Safety Instructions

7. Maintenance:
Please Switch OFF the units and make it cool enough then clean the
dust on the surface of the product with soft brush or dry cloth periodically.
When cleaning the vacuum tube please gently shake the tube and take
it down, install the tubes in the same way after clean.
Do not attempt to clean the unit with chemical solvents: this might
damage the finish.
8. Specifications
The Power Output: ..................................................................30W
Frequency Response:........................................20Hz~20KHz+1dB
Harmonic distortion:...............................................................≤1%
Signal-to-Noise Ratio:........................................................≥86dB
Input impedance:..................................................................80KΩ
Output impedance:..........................................................4Ω,8Ω
Power Supply:...........................................AC100V~120V/50~60Hz
AC220V~240V/50~60Hz
Dimensions: (L x W x H)........................................380x300x160mm
Weight:.................................................................................13Kgs
The used Vacuum Tube: 6L6Gx4, 12AX7x2, 12AU7x2
(Specifications subject to change without notice.)
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Important safety instructions
Read these Owner's Manual carefully before using the unit. Follow the safety
instructions on the unit and the applicable safety instructions list below. Keep these
Owner's Manual handy for future reference.
1. Read these instructions. - All the safety and operating instructions should be read
before the unit is operated.
2. Retain instructions. - The safety and operating instructions should be retained for
future reference.
3. Heed all warnings. - All warnings on the unit and in the operating instructions
should be adhered to.
4. Follow all instructions. - All operating and other instructions should be followed.
5. The unit should not be used near water for examples, near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc.
The units belong to high-temperature and fragile products; the work
temperature is up to 80 Centigrade or more, No touching the vacuum tube and
spilling the water on the tube! And keep the unit away from the babies and
children.
6. Carts and Stands - The unit should be used only with a cart or stand that is
recommended by the manufacturer. A unit and cart combination should be moved
with care. Quick stops, excessive force, and uneven surfaces may cause the unit and
cart combination to overturn.
7. Ventilation - The unit should be well situated so that its location or position does
not interfere with its proper ventilation. For examples, the unit 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. To prevent risk of
overheating, ensure that curtains and any other materials do not obstruct the
ventilation vents.
8. Heat - The unit should be situated away from heat sources such as radiators,
heat registers, stoves, or other apparatus that produce heat. Do not place sources of
naked flames, such as lighted candles, on the unit.
9. Power Sources - The unit should be connected to a power supply only of the type
described in the Ower's manual or as marked on the unit.
10. Power - Cord Protection Power-supply cords should be routed so that they are
not likely be walked on or pinched by items placed upon or against them. Paying
particular attention to cords at plugs, convenience receptacles, and the point where
they exit from the unit.
11. Unplug - The power cord of the unit should be Unplug from the outlet during
lightning storms or when left unused for long periods of time.
12. Do not operate the units under slant and shake condition or the filament of
vacuum tube will be damaged.
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