monolith 33304 User Manual

LIQUID SPARK HEADPHONE AMPLIFIER

P/N 33304

User’s Manual

The Liquid Spark is a compact, desktop solid state headphone amplifier.
It has one TRS (standard ¼” phone plug) single ended output and one
RCA preamp output.

The amp has one set of (RCA) inputs.

The LS (Liquid Spark) has gains of 3X and 6X, front panel selectable, and
an approximate full output power of 1.3W per channel with a 50 ohm
load.

FRONT VIEW

BACK VIEW

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Amplifier Operation

1. The LS has a short startup delay to protect the headphones. Do not
attempt to defeat this startup timing. Do not repeatedly push the
power button on and off because this will always reset the timing.

2. Plug the Monolith/Liquid Spark labeled power supply into the back
of the amplifier.

3. Press the power button to turn on the amplifier.

4. The small LED in the center of the front panel should light red.

5. After approximately 10 seconds the LED will turn white and the
headphones will be connected.

6. If the LED does not turn white within 30 seconds, please contact
Monoprice Tech Support Associates

7. Select gain with the center pushbutton. Pushbutton out is 3X, push
button in is 6X.

8. The preamp output is only active when headphones are not
plugged in.

9. To turn off the power push the power button again (pushbutton
out).

CAUTION: Please remember to turn down the volume (or power

down completely) before plugging or unplugging any sources or
headphones into or from your Liquid Spark.

Setup Instructions

1. Plug source(s) into the RCA or both inputs.

2. Select the gain.

3. Plug in headphones.

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