Owner`s manual

U V W X

N O P Q R S T

N - Selector Switch - This knob is turned to select an input (E) through (J).

O - Record/Off Switch - This toggle switch turns the outputs off and

prevents the main preamp outputs from being loaded down by the

non-linear load of most tape decks when the record functions are not

in use. To record, move the switch to the record position and wait a

short delay (5 seconds) for the protective muting function to clear and

connect the tape outputs.

P - 180°/0° Switch - This toggle switch allows the user to invert the

system phasing easily and safely. Depending upon the methods used

in producing the recording, the user may prefer listening to a given

recording in either phase position - let your ears be your guide.

Q - Balance Control - This knob controls the relative balance of the left

and right channels to compensate for any discrepancies caused by

speaker placement, source imbalance, etc.

R - Mute/Operate Switch - In the mute position, this toggle switch

cuts off the signal to the SFL-2 outputs (Band C); the LED (W) flashes as

a reminder. In the operate mode, the outputs are connected.

S - -1.5 dB/0 dB Switch - This toggle allows for greater volume

control over the 23-step/3 dB per step Volume Attenuator (T). In the

-1.5 dB position the volume level will be reduced by 1.5 dB. This fea-

ture provides the attenuator with a total of 46 discrete steps, allowing

the user a wide, precise volume control range.

T - 23-Step Precision Balanced Volume Attenuator Control -

This knob controls the balanced attenuator. The attenuator is manufac-

tured with a ladder of precision metal film resistors that give precise

control over left and right channel levels in 3 dB steps over 23 posi-

tions. Turn it clockwise and the music gets louder!

U - Operate/Standby Switch - When this toggle switch is in the

operate position and the Power Supply Switch (X) is on, the

Preamplifier is fully functional. In the standby “resting” mode, power is

still supplied to the tube filaments, but the high voltage power supplies

are disconnected from the audio circuitry.

V - LED Power Supply - This LED lights when the Power Supply is on.

-LED Preamplifier

- This LED lights when the Preamplifier is on

and flashes during warmup, muting, or low voltage from the A.C.

power source.

X - On/Off Switch - In the “on” position, this toggle turns the

Power Supply on. In the “off” position, the Power Supply and

Preamplifier are off.

Note: Be sure the Power Supply Umbilical Cord (M) that is attached

to the Power Supply chassis is plugged into the Preamplifier chassis

before the On/Off Switch (X) is turned on. Failure to do this may

cause damage to the SFL-2.