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Operating Manual - NE Multi Channel Power Amplifier

8

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 has been 

disabled from software, in which case the power switch on the amplifier has no effect at all. If the power switch has been dis

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abled, the front panel DISABLE LED will be lit. 

Even if the AC power is removed, the amplifier’s internal memory will retain 

the <power switch disabled> status until changed again from software. Performing a factory reset will clear and restore all 

internal amplifier memory to original factory settings.

2) 

Remote Standby Contact Closure

 - When these two pins are wired to a switch and connected 

closed, the amp will go into standby mode, whereby the amp is active but in a reduced power state. 

For remote standby to work, the power switch must be turned on or on but disabled in software.

3) 

Software On/Standby

 - On/standby in software functions the same as the remote standby 

contact closure on the back panel. Clicking on STANDBY places the amp into standby mode. 

Software on/standby does not override the hardware Remote Standby, they both remain active.

4) 

Software Power Switch Enable/Disable

 - This feature disables the front panel power switch. If the power switch is disabled 

from software, the front panel DISABLE LED is lit. The power switch remains disabled until enabled again from software, even 

after the amp is unplugged from AC.

Preset Recall

The preset recall connections on the back panel allow different presets to be loaded from amplifier memory when one of the 

contacts is closed to the provided ground pin. Device presets are configured from software and can include gain settings, mute 

status, polarity, and DSP functions if the amp has DSP installed.

The NE amplifier stores up to 35 internal device presets. A device preset stores the most commonly used control data for that 

amplifier. 

A device preset (saved to amplifier) differs from a computer preset file in that a computer preset file stores 

all

 infor

-

mation associated with the amplifier and its software settings, while the device preset only stores the most commonly used and 

relevant audio settings.

 Changes to an individual preset can be saved to the amplifier in software using <Preset Options/Save 

Preset To Device>, or saved to a PC using <Preset Options/Save Preset To File>. Sub Presets (collections of DSP parameters 

individually selected from software) are saved in a similar fashion. Individual preset files use the extension (*.pne).

Loading a preset can be done using software, using preset recall contact closure connections on the back panel, using an Ashly 

programmable remote button controller, or using the Ashly Remote iPad

®

 app. Contact closure pins P1 through P4 load device 

presets 1-4 from the amplifier memory.

Caution: A new preset may have dramatically different settings capable of damaging sound system components. Be careful not 

to recall the wrong preset while the system is on.

Data Control

The data euroblock on the back of the amplifier is used for connecting an Ashly WR-5 programmable zone controller or RD-8C 

remote level controller. The data interface provides data and phantom power for these devices using four conductor bell wire.

Summary of Contents for Protea NE4250

Page 1: ...5 872 0739 www ashly com 2016 by Ashly Audio Corporation All rights reserved worldwide All Trademarks referred to herein are the property of their respective owners ne4250 ne4250 25 ne4250 70 ne4250 10 Operating Manual Network Enabled Multi Channel Power Amplifiers ne8250 ne8250 25 ne8250 70 ne8250 10 ...

Page 2: ... to rain or moisture does not operate normally or has been dropped 1 Lisez ces instructions 2 Conservez ces instructions 3 Observez les avertissements 4 Suivez ces instructions 5 Pour réduire le risque de feu ou la décharge électrique ne pas exposer cet appareil pour pleuvoir ou l humidité 6 Ne pas utiliser l appareil près de l eau 7 Le nettoyer à l aide d un tissus sec 8 Ne pas bloquer les ouvert...

Page 3: ...ote Standby 8 Preset Recall 8 WR 1 Remote Level Control 9 WR 2 Remote Preset Recall Switch 9 WR 1 5 Remote Level Control and Preset Switch 9 RD 8C and RW 8C Remote Fader Control 10 WR 5 Remote Programmable Button Control 10 neWR 5 Networked Remote Programmable Button Control 11 FR 8 and FR 16 Networked Programmable Fader Control 11 Ashly Remote App for iPad 11 5 Proteane SOFTWARE 12 Overview 12 Am...

Page 4: ...conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including interference that may cause undesired operation 2 UNPACKING As a part of our system of quality control every Ashly product is carefully inspected before leaving the factory to ensure flaw less appearance After unpacking please inspect for any physical damage Save the shipping c...

Page 5: ...the amplifier Using AES3 2 channels of digital audio are sent over a single mic cable maintaining a completely digital signal path until just before the power amplification stage 48kHz 96kHz data rates are supported AES3 can be installed with or without DSP 3 Network Audio Dante or CobraNet network audio modules can be factory installed with or without installed DSP Note that amplifiers without DS...

Page 6: ...nfirms that the amplifier output is delivered to a speaker load 9 Channel Attenuators These control the input signal level to the amplifier They can be disabled from software 10 Factory Reset To reset all internal configurations including passwords back to their original factory settings press and hold this recessed front panel momentary switch during power up until all channel LEDs are lit Upon r...

Page 7: ...c application setup and settings on the amplifier When setting up and testing your system please take special care to double check all connections and settings Refer to the specifications section of this manual for spe cific input output and other figures Constant Voltage Models 25V 70V and 100V and High Pass Filters Amplifiers that are factory configured as constant voltage models 25V 70V or 100V...

Page 8: ...fter the amp is unplugged from AC Preset Recall The preset recall connections on the back panel allow different presets to be loaded from amplifier memory when one of the contacts is closed to the provided ground pin Device presets are configured from software and can include gain settings mute status polarity and DSP functions if the amp has DSP installed The NE amplifier stores up to 35 internal...

Page 9: ... to the wiper Do not connect the WR 1 remote level control ground to any other external grounds WR 2 Remote Preset Recall Switches The WR 2 shownatright allowsselectionofoneoffourpresetsviainterlock ingpushbuttonswitches Eachpushbuttonswitchcanbeconnected to a Preset Recall Pin on the back panel of the amplifier The ter minal numbers correspond to the first 4 device presets stored in the amplifier...

Page 10: ...ora cover plate not included can be purchased at hardware stores to cover the WR 5 electrical box and satisfy the aesthetic needs of the installation The WR 5 is phantom powered from the amplifier Up to four different WR 5 remotes can be phantom powered from one amplifer and more can be added by purchasing an Ashly RPS 18 remote power supply WR 5 buttons are programmed from software after the WR 5...

Page 11: ...meters such as gain or preset number and are indicated by the LED display Without DSP installed in the amplifier neWR 5 functions are limited to preset recall and mute Note To use the neWR 5 as a remote level control a ne WR 5 Remote Gain tool must be placed in one of the DSP processing blocks of the channels s There is also a hard wired Lock Out feature on the neWR 5 where the closing of a switch...

Page 12: ...mplete amplifier and software settings whereas device presets are limited to commonly used functions Sub Presets Sub Presets are user defined groups of DSP functions within one channel or across multiple channels Sub Presets allow the user to instantly recall a pre determined set of DSP parameters to quickly address changing environmental conditions without the risk of making undesirable or irreco...

Page 13: ...ers FIR filter outputs only 4 Crossover functions Four Way Three Way and Two Way Crossovers are available on outputs only HPF and LPF filters are available on both inputs and outputs 5 Delay Speaker Delay at 48kHz sampling rate is 21mS and Delay is 682mS At 96kHz 10 6mS and 341ms 6 Metering 60dBu to 20dBu display 7 Signal Generator Pink noise White Noise Sine Wave from 20Hz to 12kHz Extensive onli...

Page 14: ... ohm load 10dB below rated power 0 5 Distortion THD N typical 8 ohm load 10dB below rated power 20Hz 20kHz 0 5 Frequency Response 20Hz 20kHz 1dB Damping Factor 8 ohm load 1kHz 250 Input Impedance 20K Ohm balanced Maximum Input Level 21dB Cooling temperature controlled fan cool air is drawn in from the sides and blown out the front Control Network Standard 100MB Ethernet Front Panel Indicators per ...

Page 15: ...etric Filter Types Parametric Frequency 20 20kHz Level 30dB to 15dB Q Value 0 016oct to 4oct Hi Low Shelf 6 12 dB Frequency 20Hz 20kHz Level 15dB to 15dB All Pass Frequency 20Hz 20kHz Variable Q HP LP Frequency 20Hz 20kHz Q Value 3 047 to 0 267 Notch Bandpass Frequency 20Hz 20kHz Q Value 92 436 to 0 267 Crossover 2 Way 3 Way 4 Way Crossover High Pass Low Pass Filters Filter Types Bessel 12 18 24 4...

Page 16: ...DSP or Network Audio 2 With Protea DSP 3 With Protea DSP and Network Audio or AES3 Input 4 With Network Audio or AES3 Input but Without DSP factory installed DAC converter required Remote Control Options Vary With Configuration DSP is Required for Most Programmable Remote Control Functions Protea NE Software Control Factory Options bypassed if not installed Protea DSP DSP Processing Load Impedance...

Page 17: ...efaced or removed ASHLYAUDIO INC reserves the right to make changes in design or make additions to or improvements upon this product without any obligation to install the same on products previously manufactured Any implied warranties which may arise under the operation of state law shall be effective only for FIVE years from the original date of purchase of the product ASHLY AUDIO INC shall be ob...

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Page 20: ... 585 872 0010 Fax 585 872 0739 Toll Free 800 828 6308 www ashly com Ashly Audio is a division of Jam Industries Ltd 2016 by Ashly Audio Inc All rights reserved worldwide All features specifications and graphical representations are subject to change or improvement without notice Printed in USA r11 0416 ...

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