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Warranty Information

We go through great effort to make a soundly engineered, and superbly performing 
product of lasting durability. But we also understand that things infrequently go 
wrong, if you have any questions or problems please contact either your dealer or the 
factory, we are here to support the product and you, the user.

All Pass Laboratories products purchased new from an authorized Pass Laboratories 
dealer in North America are covered by a transferable, limited 3-year warranty. 
This warranty includes all parts and labor charges incurred at the factory or factory 

specifi ed repair facility, exclusive of any subsequent or consequential damages. 
Damage due to physical abuse is specifi cally excluded under this warranty.

For this warranty to apply the customer is responsible for returning the product 
unmodifi ed to the factory within the specifi ed warranty period.  The customer assumes 
all responsibility for shipping and insurance to and from the factory or a factory 
specifi ed repair facility. The conditions and stipulations of this Pass Laboratories 
warranty only applies to units originally sold new through an authorized dealer.  
Warranty on factory repair is 60 days and covers only the scope of the original repair.

Non-North America customers should consult with their original Pass Labs dealer or 
distributor for warranty repair instruction prior to contacting the factory or shipping 
product to the factory for repair. 

Non-North American product must be returned to the country of origin for warranty 
service.  Foreign distributors are only required to offer warranty service on Pass 
Laboratories product that they have imported, verifi able by serial number.

Please note: Conditions of warranty service and customer rights for product 
purchased outside the United States may vary depending upon the distributor and 
local laws. Please check with your local distributor for specifi c rights and details.

Any modifi cations to Pass Laboratories products that have not received written 
factory approval nullify all claims and void all provisions of the warranty and liability 
by the maker or authorized distributor. Should a modifi ed product be returned to 
the factory for repair the owner will be required to pay all necessary charges for 
the repair in addition to those charges required to return the product to it’s original 
confi guration.

In the case of safety issues, no product shall be returned to the customer without 
those safety issues being corrected to the most recent accepted standards. 

Removal or alteration of original Pass Labs serial numbers voids the factory warranty. 
Product with altered or missing serial numbers will be suspect as counterfeit or stolen 
product.

Pass Laboratories will not repair or in any way indemnify any counterfeit or cloned 
product. Pass Laboratories does not offer products in voltages intended for 
international markets either to authorized Pass Labs dealers or to third parties located 
in the United States or Canada.

Summary of Contents for HPA-1

Page 1: ...1 pass HPA 1 Owner s Manual ...

Page 2: ...stroy equip ment Ventilation Power amplifiers run warm but you should be able to place your hands on them without discomfort You must allow for this heat in installation by providing for free air circula tion around the product Leave a minimum of 6 of space around the amplifier The ventila tion should not be impeded by covering the ventilation openings with items such as newspa pers table cloths cur...

Page 3: ...overlooked and plays a large part in overall performance of the amplifier The HPA 1 s amplifier circuits are low feedback wide bandwidth discreet designs employing a J Fet input stage and a Mosfet output stage biased into Class A biased direct coupled output stage The HPA 1 easily drives headphones presenting loads from 15 to 600 Ohms particularly excelling on planar headphone designs The sound is r...

Page 4: ...formance after about one hour after turn on In the event of a power loss the unit shuts off and upon restoration of power the unit will go through the mute cycle and return to the state it was in prior to the loss of power It will remember the last input and function and will return to that setting before the loss of power This is also true when the unit is switched off with the power switch It is...

Page 5: ...in the best possible signal integrity between the headphone amp circuit and the headphones The silver contacts are rated to reliably carry 10A of current without overheating and are largely self cleaning If there is a better sounding and more trouble free 1 4 audio jack we ve yet to experience it In use the locking mechanism is automatic in action and requires little or no additional insertion for...

Page 6: ...y characteristics will differ slightly due to the different metallurgy of the fuse elements between commercial grade and audio grade fuses We can t guarantee that your audiophile grade fuse won t blow at a different in rush current threshold than your stock commercial fuse Use of other than approved fuses may invalidate your product warranty and result in product damage HPA 1 Specs Gain 8 dB Frequ...

Page 7: ...factory or shipping product to the factory for repair Non North American product must be returned to the country of origin for warranty service Foreign distributors are only required to offer warranty service on Pass Laboratories product that they have imported verifiable by serial number Please note Conditions of warranty service and customer rights for product purchased outside the United States ...

Page 8: ...8 pass Pass Laboratories Inc 13395 New Airport Rd Suite G Auburn CA 95602 530 878 5350 passlabs com ...

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