Ashly 4.24C manual Introduction, Unpacking, AC Power Requirements

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Operating Manual - PROTEA SYSTEM II 4.24C Crossover / System Processor

1. INTRODUCTION

Thank you for your purchase of this Ashly Protea 4.24C Digital Crossover/System Processor. The Protea SYSTEM II series builds on the tradition of quality and value which has earned Ashly its place as a market leader in crossovers, equalization, and signal processing.

Your new 4.24C is a four input/eight output digital signal processor capable of precise control of a broad range of audio functions. The front panel interface allows quick access to all control parameters by offering dedicated function buttons, eliminating the need for hidden sub-menus. For even faster set-ups and stronger visualization of Input/Output routing, EQ, and Filter curves, an RS- 232 PC port is provided for use with Windows™ Protea System Software. Full control is also avail- able via MIDI input and output jacks.

1.1 AUDIO FEATURES

The Protea 4.24C utilizes state of the art DSP technologies, beginning with 24 bit, 48kHz delta-sigma A/D converters with 128x oversampling. Digital processing includes Gain, Polarity Invert, Parametric EQ, Shelving Fil- ters, Time Delay, Crossover Functions, Compression, Limiting, and Signal Routing, all taking place in twin 120MHz Motorola DSP56362 high performance DSP processors. D/A conversion uses 24 bit delta-sigma converters with 128x oversampling. All inputs and outputs are precision balanced and RF protected using XLR connectors.

1.2 USER INTERFACE

Front Panel Interface: A backlit 2 x 20 character LCD displays channel and function settings. Dedicated buttons provide access to all audio functions and system tools. The display indicates the current preset number, then subsequently shows the selected input or output and its active control parameters. Five segment LED arrays on each input and output provide audio level information and mute status.

Protea System Software: The computer interface uses Ashly PROTEA SYSTEM SOFTWARE for Windows, which allows complete PC control of the 4.24C through an RS-232 serial port. Protea system software is supplied with each unit, or can be downloaded at no cost from the Ashly web site. Advantages of using the software include greater preset capacity, and a very intuitive visual representation of the audio routing and control process.

2. UNPACKING

As a part of our system of quality control, every Ashly product is carefully inspected before leaving the factory to ensure flawless appearance. After unpacking, please inspect for any physical damage. Save the shipping carton and all packing materials, as they were carefully designed to minimize the possibility of transportation damage should the unit again require packing and shipping. In the event that damage has occurred, immediately notify your dealer so that a written claim to cover the damages can be initiated. The right to any claim against a public carrier can be forfeited if the carrier is not notified promptly and if the shipping carton and packing materials are not available for inspection by the carrier. Save all packing materials until the claim has been settled.

3. AC POWER REQUIREMENTS

Note: The AC power switch for model 4.24C is on the back panel. The Protea 4.24C uses a universal input power supply which will accept any line voltage in the range of 80VAC to 260VAC, 50-60Hz, and is exceptionally resistant to voltage dips, or "brown outs". A standard IEC-320 grounded AC inlet is provided on the rear panel to accept the detachable power cord. Never remove the AC earth ground connection to the 4.24C. In the event of fuse failure, refer the product to a qualified service technician for fuse replacement, replacing only with the same type and rating fuse.

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Contents 4 C Bit Digital Crossover System Processor Operating Manual Table Of Contents This Apparatus Must be Earthed Introduction AC Power RequirementsUnpacking Front Panel Control Features Input Gain LCD Display Output Gain LCD DisplayEQ LCD Display Audio Functions 6a GainDelay LCD Display 6c DelayCrossover LCD Display 6d Crossover XoverBessel ButterworthLinkwitz-Riley Limiter LCD Display 6e LimitOther Functions 7a Recall7b Save 7c Copy7d Mute 7e UtilInterconnect Features 7f Factory ResetDBu/VU Meter Select Midi Channel Select Midi DumpMidi Connections RS-232 Data ConnectionsHow to get Protea System Software Installing Protea System SoftwareConnecting the 4.24C to a computer Protea System SoftwareTroubleshooting Audio Troubleshooting TipsSpecifications DelayCrossover LimiterDimensions Warranty InformationProtea 4.24C Installation Record 24C Preset Information Preset No. Preset NameUtility Settings Inputs Protea 4 C Block Diagram Outputs
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4.24C specifications

Ashly 4.24C is a versatile and powerful audio processor that has gained popularity among sound engineers and audio professionals for its robust features and innovative technology. Designed specifically for live sound reinforcement, installed sound systems, and broadcast applications, this digital signal processor stands out in a crowded market by combining flexibility, performance, and ease of use.

One of the key features of the Ashly 4.24C is its comprehensive digital signal processing capabilities. With 24 individual input channels and 24 outputs, the device supports extensive routing options, enabling audio engineers to manage complex setups with ease. The processor includes a 4-band parametric equalizer, compressor, limiter, and noise gate on every channel, allowing for precise sound tailoring. Additionally, the inclusion of 16 built-in presets makes it easy to switch between different audio settings in live sound environments.

The Ashly 4.24C utilizes cutting-edge technologies to achieve superior sound quality. D/A and A/D converters are of high fidelity, ensuring that the audio signals remain clear and detailed throughout the processing chain. The device also features 24-bit resolution at sample rates up to 96 kHz, ensuring that even the most demanding audio applications are handled with professional quality. This emphasis on audio fidelity is particularly important in live sound and broadcast applications, where every nuance of sound can significantly impact the overall experience.

Ease of use is another standout characteristic of the Ashly 4.24C. The unit comes equipped with a user-friendly interface that includes an intuitive touchscreen, which simplifies the navigation of its numerous controls and settings. This graphical interface allows for greater visual feedback, making it easier for sound engineers to make adjustments during performances or broadcasts without needing to memorize complex configurations.

In terms of connectivity, the Ashly 4.24C offers a variety of inputs and outputs, including analog XLR, digital AES/EBU, and even optional Dante networking capability for seamless integration into modern networked audio systems. This flexibility ensures that the processor can fit into various setups, from small venues to large concert halls.

Overall, the Ashly 4.24C combines advanced audio processing technology with user-centric design, making it an excellent choice for professionals seeking high-quality sound solutions. Its multitude of features and capabilities ensure it meets the demands of contemporary audio applications while maintaining an accessible and manageable interface for users.
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