Ashly ne8250c User manual

Advanced Simulation Technology inc.
500A Huntmar Park Drive
Herndon, Virginia 20170 USA
Tel. [phone] • Fax. [phone]
asti-usa.com
Advanced Simulation Technology inc.
500A Huntmar Park Drive, Herndon, Virginia 20170 USA
Revision B, Version 0 (July, 2019)
Ashly Amplifier User Guide
Document: DOC-HW-ASH-UG-B-0

Product Name: Ashly Power Amplifier
Ashly Amplifier User Guide
© Copyright ASTi 2019
Restricted Rights: Use, duplication, or disclosure by the Government is subject to restrictions as
set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software
clause at DFARS 252.227-7013.
This material may be reproduced by or for the U.S. Government pursuant to the copyright
license under the clause at DFARS 252.227-7013 (1994).
ASTi
500A Huntmar Park Drive
Herndon, Virginia 20170 USA

iii
Revision history
Date Revision Version Comments
7/26/2019 B 0 Converted content to XML. Updated content for gram-
mar, accuracy, and style.

iv
Contents
1.0 Introduction 1
1.1 Dimensions 2
2.0 Getting started 3
2.1 Cooling 3
2.2 Set up an Ashly Power Amplifier 3
3.0 General information 5
3.1 Front indicator lights 5
3.2 Rear panel connections 5
3.3 Front panel controls 7
4.0 Technical specifications 8
4.1 Wiring 8
4.2 Minimum guaranteed power 8
4.3 Reliability 8
Appendix A: References 9
A-1 Ashly Power Amplifier part numbers 9

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1.0 Introduction
Note: This document only pertains to Ashly Power Amplifiers and ASTi equipment. For gen-
eral information about the Ashly Power Amplifier, go to Ashly.com.
The Ashly Power Amplifier drives four to eight passive audio loudspeakers. Each amplifier is a
network device that integrates with ASTi’s Audio Communications Environment Network
(ACENet). ACENet provides a low-latency, network-based audio and I/O distribution archi-
tecture for ASTi’s Telestra and Voisus platforms. The amplifier also offers a full range of indic-
ators for accurate diagnostics. This document provides an overview of the ne8250c eight-
channel amplifier.
Figure 1, "New/old Ashly Power Amplifier chassis" below shows the new versus the old Ashly
Power Amplifier chassis:
Figure 1: New/old Ashly Power Amplifier chassis
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Ashly Amplifier User Guide (Rev. B, Ver. 0)

1.1 Dimensions
Table 1, "Ashly Power Amplifier dimensions" below shows dimensions for ne8250c eight-chan-
nel Ashly Power Amplifiers:
Ashly Power Amplifier Depth Width Height
ne8250c (black chassis) 15.5 in 19 in 3.5 in
ne8250c (black chassis) 39.4 cm 48.3 cm 8.9 cm
ne8250c (silver chassis) 16.84 in 19 in 3.5 in
ne8250c (silver chassis) 42.77 cm 48.26 cm 8.89 cm
Table 1: Ashly Power Amplifier dimensions
Figure 2, "Ashly Power Amplifier front and rear panels" below shows the Ashly Power Ampli-
fier's front and rear panels:
Figure 2: Ashly Power Amplifier front and rear panels
2 Copyright © 2019 Advanced Simulation Technology inc.
Ashly Amplifier User Guide (Rev. B, Ver. 0)

2.0 Getting started
Important: Before installation, unplug the amplifier, and turn down the channel attenuators
on the front panel.
This chapter discusses the following topics:
lCooling
lSet up an Ashly Power Amplifier
2.1 Cooling
Do not block any of the amplifier ventilation vents. When using an equipment rack, mount the
units directly on top of each other. Do not block rear, front, or side air vents. The side walls of
the rack should be a minimum of one inch (2.5cm) away from the amplifier sides, and the back
of the rack should be open.
2.2 Set up an Ashly Power Amplifier
Figure 3, "Ashly Power Amplifier rear panel" below shows the Ashly Power Amplifier's rear
panel:
Figure 3: Ashly Power Amplifier rear panel
To set up an Ashly Power Amplifier, follow these steps:
1. Use the first or second port and a CAT5 cable to connect to the ACENet switch. Do not
connect both.
2. Connect the 10/100 Ethernet port to the ACENet switch.
3. Connect the alternating current (AC) power cord.
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Ashly Amplifier User Guide (Rev. B, Ver. 0)

4. On the front panel, turn the channel attenuators all the way down.
5. Turn on the Power switch. The power indicator illuminates after a short boot-up
sequence.
6. After connecting the amplifier to the network, set up the amplifier on ACENet in the
Telestra Remote Management System.
Important: Disconnect the power cord before making any change to the installation or wir-
ing.
The analog input connectors are not used in the ASTi system setup.
Caution: Do not connect or disconnect speakers or ACENet while the amplifier is on.
4 Copyright © 2019 Advanced Simulation Technology inc.
Ashly Amplifier User Guide (Rev. B, Ver. 0)

3.0 General information
This chapter discusses the following topics:
lFront indicator lights
lRear panel connections
lFront panel controls
3.1 Front indicator lights
Figure 4, "Ashly Power Amplifier front indicator lights" below shows the Ashly Power Ampli-
fier's front indicator lights:
Figure 4: Ashly Power Amplifier front indicator lights
3.2 Rear panel connections
The Ashly Power Amplifier includes the following rear panel connections:
lAC power cord connector: standard International Electrotechnical Commission (IEC)
Type 320 inlet; 120 V models are 15-amp, while 220–240 models are 10-amp. Voltage is
indicated above the IEC inlet.
lOutput connector:Two output channels per connector; Shore Technologies Inc. (P/N:
OSTTJ040150).
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Ashly Amplifier User Guide (Rev. B, Ver. 0)

lPrimary and secondary Ethernet connection: connects to ASTi’s ACENet, which
provides low-latency, network-based audio architecture for ASTi communication and
sound modeling equipment and software. For more information about this architecture and
scalable distribution network, go to the ACENet Technical User Guide.
lMode switch: for every two channels, this switch chooses the amplifier's mode: bridge or
normal. In most cases, set the mode to normal.
Important: Turn off the amplifier before changing the mode setting.
lInput connectors: removable Euroblock connectors for balanced analog audio signal
input. ASTi system setup does not use the input connectors.
Figure 5, "Ashly Power Amplifier rear panel" below shows rear panel connections on the Ashly
Power Amplifier:
Figure 5: Ashly Power Amplifier rear panel
The CAT5 Ethernet cables connect to the DATA LINK 10/100 Mbps port and either the
Primary or Secondary Network Digital Audio ports on the rear panel.
6 Copyright © 2019 Advanced Simulation Technology inc.
Ashly Amplifier User Guide (Rev. B, Ver. 0)

3.3 Front panel controls
Channel Level Controlsact as the overall master gain control for each channel. An installation's
exact setting depends on a number of factors:
lSpeaker placement
lSpeaker sensitivity
lThe driven space's size
lThe system's sound level
Conventional audio setup procedures apply. Set the signal source and Channel Level Controls to
the maximum level you can achieve without overloading (i.e., clipping) the system.
Copyright © 2019 Advanced Simulation Technology inc. 7
Ashly Amplifier User Guide (Rev. B, Ver. 0)

4.0 Technical specifications
This chapter discusses the following topics:
lWiring
lMinimum guaranteed power
lMemory devices
lReliability
4.1 Wiring
Choose the appropriate size of the wire based on the distance from the amplifier to the speaker:
Distance Wire Size
Up to 25 ft (7.6 m) 16 AWG
26–40 ft (7.9–12.2 m) 14 AWG
41–60 ft (12.5–18.3 m) 12 AWG
Over 60 ft (18.3 m) 10 AWG
Table 2: Wiring distance and size
Caution: Do not connect the speaker return to the amplifier's chassis, or damage to the amp-
lifier may result. Do not use shielded cable for output wiring.
4.2 Minimum guaranteed power
The Ashly Power Amplifier guarantees the following minimum power:
l150 W per channel at 8 ohms
l250 W per channel at 4 ohms
4.3 Reliability
The Ashly Power Amplifier's (P/N: ne8250c low-Z) typical mean time between failure (MBTF)
is 478,000 hours.
8 Copyright © 2019 Advanced Simulation Technology inc.
Ashly Amplifier User Guide (Rev. B, Ver. 0)

Appendix A: References
For more information and Ashly-specific documentation, go to Ashly.com. Training videos are
also available on Ashly’s YouTube page.
A-1 Ashly Power Amplifier part numbers
This document refers to a specific Ashly Power Amplifier. If purchasing an Ashly Power Ampli-
fier from another source, follow the part numbers in Table 3, "Ashly Power Amplifier part num-
ber" below to ensure compatibility.
Ashly Power Amplifier ASTi Part Number
ne8250c with CNM-2 expansion card A-PAMP-ASH-8
Table 3: Ashly Power Amplifier part number
Similar part numbers that may appear to be the same will not work consistently with ASTi’s
ACENet architecture. For international voltage requirements, contact ASTi at support@asti-usa.-
com.
Copyright © 2019 Advanced Simulation Technology inc. 9
Ashly Amplifier User Guide (Rev. B, Ver. 0)