ALLNIC AUDIO HPA-5000 XL Owner's Manual - Page 4
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INTRODUCING THE HPA-5000 STEREO
HEADPHONE AMPLIFIER
The HPA-5000 is Allnic Audio's Output Transformer-less
(OTL) and Output Capacitor-less (OTC) stereo
headphone amplifier. The HPA-5000 utilizes a true
balanced Positive-Negative cancellation circuit.
The HPA-5000 has a voltage gain of +28dB, and a
maximum output of 5 watts. It works best with
headphones having an impedance of from 30 to 50
ohms.
The HPA-5000 has the following features:
•
High-quality, NOS tubes
•
True OTL/OCL design
•
Pure Class A operation
•
New vacuum tube damping technology – Allnic
Audio's patented "Absorb GEL tube damper"
technology prevents harmful vibrations from
reaching the driver tubes and, therefore, prevents
micro-phonic noise propagation in the tubes. The
Allnic Audio Absorb Gel damper technology
effectively solves a problem that plagues most
tube amplification systems. Provided other tube
components do not introduce micro-phonic noise
into your system, with the Absorb Gel damping
system, you will enjoy a degree of transparent
sound that will surprise and please you.
•
As are all Allnic Audio products, the HPA-5000 is fully
RoHS (EU Reduction of Hazardous Substances
regulation) compliant in construction and materials
WHAT'S IN THE BOX?
Please check that the shipping box contains the
following:
•
One (1) Allnic HPA-5000 Headphone Amplifier – in
natural aluminum or black, depending on your order
request
•
One (1) IEC type power cord
•
One (1) Owner's Manual
Note:
1)
The HPA-5000 ships with the tubes installed.
2)
The HPA-5000 will work with most IEC type
aftermarket power cords. Of course, only you can
determine the power cord that works most
synergistically with the HPA-5000 in your system.
3)
Be sure the HPA-5000 is labeled for the AC voltage
of your location. If it is not, please contact Allnic
Audio USA (See Figure 1).
We advise that you keep the box and other packing
materials that your HPA-5000 came in. It will be useful if
you sell your HPA-5000 or in the unlikely event you need
to ship it for service.
SAFETY
•
Remove ALL protective cushioning material inside the
tube chimneys before operation. The tube chimneys
should contain NOTHING except the
tubes.
You may experiment with the tube damping
rings, on or off.
•
Disconnect the power cord by pulling the plug, not the
cable.
•
Do not attempt any repairs. Do not remove the
unit's chassis covers without specific authorization from
Allnic Audio USA.
•
Keep the power cord away from heat sources
•
Keep the unit away from liquids – do not allow any
liquid to enter the interior of the unit.
•
When the unit is moved from a cold to a warm
environment, allow sufficient time for any condensation
to evaporate before plugging the HPA-5000 into an AC
connection.
•
See the notes on "Location, Location, Location".
CLEANING
A.
Chassis
Use only a soft, lint-free cloth dampened slightly with water
only (NO cleaning fluids!) to clean the faceplate and chassis of
the HPA-5000.
B.
Connectors
You may use any good quality contact cleaner
recommended for such applications to clean the contacts
from time to time, as you deem appropriate.
4