Ashly SRA User Manual

SRA-Series Amplifier

Operating Manual

Ashly Audio Inc.

847 Holt Road, Webster, NY 14580-9103

Toll Free [phone], Telephone [phone], FAX [phone]

www.ashly.com

All Trademarks referred to herein, are the property of their respective owners. R-042707

All Rights Reserved Rev 1.4 0306

Page - 2 Operator Manual – SRA Series Amplifiers

L
p

Important Safety
Instructions - 2

Introduction - 3

The SRA Series - 4

Physical Description - 5

Installation - 6

Operation - 8

Troubleshooting - 9

Spec Table - 10

Dimensions - 11

Warranty - 12

Important Safety Instructions
Consignes de sécurité à lire attentivement

This power amplifier can produce dangerous
output voltage, power and sound pressure
levels. In order to minimize the risk of injury,
damage, or hearing loss, please read the entire
owner’s manual.

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. The exclamation point within an equilateral
triangle is intended to alert the user to the presence of important operating and
maintenance instructions in the literature accompanying the device.

Cet amplificateur de puissance peut produire un
voltage et une pression acoustique qui pourrait être
dangereuse ou pourrait meme causer des
problêmes ou perte accuité auditive. Consultez le
manuel d’instruction et observez les consignes.

e symbole de la flèche dans un triangle équilateral symbolisant la foudre est

révu pour sensibiliser l’utilisateur à la présence de tension de voltage non isolée
à l’intérieur de l’appareil. Elle pourrait constituer un danger de risque de
décharge électrique pour les utilisateurs. Le point d’exclamation dans le triangle
équilatérale alerte l’utilisateur de la présence de consignes qu’il doit d’abord
consulter avant d’utiliser l’appareil.

This manual uses a

Perpetual Table Of
Contents. Each page

has a copy of the
manual’s contents in a
gray box just like this
one. The section you are
in will always be bold
with the other sections
“grayed out.” The feature
allows you to jump
directly to another
section without having to
return to a Table Of
Contents page.

1. Read these instructions.
Keep these instructions.

2.
Heed all warnings.

3.
Follow all instructions.

4.
To reduce the risk of fire or electric shock, do not expose

5.
this apparatus to rain or moisture.
Do not use this apparatus near water.

6.
Clean only with dry cloth.

7.
Do not block any ventilation openings. Install in

8.
accordance with the manufacturer’s instructions.
Do not install near any heat sources such as radiators, heat

9.
registers, stoves, or other apparatus (including amplifiers)
that produce heat.
Do not defeat the safety purpose of the polarized or

10.
grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug has
two blades and a third grounding prong. The wide blade
or the third prong are provided for your safety. If the
provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
Protect the power cord from being walked on or pinched

11.
particularly at plugs, convenience receptacles, and the
point where they exit from the apparatus.
Only use attachments/accessories specified by the

12.
manufacturer.
Use only with the cart, stand, tripod, bracket, or table

13.
specified by the manufacturer, or sold with the
apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid injury
from tip-over.
Unplug this apparatus during lightning storms or when

14.
unused for long periods of time.
Refer all servicing to qualified service personnel.

15.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or plug
is damaged, liquid has been spilled or objects have fallen
into the apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally, or has been
dropped.

Lisez ces instructions.

1.
Conservez ces instructions.

2.
Observez les avertissements.

3.
Suivez ces instructions.

4.
Pour réduire le risque de feu ou la décharge électrique,

5.
ne pas exposer cet appareil pour pleuvoir ou l'humidité.
Ne pas utiliser l’appareil près de l’eau.

6.
Le nettoyer à l’aide d’un tissus sec.

7.
Ne pas bloquer les ouvertures de ventilation, installer

8.
selon les consignes du fabricant.
Eloigner des sources de chaleur tel: radiateurs,

9.
fourneaux ou autres appareils qui produisent de la
chaleur.
Ne pas modifier ou amputer le système de la mise à

10.
terre. Une prise avec mise à terre comprend deux lames
dont une plus large ainsi qu’une mise à terre: ne pas la
couper ou la modifier. Si la prise murale n’accepte pas la
fiche, consulter un électricien pour qu’il remplace la prise
désuète.
Protéger le cordon de secteur contre tous bris ou

11.
pincement qui pourraient l’endommager, soit à la fiche
murale ou à l’appareil.
N’employer que les accessoires recommandés par le

12.
fabricant.
N’utiliser qu’avec les systèmes de fixation,chariots,

13.
trépied ou autres, approuvés par le fabricant ou vendus
avec l’appareil.
Débrancher l’appareil lors des orages électriques ou si

14.
inutilisé pendant une longue période de temps.
Un entretient effectué par un centre de service accrédité

15.
est exigé si l’appareil a été endommagé de quelque
façon: si il a été exposé à la pluie,, l’humidité ou s’il ne
fonctionne pas normalement ou qu’il a été échappé.

Copyright© 2006 – Ashly Audio Inc.

Operator Manual – SRA Series Amplifiers Page - 3

Important Safety

Introduction

Congratulations on your purchase of an Ashly SRA-Series amplifier. The SRA-Series is
made up of powerful, high-efficiency, lightweight amplifiers incorporating the latest
technologies. We are confident that you will be pleased with the high performance, superb
sound quality, reliability, and more.

About Ashly

Ashly Audio was founded in 1974 by a group of recording engineers, concert sound
professionals, and electronics designers. The first products were elaborate custom consoles
for friends and associates, but business quickly spread to new clients and the business
grew. The philosophy we established from the very beginning holds true today: to offer
only the highest quality audio tools at an affordable cost to the professional user – ensuring
reliability and long life. More than thirty years later, Ashly remains committed to these
principles.

Ashly’s exclusive Five Year, Worry- Free Warranty remains one of the most liberal
policies available on any commercial- grade product. The warranty covers every product
with the Ashly brand name, and is offered at no extra cost to you, our customer.

Instructions - 2

Introduction - 3

About Ashly
Safety
FCC Compliance

The SRA Series - 4

Physical Description - 5

Installation - 6

Operation - 8

Troubleshooting - 9

Spec Table - 10

Dimensions - 11

Warranty - 12

FCC Compliance

This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions:

1. This device may not cause harmful interference

2. This device must accept any interference received, including interference that may
cause undesired operation.

All Rights Reserved Rev 1.4 0306

Page - 4 Operator Manual – SRA Series Amplifiers

Important Safety
Instructions – 2

Introduction - 3

The SRA Series - 4

Protection

Physical Description - 5

Installation - 6

Operation - 8

Troubleshooting - 9

Spec Table - 10

Dimensions - 11

Warranty - 12

The SRA Series

SRA-Series amplifiers are high-efficiency, lightweight amplifiers incorporating the latest
amplifier technologies.

The series provides a power range of 75 to 150 watts per channel at 4 ohms (20Hz-20kHz,
1% THD). The SRA series is available in 2 and 4 channel versions at two power points. All
models will drive 4 or 8 ohm loads. All models are 1RU, with the two and four channel
versions weighing 9 pounds and 10 pounds respectively. All SRA amplifiers utilize a state­of-the-art, efficient, high speed switched mode power supply and offer remote power on/off
among the many standard features.

SRA-Series Power Ratings (per channel)

Stereo Mono Bridged

Model 8 4 8

SRA-2075 40 W 75 W 150 W
SRA-4075 40 W 75 W 150 W
SRA-2150 80 W 150 W 300 W
SRA-4150 80 W 150 W 300 W

• Input connections are via 3-pin Euroblock connectors.

• Output connectors are screw terminal strips.

• Rear panel switches include: selectable High Pass Filters, Gain and Operation Mode.

Protection

SRA-Series Amplifiers come standard with several protection circuits:

 Output over-current protection - The output current is limited to safe levels

regardless of load.

 DC output protection - The amplifier is switched off if more than 2 volts of

dc is present on the output. The amplifier will automatically restart after 5
seconds (if no fault remains). The protect LED is lit as well as the clip LED of
the affected channel(s).

 Main supply rail overvoltage protection - The amplifier is switched off if

the main supply rails have too high of a voltage. The amplifier will
automatically restart after 5 seconds (if no fault remains). The protect LED is
lit as well as the clip LED of the affected channel(s).

 Chassis internal temperature monitoring - The amplifier is switched off

when the internal ambient temp reaches 70º C. The amplifier will again switch
on when the internal ambient temp reaches 55º C. The protect LED is lit as
well as the clip LED of ALL channels.

 Inrush limiting - The turn-on current is limited. This is active during initial

startup as well as when exiting standby mode.

 Mains fuse - There is a 5 amp time delay fuse.

Copyright© 2006 – Ashly Audio Inc.