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ne 4250
ne 8250
ne 4250.25
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ne 8250.10
Network Enabled
Multi Channel Power Amplifiers
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.com
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Operating Manual - NE Multi Channel Power Amplifiers Table Of Contents 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 THE NE MULTICHANNEL AMP SERIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Operating Manual - NE Multi Channel Power Amplifiers CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS APPlIANCE TO RAIN OR MOISTURE. TO REDUCE THE RISK OF FIRE, REPLACE ONLY WITH SAME TYPE FUSE. REFER REPLACEMENT TO QUALI- FIED SERVICE PERSONNEL. WARNING: THIS
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Operating Manual - NE Multi Channel Power Amplifiers 1. INTRODUCTION Thank you for your purchase of this NE (network enabled) multi channel power amplifier. The NE power ampli- fiers combine lightweight, state of the art, high efficiency switching technology with integrated Ethernet control, and use optional modular expansion cards to provide comprehensive internal DSP processing, AES/EBU input, and networked digital audio (Cobranet) input. Please read the entire manual to fully understand th
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Operating Manual - NE Multi Channel Power Amplifiers ne4250.70 - Four Channels, 70 volt output, 250W per channel ne8250.70 - Eight Channels, 70 volt output, 250W per channel ne4250.10 - Four Channels, 100 volt output, 250W per channel ne8250.10 - Eight Channels, 100 volt output, 250W per channel The basic NE multichannel amplifiers come in either four channel or eight channel configurations with Euroblock input connectors. Output connectors are also Euroblock. Standard features on all models i
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Operating Manual - NE Multi Channel Power Amplifiers Physical Description Each model in the NE Multichannel series is 2RU, and weighs 22 pounds (10kg) or less. The model number is indicated in the lower left corner of the front panel. Amplifier Front Panel 1. Mounting Holes – For rack mounting. ne 2. Power Switch – Switches the unit on or off. Note: The power switch can be disabled from Protea Software 3. Status LEDs – Indicate status of: Power, Standby, Protect, Power Switch Disable, and C
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Operating Manual - NE Multi Channel Power Amplifiers Amplifier Rear Panel 1. Optional Cobranet Card CNM-2 – Installation of this option allows this amplifier to be part of a Cobranet audio network. 2. Optional AES/EBU Input or MIC Input - Installation of this option allows for AES/EBU or MIC inputs. ne 3. Ethernet Port - This offers ethernet control and monitoring of amplifier functions using Protea software. 4. Input Connector - This is used for a three wire (G, +, -) balanced input, and uses
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Operating Manual - NE Multi Channel Power Amplifiers 4. REMOTE AMPLIFIER CONTROL ON/OFF/Remote Standby The NE multichannel amplifiers have three possible states, OFF, ON, and STANDBY, each with a status LED on the front panel. Control for these three states is managed by the following: 1) Power Switch - When the power switch is turned off the amplifier is completely off, UNLESS the power switch ne has been disabled from within Protea software, in which case the power switch on the amplifie
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Operating Manual - NE Multi Channel Power Amplifiers The WR-5 is a microprocessor based remote control unit which can be used with the NE multi- channel amplifiers. 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 ampli- fier, and adding more remotes is possible using an external power supply. Each of six buttons on the WR-5 can be programmed to engage one of the fol- lowing functions: 1) Preset recall 2) Preset scroll
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Operating Manual - NE Multi Channel Power Amplifiers ne 5. PROTEA SOFTWARE ne Protea software offers a comprehensive suite of tools for controlling Ashly NE multichannel amplifiers as well as other Ashly products. The standard NE multichannel amplifiers allow for ethernet control and monitoring of power functions, level, mute, and polarity. With the DSP option installed, software control and monitoring of major audio functions can be custom configured on a per channel basis, as well as thro
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Operating Manual - NE Multi Channel Power Amplifiers The Amplifier Control Surface 4) Offset link group - Up to eight groups are available for the purpose of linking similar function parameters across multiple channels. In addition to the control surface secondary level control (not the main fader), most DSP functions have a link group check box in their work window to assign a specific parameter to one of the eight link groups if desired. Link groups can be renamed by clicking on any group
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Operating Manual - NE Multi Channel Power Amplifiers The DSP Window ne Extensive online help information is available for all DSP blocks. Look in the Protea Software Help Menu/ Contents and Index/Contents/Protea NE Products/PE Multichannel Amplifiers/DSP Control for details of all DSP func- tions. The key features include: 1) Input Channel Number - Right click on this to bring up Clear, Copy, Link, and Sub Preset functions for that input channel. 2) Input Channel Name - The user can name eac
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Operating Manual - NE Multi Channel Power Amplifiers 4) Pluggable Input DSP Tools - Six boxes are available for custom configuration of pluggable DSP processing blocks. Available DSP blocks include Dynamics controls, Gain functions, Graphic and Parametric EQ, Cross over functions, Delay, Metering, and a signal generator. 5) Input/Output Matrix Router - Any input can be routed to any or all outputs. Click and drag from the input to output to assign routing. To delete a route, right click on
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Operating Manual - NE Multi Channel Power Amplifiers DSP Specifications 2, 4, 6, or 10 Band Parametric Input: . . . . . . . . . . . . . . . Active Balanced, 10 kohms Filter Types Max Input Level: . . . . . . +21 dBu Parametric: Dynamics Frequency: . . . . . . . . . . . 20-20kHz Brick Wall Limiter Level: . . . . . . . . . . . . . . . -30dB to +15dB Threshold: . . . . . . . . . . . -20dBu to +20dBu Q Value: . . . . . . . . . . . . . 0.016oct to 4oct Ratio: . . . . . . . . . . . . . . . infinite At
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Operating Manual - NE Multi Channel Power Amplifiers Linking All functions can be linked to 1 of 8 link groups Processors Input A/D: . . . . . . . . . . . . 24 bit (Burr Brown PCM4204) Output D/A: . . . . . . . . . . 24 bit (Burr Brown PCM4104) DSP Processors: . . . . . . 32-bit floating point (Sharc ADSP-21262) Sample Rates: . . . . . . . . . 48kHz, 96kHz Propagation Delay @ 48kHz: . . . 1.42 ms Propagation Delay @ 96kHz: . . . 0.71 ms AES/EBU Digital Audio Input Type: . . . . . . . . . . . . .
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Operating Manual - NE Multi Channel Power Amplifiers 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 © 2008 by Ashly Audio Corporation. All rights reserved worldwide. Printed in USA 0308 R2
