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Product 181038

Ashly Audio Protea 4.24GS 4-Channel Graphic EQ Sys Processor   

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The Ashly Proteo 4.24GS allows for the installation of multiple channel graphic equalizers where tamperproof, sound shaping equalization is required....Click To Read More About This Product

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Tamperproof security.

The Ashly Proteo 4.24GS allows for the installation of multiple channel graphic equalizers where tamperproof, sound shaping equalization is required. Easily control and program the 4.24GS from the 4.24G Main Unit, 4.24RD Remote Control, with a MIDI controller, or with Ashly's exclusive Protea System Software running on a PC. The Protea 4.24GS is housed in an all-steel, 2RU chassis, and has two independent channels of fully programmable 28-band graphic EQ with with limiter, high- and low-pass filter, and time delay functions.

Each channel allows for 28 bands of 1/3-octave, ISO centered, constant Q filters, ranging from 31Hz to 16kHz. High and low pass filters are 24dB/octave adjustable from 20Hz to 10.6kHz and 33Hz to 20kHz, respectively. Time delay is adjustable up to 1.364 seconds.

Other features include 24-bit A/D-D/A conversion, 24-bit/100MHz digital processing, RS-232, and MIDI interface, linkable channels, +6dB/-infinity master gain, and 128 preset locations. The 4.24GS displays individual channel numbers with 7-segment displays. Discrete LEDs indicate signal present and signal clip levels. Rear-panel connections include balanced XLR and 1/4" ins/outs for each channel, RS-232, MIDI In, Out/Thru, and Ashly's exclusive digital remote control protocol via two standard XLR connectors.

  • 24 Bit A/D ” D/A Audio Resolution
  • 24 Bit/100 MHz (x2) Digital Signal
  • Processing
  • Four 28-Band 1/3 Octave Channels of EQ
  • Programmable Compressor/Limiter
  • Programmable Delay up to 1.364 Seconds
  • Programmable High and Low Pass Filters
  • Control From 4.24G, 4.24RD, PC or MIDI
  • ¯ Contact Closure for External Recall of 6 Scenes
  • Balanced XLR and 1/4" Inputs and Outputs
  • Linkable Channels
  • Constant Q/Reciprocal Filter Design
  • ±15dB Boost and Cut, 0.5dB increments
  • 128 Preset Locations, 50 Scenes
  • RS-232 Computer Interface
  • Full MIDI Implementation

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Protea 4.24GS 4-Channel Graphic EQ Sys Processor

  • Input
    Type: Active Balanced
    Impedance: 18 K ohms
    Max. Level: +20dBu

    Type: Pseudo-Balanced
    Impedance: 200 ohms
    Max. Level: +20dBu

    Frequency Response: ±.25dB 20Hz-20kHz
    THD (20Hz-20kHz): : <.01% @ 1KHz, +20dBu
    Dynamic Range: >110dB (20Hz-20KHz) unweighted
    Output Noise: <-90dBu unweighted

    Type: Constant Q, Reciprocating
    Number: 4 X 28
    Filter Spacing: 1/3 Octave
    Range: ± 15dB, 0.5dB Increments
    Q: Fixed, 3.2

    Power Requirements: 90-125VAC, 50-60Hz, 30W, 180-250VAC 50-60Hz, 30W
    Shipping Weight: 14 lbs
    Dimensions: 19"L x 3.5"H x 8"D
    I/O Connectors: XLR, 1/4"
    Environmental: 40-120 deg. F Noncondensing

    Threshold: -20dBu to +20 dBu; 1dB increments
    Ratio: 1.2:1 to Infinity, (1.2:1, 1.5:1, 2:1, 3:1, 4:1, 6:1, 10:1, 20:1, inf:1)
    Attack: (0.5ms to 50ms per dB (.5, 1, 2, 5, 10, 20, 50ms)
    Release: 10ms to 1 sec per dB; 1.2:1, 1.5:1, 2:1, 3:1, 4:1, 6:1, 10:1, 20:1, inf:1) (10, 20, 50, 100, 200, 500ms, 1 Sec)

    HPF: 24dB/Octave
    Range: 20Hz to 10.6Khz

    LPF: 24dB/Octave
    Range: 33Hz to 20.1KHz

    Maximum Delay: 1.364 seconds
    Increment: 20us

    Input A to D: 24 Bit
    Output D to A: 24 Bit
    Processor: 24 Bit, 56 Bit Accumulator
    Sample Rate: 48KHz
    Propagation Delay: 1.46ms
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