AUSTRALIAN MONITOR IS2120P Installation And Operation Manual Download Page 3

ISP SERIES

Congratulations on choosing Australian Monitor for your 
professional amplification requirements.

The design of our ISP series constant voltage power amplifiers 
embraces all the aspects of a well-designed amplifier. The visual 
design, mechanical, electrical and sonic parameters, along with our 
dedicated manufacturing process, have all been optimised to provide a 
professional tool that exhibits quality, reliability and longevity.

The ISP series power amplifiers are 1 unit 1.75” high, 19” wide, or 2 unit 
3.5” high, 19” wide rack mountable units depending on the model. 

Models are available in 2 and 4 channel versions. The ISP amplifier is 
fully controllable over an Ethernet interface which provides 
configuration and monitoring capabilities. An included DSP also 
allows control of the volume, matrix mixing, high/low/all pass filters, 
compressor/limiter and delay which feeds an efficient Class D 
amplifier to deliver 120W or 250W of output power per channel. 

These amplifiers have been specifically designed to deliver 
their high power output with minimal distortion, and provide 
the critical degree of control required by your speakers.

Rating plate and caution marking are marked on the back enclosure of the apparatus

Revision 1.0: Sep 2019

WARNING

TO PREVENT FIRE OR SHOCK HAZARD, DO NOT USE THE PLUG WITH AN EXTENSION CORD, RECEPTACLE 

OR OTHER OUTLET UNLESS THE BLADES  CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE 

TO RAIN OR MOISTURE.

TO PREVENT ELECTRICAL SHOCK, MATCH WIDE BLADE PLUG TO WIDE SLOT & FULLY INSERT.

CAUTION

THESE 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 

CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO.

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.

WARNING

TO REDUCE THE RISK OF 

ELECTRIC SHOCK, DO NOT 

REMOVE COVER (OR BACK).

NO USER SERVICEABLE PARTS 

INSIDE. REFER SERVICING 

TO QUALIFIED SERVICE 

PERSONNEL.

The exclamation point within 

an equilateral triangle is 

intended to alert the user to 

the presence of important 

operating and maintenance 

(servicing) instructions in the 

literature accompanying the 

appliance

For European Union countries: This symbol on the 

product or its packaging indicates that this product 

must not be disposed of with other waste.

Instead, it is your responsibility to dispose of your 

waste equipment by handing it over to a designated 

collection point for the recycling of waste electrical 

and electronic equipment.

Please contact your local authority for further details 

of your nearest designated collection point.

INTRODUCTION & CONTENTS

ISP SERIES

 INSTALLATION AND OPERATION MANUAL

Introduction 

Features & Protection Features 

Front Panel

5

Rear Panel 

6

Installation & Setup

7

Basic Setup & Operation

16

Website User Interface

17

Maintenance, Fire Safety Compliance

21

Specifications 

22

3

Summary of Contents for IS2120P

Page 1: ...INSTALLATION AND OPERATION MANUAL ISP SERIES POWER AMPLIFIERS IS2120P IS2250P IS4120P IS4250P ...

Page 2: ...s avertissements 4 Suivez toutes les avertissements 5 N utilisez pas ce produit pre s de l eau la piscine la plage le lac etc 6 Nettoyez seulement avec une e toffe se che 7 Ne bloquez aucuns troux de ventilation Installez en accord avec les instructions du manufacturier 8 N installez pre s aucunes sources de chaleur comme radiateurs registres de chaleur fours ou les autres e quipements y compris a...

Page 3: ...HIS APPLIANCE TO RAIN OR MOISTURE TO PREVENT ELECTRICAL SHOCK MATCH WIDE BLADE PLUG TO WIDE SLOT FULLY INSERT CAUTION THESE 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 CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO The lightning flash with arrowhead symbol within ...

Page 4: ... channel amplifiers 2RU for 4 channel amplifiers Fan cooled Universal switchmode PSU with PFC ErP 1275 2008 EC Standby Compliant less than 2W PROTECTION FEATURES Clip protection Short circuit protection Overload protection Thermal protection ISP AMPLIFIER BLOCK DIAGRAM GLOSSARY FEATURES PROTECTION FEATURES ISP SERIES INSTALLATION AND OPERATION MANUAL ADC DSP DAC CLASS D POWER AMPLIFIER Phoenix Bal...

Page 5: ...mplifier temperature warm Yellow on Amplifier temperature hot Red flashing Amplifier over temperature Red on Amplifier protect See the Fault Finding section of this manual to fix any errors displayed In the advent of a thermal overload the internal operating temperature of the amplifier has exceeded a safe level of operation The fan will continue to run and once the amplifier has cooled it will re...

Page 6: ...et control is used to communicate with the device over a LAN The supported network speed is 100Base T Consult the Network setup section of this manual for further details RESET BUTTON The reset button is used to reset the Network Configuration security access or perform full factory reset Consult the Reset Button section of the manual for further details EXPANSION BOARD INPUT The device supports t...

Page 7: ...n is removed the amplifier will restart the power amplifier and exit standby The amplifier ships with energy saving mode enabled and will enter auto standby if it detects a period of inactivity less than 40dBV for 30 minutes The amplifier will exit standby mode when the signal level returns above 40dBV The auto standby function can be disabled and the timeout period modified in the user interface ...

Page 8: ...ontrol of output volume 2 Consult online manual for added functions GPIO 1 2 3 4 Internal Logic 3V3 100k GND ISP DEVICE The GPIO s number it s required function and its active high or low signaling states are configured in webpage The GPIO s number it s required function and its active high or low signaling states are configured in webpage Australian Monitor RC1 Linear Wallplate GPIO 1 2 3 4 ADC I...

Page 9: ...plifier Temperature Hot 5 Consult online manual for added functions Max sinking current 125mA Max Collector Emitter Voltage 48V The GPIO s number it s required function and its active high or low signaling states are configured in webpage The GPIO s number it s required function and its active high or low signaling states are configured in webpage Internal Logic Coil Flyback Protection Overcurrent...

Page 10: ...IC IP If a point to point connection is required between the PC and amplifier then a static IP address can be setup in the PC operating system to connect to the default static IP address of the amplifier Default Static IP 192 168 1 10 Default Static IP Subnet 255 255 255 0 NETWORK ACCESS Windows Machine and any OS that has a NetBIOS client installed and operational Supported Browsers Google Chrome...

Page 11: ...Hold down the reset button for approx 10 seconds until the amber red and green LEDs all flash on twice Immediately release the button The account login settings will all be restored to factory defaults listed below Username admin Password admin RESET BUTTON HELD DOWN FOR 15 SECONDS RESET ALL SETTINGS TO FACTORY DEFAULT CAUTION You should export the device configurations from the webpage before iss...

Page 12: ...lt in failure of the amplifier or expansion card INSTALLATION SETUP CONT ISP SERIES INSTALLATION AND OPERATION MANUAL 1 Remove the blanking plate from the rear of the amplifier by unscrewing the 2 Philips head screws securing the plate see image below 2 Remove the blanking plate from the ribbon cable by untying the twist tie see image below 3 Install the ribbon cable into the expansion board firml...

Page 13: ... and possibly force the unit into its thermal shutdown mode If the amplifiers are to be operated in an environment where the airflow is restricted such as sealed racks cooling should be supplemented by extra cooling fans to evacuate the heated air and aid the flow of cool air through the unit BALANCED INPUT WIRING INSTALLATION SETUP CONT ISP SERIES INSTALLATION AND OPERATION MANUAL IMPORTANT Do no...

Page 14: ... 4Ω and the high impedance output 4Ω OPERATION Remove the link between 4Ω and the OT IN Connect your speaker to the LOW IMPEDANCE OUTPUT C and 4Ω connections 70V Fit the link between 4Ω and the OT IN This connects the amplifier output to the input of the 70 100V transformer Connect your speaker to the HIGH IMPEDANCE OUTPUT C and 70V connections 100V Fit the link between 4Ω and the OT IN This conne...

Page 15: ... interference currents into system elements that mainly effect lower impedance paths Radio transmitters or stray magnetic fields from mains transformers are often the cause of this problem It is generally more difficult to eliminate this kind of interference but again moving the source away or providing a magnetic shield i e a steel shield should help IMPORTANT All signal source equipment should b...

Page 16: ...mplifier initialisation failure 4 DSP failure 5 Bootloader failure 6 File System failure 7 Expansion initialisation failure 8 ADC initialisation failure 9 PROTECT INDICATOR The following table indicates the meaning of each protection mode LED MEANING RESOLUTION Yellow flashing Amplifier temperature warm None required Yellow on Amplifier temperature hot None required Red flashing Amplifier over tem...

Page 17: ... the amplifier login page The default login is Username admin Password admin TABS There are 6 main tabs hosted by the web server that are your used to control the amplifier HOME TAB This is the main dashboard display for the amplifier Each channel output level is displayed with a fader to control the output volume The status of each channel is also displayed at the very bottom HOME AUDIO CONTROL N...

Page 18: ...bled by default and the default configuration is that each of the channel inputs maps to the same channel output with all other input sources muted To enable a DSP functional block Click on the functional block and modify the parameters to suit and then make sure it is enabled Presets can also be saved and recalled for a given configuration and are accessed by the Preset Action button CONTROL TAB ...

Page 19: ...mplifier to be saved to a local file on the PC This file can be re imported back to the amplifier at any point in time When performing a software update its important not to interrupt the power to the amplifier during the update procedure The update time can vary depending on the host machine but generally takes about 4 minutes to complete The software updates the webpage and firmware in the ampli...

Page 20: ...TWARE ACCOUNTS Standard users have access to the following tabs HOME Accounts can also be made active inactive so that the account information credentials are retained FOOTER TAB The footer tabs have provide the following functions Download the latest owners manual from Australian Monitor website this document Link to the Australian Monitor website https www australianmonitor com au Product inform...

Page 21: ...nance of your amplifier Your ISP amplifier will need minimal maintenance No internal adjustments need to be made to the unit to maintain optimum performance To provide years of unhindered operation we suggest a maintenance inspection be carried out on annually FIRE REGULATION COMPLIANCE This amplifier is not certified to fire regulations standards such as EN 54 16 21 ...

Page 22: ...15 0 02 0 03 0 03 0 05 0 03 0 05 3dB below clipping 1kHz 20kHz BW Unity Gain A Weighted 3dB below clipping 20Hz 20kHz 20kHz BW Unity Gain A Weighted 3dB below clipping 1kHz 16kHz BW Unity Gain A Weighted 3dB below clipping 100Hz 16kHz 16kHz BW Unity Gain 3dB below clipping 1kHz 16kHz BW Unity Gain A Weighted 3dB below clipping 100Hz 16kHz 16kHz BW Unity Gain INTERMODULATION DISTORTION SMPTE 4Ω 0 0...

Page 23: ...AL 250V MAXIMUM INRUSH CURRENT 70A 70A 70A 70A 230VAC 50Hz RMS CURRENT DRAW STANDBY IDLE 1 8TH POWER 1 3RD POWER FULL POWER 0 1 0 185 0 346 0 626 1 635 0 115 0 19 0 558 1 2 2 65 0 1 0 227 0 575 1 16 2 58 0 1 0 29 1 09 2 39 3 9 230VAC 50Hz 100V Output 1kHz Sine POWER CONSUMPTION STANDBY IDLE 1 8TH POWER 1 3RD POWER FULL POWER 2W 17W 64W 133W 368W 1W 23W 115W 262W 595W 2W 32W 120W 253W 582W 2W 37W 2...

Page 24: ...3 W x 15 32 D x 3 5 H SHIPPING DIMENSIONS 525mm x 425mm x 120mm 20 7W x 16 7 D x 4 7 H 546mm x 491mm x 197mm 21 5 W x 19 3 D x 7 8 H NET WEIGHT 7 2 Kg 15 9 lbs 9 0 Kg 19 9 lbs 14 0 Kg 30 9 lbs 16 0 Kg 35 3 lbs SHIPPING WEIGHT 9 8 Kg 21 7 lbs 11 2 Kg 24 7 lbs 15 6Kg 34 5 lbs 18 6Kg 41 1 lbs MOUNTING 1 RU 2RU OPERATING TEMPERATURE 0 C to 40 C 95 RH COOLING SYSTEM Axial Fans FAN NOISE 60dBA Noise mea...

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