ALLNIC AUDIO HPA-5000 XL Руководство пользователя - Страница 6
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INITIAL POWER-ON
Once you have your HPA-5000 in place and all connections
have been made to your source, you are ready to turn on the
power for your HPA-5000. Before you power up the HPA-
5000, though, be sure you have:
•
removed ALL the cushion materials from inside the tube
chimneys.
•
turned the volume control of the HPA-5000 down to zero
by rotating the single knob on the front of the HPA-5000
counterclockwise until it stops.
• checked that all your connections are snug
To turn on the HPA-5000, press in the button switch on the
right of the front panel. Pressing the power button again will
power down the HPA-5000 (See Figure 2). Above the
headphone jack is a light that indicates that the jack is "live".
The light illuminates at power on.
OPERATION
Operation is straight-forward. Volume is controlled by the
volume knob and inputs are selected with the input button,
as explained above.
When you are finished listening, first turn off your HPA-5000
by pressing the power switch on the right hand side of the
unit's front panel; then turn off your sources.
In the case of any failure, please contact Allnic Audio USA
for assistance.
TUBES
The HPA-5000 uses the following tubes (See Figure 4):
• Four (4) x NOS 7233 triode
• Two (2) x NOS E180CC double triode
• Two (2) x NOS 6AN8 triode-pentode
All consequences of changing or attempting to change tubes
are borne by the user unless by express agreement
between the owner and Allnic Audio USA. Allnic Audio and
Allnic Audio USA are not liable in any way whatsoever for
any injury or loss incurred by the user or for damage to the
HPA-5000, any of its parts, or tubes or replacement tubes
resulting from the user changing or attempting to change
tubes.
TUBE BIAS
Tube bias is monitored by viewing the meter for each of the
right and left channels, located on the top of the chassis (See
Figure 4). Bias is correct if the meter's needle is in the center
section of the meter, between the green and red sections. Tube
biasing, if required, is performed by using a small screwdriver to
rotate the yellow bias screw directly above the relevant meter
so that the meter needle is in the center section of the meter,
between the green and red sections.
SPECIFICATIONS FOR THE ALLNIC AUDIO HPA-5000
HEADPHONE AMPLIFIER
Inputs:
Headphone Output:
Frequency Response:
Voltage Gain:
Optimum Headphone
Impedance:
Output Wattage:
Maximum Input
Voltage:
THD
(Total Harmonic
Distortion):
S/N Ratio:
Power Consumption:
Tubes:
6
Two (2) pairs unbalanced (RCA)
One (1) one-quarter inch (1/4")
20Hz ~ 20KHz (±0.3db)
+28dB
Thirty (30) to fifty (50) ohms
Five (5) watts
Five (5) volts RMS
Less than 0.03% (1KHz, Output 1V)
-68db (CCIR, 1KHz)
70 Watts
6AN8 – New Old Stock – first gain
stage – no equivalents
E180CC - New Old Stock -
Second gain stage - approximately
electrically (not sonically) equivalent:
CV8431, 7062, 5965, 12AV7, 6414,
6829
7233 – New Old Stock – no equivalents