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Ashly 4.24D Specifications

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Protea System II 4.24D

The programmable digital distribution processor shall consist of four

inputs and eight outputs with the ability to assign any input to any

output. Each input channel shall include: a routing stage allowing the

user to assign the input to any or a combination of output(s), a gain

stage capable of +12dB boost and -40dB cut; six filter stages con-

figurable to be a parametric filter with a frequency range of 19.7Hz to

21.9KHz, 1/24th octave step and a +15dB boost, -40dB cut, or a 6 or

12dB/octave high or low shelf filter. Each output channel shall include:

a high pass/ low pass crossover filter stage with selectable slopes of 12,

18, 24 and 48dB per octave using Linkwitz-Riley, Bessel or Butterworth

filter configurations; four filter stages configurable to be a parametric

filter with a frequency range of (Off) and 19.7Hz to 21.9KHz, 1/24th

octave step and a +15dB boost, -40dB cut, or a 6 or 12dB/octave high

or low shelf filter; a delay stage with a maximum delay of 682.54ms;

a gain stage capable of +12dB boost and -40dB cut and the ability to

invert the phase; a full function compressor/limiter with a threshold

range of -20dBu to +20dBu. Each input and output shall have individual

mute capability. The programmable digital distribution processor shall

have a maximum in/out level of +20dBu. Frequency response shall be

±0.25dB 20Hz to 20kHz. Dynamic Range shall be greater than 110dB

(20-20KHz, unweighted) and SMPTE intermodulation distortion or THD

shall be less than 0.01% at 1KHz, +20dBu. Input impedance shall be

18K ohms active balanced. Output impedance shall be active balanced,

112 ohms. Inputs and outputs shall be balanced type on euroblock con-

nectors. LED indicators shall show signal present, limiter threshold, clip

and mute conditions. Full programming and control of the unit shall be

from the front or rear panel accessible RS-232 serial port using Ashly

Protea System Software, or via MIDI. There shall be 30 factory presets

that may be overwritten by the user and stored.

External recall of

up to eight scenes via contact closure shall be accessible

through a euroblock connector.

There shall also be a four lev-

els of password protected security lockout. The programmable digital

crossover shall weigh 9.0 lbs net and mount in a standard 19” rack

using 1 space (1.75” high). The power requirement shall be 80-260VAC,

50-60Hz, 30W. The unit shall be an Ashly Audio Protea System II 4.24D

Digital Distribution Processor.

Features:

• One Rack Space

• Four Inputs - Eight Outputs

• Inputs Assignable to Any Output

• Crossover, EQ, Delay and Limiter

Functions

• Linkwitz-Riley, Bessel and

Butterworth Filters

• 12, 18, 24 and 48dB/Octave Slopes

• Parametric EQ: Full Bandwidth,

1/64th to 4 Octave Range

• 682.54ms Output Delay

• Limiter on Each Output

• Programmable by PC or MIDI

• Individual Input and Output

Signal Present/Limiter

Threshold/Clip LEDs

• Balanced Inputs and Outputs

• Euroblock Audio Connections

• Contact Closure for External

Recall of 8 Scenes

• Password Protected System

Security

• Five Year Warranty

• Five Year Warranty

Technical Notes & Specifications

Protea System II 4.24D Digital Distribution Processor

Architects Speci cations