LPB-3
Linear Power Booster & EQ | JUNE 2024
$129.00
Sound Clips
LPB-3
LPB-3
DESCRIPTION
AVAILABLE JUNE 2024
The effect that launched Electro-Harmonix gets a makeover with the Electro-Harmonix LPB-3 Linear Power Booster & EQ. With an active EQ featuring a powerful Parametric Mids control and up to a walloping 33dB of boost, the LPB-3 is the perfect tool for any tone tailoring task. Boost your sound into saturated bliss with transformative precision like never before.
Housed in EHX’s Nano-sized chassis, the LPB-3 is capable of boosting up to +33dB of clean gain with the powerful tone shaping of a 3-band EQ with parametric Mids. The active 3-Band EQ features TREBLE and BASS knobs to control the highs and lows plus a powerful parametric Mids control with adjustable MID FREQ and Q. BOOST sets the overall output of the pedal with the MAX switch toggling between 20dB and 33dB of maximum boost. Use the PRE-GAIN knob to fine-tune the total gain and volume of the boost.
This booster pedal’s additional features include selectable Buffered/True Bypass switching and internally extended 30V power rails for enhanced headroom.
- Active EQ for precision tone sculpting
- Parametric MIDS section cuts through any mix
- Up to 33dB of boosting power
- High voltage rails, extended headroom
- Selectable Buffered/True Bypass
- Inspired by the effect that launched Electro-Harmonix in 1968, the LPB-1!
SPECIFICATIONS
Circuit
Bypass
Audio
Power Supply
Dimensions (in)
Current Draw
Year Released
Owner's Manual
POWER JACK
Insert the output plug of the supplied AC Adapter into the power jack. The LPB-3 requires 120mA at 9VDC on a center-negative plug. Do not exceed 12VDC at the power jack. The LPB-3 does not take batteries.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. Set MAX to 20dB for greater dynamics; set MAX to 33dB to drive the signal harder and potentially send your amp into saturation along with higher BOOST knob settings.Q SWITCH
Sets the resonance or bandwidth of the MID EQ. Q set to LOW mode yields an EQ that sounds broader or rounder and affects a larger range of frequencies. In HIGH mode, the EQ sounds sharper or peakier, affecting a narrow range of frequencies.BOOST KNOB
Sets the output level of the LPB-3, basically working like a volume control.MID LVL KNOB
Boosts or cuts the MID EQ. Turn the MID LVL knob clockwise from its noon position to boost the MID EQ frequency. Turn MID LVL counterclockwise to cut MID EQ. Set MID LVL to its center position for a flat MID EQ response.TREBLE KNOB
Boosts or cuts frequencies above 3.25kHz. Turn the TREBLE knob clockwise from noon to boost the high end. Turn the knob counterclockwise to cut highs. Set TREBLE to its center position for a flat treble response.PRE-GAIN KNOB
Adjusts input gain from 0dB (unity) to 20dB before the signal hits the EQ circuitry. Use PRE-GAIN in conjunction with BOOST and MAX to fine-tune the total volume and gain through the LPB-3. Pro tip: If the EQ knobs are set in the boost half of their range, signal clipping can be avoided by decreasing PRE-GAIN. If the EQ settings are set to cut, turn up PRE-GAIN for more volume.MID FREQ KNOB
Adjusts the MID EQ center frequency, which is boosted or cut by the MID LVL knob. The frequency range of this knob is 240Hz to 3.3kHz. Pro tip: For a brighter sound, try cutting the low MIDs by setting MID FREQ to 10 o’clock and MID LVL to 11 o’clock.BASS KNOB
Boosts or cuts frequencies below 240Hz. Turn BASS clockwise from the noon position to boost the low end. Turn the knob counterclockwise to cut. Leave BASS in its center position for a flat bass response.INPUT JACK
Audio input jack. Input impedance 1MΩ; Max In: +20dBuOUTPUT JACK
Audio output jack. Output impedance 660Ω; Max Out: +22dBuFOOTSWITCH & STATUS LED
The footswitch engages or bypasses the effect. The status LED lights when the effect is engaged and is off while in bypass.Related Gear
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