Electro-Harmonix LPB-3 Manual

Linear power booster

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Welcome to the Electro-Harmonix LPB-3, a compact booster pedal

capable of delivering up to 33dB of clean gain. Powerful Treble, Mid,

and Bass EQ controls allow for wide variation in tone shaping. Addition-

ally, the LPB-3 boasts extended +/-15V power rails and switchable

true or buffered bypass modes. Whether your sound needs just a little

nudge, a boost to line level for DAW recording, or to send your

amplifier into saturated bliss, the LPB-3 has you covered.

Insert the output plug from the supplied 9VDC AC Adapter into the power jack

at the top of the LPB-3. Connect an instrument cable from your instrument to

the Input jack of the LPB-3. Connect an instrument cable between the Output

jack and a suitable amplifier or mixer. Press the footswitch to engage the

LPB-3 and light the LED.

A good starting point is to set the knobs to their 12 o'clock positions and the

MAX and Q toggle switches to their lower positions. Increase the BOOST knob

for a noticeable increase in volume compared to bypass mode. Play some of

your favorite licks then further tweak the knobs and switches to dial in your

perfect setting.

Voltage: 9VDC

This device comes equipped with an Electro-Harmonix 9.6DC-200 power supply. Use of the wrong adapter

or a plug with the wrong polarity may damage the device and void the warranty. Do not exceed 12VDC on the

power plug. Power supplies rated for less than 150mA can cause the device to act unreliably.

Operating Instructions

POWER SUPPY REQUIREMENTS:

Current: 120mA

Polarity: Center-Negative

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Page 1 Insert the output plug from the supplied 9VDC AC Adapter into the power jack at the top of the LPB-3. Connect an instrument cable from your instrument to the Input jack of the LPB-3. Connect an instrument cable between the Output jack and a suitable amplifier or mixer.
Page 2 PRE-GAIN. If the EQ settings are set to cut, turn up PRE-GAIN for more volume. 2. BOOST Knob Sets the output level of the LPB-3, basically working like a volume control. 3. MAX Switch Boosts the gain at the output stage, and sets the maximum gain of the LPB-3—from Input to Output—to either 33dB or 20dB.
Page 3 10. BYPASS MODE SLIDE SWITCH Removing the bottom cover allows access to the BYPASS Mode slide switch, located near the footswitch. The left position, TRUE, sets the LPB-3 to True Bypass mode (factory default); the right position, BUFFERED, sets the LPB-3 to Buffered Bypass mode. In True Bypass, the Input jack is directly connected to the Output jack and is not connected to any circuitry.
Page 4 WARRANTY INFORMATION Please register online at www.ehx.com/product-registration or complete and return the enclosed warranty card within 10 days of purchase. Electro-Harmonix will repair or replace, at its discretion, a product that fails to operate due to defects in materials or workmanship for a period of one year from date of purchase. This applies only to original purchasers who have bought their product from an authorized Electro-Har- monix retailer.