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SM PRO AUDIO HP12E

FOREWORD

Dear Customer,
Thank you very much for expressing your confidence in SM Pro Audio products 
by purchasing this unit. The HP12E is a solid “workhorse” headphone amplifier
designed for home, project, and professional studios, live sound contractors,
rental companies, repair centers, schools, and fixed installations

in short, 

virtually any and all venues where audio products are used. Drawing on years 
of hands-on experience in the audio industry and valuable suggestions from our 
customers, our engineers have developed a product that we are certain will 
more then meet your expectations. As with all SM Pro Audio equipment, the 
HP12E was designed to provide you with a superb performance, excellent 
technical specifications and uncompromising audio quality at an extremely 
affordable price.

Regards,
SM Pro Audio

INSTALLATION

PLACEMENT

Mains voltage

Your SM Pro Audio HP12E was carefully packed in the factory and the 
packaging was designed to protect the unit from rough handling. Nevertheless, 
we recommend that you carefully examine the packaging and its contents for 
any signs of physical damage that may have occurred in transit.

If the unit is damaged, please do not return it to us, but notify your dealer and 
the shipping company immediately, otherwise claims for damage or 
replacement may not be granted. Shipping claims must be made by the 
consignee.

The SM Pro Audio HP12E utilizes an electronic circuit. Be sure that there 
is enough air space around the unit for cooling. To avoid overheating, please do 
not place the units on high temperature devices such as power amplifiers or 
near other units, such as wireless, that may transmit high frequencies.

The HP12E can be used with voltages ranging from 100V AC to 250V AC, 
please make sure that you have selected the correct voltage range on the back 
of the unit and that the required fuse setting is correct as well before switching 
the unit ON. Any damage occurring as a result of incorrect voltage selection 
may not be granted a warranty repair. 

WARNING!

 

High volume levels can permanently damage your ears 

and your headphones. Turn down the LEVEL controls before your turn 
on the HP12E. 

Summary of Contents for HP12E

Page 1: ...HP12E SM PRO AUDIO HP12E Manual V1 0 headphone amplifier ...

Page 2: ...ource Make sure your equipment is set to the correct voltage for the country in which it will be used Grounding and Polarization Precautions should be taken so that the equipment s electrical grounding or polarization is not defeated Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on pinched damaged worn or rubbed by any other device or obstacle C...

Page 3: ...it from rough handling Nevertheless we recommend that you carefully examine the packaging and its contents for any signs of physical damage that may have occurred in transit If the unit is damaged please do not return it to us but notify your dealer and the shipping company immediately otherwise claims for damage or replacement may not be granted Shipping claims must be made by the consignee The S...

Page 4: ...rful flexible and reliable 12 channel headphone amplifier housed in a sturdy 1U 19 rack mountable metal chassis The HP12E boasts a variety of improvements over standard headphone amplifiers including expanded frequency response and added power for driving a variety of headphone types The HP12E s flexible design allows any of the two available audio input sources to be routed to any of the unit s o...

Page 5: ...ne Output Connectors Connect your headphones to these outputs Make sure that your headphones are not rated below below 8 Ohms in resistance or you may damage the HP12E 4 3 Headphone Volume Control Use this control to adjust the headphone output level Note that the level control sets the level for both outputs of each channel simultaneously 4 4 Power Switch This switch is used to power the HP12E On...

Page 6: ...el B The left and right 1 4 TRS inputs can accept either balanced or unbalanced sources The left and right XLR signals accepted balanced line level signals Signals appearing at the B inputs are routed to the headphone outputs when an output channel s front panel source selector switch is set to B 5 3 LINK Outputs Left right inputs A are mirrored at the left right LINK outputs This allows you to fe...

Page 7: ...t its sole discretion either repair or replace the product Warranty is enforceable only by the original retail purchaser Warranty services will be furnished only if the product is accompanied by an original retail dealer s invoice Any product deemed eligible for repair or replacement by SM Pro Audio under the terms of this warranty will be repaired or replaced at SM Pro Audio s sole discretion If ...

Page 8: ...n compliance with the instructions given in the user or service manuals Connection or operation of the unit in any way that does not comply with the technical or safety regulations applicable in the country where the product is used Damages defects that are caused by any other condition beyond the control of SM Pro Audio Repairs and modifications performed by unauthorized personnel will void the w...

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