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.

3.Ethernet Port - This offers ethernet control and monitoring of amplifier functions using Proteane software.

4.Input Connector - This is used for a three wire (G, +, -) balanced input, and uses two-piece

euroblock connectors.

5.Normal/Bridge Switch - This switches the channel pair to Bridge Mode

6.Euroblock Speaker Connectors - Used to connect the speakers

7.Remote Standby - These two contact closure pins are wired to a switch to remotely place the amp in standby.

8.Preset Recall - These four pins (and GND) can be wired to remote contact closure switches to recall up to four amplifier presets.

9.Data - These four pins can be wired to remote microprocessor based controllers such as the WR-5 or RD-8C.

10.Remote Level Control - These pins can be wired to remote potentiometers such as the WR-1 for level control of individual channels

11.AC Inlet - Used for the detachable AC cord.

WARNING: Do not remove or lift the mains connector ground.

Installation

Before connecting to mains power, make sure that the switches and wiring are all set to the configuration needed for your particular application. Failure to do so could result in damage to the unit or other components in your system. CAUTION: When mounting or connecting the amplifier, always disconnect it from the mains. Use four screws and washers when mounting the amplifier to the front rack rails. Rear support is also recommended, especially for mobile or touring use. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.

Requirements

NE-series multichannel amplifiers have specific physical, electrical and signal requirements for proper operation.

These requirements will vary de pending on your specific application, setup, and the settings on the amplifier. When

setting up and testing your system, please take special care to double check all connections and settings. Please refer to

the specifications section of this manual for specific input, output and other figures.

Constant Voltage Models (25V, 70V, and 100V) and High Pass Filters

The 25V, 70V, and 100V amplifiers include internal, factory installed High Pass Filter hardware. This allows for software selectable filters on each channel that prevent low frequency energy from saturating the core of low cost speaker tap transformers. Available settings are 80Hz (12dB/oct), 400Hz (6dB/oct), and OFF. The 400Hz setting is commonly used in paging systems with horn speakers. Note that with the HPF hardware installed, that amplifier can not have any of the optional AES/EBU input, MIC input, or DSP hardware.

The DSP option can be factory installed in lieu of the HPF hardware, with HPF frequencies set in software to any value from 20Hz to 20kHz with a slope of 12dB/oct to 48dB/oct and various response options. In order to have AES/ EBU capability in a constant voltage amplifier, the DSP option must be installed.

7

Page 7
Image 7
Ashly ne 8250.25, ne 4250.10p, ne 8250.10, ne 8250.70 manual Installation, Requirements

ne 8250.70, ne 8250.10, ne 8250.25, ne 8250, ne 4250.10p specifications

The Ashly NE series, particularly models NE 8250.25, NE 4250.10P, NE 8250.10, NE 8250.70, and NE 8250, are renowned for their exceptional performance in audio processing and amplification. These models are widely used in professional audio applications, making them a favorite choice among sound engineers and venue owners.

The NE 8250.25 model is notable for its powerful performance, featuring a 25-channel configuration that allows for diverse setups. It provides high-quality audio processing and amplification, delivering clarity and precision in sound reproduction. The integrated DSP technology offers advanced signal processing features such as equalization, crossover control, and delay settings, enabling users to fine-tune their audio output to meet specific requirements.

The NE 4250.10P model combines versatility and power, featuring a robust 10-channel configuration. This model is particularly suited for portable applications, providing easy integration with other audio equipment. Its lightweight design does not compromise on power, offering impressive output and quality in a compact unit. Built-in network control capabilities allow for remote management, ensuring that users can make adjustments on-the-fly during performances.

The NE 8250.10 model is designed for users who require a more extensive sound system. With ten high-performance output channels, this model supports large-scale installations, making it ideal for concert venues and auditoriums. Advanced thermal management ensures consistent performance, even during prolonged use, while its durable construction allows it to withstand the rigors of live events.

The NE 8250.70 model stands out with its focus on delivering high-efficiency power amplification. It features a 70V output option, making it suitable for large venue applications where long cable runs are necessary. This model ensures minimal signal loss, delivering pristine audio quality across extensive systems.

Lastly, the NE 8250 serves as a versatile hub for audio management, integrating all the features of its counterparts to provide comprehensive control over an audio system. Users benefit from enhanced connectivity options, including digital and analog inputs, facilitating easy integration into existing setups.

In summary, the Ashly NE series encapsulates innovative technologies and features that cater to the demands of modern audio applications. These models exemplify a commitment to sound quality, versatility, and ease of use, making them indispensable tools for audio professionals. Whether for live sound reinforcement, installed audio systems, or portable setups, the Ashly NE series remains a benchmark in the professional audio industry.