Digital Audio Products 24.24M 24 Bit Digital Multiple Channel Matrix Processor WR-1, WR-2, WR-5 Remote Controls Operating Manual ASHLY AUDIO INC. 847 Holt Road Webster, NY 14580-9103 Phone: (585) 872-0010 Toll-Free: (800) 828-6308 Fax: (585) 872-0739 www.ashly.
Operating Manual - 24.24M Matrix Processor Table Of Contents 2 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 AC POWER REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 FRONT PANEL FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Manual - 24.24M Matrix Processor 10 OTHER SOFTWARE FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1 Channel Preset File Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2 Data Dump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.3 Copying Settings to Another Input or Output . . . . . . . . . . . . . . . . . . . . . . . . 10.4 Security . . . . . . . . . . . . . . . . . . . . . .
Operating Manual - 24.24M Matrix Processor 1. INTRODUCTION Thank you for your purchase of the Protea 24.24M. The Protea 24.24M Matrix Processor uses modular expansion cards to provide up to twenty-four channels of audio matrixing and processing. The base unit offers a four-input/fouroutput configuration. Each input and output expansion card has an individual DSP processor allowing you to expand the base unit’s total inputs or outputs four channels at a time.
Operating Manual - 24.24M Matrix Processor 4. FRONT PANEL FEATURES 4.1 RS-232 Dataport The 24.24M has two RS-232 dataports wired in parallel, one on the front panel and one on the back, for connecting to a computer for software control. See section 7.3 for details on connecting to a computer. 4.2 Device ID/Preset Number This LED and switch have two functions, to select and display the current 24.24M device ID (0-16), or to select and display a user-defined preset number (1-35).
Operating Manual - 24.24M Matrix Processor 5. REAR PANEL FEATURES 5.1 Input Connections Balanced input signals are connected to the 24.24M using the included "Euro Block" connector. A flat blade screwdriver is required to connect a stripped wire lead to the loose connector, which is then inserted into the rear panel Euro Block receptacle. It is important that both (+) and (-) inputs are properly terminated or signal loss and noise may result.
Operating Manual - 24.24M Matrix Processor can be used, with all switches sharing a common ground connection. The number below the nine pin Euro Block contact closure connector equals the number of the preset which will be recalled when that switch is closed. Always use the 24.24M contact closure ground for contact closure switches. Do not connect the 24.24M contact closure ground to any other external grounds, as ground loop currents may result. 5.
Operating Manual - 24.24M Matrix Processor 5 Expansion Card Assembly: 4 5 *See ESD Precautions First 1.) Plug ribbon cable into motherboard header 2.) Plug other end of ribbon cable into expansion slot 3.) Slide pcb fingers into slots on back of meter card 4.) Fit Euroblock connectors through back panel cut-outs 5.
Operating Manual - 24.24M Matrix Processor 7. PROTEA SYSTEM SOFTWARE Ashly offers a powerful software interface for the Windows PC environment, providing control for the 24.24M Matrix Processor, 4.24D distribution system processor, 4.24C crossover, 4.24G graphic EQ and slaves, two parametric EQ slaves (2.24P and 4.24P), and the VCM-88(E and C), high performance eight channel remote level controllers. Within Protea System Software, each device has its own separate visual interface.
Operating Manual - 24.24M Matrix Processor 7) Select desired Baud rate (9600bps or 38,400bps). Note that 38,400bps is only supported by the 24.24M. 8) Go to the menu and select . 9) The connection should now be established. If it isn't working, make sure the RS-232 switch on the back panel is out, and make sure the device channel (Channel 1-16) is the same on both the 24.24M and Protea System Software (see sec. 4.2.) If other Protea products are used with the 24.
Operating Manual - 24.24M Matrix Processor 9. AUDIO FUNCTIONS Editing of audio controls is done primarily in Protea System Software. Input and output expansion cards are autodetected, and the software automatically updates to display the current 24.24M status. Note: Accidental, potentially destructive loudspeaker damage can occur when abrupt changes are made to EQ, filter, or level controls, so plan carefully before making radical changes to a live sound system. 9.
Operating Manual - 24.24M Matrix Processor 9.1f Input EQ The Protea 24.24M input EQ section offers 15 custom filters per input. Types of filters available for each band include parametric, 1st order and 2nd order low shelf, 1st order and 2nd order high shelf, and all-pass. Shelving EQ filters: 1st order filters use a gentle 6dB per octave slope, while 2nd order filters use a 12dB per octave slope for a more pronounced boost or cut. All shelving filters have a boost/cut range of +/-15dB.
Operating Manual - 24.24M Matrix Processor of a signal. Parametric filters are best used to hunt down and eliminate problem feedback frequencies, add or remove a characteristic "hot spot" from microphones, or clean up room resonance situations. It is well worth the time becoming proficient with parametric EQ filters, as they offer the best solution to many EQ problems. Protea 24.24M parametric filters have a boost/cut range of +15dB to -30dB.
Operating Manual - 24.24M Matrix Processor In ADVANCED MODE, THRESHOLD BELOW TARGET determines the input signal level relative to the target level, above which the autoleveler increases gain, and below which no action is taken. RATIO is defined as the relationship of input level change in dB to output level change in dB. It is a measure of how aggressively the autoleveler changes the gain to maintain a constant output target level.
Operating Manual - 24.24M Matrix Processor 9.2 Output Audio Functions The following functions are available on all outputs: Mixer, High Pass/Low Pass Filter, Delay, EQ, Gain, Limiter, and Mute. 9.2a Output Matrix Mixer Output channels can have any or all inputs as sources, and the output matrix mixer allows the level of each connected input to be adjusted in the “matrix mix” to each output. Note that for a given output, unlinked inputs are disabled in the mixer. Adjustment range is from +12dB to off.
Operating Manual - 24.24M Matrix Processor ter type, 12dB, 18dB, 24dB, or 48dB per octave. The steeper the slope, the more abruptly the "edges" of the pass band will drop off. There is no best filter slope for every application, so experiment to see which one sounds most pleasing in a specific system. The Ashly default crossover filter is 24dB/octave Linkwitz-Riley, but of course they can be changed to suit the application.
Operating Manual - 24.24M Matrix Processor Using the location of the driver diaphragm farthest back as a reference point, measure the distance to other drivers in the cluster, and set the output delay for each accordingly, with the driver diaphragm closest to the front getting the longest delay and the driver at the very back getting no delay at all. The minimum adjustment is 0.02 milliseconds, or about 1/4 inch.
Operating Manual - 24.24M Matrix Processor 10. OTHER SOFTWARE FUNCTIONS 10.1 Channel Preset File Management The Protea 24.24M will store up to 35 named internal presets, each preset storing control data for all channels and audio functions. Preset names must be 20 characters or less. While working in Protea System Software, changes to an individual preset can be saved to the 24.24M using , or saved to the PC using .
Operating Manual - 24.24M Matrix Processor 10.5 Factory Reset Factory reset is used to clear all user defined preset names and control values and reset them to their original factory settings. Factory reset to the 24.24M is accomplished by pressing and holding a recessed switch on the back panel during power up. The recessed switch is between the AC inlet and the RS-232 switch. There is a 10 second countdown in the Device ID LED display to indicate a factory reset is about to occur.
Operating Manual - 24.24M Matrix Processor 11. REMOTE CONTROL Ashly makes three remote control options for the Protea 24.24M. All of them are designed to be installed in a standard wall mount electrical box using a standard cover plate. The WR-1 and WR-2 are passive controls which can adjust volume or select presets respectively, while the WR-5 (replaces WR-3 and WR-4) is an active control with user defined function buttons and LED display. Wall Remote Assembly (WR-1 Shown) 11.
Operating Manual - 24.24M Matrix Processor Level control is "attenuate only" meaning that the maximum setting of the control potentiometer (fully clockwise) results in 0 dB gain of the controlled channel. A label template can be found on the Ashly website for printing input or output channel names under control of the WR-1 and sliding the paper behind the mylar overlay windows.
11.3 WR-5 Programmable Zone Controller The WR-5 is a microprocessor based remote control unit for the Protea 24.24M. Like the WR-1 and WR-2, the WR-5 is designed to fit into a standard electrical wall box. Up to four WR-5 remotes can be phantom powered from one 24.24M, and adding more remotes is possible using an external power supply.
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Inputs Left / Center / Right Theater System • Three output expansion cards L 1 Mixing C Console Output R 2 processor for all speaker locations • Electrical box mounted remote LCR Inputs: - Ducked Signal Mic Input: - Ducking Input 4 LCR Outputs: - HPF / LPF - Alignment Delay - EQ - Limiter Dressing Room Paging Mic Dressing Room - Wall Mount Remote Level Control DC level controller for Dressing Rooms Inputs C HF MF LF R 7-9 HF MF LF AV Input Meeting Room 2 AV Input 5 6 7 8 9 10 11 12
13. TROUBLESHOOTING TIPS 13.1 Audio Problems 1) No power - Is the detachable AC cord fully plugged in? Is the rear panel power switch on? 2) Software controls don't work - Is the RS-232 cable properly installed to the PC? Is the software communications enabled? Is the software device set to 24.24M? Check the security level (section 10.4). If set to <24.24M Full Lock> then no changes are allowed, or if set to <24.24M Parameter Lock> then no changes can be made other than recalling new presets.
Operating Manual - 24.24M Matrix Processor 15. SPECIFICATIONS INPUT .............. Max Input Level: . . . . . . . Input Gain Range: . . . . . . . OUTPUT: . . . . . . . . . . . . . Max Output Level: . . . . . . Output Gain Range: . . . . . Frequency Response: . . . . THD: .............. Dynamic Range: . . . . . . . . .............. Output Noise: . . . . . . . . . . MIC PREAMP Gain: .............. Phantom Power: . . . . . . . . Equivalent Input Noise: . . EQ FILTERS Number: . . . . . . . . . . . . . .
Operating Manual - 24.24M Matrix Processor Protea 24.24M Input Functional Block Diagram Protea 24.24M Output Functional Block Diagram Protea 24.
Operating Manual - 24.24M Matrix Processor ASHLY AUDIO INC. 847 Holt Road Webster, NY 14580 Phone: (585) 872-0010 Fax: (585) 872-0739 Toll Free (800) 828-6308 www.ashly.com © 2007 by Ashly Audio Corporation. All rights reserved worldwide.
