Superlux SF115A User Manual

Page 2

Rear Panel of SF112A and SF115A

1. IEC POWER SOCKET

Before connecting to the AC outlet, make sure the voltage is

same as required.

2. POWER SWITCH

This switch will determine the SF Series speaker where on or

off. Make sure the level control is down before you turn it on.

3. ON indicator

This green indicator lights on when power is turned on and it

goes off when power is off.

4. MIC/LINE level control

This knob determines the input level (microphone or line

inputs) to be sent to built-in power amplifier.

5. LOW CUT FILTER

This Pushing in this switch engages a low-cut filter, which

rolls off 12 dB per octave at the low frequencies below 100

Hz. This is useful for minimizing stage noise (rumble) and

microphone handling noise. It is highly recommended that

you engage this switch when using the SF speaker as a stage

monitor. This allows the bass amplifier to utilize its power for

those frequencies useful in stage monitor applications.

6. MIC/LINE SWITCH

Press down this button and the INPUT jack is for microphone

input source, and release this button the INPUT jack is for

line source, like mixer or signal processors.

7. MIC/LINE INDICATOR

When MIC/LINE SWITCH (no. 6) is pressed down, this

indicator will be lighted up, and the VOLUME CONTROL

(no. 4) is for microphone input. When it is off, then VOLUME

CONTROL (no. 4) is for line source.

8. SIGNAL INDICATOR

When input level gets to -40dBu, then this indicator will be on

to inform the user there is input signal sent in.

9. LF LIMITER

When built-in LF power amplifier is overloaded, the built-

in limiter circuit will be engaged to the audio path to prevent

speaker damaged by over-drive or excess signal level. This

indicator will keep on when LF limiter is triggered.

10. HF LIMITER

When built-in HF power amplifier is overloaded, the built-

in limiter circuit will be engaged to the audio path to prevent

speaker damaged by over-drive or excess signal level. This

indicator will keep on when HF limiter is triggered.

11. XLR INPUT JACK

This is a female XLR-type connector that accepts a

balancedor unbalanced mic- or line-level signal.

12. XLR LOOP THRU JACK

This is a male XLR-type connector that produces exactly the

same signal that is connected to the INPUT jack. It can be

a balanced or unbalanced mic- or line-level signal. Use it to

daisy-chain several active speakers together off the same

signal source.

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This manual is related to the following products:

SF112A