Butler 2250, Информация владельца

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6) DC Offset Voltage at Speaker Output: Continuous monitoring
circuit immediately opens the speaker relay upon the
detection of any excessive DC voltage level.
7) Short circuit protection: In addition to the Main DC Power
Fuses, mentioned in #4 above, this continuously active circuit
becomes active to the speaker output below a load of approx.
2 ohms. It will prevent a catastrophic over-current condition
for the output devices in the case of a direct short circuit
between the + and - output speaker binding posts.
8) Over Temp Circuit Breaker: Opens the speaker relay if the
heatsink temperature exceeds 115 deg. C. If this occurs, the
amp should automatically begin operate again after the
temperature has decreased sufficiently.
NOTE: BE CERTAIN THAT AIR FLOW IS COMPLETELY UNRESTRICTED ABOVE
AND BELOW THE AMPLIFIER. IF RACKMOUNTED, LEAVE AT LEAST A
STANDARD SINGLE SPACE BETWEEN THE NEXT PIECE OF EQUIPMENT (TOP
AND BOTTOM) OR PROVIDE FORCED AIR COOLING. THIS AMP IS DESIGNED
FOR USE ONLY AT ROOM TEMPERATURE WITH ADEQUATE VENTILATION AND
CIRCULATION.
IMPORTANT: COOL OPERATION = LONGEST LIFE AND RELIABILITY!
DO NOT OPERATE WITHIN A COMPLETELY CLOSED CABINET OR ENCLOSURE!
LET YOUR AMP BREATHE!
Use and Operation:
Important: Do not apply power until you have read and understand this section!
Connect or disconnect cables only with amplifier OFF.
Note: Your new Butler Audio amp is designed to operate in stereo with ONE separate
speaker system connected per channel. Connect "Speaker Outputs" to speakers only!
DO NOT SHORT ANY SPEAKER OUTPUT POST TERMINAL TO ANY OTHER SPEAKER
OUTPUT POST TERMINAL. CONNECT EACH SEPARATE SPEAKER LOAD ONLY
BETWEEN THE SPEAKER POSTS OF PAIR CHANNEL. WHEN USING MONO MODE
(BRIDGED), BE SURE TO SELECT THE “MONO” SETTING (DOWN POSITION) OF THE
STEREO/MONO SWITCH.
Front Panel Power Switch:
Supplies main AC power to the amplifier. The ON position is up and
will be indicated by the blue LED indicator and the glow of the tubes
through the front panel louvers.
Rear Panel Remote Jack:
This 3.5mm standard mini phone jack is connected to a heavy duty
AC relay that parallels the operation of the Front Panel Power
Switch. Therefore if remote operation is desired, leave the switch
in the OFF (down) position. Whenever an 8 - 13V DC voltage is
supplied to the jack (either polarity) the amp will be turned ON just
as if the front power switch were used. It will not harm the amplifier
if the front panel power switch is turned ON with the relay activated,
but this will disable the remote function until it is switched OFF
again.