Ashly 4.24C Operating Manual
  1. Manuals
  2. Brands
  3. Ashly Manuals
  4. Crossover
  5. PROTEA SYSTEM II 4.24C
  6. Operating manual

Ashly 4.24C Operating Manual

24 bit digital crossover and system processor
Hide thumbs Also See for 4.24C:
Table of Contents

Advertisement

Quick Links

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 4.24C and is the answer not in the manual?

Questions and answers

Related Manuals for Ashly 4.24C

Summary of Contents for Ashly 4.24C

  • Page 2: Table Of Contents

    Operating Manual - PROTEA SYSTEM II 4.24C Crossover / System Processor 1 INTRODUCTION ..........4 1.1 Audio Features .
  • Page 3 6.2 Installing Protea System Software........14 6.3 Connecting the 4.24C to a Computer ....... 14 7 TROUBLESHOOTING .

  • Page 4: Introduction

    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.

  • Page 5: Front Panel Control Features

    Any modifications made to that preset before saving it will remain in the working preset until either the modified preset is saved, or a fresh preset is recalled to the 4.24C. When modifications to an existing preset are made without saving, the display adds the text modified after the preset number.

  • Page 6: Audio Functions

    Operating Manual - PROTEA SYSTEM II 4.24C Crossover / System Processor 4.6 Audio Functions 4.6a Gain Input and Output Gain are separately adjustable from -40dB to +12dB in 0.1dB increments. The output gain menu also provides for selection of input...

  • Page 7: Delay

    For an excellent interactive display of the way parametric and shelving filters work, experiment with the 4.24C EQ section of Protea System Software. The software works whether a unit is connected or not, so it is an invaluable teaching tool as well as an audio setup tool for Protea products. The program is shipped with 4.24C units, but is also available on the Ashly web site.

  • Page 8: Crossover

    Note: Although delay in the 4.24C is adjusted only by time, the corresponding dis- tance in both feet and meters is always shown as well.
  • Page 9 Operating Manual - PROTEA SYSTEM II 4.24C Crossover / System Processor slope for every application, so experiment to see which one sounds most pleasing in a specific system. Ashly factory default presets use all 24dB/octave Linkwitz-Riley filters in the crossover section, but of course they can be changed to suit the application.

  • Page 10: Limit

    Threshold, Ratio, Attack Time, and Release Time. The 4.24C limiter threshold range is from -20dBu to +20dBu. This setting determines the signal level above which gain reduction begins, and is indicated by the yellow LED (Lim) in the output meter section. Increases in audio level above the threshold will be reduced according to the ratio settings.

  • Page 11: Save

    4.7d Mute The Protea 4.24C allows the user to mute both inputs and outputs. When muted, an input or output's red Mute LED is lit. When an input or output is selected, pressing the Mute button will toggle its mute function. To quickly mute all outputs, escape out to the top level preset display, then press the Mute button, pressing it a second time to confirm.

  • Page 12: Factory Reset

    MIDI Dump To quickly download all 30 presets on a 4.24C to another 4.24C using MIDI, or save to a PC using RS-232 and Protea System Software, select Dump from the Util menu, turn the data wheel to view the format choices, then select the desired format to transmit the data.

  • Page 13: Midi Connection

    Dataport) and looped to another unit(s) via both MIDI jacks (Data In/Out), then the RS-232 switch on the back panel must be pushed in. If the 4.24C is any other part of the MIDI chain, or stands alone, the RS-232 switch on the back panel should be left out.

  • Page 14: Protea System Software

    (back panel) need to be properly set. The Protea System Software MIDI channel assignment for the crossover must match that of the 4.24C, and the correct COM port must be set for the 9 pin Dsub serial port connector on the PC.

  • Page 15: Troubleshooting

    Excessive Noise - An input signal level or an input gain setting that is too low could require the loss to be made up for at the output gain stage, producing more noise than a properly set up gain structure. Do not use the 4.24C for dramatic increases in level, but rather optimize the signal source for a nominal 0dBu output.

  • Page 16: Specifications

    Environmental ..... 40°F - 120°F (4°C-49°C) Non-condensing 4.24C Weight ..... . 9 Lbs...

  • Page 17: Dimensions

    Operating Manual - PROTEA SYSTEM II 4.24C Crossover / System Processor 9. DIMENSIONS 10. WARRANTY INFORMATION The unit you have just purchased is protected by a limited five-year warranty . To establish the warranty, be sure to read completely, fill out and return the warranty card that came with your product. Fill out the information below for your records.

  • Page 18: Installation Record

    Operating Manual - PROTEA SYSTEM II 4.24C Crossover / System Processor 11. PROTEA 4.24C INSTALLATION RECORD Installation _________________________ Installed by _________________ Date _____________________________ Venue Contact ______________________ Phone No. __________________ Address __________________________ Description of System ______________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ 4.24C Preset Information: __________________________ Preset No. ________ Preset Name _________________...
  • Page 19 Security On/Off _________________ Password __________________ dBu/VU Meter Scale ____________ MIDI Channel Assigned ___________ Protea System Software Filename* ____________________________________________________________________________________________ *Protea System Software can print out the complete settings of the currently loaded preset. Upload 4.24C presets to a PC using MIDI Dump via RS-232.

  • Page 20: Block Diagram

    Operating Manual - PROTEA SYSTEM II 4.24C Crossover / System Processor PROTEA 4.24C R-2 Printed in USA 5/03...

Table of Contents