ne24.24M 24 Bit Digital Multiple Channel Matrix Processor 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 - ne24.24M Matrix Processor Important Safety Instructions Consignes de sécurité à lire attentivement The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
Operating Manual - ne24.24M Matrix Processor Table Of Contents 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Manual - ne24.24M Matrix Processor 1. INTRODUCTION Thank you for your purchase of the Protea ne24.24M. The Protea ne24.24M Matrix Processor uses modular expansion cards to provide up to twenty-four channels of audio matrixing and processing, along with provisions for remote control and logic output. The base unit offers a four-input/four-output configuration.
Operating Manual - ne24.24M Matrix Processor 4. FRONT PANEL FEATURES 4.1 RS-232 Dataport The ne24.24M has two RS-232 dataports wired in parallel, one on the front panel and one on the back, for connecting to non-ethernet control hardware. Protea NE Software does not work over RS-232. 4.2 Com LED This green LED lights for a few seconds whenever there is communication activity to the unit from a host PC. It is also used to respond to an "identify device" command from NE software. 4.
Operating Manual - ne24.24M Matrix Processor 5. REAR PANEL FEATURES 5.1 Input Connections Balanced input signals are connected to the ne24.24M using the included euroblock connector. A flat blade screwdriver is required to connect a stripped wire lead to the external connector piece, 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 - ne24.24M Matrix Processor To use contact closure switching, up to eight presets (1-8) must first be defined according to the needs of the installation. To use the mic input “Push To Talk” feature, select the “Push To Talk Mic” checkbox in the Protea NE Software’s mic preamp dialog box and assign it a logic input pin. The preset recall feature for that contact closure is then deactivated. Switches are to be configured so that closing the switch contact triggers the preset recall event.
Operating Manual - ne24.24M Matrix Processor 5.9 Factory Reset Switch 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 ne24.24M is accomplished by pressing and holding a recessed switch on the back panel during power up. The switch is found in a small hole labelled “Reset”. There is a 10 second countdown in the front panel LED display to indicate a factory reset is about to occur.
Operating Manual - ne24.24M Matrix Processor 4.) Follow the instructions in the above drawing for installing expansion modules. Ashly recommends placing input expansion modules starting with EXP1, and placing output expansion modules starting from EXP 4 and working backwards. This way input and output channels are continuously numbered up from channel 1. 6.) In some cases it may be necessary to remove an existing expansion card before installing a new adjacent one.
Operating Manual - ne24.24M Matrix Processor 8. AUDIO FUNCTIONS 8.1 Input 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 ne24.24M 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.
Operating Manual - ne24.24M Matrix Processor be crystal clear sound directly in front of any one loudspeaker can be unintelligible at the farther reaches of the venue with direct line-of-sound to multiple loudspeaker sources. The solution is to delay the audio signal to the loudspeakers located further away from the primary source, so that sound comes out of the distant loudspeakers at the exact time that sound from the main loudspeakers arrives. Within the Protea ne24.
Operating Manual - ne24.24M Matrix Processor Protea ne24.24M parametric filters have a boost/cut range of +15dB to -30dB. There is more cut than boost because one of the more common uses for parametric filters is to dramatically cut, or “notch out”, very narrow frequencies (low bandwidth) in order to eliminate system feedback problems. Every parametric EQ filter has a center frequency. The factory default is 1kHz, but each filter is adjustable from 20Hz to 20kHz in 1Hz steps.
Operating Manual - ne24.24M Matrix Processor used in conjunction with gain change rate, and is defined as the time after the input signal falls below the threshold during which the autoleveler’s gain is held constant before it returns to unity gain. The purpose is to reduce the amount of gain “chatter” and abrupt signal cutoff when the input signal is hovering around the threshold level.
Operating Manual - ne24.24M Matrix Processor Output Functions 8.2 Output Audio Functions The following functions are available on all outputs: Mixer, High Pass/Low Pass Filter, Delay, EQ, Gain, Limiter, and Mute. 8.2a Output Matrix Mixer (Input 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.
Operating Manual - ne24.24M Matrix Processor 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 - ne24.24M Matrix Processor 8.2d Output EQ The Protea ne24.24M Output EQ section is the same as the input EQ, with the exception of the ability to view the combined effect of input EQ for each installed and linked input channel to a given output channel. Within the output EQ frame, each installed and linked input channel has its own check box, through which the interaction between input and output EQ is displayed. 8.
Operating Manual - ne24.24M Matrix Processor 8.2h Output Mute Output Mute turns off an output channel. When an output channel is muted, that channel’s red mute LED on the face panel is lit. To mute or unmute all outputs at once, go to the menu heading. 9. OTHER SOFTWARE FUNCTIONS 9.1 Device Options Flash Reprogram The NE processor firmware (the internal program that runs the unit) can be updated/reprogrammed via the Ethernet control connection.
Operating Manual - ne24.24M Matrix Processor store in a convenient place for future reference. If the password is forgotten, a limited password reset can be done by pressing and holding the factory reset switch for two seconds during power up. Note: Holding the reset switch for a full 10 seconds during power up will perform a full factory reset, changing all presets to the factory default. 9.5 Metering Separate software tabs allow for input/output metering in dBu, as well as dynamics metering in dB.
Operating Manual - ne24.24M Matrix Processor 10.2 WR-1.5 Volume Control and Preset Recall The WR-1.5 combines the level control capability of the WR-1 and the preset recall capability of the WR-2. A single potentiometer and a four position rotary switch offer independent control of level and preset recall. Remote Level Control - The WR-1.5 connects to the "0-5V Remote Level Control" pins as shown for the WR-1.
Operating Manual - ne24.24M Matrix Processor 10.4 WR-5 Programmable Zone Controller The WR-5 is a microprocessor based programmable remote control unit. Using Protea NE software, six function select buttons and two parameter adjust buttons are used to control a limited range of assigned functions within the WR-5's host ne24.24M. Up to four WR-5 units can be daisy-chained and phantom powered from one ne24.24M, and even more can be added using an in-line power supply adapter such as the Ashly RPS-18.
Operating Manual - ne24.24M Matrix Processor 10.5 neWR-5 Networked Programmable Zone Controller The neWR-5 remote control is a networked version of the WR-5, using Ethernet instead of the Data Port to communicate with the ne24.24M. Connecting and powering the neWR-5 is done using Cat-5 Ethernet cable and an IEEE 802.3af Power over Ethernet (PoE) switch, hub, or in-line PoE injector.
Operating Manual - ne24.24M Matrix Processor 10.7 FR-8 and FR-16 Networked Programmable Fader Controllers The FR-8 and FR-16 are Ethernet based remote controllers for all Ashly NE products with DSP capabilities. Each fader and it’s push button LED can be programmed to adjust the signal level for one input or output or group, select input source, or mute the signal.
Operating Manual - ne24.24M Matrix Processor 11. GPO LOGIC OUTPUT A GPO (General Purpose Output) card can be installed as an option in any one of the four expansion slots, providing current limited 12V logic outputs for control of 12V or 5V external devices. Once the expansion module is installed, the software displays a Logic Output tab where each pin's logic function is defined. Logic outputs will issue either a logic high level (+12VDC at 10mA) or logic low level (0VDC).
Operating Manual - ne24.24M Matrix Processor 13. SPECIFICATIONS INPUT . . . . . . . . . . . . . . . . . . Active Balanced, 18k Ohm Max Input Level: . . . . . . . . . . . +20 dBu Input Gain Range: . . . . . . . . . . -50dB to +12dB, polarity select OUTPUT: . . . . . . . . . . . . . . . . Max Output Level: . . . . . . . . . Output Gain Range: . . . . . . . . Frequency Response: . . . . . . . THD: . . . . . . . . . . . . . . . . . . . . Dynamic Range: . . . . . . . . . . . Output Noise: . . . . . . . . . .
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Operating Manual - ne24.24M Matrix Processor 15. ASHLY AUDIO INC. LIMITED WARRANTY (USA ONLY) (Other countries please contact your respective distributor or dealer) For units purchased in the USA, warranty service for this unit shall be provided by ASHLY AUDIO, INC. in accordance with the following warranty statement: ASHLY AUDIO, INC. warrants to the owner of this product that it will be free from defects in workmanship and materials for a period of FIVE years from the original date of purchase.
Operating Manual - ne24.24M Matrix Processor ASHLY AUDIO INC. 847 Holt Road Webster, NY 14580-9103, USA Phone: (585) 872-0010 Fax: (585) 872-0739 Toll Free (800) 828-6308 ashly.com ©2014 by Ashly Audio Corporation, a division of Jam Industries Ltd. All rights reserved worldwide. All features, specifications, and graphical representations are subject to change or improvement without notice. Protea ne24.
