Architects Specifications

Protea System II 4.24G Four Channel Digital Graphic Equalizer	TECHNICAL NOTES & SPECIFICATIONS

Protea System II 4.24G

The programmable graphic equalizer shall consist of four independent channels of 24 bit digital graphic equalization. Each channel shall consist of 28 bands cen- tered on standard ISO frequencies at intervals of 1/3 octave and covering a frequen- cy range of 31Hz to 16kHz. Frequency bands shall be activated by individual up and down tactile switches. The range of equalization per band shall be ±15dB in 0.5dB increments. The equalizer shall have a gain of unity with all bands set at zero, and shall have a maximum in/out level of +20dBu. Frequency response shall be ±.25dB 20Hz to20kHz. 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 balanced. Output impedance shall be 200 ohms. Inputs and outputs shall be balanced type on XLR and 1/4" phone jacks. Individual filters shall be of a constant Q reciprocal filter design. Boost and cut characteristics shall be fully symmetrical. The equalizer shall also include on each channel a 24dB per octave high pass filter adjustable from 20Hz to 10.6KHz, a 24dB per octave low pass filter adjustable from 33Hz to 20KHz, a full function, pre/post switchable compressor/limiter with adjustable threshold, ratio, attack and release controls, and a time delay capable of a maxi- mum of 1.364 seconds adjustable in 20us increments. A 240 X 64 fluorescent back-

lit LCD display will show all parameter, function and utility information. LED indicators shall show signal present and mute conditions. Channel gain shall be adjustable over a range of +6dB to - infinity in 0.5db increments. Control of the unit shall be from the front panel, via the optional 4.24RD remote control, via RS- 232 serial port using Ashly Protea System Software, or via MIDI. The equalizer shall weigh 14 lbs net and mount in a standard 19" rack using 2 spaces (3.5" high). The power requirement shall be 90-125VAC (180-250VAC, switchable), 50-60Hz, 30W. The unit shall be an Ashly Audio Protea System II 4.24G.

The optional remote controller shall operate all functions of the Protea unit using push-buttons and shall be phantom powered from the Protea unit so that no batteries or AC line cords are needed while controlling the Protea unit. Connections between the controller and Protea unit shall be accomplished using standard XLR mic cables. A 240 X 64 fluorescent backlit LCD display shall show all parameter, function and utility information. LED indicators shall show channel and mute conditions. The remote controller shall have a low profile for desk-top operation. The remote controller shall be the model Protea System II 4.24RD.

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

Balanced XLR and 1/4 Inputs and Outputs

Intuitive User Interface

Large, 240 X 64 Fluorescent Backlit Display

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

Input and Output Metering

Password Protection of System Operation

5-Year Worry-Free Warranty

II 4.24G specifications

Ashly II 4.24G is a powerful audio processing tool designed for professionals within the live sound, recording, and installation environments. This versatile digital audio processor is part of the Ashly product line, renowned for delivering high-quality sound reinforcement solutions.

One of the main features of the Ashly II 4.24G is its comprehensive processing capabilities. It boasts four input channels, each equipped with a plethora of adjustable parameters. Users can access advanced equalization options, such as 10-band graphic EQ and parametric EQ, providing precise control over frequency response. Additionally, the unit allows for dynamic processing including compression, limiting, and expansion, ensuring that sound levels are balanced and consistent.

The Ashly II 4.24G utilizes state-of-the-art digital signal processing (DSP) technology. This ensures low latency and high fidelity, essential for live performances where timing and clarity are critical. The unit supports 24-bit resolution and a sampling rate of up to 96 kHz, facilitating pristine audio quality while minimizing signal degradation.

One of the standout characteristics of the Ashly II 4.24G is its user-friendly interface. It features a bright, easy-to-read LCD screen, combined with intuitive navigation buttons that allow for quick adjustments in various settings. The device also supports remote control via Ashly's dedicated software, enabling users to manage the system from their laptops or tablets, significantly enhancing flexibility during setups and performances.

In terms of connectivity, the Ashly II 4.24G offers a range of options. It features both analog and digital input and output connections, allowing for seamless integration into diverse audio systems. Networking capabilities also allow for multiple units to be interconnected, providing a scalable solution for larger setups.

Durability is another important aspect of the Ashly II 4.24G. Built with a rugged metal chassis, this device is designed to withstand the rigors of travel and stage use, ensuring long-term reliability. Additionally, the device is equipped with internal power supplies, further reducing the potential for failure during performances.

In conclusion, the Ashly II 4.24G combines advanced DSP technology, user-friendly design, and robust construction, making it a preferred choice for audio professionals looking for a reliable and high-performance audio processing unit.