General Specifications

Input: Active Balanced, 18 kohms
Max Input Level: +20 dBu
Input Gain Range: -50dB to +12dB, selectable polarity
Output: Active Servo Balanced, 112 ohms
Max Output Level: +20 dBu
Output Gain Range: -50dB to +12dB, selectable polarity
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

Mic Preamp
Gain: 0dB, +40dB, +60dB
Phantom Power: +48VDC (9.6ma/input)
EIN: -128dBu, 20-20KHz, 50 ohm source

Eq Filters
Number: 15 per Input, 15 per Output
Selectable As:
Parametric
Bandwidth: 1/64th Octave to 4 Octave
Range: +15/-30dB, 0.1 dB increments
Frequency Resolution: 1Hz
Low-Shelf
Slope: Selectable 6 or 12dB/Octave
Frequency Range: 20Hz to 2KHz
Range: +/-15dB, 0.1dB increments
High-Shelf
Slope: Selectable 6 or 12dB/Octave
Frequency Range: 3.886KHz to 20KHz
Range: +/-15 dB, 0.1 dB increments
All-Pass
Type: Second-Order (-180 degrees)
Frequency Range: 20Hz to 20KHz

Crossover Filters
High Pass Filter
Type: Linkwitz-Riley, Bessel, Butterworth
Slope: 12, 18, 24 and 48dB/Octave
Frequency Range: Off to 20KHz, 1Hz increments
Low Pass Filter
Type: Linkwitz-Riley, Bessel, Butterworth
Slope: 12, 18, 24 and 48dB/Octave
Frequency Range: Off to 20KHz, 1Hz increments

Delay
Input Maximum Delay: 682.5ms
Increment: 20µs
Output Maximum Delay: 682.5ms
Increment: 20µs

Gate
Threshold: -80 to +20dBu, 1dBu increments
Floor: Off, -80 to 0dBu, 1dBu increments
Attack: .2, .5, 1, 2, 5, 10, 20, 50ms/dB
Release: 5, 10, 20 50, 100, 200, 500, 1000ms/dB

Autoleveler
Target Level: -40 to +20dBu, 1dBu increments
Ratio: 1.2:1, 1.5:1, 2:1, 3:1, 4:1, 6:1, 10:1
Hold Time: 0, 1, 2,3, 4, 5, 6Sec
Threshold Below Target: -30 to 0dB, 1dB increments
Gain Increase Rate: 5, 10, 20 50, 100, 200, 500, 1000ms/dB
Gain Decrease Rate: 5, 10, 20 50, 100, 200, 500, 1000ms/dB

Ducker
Trigger Threshold: -80 to +20dBu, 1dBu increments
Ducker Depth: Off, -30 to 0dBu, 1dBu increments
Ducker Release: 5, 10, 20 50, 100, 200, 500, 1000ms/dB

Cross Point Mixer
Gain: Inf., -50 to +12dB, 1dB increments with Mute

Compressor/Limiter
Threshold: -20dBu to +20dBu, 1dB increments
Ratio: 1.2 :1 to Infinity (1.2, 1.5, 2., 3, 4, 6, 10, 20, Infinite:1)
Atack: 0.5 ms to 50 ms per dB
Release: 10 ms to 1 sec. per dB

Processor
Input A/D: 24 bit
Output D/A: 24 bit
Processors: 24 bit signal, 48 bit filters, 56 bit accumulator
Sample Rate: 48 kHz
Propagation Delay: 1.46 ms

Other
Power Requirements: 90 - 240VAC, 40W
Shipping Weight: 13lbs (Maximum)
Dimensions: 19.0"L x 3.5"H x 8.5"D
Connections: Euroblock
Environmental: 40-120 deg. F, (4-49 deg, C) noncondensing

Architect Specifications

The base unit digital matrix processor shall consist of four inputs and four outputs with a dedicated DSP processor and A/D, D/A circuitry. All programming shall be accomplished using Protea System Software to be supplied with each device and a PC using a WindowsTM 95, 98, 2000/ XP, ME or NT platform. The installer shall have the ability expand the processor's input or output configuration by installing input or output module cards for a total of twenty-four audio channels with fifteen specific configurations. Each input or output card shall have its own DSP processor for all digital signal processing blocks and shall have their own A/D or D/A circuitry. The installer shall be allowed to expand the base unit's total inputs or outputs four channels at a time. The input and output cards shall be field installable without the need to replace or reprogram the device's firmware and shall automatically recognize the base unit's new configuration and display the new configuration upon power up. The 24.24M Matrix Processor's firmware shall be supported by flash making the device capable of field upgrades using Ashly Audio's Protea System Software.

Each input channel shall include fixed architecture processing blocks of Mic Preamp with +48V Phantom Power, Gain, Delay, fifteen EQ Filters, Gate, Autoleveler and Ducker. Inputs shall have the option to be configured to accommodate either mic or line levels. Each output channel processing block shall include fixed architecture processing blocks of a Cross Point Mixer, HPF/LPF, Delay, fifteen EQ Filters, Gain and Limiter. The cross point mixer in the output section shall allow for routing any input to any output at any level and mute any input at any output without affecting the true input configuration. Each input and output shall have individual mute capability.

The matrix processor shall have a maximum in/out level of +20dBu. Frequency response shall be ±.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 servo-balanced. Output impedance shall be active balanced, 112 ohms. Inputs and outputs shall be balanced type on euroblock connectors. LED indicators shall show signal level, clip, limit threshold and mute conditions. Full programming and control of the unit shall be via the front or rear panel accessible RS-232 serial ports using Ashly Protea System Software. There shall be 35 factory presets that may be programmed by the user and stored in the device's internal memory. The matrix device shall have separate rear panel euroblock connections providing remote control for DC voltage level, recall of presets via momentary or on/off switching and a data-in/dataout port. These remote ports shall be accessible for control from either dedicated remote controls or third party devices. There shall also be a three level security lockout feature. The digital matrix processor shall weigh 13 lbs net and mount in a standard 19" rack using 2 spaces (3.50" high). The power requirement shall be 90-240VAC, 50-60Hz, 40W. The unit shall be the Ashly Audio Protea System II 24.24M Matrix Processor.