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It is most important that the system level settings are correctly set.  It is well known that 

many DJs push the level to maximum with meters peaking hard in the belief that they are 

getting the best from the system.  

THIS IS NOT THE CASE !

   The best can only be 

achieved if the system levels are set within the normal operating range and not allowed to 

peak.  Peaking simply results in signal distortion, not more volume.  It is the specification of 

the amplifier / speaker system that sets the maximum volume that can be achieved, not the 

console.  The human ear too can fool the operator into believing that more volume is 

needed.  Be careful as this is in fact a warning that hearing damage will result if high        

listening levels are maintained.  Remember that it is the QUALITY of the sound that   

pleases the ear, not just the VOLUME. 

OPERATING LEVELS 

The diagram below illustrates the operating range of the audio signal. 

NORMAL OPERATING RANGE

.   For normal music the signal should range between 

–6 and +6 on the meters with average around 0dB.  This allows enough 

HEADROOM

 for 

unexpected peaks before the signal hits its maximum 

CLIPPING

 voltage and distorts. 

It also achieves the best 

SIGNAL-TO-NOISE RATIO

 by keeping the signal well above 

the residual 

NOISE FLOOR

 (system hiss). 

The 

DYNAMIC RANGE

 is the maximum signal swing available between the residual 

noise floor and clipping. 

An important note …

 

The human ear is a remarkable organ with the ability to com-

press or ‘shut down’ when sound levels become too high.  Do 

not interpret this natural response as a reason to turn the sys-

tem volume up further!  As the session wears on ear fatigue 

may set in, and the speaker cones may become hot, increasing 

distortion and reducing  the ability of listeners to gain any ben-

efit from increased volume. 



Summary of Contents for Xone:23

Page 1: ...1 USER GUIDE Publication AP9250_1...

Page 2: ...Manual or approved by ALLEN HEATH Any necessary adjustment alteration or repair has been carried out by ALLEN HEATH or its authorised agent This warranty does not cover fader wear and tear The defecti...

Page 3: ...received the following Safety Sheet Important Read this sheet before starting Retain for future reference Power Supply 12V 2 5 Amps Xone 23 mixer Power supply IEC Lead This is country specific and wil...

Page 4: ...efer to the additional information available on our web site or contact our technical support team http www xone co uk http www allen heath com Warranty 2 Packed Items 3 Contents 4 Connection diagram...

Page 5: ...5 APPLICATION DIAGRAM...

Page 6: ...essive 28dBu max level the Xone 23 is perfect for the DJ who requires a high quality compact mix tool Key features of the Xone 23 are 2 2 stereo channels with dual levels for phono line inputs Up to 4...

Page 7: ...i clockwise to kill a frequency band or clockwise to boost If all controls are fully anti clockwise the signal will be muted Channel Fader VCA fader allows you to progressively raise or lower the chan...

Page 8: ...to Cue nothing will be sent to the headphone output unless a channel Cue is activated When set to Mix the main mix will always be sent to the headphones In the centre position the Cue signal and the m...

Page 9: ...FX loop on switch Press this switch to activate the external effect loop Leave switched off if an external effects unit is not connected Filter Frequency Sets the cut off frequency of the VCF filter M...

Page 10: ...cts unit PSU connection To prevent damage to your Xone 23 only use an A H approved power supply Power Switch Switches the unit On Off Main outputs Connect these to a PA amplifier using professional ba...

Page 11: ...es high pass and low pass A large illuminated switch selects which type is active The graphs below show the effect on the audio frequency response for the two filter types The range of sweep from low...

Page 12: ...leases the ear not just the VOLUME OPERATING LEVELS The diagram below illustrates the operating range of the audio signal NORMAL OPERATING RANGE For normal music the signal should range between 6 and...

Page 13: ...as a mains frequency audible hum or buzz To ensure safe and trouble free operation we recommend the following Have your mains system checked by a qualified electrician If the supply earthing is solid...

Page 14: ...o unscrew the 1 4 headphone bezel using an 11mm or 7 16 AF socket and remove the T10 screw that secures the headphone PCB to the chassis Carefully unplug the multi way harness from the connector PCB a...

Page 15: ...t panel and rear chassis panel The diagram above shows all of the replacement parts that can be ordered from your local technical support or direct from Allen Heath for the Xone 23 When ordering pleas...

Page 16: ...MONITOR or HEADPHONE level controls depending on what output your amplifier is connected to or if you are monitoring through headphones External effects unit can t be heard Check that the Effects unit...

Page 17: ...100 ohms 4dBu 28dBu Monitor RCA 100 ohms 2dBu 22dBu Record RCA 100 ohms 2dBu 19dBu FX SND RCA 100 ohms 2dBu 19dBu Headphones 3 5mm and 1 4 TRS Jacks 1 ohm 200mW RMS into 30 ohms Performance Distortion...

Page 18: ...18 BLOCK DIAGRAM...

Page 19: ...19...

Page 20: ...s By registering with us and becoming an official Registered User you will ensure that any warranty claim you might make is actioned quickly and with the minimum delay Alternatively you may either cop...

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