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INSTALLATION GUIDE 

 
 
 

UNPACKING 

 
Immediately upon receiving your AX250i inspect the carton for evidence of 

mishandling during shipment. Then carefully unpack the unit and inspect for 
damage. 

 
Please save the shipping carton and all inner packing materials in the event that the 

AX250i needs to be shipped for service or moved to a new location.  
Should you discover that the AX250i has been damaged during shipping please 
contact your dealer immediately. 

 
 

 
PRECAUTIONS 

 
1)

 

Never expose the unit to moisture 

 
2)

 

Avoid restricting the airflow around the AX250i. Good airflow is necessary to 
help ensure proper operation. Not only should you provide enough free space 

around the unit, but also ensure that air can flow freely and escape from the 
amplifier surroundings. Failure to do so may cause intermittent channel 

cutout and reduced life expectancy.  

 

3)

 

Under no circumstances should the speaker output terminals of the unit be 
short circuited, or connected to another output. 

 
4)

 

Never plug the RS232 cable into the unit while power is connected. 

 

5)

 

Never short the 10 way controller connector terminals. These should all be 
connected before the AX250i is powered. 

 
6)

 

Avoid installing the AX250i in positions where the front panel is exposed to 

direct sun light. This may intermittently slow down the response of the unit to 
commands. 

 
7)

 

Never connect more than four controllers to the unit’s 12Vdc-power supply 
terminals. The supply is internally poly-fused (self-resetting) and will open 

circuit. 

 

8)

 

Never connect the AX250i’s +12Vdc power supply to an external power 
supply or other Axium amplifier’s +12Vdc output.  

 

 
 

 
 

 

Summary of Contents for AX250i

Page 1: ...INSTALLATION OPERATION MANUAL AX250i Two Zone Two Stereo Pre Amplifiers Amplifiers With RS232 Keypad IR Control Total In Home Connectivity ...

Page 2: ...products are built to the highest standards of quality and reliability To view Axium s product line of Multizone Amplifiers controllers accessories please visit the Website at www axium co nz You may also download the latest control software Table Of Contents INTRODUCTION 1 FEATURES 2 INSTALLATION QUIDE 4 FRONT PANEL OPERATION 5 REAR PANEL CONNECTIONS 6 SPECIFICATIONS 8 APPENDIX1 RS232 PROTOCOL 9 ...

Page 3: ...imit setting zone tracking See the features section of the manual A utility program called AMPCTRL is available from the Axium website this gives users complete access and control of all Axium networked components and even provides the ability to schedule events from your personal computer Axium Multizone amplifiers may be interconnected via the expansion bus providing up to 32 zones of control an...

Page 4: ... and 12VDC outputs on the rear panel connector The output s are protected against shorts and back EMF voltage surges which may occur if powering a relay Summed Amp On A Summed Amp On 12VDC output is provided on the rear panel connector This is typically used to switch the Audio source component s AC power If any amplifier Zone or Speaker output in an Axium amplifier stack is ON then this output wi...

Page 5: ...lly this is to prevent reckless use of the system or prevent destruction of speakers when powered by a slave amplifier Global IR commands There is a range of Global IR commands available for turning All amplifiers either On Off or selecting various audio sources There are also Force and Release Preset commands that invoke a user programmed Amplifier preset Global Preset One Preset may be programme...

Page 6: ...an flow freely and escape from the amplifier surroundings Failure to do so may cause intermittent channel cutout and reduced life expectancy 3 Under no circumstances should the speaker output terminals of the unit be short circuited or connected to another output 4 Never plug the RS232 cable into the unit while power is connected 5 Never short the 10 way controller connector terminals These should...

Page 7: ...utton until the BASS indicator LED is illuminated You can then increase or decrease the BASS by pressing the VOL UP increase or DOWN decrease The FUNCTION level value is indicated on the 2 digit display The Zone is selectable between 0 31 and must be set in memory by pressing the SELECT button FUNCTION mode is terminated after 4 seconds of inactivity or by toggling past the last FUNCTION ZONE STAN...

Page 8: ... have volume pads installed and a slave amplifier is required to operate the network at full power PRE OUT is the Zone 1 post fader output Output level is dependant on the volume control The output is muted when Zone 1 is muted PRE OUT may be used to drive a high power Slave amplifier or Active Sub Woofer IR Out A 3 5mm phono socket provides direct connection for IR emitters The output is individu...

Page 9: ...On 12V This is used to switch power sockets for connecting AC power to Audio source components i e CD players Tuners etc Amp ON A If Speaker A Zone 1 is ON then output will be 12V Current limited 25mA Amp On B If Speaker B Zone 1 is ON then output will be 12V Current limited 25mA Amp On C If Speaker C Zone 2 is ON then output will be 12V Current limited 25mA Amp On D If Speaker D Zone 2 is ON then...

Page 10: ...s control range 12db Treble control range 12db Balance control range 19db Loudness boost Gain 50db 6db 40Hz Volume control range 86db 0db 2 5db steps Mute attenuation 100db Amplifier Output power 8 ohm load 50W RMS Output power 4 ohm load 75W RMS Slew Rate 10V µs THD 8ohm load 1KHz 5Watt 0 01 IR range 9 m 30degrees off horizontal axis Dimensions Width 435mm 17 Height 112mm 4 2 5 Depth 340mm 13 2 5...

Page 11: ...byte Zone Axium amplifiers and keypads are encoded with up to 32 zones 00 31 All amplifier zones may be addressed by sending the FF characters Data Command Content Standby 00 Standby A OFF 01 Standby A ON 02 Standby B OFF 03 Standby B ON Mute 00 Mute 01 Un mute Source Selection 00 Select CD 01 Select Tape 02 Select Tuner 03 Select Auxiliary 04 Select Mono utility input Volume 00 A0 range Bass F4 0...

Page 12: ...one X Example strings 010801 Standby A ON command for Zone 8 060002 2db Treble setting on Zone 0 033102 Tuner source selection on Zone 31 0B0311 Volume down continuous push on Zone 3 keypad Keypad key codes An Axium Keypad may be directed to emit its learnt IR commands via RS232 control This is achieved by sending a Cause key press on Keypad command followed by the zone and the Keypad key code dat...

Page 13: ...cally or as single events A keypad Macro may also be programmed as part of the Schedule An Axium Keypad connected to an amplifier may be controlled causing the keypad to emit it s learnt IR strings Thus Audio Source CD Tuner etc control may be achieved via the AMPCTRL program The Keypads programming file may be imported from AxiumIR Keypad and Remote control program providing button ID s For a ful...

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