-3-
2. Switches and functions (Front panel)
①
Power indicator LED: this blinks for about 40 seconds after powered on and lights up when the tube
heater is warmed up. (Even when the unit is turned on right after it was turned off, the power indica-
tor blinks again likewise.)
②
Power switch: pushing in the switch turns the unit on, and pushing it out turns the unit off.
③
Sockets for PRO Type earspeaker: insert 5-pin type earspeaker plug.
④
Volume knob: double-axis structure enables to turn left and right channel simultaneously.
In case right-and-left channel volume is unbalanced, adjust the volume by independently turning the
separate volume knobs. The front side is L-CH and the backside is R-CH.
⑤
SOURCE INDICATION: indicates source (XLR or RCA) selected by mode switch on rear panel.
LEVEL CONTROL MODE indication: indicates volume control operation either through the internal
volume of the unit, or through the external volume using attenuator or preamplifier.
⑥
INTERNAL: green LED lights up and level can be controlled by internal volume.
⑦
EXTERNAL: red LED lights up and level can be controlled by preamplifier or external volume.
＊
CAUTION: Volume level cannot be controlled by the unit volume controller when red LED is lit up.
OFF
ON
POWER
PRO-TYPE ONLY
SRM-700T
VACUUM TUBE OUTPUT DRIVER UNIT FOR EARSPEAKERS
5
1
3
4
6
7
9
2
8
L
R
10
0
INTERNAL
EXTERNAL(BYPASS
LEVEL CONTROL MODE
SOURCE
XLR
RCA
①
②
③
④
⑤
⑦
⑥
3. Precautions for use
●
There are high-voltage dangerous sections inside the unit. Do not remove the top cover or the bottom
plate, and avoid using the unit in humid or dusty places.
●
Since the driver unit generates heat, do not cover the venting holes on the top, side and
bottom plates.
●
Put it in an airy place if possible, and when installing it in a rack etc., keep 5cm or more
opening above the upper and side surface of the unit.
●
Do not use the unit with side panel down.
●
Since the degree of adhesion of foot is very high, be careful when moving the unit.
●
Take care when "LEVEL CONTROL" is in "EXTERNAL" position, because in this position the volume of
this unit is bypassed and the volume is not controlled.
●
Since large volume may come out, do not switch "LEVEL CONTROL" to "EXTERNAL" when wearing
your earspeaker.
