Beale Xpress IA-1250 Bedienungsanleitung

IA-1250

12 Channel x 50W Amplifier

User Guide

IA-1250 INTEGRATED AMPLIFIER

• Explanation of Graphical Symbols

The lightning flash with arrowhead symbol, within an equilateral triangle, is

intended to alert you 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 you to the

presence of important operating and maintenance (servicing) instructions in the

literature accompanying the product.

APPLICABLE FOR USA, CANADA OR WHERE

APPROVED FOR USAGE

CAUTION: TO PREVENT ELECTRIC SHOCK,

MATCH WIDE BLADE PLUG TO WIDE SLOT,

INSERT FULLY.

ATTENTION: POUR EVITER LES CHOCS

ELECTRIQUES, INTRODUIRE LA LAME

LA PLUS LARGE DE LA FICHE DANS LA

BORNE CORRESPONDANTE DE LA PRISE ET

POUSSER JUSQU AU FOND.

RISK OF ELECTRIC SHOCK

DO NOT OPEN

RISQUE DE CHOQUE ÉLECTRIQUE

N'OUVREZ PAS

CAUTION: To reduce the risk of electric shock, do not remove cover (or back).

No user-serviceable parts inside. Refer servicing to qualified service personnel.

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or 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.

10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

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

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is dam-

aged, 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.

15. The apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on the apparatus.

16. CAUTION: Servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any servicing other than that con-

tained in the operating instructions unless you are qualified to do so.

17. WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.

PORTABLE CART WARNING

Important Safety Instructions

Table of Contents

Important Safety Instructions .........................................................................................................................2

Table of Contents ..............................................................................................................................................3

Introduction.......................................................................................................................................................4

Features.............................................................................................................................................................5

What’s Included ................................................................................................................................................5

Front Panel Features ........................................................................................................................................6

Rear Panel Features..........................................................................................................................................7

IR Remote Control.............................................................................................................................................9

Installation ......................................................................................................................................................10

Wiring Infrastructure......................................................................................................................................11

Speaker Wire .............................................................................................................................................11

Multi-zone Audio (4/8Ω) ............................................................................................................................................ 11

Multi-room Audio - Stereo or Bridged (4/8Ω)..................................................................................................... 11

70V/100V....................................................................................................................................................................... 11

Connections.....................................................................................................................................................12

Speaker Connections ................................................................................................................................12

Bridged 8Ω ..................................................................................................................................................................... 12

4Ω/8Ω ............................................................................................................................................................................. 12

70V/100V....................................................................................................................................................................... 13

Audio Connections ....................................................................................................................................14

Zone Line IN................................................................................................................................................................... 14

Audio Bus IN ................................................................................................................................................................. 14

Audio Bus OUT ............................................................................................................................................................. 14

Control Connections..................................................................................................................................15

Zone IR IN ...................................................................................................................................................................... 15

Zone Mute ..................................................................................................................................................................... 16

Zone Status OUT ......................................................................................................................................................... 16

Zone Line/Bus Trigger IN .......................................................................................................................................... 16

Master Control IN ........................................................................................................................................................ 17

Master Control OUT .................................................................................................................................................... 17

RS232 I/O ...................................................................................................................................................................... 17

Settings ...........................................................................................................................................................18

70/V100V High Voltage Speaker Output ............................................................................................................. 18

8Ω/4Ω-70V/100V Zone Setting............................................................................................................................... 18

Stereo/Bridged Zone Setting ................................................................................................................................... 18

Limiter............................................................................................................................................................................. 18

Remote Bypass............................................................................................................................................................ 19

Voltage Select/Fuse.................................................................................................................................................... 19

Operation.........................................................................................................................................................21

Voltage Controlled....................................................................................................................................................... 21

IR Controlled.................................................................................................................................................................. 21

RS232 Controlled......................................................................................................................................................... 22

RS232 Commands...........................................................................................................................................23

RS232 Queries.................................................................................................................................................25

RS232 Settings................................................................................................................................................27

Specifications..................................................................................................................................................29

Limited Warranty............................................................................................................................................30

Introduction

Congratulations and thank you for purchasing the Beale Street Xpress IA-1250 12 Channel Amplifier.

The IA-1250 is, at its core, a twelve channel audio distribution amp. Snore...

That's why the IA-1250 does so much other stuff!!! OK. Yes, it is a twelve channel audio distribution amp

that can be configured for six stereo 4Ω/8Ω zones (30W/channel @ 8Ω; 50W/channel @ 4Ω); but it can also

be configured for six stereo 70/100V zones (30W/channel); or three high powered bridged zones (100W

@ 8Ω). By the way, the IA-1250 can be configured for any combination of stereo 4Ω/8Ω, 8Ω bridged and

70/100V zones all at the same time! That's some stuff, right?

But there's more...each zone can be controlled via IR or RS232 for ON/OFF, Input, Volume/Mute, Treble/

Bass and Left/Right Balance. The RS232 section is bi-directional with easy to configure command

structure. IA-1250 can be configured to automatically send zone status updates or respond to queries to

confirm zone status and settings. Commands for volume, treble/bass and balance can be specific values or

step commands depending upon the control application.

The IA-1250 has an Audio Bus IN that can be manually selected by IR commands, RS232 commands or

voltage trigger. The voltage trigger will switch a zone to the Audio Bus IN as long as there is voltage present

on the zone Line/Bus Trigger IN. When the voltage is cut, the zone automatically switches back to the zone

Line IN. Great for momentary switching to an audio page on the Bus IN!

Each zone has a Mute Trigger IN that will mute zone audio when voltage is present on the Mute Trigger IN.

When the voltage is cut, the zone audio output resumes.

Each zone has a 12VDC Status or Control OUT that can be used to activate a zone specific volatge

controlled device or otherwise indicate zone ON/OFF status.

Each zone has a -20dB audio limiter to prevent incidental peaks from becoming irrevocable problems.

The IA-1250 features a Remote Bypass switch that allows/blocks IR and RS232 from select zones for

zones that are intended to be set and not messed with.

Finally, the IA-1250 can has a 110~120V/220~240V select switch allowing it to be used just about

anywhere there is AC Voltage.

What? Yes of course it's rack mountable and comes with removable rack ears.

The Beale Street Xpress IA-1250 12 channel x 50W audio distribution amp...ready for anything...anywhere.

Please read and follow the instructions in this guide to assure proper installation and maximum

performance of your new Beale Street Xpress IA-1250.

Features

• Each zone can independently select a zone-specific stereo audio source or the global mono Audio Bus

input (unbalanced)

• Each zone can be independently configured for stereo 4Ω/8Ω mode, high powered bridged 8Ω mode or

70V/100V mode for total flexibility within a given installation

• All zones are independently controllable via RS232, IR and voltage trigger lines

• Each zone has -20dB Audio Limiter

• Each zone has an independent mute trigger input (activated by +3 to +30V DC)

• Each zone has an individual Trigger Output (+12V DC) that coresponds to zone ON/OFF status

• Front panel features “Zone ON” and “Zone Overload” LED indicators for each zone

• Master global Control In (+3 to +30V DC) and Control Out (+12V DC)

• Detachable screw-terminal connectors for global Audio Bus IN/OUT, Zone IR IN, Zone Mute, Zone Status

OUT and Zone Speaker Outputs

• Rack mountable in standard 19" rack (2U height)

• Selectable 110/220 AC volatge

What’s Included

1 - IA-1250 Amplifier

1 - IR Remote

1 - AC Power Cord

1 - Owner’s Manual

This is the stuff on the front panel...

IA-1250 INTEGRATED AMPLIFIER

21 1

1. RACK EARS - Two, optional rack ears for optional rack mounting...see where this is going? The IA-1250

is 2U rack height. If rack mounting, leave one rack space above and below for air flow. The rack ears can

be removed for shelf mount if desired. (OK. So they’re not necessarily on the front panel, but you can

see them from here.)

2. PEAK OUTPUT LEDS - Six, red LEDs indicate that the amplifier is within 5% of the maximum volume

setting. This is an indication that the volume setting is approaching maximum...not an indication of the

specific power output. To be safe, when this LED illuminates, back the volume off a bit to protect the

amp, speakers and probably your hearing.

3. ZONE POWER LEDs - Six, green LEDs illuminate solid green when a stereo zone is ON. LED turns OFF

when Zone is OFF.

Front Panel Features

This is the stuff on the rear panel...

Right Left

12 3 4 5 6 7 8 9

1011121314151617

1. SYSTEM 70/100 VOLT SELECT - One, switch. Slide switch to select between 70V and 100V for a high-

voltage audio distribution system. This setting will affect all zones in 70V/100V mode. Set for 70V when

voltage select is set to 110-120VAC; Set for 100V when voltage select is set to 220-240VAC.

2. ZONE IR, MUTE & STATUS TERMINAL - Six, plug-in screw terminals. Provides connections for zone

specific IR control, mute and status.

IR IN - Connect IR IN & GND to the Emitter OUT on an Xpress IR Control system for zone IR control

using the IA-1250 IR Remote.

Mute - Connect to a +3 to +30VDC @1mA control voltage to mute the local zone.

Status - Provides a 12VDC 1mA Control OUT to trigger zone specific voltage controlled devices.

3. ZONE SPEAKER TERMINAL- Six, plug-in screw terminals. Each terminal has six connections for different

speaker output configurations including:

Bridge 8Ω - Use indicated terminals for high output mono speaker connection. (100W @ 8Ω)

NOTE 1: 8Ω/4Ω - 70V/100V switch must be in the OUT position.

NOTE 2: The Stereo/Bridged switch must be in the IN (Bridged) position.

4Ω/8Ω - Use indicated terminals for normal stereo speaker connections. (30W @ 8Ω; 50W @ 4Ω)

NOTE 1: 8Ω/4Ω - 70V/100V switch must be in the OUT position.

NOTE 2: The Stereo/Bridged switch must be in the OUT (Stereo) position.

70V/100V - Use indicated terminals for 70V/100V stereo speaker connections. (30W @ 70V/100V)

NOTE 1: 8Ω/4Ω - 70V/100V switch must be in the IN position.

NOTE 2: 70V/100V High Voltage Speaker Output Switch must be set to proper voltage.

NOTE 3: The Stereo/Bridged switch must be in the OUT (Stereo) position.

4. ZONE LINE/BUS TRIGGER IN- Six, 3.5mm mini jacks. This voltage controlled input switches the zone

audio input from Line IN to Audio Bus IN. When there is no voltage applied, the zone audio input is zone

Line IN. When voltage is applied (+3 to +30VDC @1mA) the zone audio input will switch to Audio Bus IN.

5. ZONE 8Ω/4Ω - 70V/100V SWITCH - Six, push buttons. Press to select 8Ω/4Ω - 70V/100V by zone. Leave

OUT to select 8Ω/4Ω, press IN to select 70V/100V.

6. MASTER CONTROL IN - One, 3.5mm mini jack. Connect to a +3 to +30VDC @1mA control voltage to

turn the IA-1250 ON.

NOTE: Power ON/OFF switch must be in the OFF position when using this feature.

Rear Panel Features

7. MASTER CONTROL OUT - One, 3.5mm mini jack. Connect to any voltage controlled device that is to be

turned ON/OFF relative to IA-1250 ON/OFF Status. When any zone on the IA-1250 is ON the Master

Control OUT will output 11.5VDC@1mA-10VDC@5mA. When all zones are OFF the Master Control OUT

is 0.0VDC.

8. POWER ON/OFF SWITCH - One, switch. Set to ON position to turn power to the amp ON. Set to OFF

position to turn power to the amp OFF.

9. VOLTAGE SELECT SWITCH - One, switch. Select either 110V-120V or 220V-240V as appropriate for

local AC line voltage. Please confirm local voltage prior to use or making changes to the setting.

10. AC MAINS - One, three-prong socket. Use the supplied 3-pin ground power cable to connect the unit to

an external AC power supply.

11. FUSE - One, replaceable fuse. For 110V-120V/60Hz use T10.0AL/250V fuse. For 220V-240V/50Hz use

T5.0AL/250V fuse.

12. RS232 TERMINAL - One, DB9F terminal. Connect to an automation system or other controller for two-

way communication with and control of the IA-1250.

13. REMOTE BYPASS - One, six position DIP switch. Set to OFF to allow IR/RS232 control of the selected

zone. Set to ON to block IR/RS232 control of the selected zone.

14. ZONE LINE IN - Twelve, RCA jacks. Connect to the L & R line level OUTs on an audio source that is to be

dedicated to the local zone.

15. ZONE AUDIO LIMITER - Six, push buttons. Press to activates a -20dB input limiter, for both channels, to

help reduce the level of accidental audio peaks and clipping distortion by zone. Leave in the OUT position

to pass audio through unprocessed, press IN to activate the input limiter.

16. STEREO/BRIDGED - Six, push buttons. Sets zone amplifier output to stereo/bridge mode. This switch

works in conjunction with the zone speaker connections and 8Ω/4Ω - 70V/100V switch position.

Please see sections: Zone Speaker Terminal and 8Ω/4Ω - 70V/100V Switch, previous, for important

information.

Stereo - For stereo signals, leave switch in the OUT (Stereo) position. This applies to all connections

in the 8Ω/4Ω and 70V/100V configurations.

Bridged - ONLY press this button when using the BRIDGE 8Ω connections in a given zone.

CAUTION: In Bridged mode, the amplifier will encounter a load that is about one half of its actual

value. A 4Ω load would therefore be 2Ω to a bridged amp and if the amplifier isn’t designed to run

safely into such a low impedance (which the IA-1250 is not) damage may occur to the amplifier.

DO NOT CONNECT A 70V SPEAKER CIRCUIT WHILE IN BRIDGE MODE. The output will be 140V,

well beyond spec for a 100V system. Any damage to the amplifier caused by this configuration is

not covered under warranty.

17. AUDIO BUS - One, plug-in screw terminal. Mono, unbalanced input. This input will send the Audio IN

signal to all zones switched to Bus using the Line/Bus Trigger IN. It will also send the Bus Audio IN

signal to another IA-1250 via the Audio Bus OUT.

Rear Panel Features

IR Remote Control

The IA-1250 IR Remote Control, believe it or not, controls the IA-1250.

Actually, it controls the individual zones on the IA-1250, and will more

than likely be used to program some sort of programmable, integrated

IR remote, zone control system or other IR routing device.

All zones are configured for the same codes, so use of a multi-zone

controller or IR router will be necessary for centralized control of the

individual zones. Local zone control can be easily accommodated with

a local IR receiver, (we make those...please visit www.bealexpress.com

for additional information.) and an IR Remote.

1. IR LED - One, high-output IR LED. The IR LED flashes invisible

(infrared) light pulses that are the control codes for the IA-1250.

The LED must be pointed at an IR receiver (we make those...oh...

that's right...we already mentioned that) that is connected to an

IA-1250 Zone IR IN.

2. MUTE - With audio playing in a zone, press this button to mute the

zone audio output. Press again to un-mute.

3. BUS - Press this button to select the audio source playing through

the Audio Bus IN.

4. LINE - Press this button to select the audio source playing through the local zone Line IN.

5. TREBLE/BASS - Press the Treble +/- buttons to increase/decrease the accent of high frequencies in the

zone audio output. Press the Bass +/- buttons to increase/decrease the accent of low frequencies in the

zone audio output. Season to taste.

NOTE: Reset to flat requires issuing an RS232 command to the zone via the RS232 terminal. See

sections: RS232 Commands and IA-1250 Treble/Bass Settings for additional information.

6. VOLUME - Press the Volume + button to increase zone audio output. Press the Volume - button to

decrease zone audio output.

7. BALANCE L/R - Press the Balance L button to increase volume in the left speaker relative to the right

speaker. Press the Balance R button to increase volume in the right speaker relative to the left speaker.

NOTE: Reset to center default requires issuing an RS232 command to the zone via the RS232 terminal.

See sections: RS232 Commands and IA-1250 Left/Right Balance Settings for additional information.

8. POWER - Yeah...yeah...this button should have been listed first...press this button to turn the local zone

ON. Press again to turn the local zone OFF.

9. BEALE STREET XPRESS LOGO - No function specific to the remote, but we like the guitar pick shape,

fancy script Xpress and Sonic Vortex symbol, so we just thought we'd mention it.

Installation

Here's a few things to consider when installing the IA-1250...

IA-1250 INTEGRATED AMPLIFIER

1U Rack Vent Above IA-1250

1U Rack Vent Below IA-1250

1. The IA-1250 is convection cooled. It depends on the natural free flow of air up through the slot

perforations in the bottom plate, over the internal heat dissipating fins, then out the top cover, for

adequate cooling.

2. The IA-1250 is designed for mounting into standard 19" (483mm) racks or on flat horizontal surfaces.

3. If mounted in an equipment cabinet or other confining location, allow at least 2 inches of space above

the top cover. Be sure there are large openings in the shelf below the unit and in the cabinet to allow the

entry of cool air and the escape of warm air.

4. If the cabinet contains other heat generating components or several IA-1250’s are being used, be sure

to provide adequate ventilation to dissipate heat the units can generate.

5. Use fans (quiet, boxer type), if necessary, to ensure a constant flow of air through the IA-1250's and the

other heat generating components.

6. When installing the IA-1250 in a rack, please use racks that feature a rear support provision. Adding

a single RU (Rack Unit) vent above and below the IA-1250 will improve convection in heavy use

applications. [One Rack Unit size = 1-3/4" (44.5mm) in height]. Also try to mount the amplifier(s) at the

top of the rack so heat dissipation does not affect other devices.

7. Be sure to leave adequate space for large bundles of wire and dress them in such a manner that does

not block airflow. Leave enough 'play' in the wires for making connections should the system require

service.

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