 KHz.
THD (%)<0,0018%
DSP ProcessInternal resolution with 56 bit double precision in floating point.
Converters24 bit resolution
Propagation Delay0.6 miliseconds
Equalisation 
Input GEQ29 GEQ Bands 1/3 oct.
PEQ outputP9 per way.
PEQ Type filtersParametric, Shelving High, Shelving Low, Low-Pass, High-Pass, Low-Pass Q variable, High-Pass Q variable, BandPass,Reject Band, AllPass order 1, AllPass order 2.Posibility to Link filters between Input and Outputs.
Crossover 
 Linkwitz Riley with 12, 24, 48 dB/oct.
 Butterworth and Bessel with 6, 12,18, 24, 30, 36, 42 and 48 dB/oct.
Delay 
Input54 milisec (channels A & B)
Output 20.8 milisec for Speaker alignment Possibility to Link Delays.
RMS Limiter-Compressor
 1 per output.
Threshold+18dBu to -50dBu.
Compression Ratio1:1 to 1:10 (1:infinite with limiter).
Power indicationShows the maximum power applied to the speaker for the selected threshold.
Noise Gate 
 1 per output
Noise Threshold-79dBu to -37dBu.
Level Control 
Gain+6dBu to -40 dBu per input / output.
Muteper input / output.
Phase inversionper input / output. Possibility to Link Controls.
Signal Generator 
Level0dBu to –40dBu
Typesine tone from 10Hz to 22KHz, Pink noise, White noise.
Security Options 
PasswordGlobal
Level 0:No restrictions
Level 1:Only allows preset changes.
Level 2:Only allows mute modification.
Level 3:Only allows preset changes and mute modification.
Level 4:Bloks all the front panel controls
Restricted Zones:For each Preset it is possible to disable the access to any processor function (EQ, crossover, Limiter, etc) writing a preset password.
Other functions 
 Process Integration with RAINBOW – The acoustical prediction software.
 Speaker data import from main audio measurement systems.
 Export & Import EQ files, etc.
Front Panel 
 DisplayLCD with 24 x 2 characters
 Encoders 1 with push button.
 Level MeterSignal and clip leds per input. Signal and Limiting leds per output
Communication 
 USB
 Ethernet (Optional)
General 
Power supply 85-240 V ~ 40-400 Hz. IEC connector. (Switching power supply, wide range)
Consumption25 W
Operating temperature-5º a 60º C (23º to 140º F)
Storage temperature-60º to 75º C (-76º to 167º F).
HumidityMax. 90% non-condensing.
Dimensions482 x 45 x 226 mm
Weight3 Kg
Warranty3 years

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