HA1M SIGNATURE SERIES, User Manual

Page 1: ...HA1M Two Input Headphone Amplifier Two mono inputs to one stereo headphone amp User Guide Glensound 6 Brooks Place Maidstone Kent UK ME14 1HE Tel 44 0 1622 753662 www glensound co uk ...

Page 2: ...ubt please contact us for the latest product information If you need any help with the product then we can be contacted at Glensound Electronics Ltd 1 6 Brooks Place Maidstone Kent ME14 1HE United Kingdom Telephone 44 0 1622 753662 Fax 44 0 1622 762330 EMAIL ADDRESSES General enquires office glensound co uk Technical enquires techinfo glensound co uk Sales enquires sales glensound co uk ...

Page 3: ...e point where they exit from the apparatus 11 Only use attachments accessories specified supplied 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 tis apparatus during lightning storms or when unused f...

Page 4: ... terminal in the plug marked N Neutral The Red or Brown wire must be connected to the terminal in the plug marked L Live THIS UNIT MUST BE EARTHED THIS UNIT IS FITTED WITH AN INTERNAL MAINS FUSE The fuse is located internally between the Live terminal of the IEC plug and the Live input of the power supply The fuse should only be changed by a qualified service engineer If replacing the fuse care sh...

Page 5: ... for business to business sales of WEEE in the UK our registration number is WEE JJ0074UR RoHS2 DIRECTIVE EC directive 2011 65 EU restricts the use of the hazardous substances listed below in electrical and electronic equipment This product conforms to the above directive and for this purposes the maximum concentration values of the restricted substances by weight in homogenous materials are Lead ...

Page 6: ... have been despatched the Company will guarantee the goods against any defect developing after proper use providing such defects arise solely from faulty materials or workmanship and that the Customer shall return the goods to the Company s works or their local dealer All non wear parts are guaranteed for 2 years after despatch and any defect developing after proper use from faulty materials or wo...

Page 7: ...2 Stereo Programme Monitor 13 FRONT PANEL USER CONTROLS CONNECTIONS 14 1 3 5mm Headphone Jack Socket 14 2 Left Volume Control 14 3 Right Volume Control 14 4 Power on Indicator 14 5 6 35mm 1 4 Headphone Jack Socket 14 6 Mono Switch 15 REAR PANEL CONNECTIONS 16 7 Left Audio Input 16 8 Mix Output 16 9 12VDC Input 16 10 Right Audio Input 16 11 Mains Input 16 WIRING INFORMATION 17 1 Standard wiring inf...

Page 8: ... headphones This advanced stereo headphone amplifier can also automatically accept mono headphone jacks meaning that mono earpieces can be used directly without needing to re wire cables It is possible to connect the balanced audio inputs outputs to domestic style unbalanced audio circuits and the preset gain controls provide sufficient output level adjustment to allow this For added flexibility t...

Page 9: ...on top of desks or worktops INSTALLING SIGNATURE SERIES IN A 19 RACK Firmly hold the signature subrack within the 19 rack and locate in 1RU of space Use the supplied 6mm rack screws to securly attach the unit to the rack INSTALLING ADHESIVE FEET FOR NON PERMANENT TABLE TOP MOUNTING Remove the front rack ears if they are not required turn the unit upside down and attach the supplied 4 adhesive feet...

Page 10: ...ilver button head screws that were removed from the front as per the bottom picture above USING THE MOUNTING HOLES FOR PERMANENTLY ATTACHING THE UNIT ABOVE OR BELOW A WORKTOP DESK Use either the top or bottom mounting holes as indicated above to use suitable screws to attach the signature unit to a worktop or bench PLEASE ENSURE THAT YOU USE SUITABLE FIXINGS Series Signature g K eep s W orkin g PW...

Page 11: ...RIGHT IN MIX OUT 6 35mm Headphone Jack Socket 3 5mm Headphone Jack Socket Mono Switch Shown in Mono Position Tip Ring Ring Tip NOTE Both jack socket sleeves are connected to ground Power On 100 240 VAC INTERNAL FUSE AC DC PSU 12V 12V EXT DC 12V ...

Page 12: ...he individual input level controls allow the presenter to adjust the volume that he she monitors each of the 2 sources In this case the presenter would monitor cue in one ear and programme in the other If the front panel mono switch was operated then the presenter would hear both cue and programme in both ears An alternative but similar scenario would be if the presenter was using a mono earpiece ...

Page 13: ...s so allows the monitoring of a stereo programme audio feed from the internal headphone amplifier with the ability to individually adjust the volume level of the left and right stereo inputs In this scenario the left and right audio inputs would be connected on the 2 rear panel XLR audio inputs and the operators headphones or earpiece would be plugged into either the 6 35mm or 3 5mm front panel ja...

Page 14: ...Right Volume Control This rotary potentiometer adjusts the audio level volume of the right input to the headphone amplifier Turning it clockwise increases the level and anti clockwise decreases the level 4 Power on Indicator When on this bright blue LED indicates that power is applied and the HA1M is on 5 6 35mm 1 4 Headphone Jack Socket This is the output of the headphone amplifier presented on a...

Page 15: ...headphone amplifier where the left audio input is routed to the left headphone output and the right audio input is routed to the right headphone output When in the down position marked mono this switch mixes the left and right audio inputs together and then routes this mono mix to both the left and right headphone outputs ...

Page 16: ...urce such as the Signature PS1 If both a DC input and a Mains input are present then the 2 power sources will provide redundancy and if one fails the other will automatically take over 10 Right Audio Input This standard 3 pin XLR provides an electronically balanced line level audio input to the headphone amps right audio channel This input can be wired unbalanced if required 11 Mains Input This wi...

Page 17: ...plifiers whose stereo outputs can be connected directly to mono headphone jacks without damaging the headphone internal amplifiers 1 2 3 XLR SOCKET FEMALE 1 2 3 XLR PLUG MALE TIP RING SLEEVE STANDARD XLR AUDIO PINOUTS 1 Ground Earth 2 INPHASE POSITIVE MIC 3 MATE NEGATIVE MIC STANDARD HEADPHONE WIRING TIP A LEFT Ear RING B RIGHT Ear SLEEVE Common Earth ...

Page 18: ...elow show a mono jack plug as the unbalanced end of the cable but this of course could easily be a different type of connector such as an RCA Phono or D type connector TO TIP TO SLEEVE TO TIP TO SLEEVE BALANCED OUTPUT ON SIGNATURE UNIT UNBALANCED INPUT OF EXTERNAL DEVICE BALANCED INPUT ON SIGNATURE UNIT UNBALANCED OUTPUT OF EXTERNAL DEVICE 1 2 3 2 1 3 TIP SLEEVE TIP SLEEVE ...

Page 19: ...mum Output Level Noise 2dB 20Hz to20kHz 0 015 THD 100Hz 10kHz Reference to 8dBu output Sophisticated Electronically balanced can accept monoor stereo jacks and automatic level correction for low or high impedance headphones 20dB into1KOhms 7dB into 32Ohms 89dB line up unweighted RMS 22Hz to22kHz Headphone Impedance 32 1000 Ohms AUDIO MIX OUT Frequency Response Distortion Output Type Maximum Output...