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Electro-Harmonix TURNIP GREENS - User Manual

Electro-Harmonix TURNIP GREENS
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TURNIP GREENS
Soul Food Overdrive + Holy Grail Max Reverb
Congratulations on your purchase of the Turnip Greens, a combination of our transparent
Soul Food overdrive and lush Holy Grail Max reverb. Beyond just combining these two
great effects into one box, we added some bells and whistles to help inspire you to create
new sonic landscapes.
The Soul Food delivers a wide range of sounds from sweet clean boosts for added volume,
to just a touch of dirt for livening up your sound, to full-on overdrive. Soul Food has plenty
of volume on tap to push your amplifier into saturation, delivering distortion that is actually
created by your amp! It can also do wonders when placed in front of other dirt pedals,
pushing them into new worlds of distortion. Whatever your style or rig, the Soul Food gives
your tone a lift in all the right places without compromising it.
The Holy Grail Max delivers four types of studio quality reverb: SPRING, HALL, PLATE and
REVERSE all designed for the discerning guitarist but also great with other instruments on
stage or in the studio. Included is a newly designed analog wet/dry control which provides
a constant volume curve as you turn the BLEND knob from fully dry to fully wet while also
keeping your dry signal analog through the pedal.
WARNING: Your Turnip Greens comes equipped with an Electro-Harmonix 9.6DC-200BI
power supply (same as used by Boss
®
& Ibanez
®
: 9.6 Volts DC 200mA). The Turnip Greens
requires 125mA at 9VDC with a center negative plug. Using the wrong adapter may
damage your unit and void the warranty.
SOUL FOOD CONTROLS
DRIVE Knob Controls the amount of input gain. As you turn DRIVE clockwise, the
overdrive ranges from clean boost, in the fully counter-clockwise position, to classic
distortion, in the fully clockwise setting. There are many great sounds found within the full
range of the DRIVE knob, we recommend experimenting with different positions in both
halves of the DRIVE knob to find just the right amount of grit for your needs. In addition,
turning DRIVE clockwise will bring out more mids in your tone.
TREBLE Knob – Acts as a tone control. When set to 12 o’clock (50%), the tone is neutral.
As you turn TREBLE clockwise from the 12 o’clock setting, the treble gain increases making
your overall sound brighter. As you turn TREBLE counter-clockwise from the 12 o’clock
setting, the high end is reduced giving you a bassier sound.
VOL Knob – Sets the output level of the Soul Food section of the Turnip Greens. As VOL is
turned clockwise, the output volume increases.
OVERDRIVE Footswitch and LED The OVERDRIVE footswitch selects whether the
Soul Food section is engaged or in bypass mode. When the Soul Food is engaged, its
2
corresponding LED is lit. An internal Bypass Mode switch is included to select between True
Bypass and Buffered Bypass. See below for more information on the internal switch.
HOLY GRAIL MAX CONTROLS
REVERB Switch Knob This rotary switch chooses the reverb mode. Clockwise, the
modes are SPRING, HALL, PLATE and REVERSE.
TIME Knob Adjusts the decay time, or reverb length/size, for the SPRING, HALL and
PLATE reverbs. In REVERSE mode, the TIME knob sets the length of time between striking
a note and the reverb fade-in. While in PLATE mode, when TIME is set to its maximum
position, the reverb decay is over 30 seconds creating a lush reverb wash with each new
note.
BLEND Knob Controls the wet/dry mix from 100% Dry (counter-clockwise position) to
100% Wet (clockwise position). As the BLEND knob is turned, the overall output volume
remains nearly constant. Your Dry signal remains analog from input to output through the
Holy Grail Max section of the Turnip Greens.
REVERB Footswitch and LED The REVERB footswitch selects whether the Holy Grail
Max is engaged or in True Bypass mode. When the effect is engaged, its corresponding
LED is lit.
EFFECT ORDER Switch This toggle switch, located in the middle of the Turnip Greens,
selects which effect is first in the signal chain. With the switch to the right, the signal chain
is OD Reverb, which produces a sound most players are used to their boosted tone
with some added reverb. With the switch to the left, the signal chain is Reverb OD,
which produces a slightly different and interesting sound. Now the reverb is being boosted
by the overdrive which, when used in conjunction with pedals in the effects loop, can
create some very lush textures.
INPUT Jack – This ¼” jack is the audio input for the Turnip Greens. The input impedance
is 1M.
OUTPUT Jack This ¼” jack is the audio output from the Turnip Greens. The output
impedance ranges from 500 to 3.3k.
SEND Jack – This ¼” jack can be used to put effects in the signal path between the Soul
Food and Holy Grail Max to expand its sonic capabilities. This output can also be used to
split your signal to a separate effects chain or amplifier input.
RETURN Jack This ¼” jack must be used in conjunction with the SEND jack. Connect
this jack to the output of the effect(s) in the loop.
Internal Bypass Mode Switch If you remove the Turnip Greens’ bottom cover, you
will see a small switch on the board that holds the footswitch for the Soul Food. It is
located in the bottom-left area of the pedal, below the INPUT jack. Above the switch is the
label TRUE BYPASS and below the switch is the label BUFFERED.
When the switch is set to TRUE BYPASS, its upper position, bypass for the Soul Food
section will be True Bypass. When the switch is set to BUFFERED, its lower position, bypass
will be the Soul Food’s Buffered Bypass. The switch is normally set to BUFFERED in the
factory.
In True Bypass mode, when the Turnip Greens is set to bypass, the INPUT jack is
connected directly to the AMP jack and nothing else. In Buffered Bypass mode, the bypass
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Summary

Soul Food Controls

DRIVE Knob

Controls the input gain, ranging from clean boost to classic distortion.

TREBLE Knob

Acts as a tone control, affecting brightness and bass response.

VOL Knob

Sets the output level for the Soul Food section.

OVERDRIVE Footswitch and LED

Engages or bypasses the Soul Food section; LED indicates status.

Holy Grail Max Controls

REVERB Switch Knob

Selects reverb modes: SPRING, HALL, PLATE, REVERSE.

TIME Knob

Adjusts decay/length for reverb modes, affecting size and fade-in.

BLEND Knob

Controls wet/dry mix, maintaining near-constant output volume.

REVERB Footswitch and LED

Engages or bypasses Holy Grail Max; LED indicates status.

EFFECT ORDER Switch

Selects signal chain order: OD -> Reverb or Reverb -> OD.

Input and Output Jacks

Audio input (1MΩ) and output (500Ω-3.3kΩ).

Send and Return Jacks

For connecting external effects in the signal path.

Internal Bypass Mode Switch

Internal switch to select Soul Food bypass mode: True or Buffered.

Reverb Descriptions

SPRING Reverb

Simulates spring reverb from classic amps; TIME knob controls size and decay.

HALL Reverb

Simulates large spaces; TIME knob controls decay time for reverberant space.

PLATE Reverb

Emulates metal plate reverb; TIME knob increases decay time.

REVERSE Reverb

Emulates reverse reverb fade-in; TIME knob sets fade-in length.

Important Information and Compliance

9 V Power Jack

Connects the supplied 9VDC adapter; draws 125mA.

Removing Bottom Cover

Instructions for accessing internal switches.

Warranty Information

Details on product warranty, registration, and service.

FCC Compliance

Information regarding compliance with FCC rules for digital devices.

Overview

The Electro-Harmonix Turnip Greens is a combination effects pedal featuring both the transparent Soul Food overdrive and the lush Holy Grail Max reverb. This device is designed to inspire new sonic landscapes for guitarists and other instrumentalists.

Function Description:

The pedal integrates two distinct effects:

  • Soul Food Overdrive: This section offers a wide range of gain, from sweet clean boosts for volume enhancement to a touch of dirt for livening up sound, and full-on overdrive. It provides ample volume to push an amplifier into saturation, generating distortion from the amp itself. It can also be used to drive other dirt pedals, expanding their sonic capabilities.
  • Holy Grail Max Reverb: This section delivers four types of studio-quality reverb: SPRING, HALL, PLATE, and REVERSE. It features a newly designed analog wet/dry control, ensuring a constant volume curve as the BLEND knob is adjusted from fully dry to fully wet, while maintaining an analog dry signal path through the pedal.

Important Technical Specifications:

  • Power Supply: The Turnip Greens requires a 9.6VDC 200mA center-negative power supply (such as the Electro-Harmonix 9.6DC-200BI, Boss®, or Ibanez® style AC Adapters). The pedal itself draws 125mA at 9VDC. Using an incorrect adapter may damage the unit and void the warranty.
  • Input Impedance: The INPUT Jack has an impedance of 1MΩ.
  • Output Impedance: The OUTPUT Jack's impedance ranges from 500Ω to 3.3kΩ.
  • Reverb Decay Times: In PLATE mode, when the TIME knob is set to maximum, the reverb decay can exceed 30 seconds, creating a lush wash.
  • Bypass Modes: Both the Soul Food and Holy Grail Max sections can operate in either True Bypass or Buffered Bypass mode. The Soul Food section has an internal switch to select between these modes, with Buffered Bypass being the factory default.

Usage Features:

Soul Food Controls:

  • DRIVE Knob: Controls the amount of input gain, ranging from clean boost (fully counter-clockwise) to classic distortion (fully clockwise). Turning DRIVE clockwise also introduces more mids into the tone.
  • TREBLE Knob: Functions as a tone control. At 12 o'clock (50%), the tone is neutral. Turning clockwise increases treble gain for a brighter sound, while turning counter-clockwise reduces high end for a bassier sound.
  • VOL Knob: Sets the output level of the Soul Food section. Turning clockwise increases output volume.
  • OVERDRIVE Footswitch and LED: Engages or bypasses the Soul Food section. The corresponding LED indicates engagement.

Holy Grail Max Controls:

  • REVERB Switch Knob: A rotary switch to select one of four reverb modes: SPRING, HALL, PLATE, and REVERSE.
  • TIME Knob: Adjusts the decay time or reverb length/size for SPRING, HALL, and PLATE reverbs. In REVERSE mode, it sets the length of time between striking a note and the reverb fade-in.
  • BLEND Knob: Controls the wet/dry mix from 100% Dry (counter-clockwise) to 100% Wet (clockwise). The overall output volume remains nearly constant, and the dry signal remains analog.
  • REVERB Footswitch and LED: Engages or bypasses the Holy Grail Max section. The corresponding LED indicates engagement.

Shared Controls & Connections:

  • EFFECT ORDER Switch: A toggle switch to select the signal chain order.
    • Right Position (OD → Reverb): Boosted tone with added reverb, a common setup.
    • Left Position (Reverb → OD): Reverb is boosted by the overdrive, creating different and potentially lush textures, especially when used with effects in the loop.
  • INPUT Jack: The 1/4" audio input for the pedal.
  • OUTPUT Jack: The 1/4" audio output from the pedal.
  • SEND Jack: A 1/4" jack for placing effects in the signal path between the Soul Food and Holy Grail Max. It can also split the signal to a separate effects chain or amplifier input.
  • RETURN Jack: A 1/4" jack used in conjunction with the SEND jack to connect the output of effects in the loop.
  • 9V Power Jack: Connects the supplied AC adapter to the pedal.

Reverb Descriptions:

  • SPRING: Simulates classic guitar amp spring reverb. TIME controls both spring size and overall decay.
  • HALL: Simulates reverberations in large spaces like concert halls. TIME controls decay time, creating spaces from a room to a large hall.
  • PLATE: Emulates metal plate reverbs found in high-end recording studios (1960s-70s). It's a smooth, tonally balanced reverb suitable for various instruments. TIME increases decay time.
  • REVERSE: Emulates the reverse reverb trick where a note's reverb fades-in. The HG Max works in real-time, creating reverse reverb after the note is sounded. TIME sets the fade-in length. Short TIME settings can produce a slap-back echo.

Maintenance Features:

  • Internal Bypass Mode Switch (Soul Food): To change the bypass mode for the Soul Food section (between True Bypass and Buffered Bypass), the bottom cover of the pedal must be removed. This involves unscrewing the four screws on the bottom. The switch is located in the bottom-left area of the board, below the INPUT jack, with "TRUE BYPASS" labeled above and "BUFFERED" labeled below. Users are advised not to touch the circuit board while the bottom plate is off to avoid damaging components.
  • Warranty Information: The product comes with a one-year warranty against defects in materials or workmanship for original purchasers from authorized retailers. Online registration is available at http://www.ehx.com/product-registration. For service, customers in the USA and Canada must obtain a Return Authorization Number (RA#) from EHX Customer Service.
  • FCC Compliance: The device has been tested and found to comply with Class B digital device limits under part 15 of the FCC Rules. Users experiencing interference are advised to reorient/relocate the receiving antenna, increase separation between equipment and receiver, connect equipment to a different circuit, or consult a dealer/technician. Unauthorized modifications could void the user's authority to operate the equipment.

Electro-Harmonix TURNIP GREENS Specifications

General IconGeneral
BrandElectro-Harmonix
ModelTURNIP GREENS
CategoryMusic Pedal
LanguageEnglish

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