ne 4250 ne 8250 ne 4250.25 ne 8250.25 ne 4250.70 ne 8250.70 ne 4250.10 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.
Operating Manual - NE Multi Channel Power Amplifier Important Safety Instructions Consignes de sécurité à lire atten- 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 - NE Multi Channel Power Amplifier Table Of Contents 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 THE NE MULTICHANNEL Overview . . . . . . . . . . . . . Protection . . . . . . . . . . . . Physical Description . . . . . Front Panel Features . . . . .
Operating Manual - NE Multi Channel Power Amplifier 1. INTRODUCTION Thank you for your purchase of this NE (network enabled) multi channel power amplifier. The NE power amplifiers 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.
Operating Manual - NE Multi Channel Power Amplifier The basic NE multichannel amplifiers come in either four channel or eight channel configurations, with Euroblock input connectors standard or optional XLR connectors. Output connectors are Euroblock only.
Operating Manual - NE Multi Channel Power Amplifier 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. 2. Power Switch – Switches the unit on or off. Note: The power switch can be disabled from Proteane Software 3. Status LEDs – Indicate status of: Power, Standby, Protect, Power Switch Disable, and Comm activity 4.
Operating Manual - NE Multi Channel Power Amplifier 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 or MIC Input - This slot allows for installation of an AES/EBU digital input or MIC input. 3. Ethernet Port - This jack offers ethernet control and monitoring of basic amplifier functions using Proteane software. 4. Input Connector - This is used for a three wire (G, +, -) balanced input.
Operating Manual - NE Multi Channel Power Amplifier 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.
Operating Manual - NE Multi Channel Power Amplifier WR-1 Remote Level Control - The WR-1 is a dual potentiometer remote volume control designed to fit in a standard wall electrical box, and is wired to the amplifier (with or without DSP installed) back panel Euroblock connector labeled “Remote Level Control” using four conductor wire.
Operating Manual - NE Multi Channel Power Amplifier RD-8C or RW-8C Remote Control - The RD-8C and RW-8C are remote level controllers which are connected to the amplifier’s Data Port, and are phantom powered from the amplifier. They can only be used in NE amplifiers which have DSP installed, and are used in conjunction with the “Remote Gain” pluggable DSP tool placed in an input or output in software. Maximum cable length is 1000 ft using #24 gauge twisted pair.
Operating Manual - NE Multi Channel Power Amplifier using Ethernet instead of the Data Port to communicate with the amplifier. 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. If PoE is unavailable, the Ashly RPS-18 (sold separately) is a 15-48VDC power supply capable of at least 2 watts per neWR-5 and can be hard wired to the back of the neWR-5. PoE current draw is 38mA @48VDC and 80mA@15VDC.
Operating Manual - NE Multi Channel Power Amplifier The base amplifier comes with software provisions for an audio control surface, password protected security functions, and network property management. Furthermore, Link Group Configuration and Power On Delay are set up under the Device Options menu tab. In addition, provisions for implementing DSP modes, AES/EBU Inputs, and Cobranet inputs are made available, presuming the necessary hardware has been installed in the amplifier.
Operating Manual - NE Multi Channel Power Amplifier side, with a cross linking matrix mixer in between. Key features of the DSP window include: Input Channel Number - Right click on this to bring up Clear, Copy/Paste, Link, and Sub Preset for that input channel. Input Channel Name - The user can name each input channel. Input Mute Button - Mutes the input. Pluggable DSP Tools - Six blocks are available on both inputs and outputs for custom configuration of pluggable DSP processing blocks.
Operating Manual - NE Multi Channel Power Amplifier 6. SPECIFICATIONS General Power Amplifier Specifications Base Model 0dBu = 0.775V rms 4250 8250 120VAC 230VAC 120VAC 230VAC Continuous Average Power Output Per Channel Low Z models, Stereo Mode, all channels driven 8Ω, 20Hz-20kHz 1%THD . . . . . . . . . . . . . . . . . . 150W 4Ω, 20Hz-20kHz 1%THD . . . . . . . . . . . . . . . . . . 250W Low Z models, Bridge Mode, all channels driven 8Ω, 20Hz-20kHz 1%THD . . . . . . . . . . . . . . . . . .
Operating Manual - NE Multi Channel Power Amplifier DSP Specifications Input: . . . . . . . . . . . . . . . . . . Active Balanced, 10 kohms Max Input Level: . . . . . . . . . +21 dBu Dynamics Brick Wall Limiter Threshold: . . . . . . . . . . . . . . . -20dBu to +20dBu Ratio: . . . . . . . . . . . . . . . . . . . infinite Attack: . . . . . . . . . . . . . . . . . . 0.2ms/dB to 50 ms/dB Release: . . . . . . . . . . . . . . . . . 5ms/dB to 1000ms/dB Compressor Threshold: . . . . . . . . . . . . . . .
Operating Manual - NE Multi Channel Power Amplifier 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. ASHLY AUDIO INC.
