Ampeg Liquifier Owner’s Manual

Owner’s Manual

Liquifier Analog Chorus

TABLE OF CONTENTS

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Top Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Rear and Bottom Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Suggested Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Technical Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Warranty and Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Introduction

The Ampeg Liquifier Analog Chorus pedal delivers incredibly rich tones thanks to its dual
chorus circuit design. Experience classic, dreamy chorus, or turn it all the way up to
transport your tone to a new dimension. Featuring a roadworthy, all-metal chassis and true
bypass switching, the Liquifier Analog Chorus delivers all the lush sounds you’ve been
dreaming of, and more.

Like all Ampeg products, your Liquifier Analog Chorus pedal is designed by musicians and
built using only the best of components. Each pedal is tested to confirm that it meets our
specifications, and we believe that this pedal is the absolute best that it can be.

In order to get the most out of your new pedal, please fully read this Owner’s Manual,
as well as the Important Safety Instructions included with your pedal, before you begin
playing. Best of luck in all of your musical endeavors!

And thank you for choosing Ampeg.

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Liquifier Analog Chorus

Features

• Dual chorus circuit design delivers incredibly rich chorus tones for both bass &
guitar

• Dial in the perfect sound with Rate, Depth, and Eect Level controls

• True bypass, analog design with incredible signal-to-noise ratio

• Roadworthy all-metal chassis construction

• 9V DC supply or battery capable (not included)

About the Liquier Analog Chorus

A chorus eect essentially copies the original signal, slightly alters the timing using delay,

and combines it with the original signal. By adjusting various parameters, a wide range

of eects may be produced. Just like a chorus of singers, the combination of multiple,
slightly diering sources creates blurriness of both pitch and rhythm that makes the

sound feel “wider” than the original. When used tastefully, chorus can add a very melodic

presence to a bass line. It provides a soft, ethereal sweeping eect that is useful for

thickening and for making a particular sound pop out of the mix. It can also be abused for

all kinds of great, specialized eects!

But here’s what makes the Ampeg Liquier Analog Chorus pedal unique:

• Instead of just a single delayed copy of the original signal, the Liquier makes two

copies... and one of those copies is a polarity-inverted mirror image.

• What happens next is that two separate triangle waves vibrate the pitch of the
copies. These waves are linked so that as one copy rises sharply in pitch, the other

wave falls at by the same amount. As the pitches criss-cross each other, some
high frequencies cancel each other out in a “comb-ltering” eect that rises.

• When the two copies are matched exactly in their pitch-shift, they briey disappear.
This is also known as “through-zero anging,” a rarity in true-analog eects pedals.

• All three signals (dry + delay + polarity-inverted mirror image) are blended
together via the Eect Level knob. The result is signal movement that swirls in a

3-dimensional manner.

Now go impress your friends with this new-found knowledge!

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Top Panel Features

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3

1. INPUT: The signal output from an

instrument (active or passive) may be
connected to this 1/4" Input by means
of an unbalanced, (shielded) instrument
cable.

NOTE: Unplug the input cable when
not in use, as the 9V battery will
drain (and eventually die). Details on
replacing the battery may be found on
page 5.

2. ON/OFF SWITCH: Engage this

switch to activate the Liquier Analog

Chorus pedal. This pedal is true
bypass, meaning, the signal will pass
through from input to output with no
circuitry in between when the switch is
disengaged.

3. ON/OFF LED: This LED illuminates

purple when the pedal is engaged.

4. RATE: Rotate this knob to adjust

the speed of the low-frequency
oscillator (LFO), from minimum (fully

counter-clockwise) to maximum (fully
clockwise).

5. DEPTH: Rotate this knob to adjust the
amplitude of the rate, from minimum
intensity (fully counter-clockwise) to
maximum intensity (fully clockwise).

Liquifier Analog Chorus

6. EFFECT LEVEL: Rotate this knob to

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1

7

2

adjust the overall eect level, from Dry
(no eect, fully counter-clockwise) to
Wet (100% eect, fully clockwise).

Examples:

• 9:00 – The swirling takes a subtle

back seat to the dry signal.

• 12:00 – With the Eect Level knob

at half, the signal becomes a
glorious 3-way psychedelic swirl.

• 5:00 (100% wet) – This results in
pure, through-zero anging.

7. RATE INDICATION LED: This green

LED ashes to indicate the current

modulation rate.

8. OUTPUT: Typically, this 1/4" output
jack connects to the input of your bass

amplier—or powered loudspeakers,

as long as they have their own input

controls to adjust the volume level—by

means of an unbalanced (shielded)
instrument cable.

Alternatively, you may connect this

Output to an external mixer, recorder,

or interface. In this way, you do not
have to mic the speaker cabinet in
order to add it to the main mix, or to
record.

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Rear and Bottom Panel Features

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9. POWER CONNECTOR: This is where

to connect the optional power supply.

NOTE: Before plugging in the

power supply, make sure that
you are using the correct model power
supply for this product. Failure to do
so may result in damage to your unit
and void your warranty.

A DC-1G Power Supply may be
purchased from an Ampeg Dealer, or
you may purchase one directly from
the Ampeg Online Shop, at
shop.ampeg.com.

For residents outside of the US,

please request the model DC-1G
Power Supply when purchasing from

an Ampeg dealer or distributor in your
region.

BOTTOM PANEL ACCESS

This is where the 9V battery is housed.

Liquifier Analog Chorus

Remove each of the four screws by
turning them counter-clockwise. Be
sure to keep them in a safe place as

you will need them again!

10. 9V BATTERY: The Liquier Analog

Chorus pedal may be powered by 9V
battery instead of using a power supply.

As seen in the illustration below, it ts

nicely inside a compartment of the
circuit board, next to the edge of the
pedal.

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NOTE: Unplug the input cable when

not in use, as the 9V battery will drain
(and eventually die).

NOTE: When replacing the bottom of
the pedal, line up the rectangular foam
piece over the battery. Turn the screws

clockwise to ax to the bottom to the

pedal.

Removing the bottom is easy. Simply
start by placing the pedal top down on
a soft, dry cloth.

5

Suggested Settings

Liquifier Analog Chorus

Believing (Don’t Stop)

Space Invaderz

Nice & Easy

Nice Tremolo

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Suggested Settings - Continued

Liquifier Analog Chorus

Hollow

Inverted

In & Out

Warbly

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Block Diagram

LOW

DELAY

ANALOG

BBD BBD

LINES

MIXER

CONTROL

EFFECT LEVEL

Liquifier Analog Chorus

OUTPUTINPUT

DRY AUDIO

WET AUDIO

DELAY

CLOCKS

DEPTH

CONTROL

RATE

CONTROL

FREQUENCY

OSCILLATOR

INVERTER

TRUE-BYPASS SWITCHING PATH

HI-Z

JFET

BUFFER

HEAVY-DUTY

FOOTSWITCH

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Liquifier Analog Chorus

Technical Specications

Signal-to-Noise Ratio 82 dB (Eect Level 100% Wet)
94 dB (Eect Level 100% Dry)

Maximum Gain +0 dB (Unity)

Maximum Input Level 1.1V RMS (3.0V peak-peak) before clipping
(1.00% distortion), 100 Hz input

Frequency Response 100 Hz – 5 kHz, ±3.0 dB (100% Wet)
(Input Level 1.00 V peak-peak) 20 Hz – 20 kHz, ±0.5 dB (100% Dry)

Impedances 1 M (Input)
200 (Output)

Power Requirements Internal: 9V Battery
External: 9V DC, ≥60 mA, center negative
Maximum Current Draw: 56 mA at 9V DC

Size (H x W x D) 2.2 in x 2.6 in x 4.5 in
56 mm x 66 mm x 114 mm

Weight 0.6 lb / 0.3 kg (approximately)

The Liquifier Analog Chorus is housed in a corrosion resistant, die-cast zinc chassis, so be sure to clean it with
a dry, lint-free cloth. Never spray cleaning agents on the Liquifier Analog Chorus. Avoid abrasive cleansers which
would damage the finish.

Ampeg continually develops new products and improves upon existing ones. For this reason, the specifications
and information in this manual are subject to change without notice.

Warranty and Support

Visit WWW.AMPEG.COM to...

(1) ...identify WARRANTY coverage provided in your local market. Please keep your
sales receipt in a safe place.

(2) ...REGISTER your product.

(3) ...CONTACT Technical Support, or call 818-575-3600.

www.ampeg.com

26580 Agoura Road, Calabasas, CA 91302-1921 USA

© 2019 Yamaha Guitar Group, Inc. All rights reserved.

Ampeg and the Ampeg logo are trademarks or registered trademarks of Yamaha Guitar Group, Inc. in the U.S. and/or
other jurisdictions.

Yamaha Guitar Group, Inc.

Rev. A

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