PYLE Audio Headphones PHA 40 User Manual

PHA40  
4-Channel Stereo Headphone Amplifier  
IMPORTANT SAFETY INSTRUCTIONS  
1. Read Instructions — All the safety and operating instructions should be  
18. Servicing — The user should not attempt to service the appliance beyond  
that described in the users operating instructions. All other servicing  
should be referred to qualified personnel.  
ead before the appliance is operated.  
2. Retain Instructions — The safety and operating instructions should be  
retained for future reference.  
19. Overloading — Do not overload wall outlets and extension cords as this  
3. Heed Warnings — All warnings on the appliance and in the operating  
instructions should be adhered to.  
can result in a risk of fire or electric shock.  
4. Follow Instructions — All operating and use instructions should be  
20. Replacement Parts — When replacement parts are required, be sure the  
service technician has used replacement parts specified by the  
followed.  
manufacturer or have the same characteristics as the original part.  
Unauthorized substitutions may result in fire, electric shock or other hazards.  
5. Water and Moisture — The appliance should not be used near water -for  
example, near a bathtub, washbowl, kitchen sink, laundry tub,swimming  
pool, or a wet basement.  
21. Safety Check — Upon completion of any service or repairs to this  
appliance, ask the service technician to perform safety checks to  
determine that the appliance is in proper operating condition.  
6. Ventilation — The appliance should be situated so that its location or  
position does not interfere with its proper ventilation. For example, the  
appliance should not be situated on a bed, sofa, rug, or similar surface that  
may block the ventilation openings: or placed in a built-in installation, such  
as a bookcase or cabinet that may impede the flow of air through the  
ventilation openings.  
7. Heat — The appliance should be situated away from heat sources such as  
radiators, heat registers, stoves, or other appliances (including amplifiers)  
that produce heat.  
Specifications  
8. Power Sources — The appliance should be connected to a power supply  
only of the type described in the operating instructions or as marked on the  
appliance.  
Input Impedance ..............................................100k-Ohm, Unbalanced  
Max Input Level ............................................... +15 dBu  
9. Grounding or Polarization — Precaution should be taken to insure that  
the grounding or polarization means of an appliance is not defeated.  
Input Connector ............................................... Stereo 1/4" TRS Jack  
10. Power-Cord Protection — Power supply cords should be routed so that  
they are not likely to be walked on or pinched by items placed upon or  
against them, paying particular attention to cords at plugs, convenience  
receptacles, and the point at which they exit from the appliance.  
Output Impedance ........................................... 80-Ohm Each  
Max Output Level ............................................. 40mW in 100-Ohm  
Max Gain ......................................................... 20dB/Channel  
S/N Ratio ......................................................... More than 90dB  
THD ................................................................. Less than 0.03%  
11. Cleaning — The appliance should be cleaned only as recommended by  
the manufacturer.  
12. Power Lines — An outside antenna system should not be located in the  
vicinity of overhead power lines or other electric light or power circuits, or  
where it can fall into such power lines or circuits. When installing an  
outside antenna system, extreme care should be taken to keep from  
touching such power lines or circuits as contact with them might be fatal.  
Power Requirement ......................................... 12V DC/150mA  
Dimensions, WxHxD:.......... 4.07" x 1.18" x 2.24" (103.5 x 30 x 57 mm)  
Weight, lbs (kg) ................................................ 0.42 (0.19)  
13. Nonuse Periods — The power cord of the appliance should be unplugged  
from the outlet when the appliance is to be left unused for a long period  
of time.  
14. Object and Liquid Entry — Care should be taken so that objects do not  
fall and liquids are not spilled into the enclosure through openings.  
15. Carts and Stands — If the appliance is used with a cart or  
stand, the cart or stand should be a type recommended by  
the manufacturer.  
An appliance and cart combination should be moved with  
care. Quick stops, excessive force, and uneven surfaces  
cause the appliance and cart combination to overturn.  
16. Mounting — The appliance should be mounted only as recommended  
by the manufacturer.  
17. Damage Requiring Service — The appliance should be serviced by  
qualified service personnel when:  
A. The power-supply cord or plug has been damaged.  
B. Objects have fallen into, or liquid has been spilled into the appliance  
enclosure.  
C. The appliance has been exposed to rain.  
D. The appliance has been dropped, or the enclosure damaged.  
E. The appliance does not appear to operate normally or exhibits a  
marked change in performance.  
Pyle Pro PHA40 Manual  
 

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