The EarthQuaker Devices Scrolls Bass Overdrive & EQ Effects Pedal is a versatile dual-channel sign...The EarthQuaker Devices Scrolls Bass Overdrive & EQ Effects Pedal is a versatile dual-channel signal processor for electric bass. It features a tube amp-like drive channel with adjustable gain and tone, and an active EQ channel with Bass, Middle, and Treble controls, plus a Variable Frequency control for precise tone shaping. Additional switches like Deep, Process, and Bright offer quick sound modifications. The pedal includes a buffered parallel out, an integrated effects loop positioned between the Drive and EQ stages, and a balanced XLR direct out with analog filtering to emulate a speaker cabinet. A Ground Lift switch helps reduce noise in XLR connections. This pedal is designed for flexible tone shaping, overdrive control, and routing options for both live and studio use, making it a powerful tool for any bassist.
This guide is for bassists seeking comprehensive control over their tone and dynamics. The EarthQuaker Devices Scrolls Bass Overdrive & EQ Effects Pedal offers a dual-channel approach to signal processing, providing both tube-like overdrive and precise EQ shaping. A potential caveat is its advanced feature set, which may require some time to master for new users. Key features include a dedicated overdrive channel, an active EQ with flexible controls, integrated effects loop, and a speaker-emulating XLR output.
All features
Model Part Number
EQSCRLV1
Brand
EarthQuaker Devices
Extended Product Information
FAQs
What type of power supply does the Scrolls pedal need?
The pedal requires a standard 9V DC power supply with a center-negative tip. Ensure the power supply provides at least 100mA of current.
Can I use the Drive and EQ channels independently?
Yes, you can use either the Drive channel or the EQ channel independently by engaging or bypassing them. You can also use them together in series.
What is the purpose of the Variable Frequency control?
The Variable Frequency control allows you to select the specific frequency that the Middle control will affect, offering precise control over the midrange character of your tone.
Does the XLR output require phantom power?
No, the pedal does not require phantom power. It is designed to provide a line-level signal to your mixer or audio interface.
Where is the effects loop located in the signal chain?
The effects loop is positioned between the Drive channel's output and the EQ channel's input, allowing you to process specific effects after overdrive but before final EQ shaping.
What does the 'Deep' switch do?
The 'Deep' switch adds a low-end boost to the signal, providing more fullness and weight to your tone, especially useful for playing in drop tunings or when a more massive sound is desired.
Is this pedal suitable for 5-string basses?
Yes, the pedal is designed for electric bass and features robust low-end capabilities, making it suitable for 5-string basses and extended range instruments.
Troubleshooting
No sound output
Verify that the pedal is powered on. Check all cable connections at the input, output, and amplifier. Ensure the correct input and output jacks are being used. Test with a different instrument cable.
Hum or buzz from XLR output
Engage the `GROUND LIFT` switch. Try a different XLR cable or a different input channel on your mixer/interface. Ensure your power supply is properly isolated.
Distorted sound when Drive is off
Ensure the Drive channel is bypassed correctly. Check that the Gain knob on the Drive channel is turned down if you intend to use it only for its tone shaping. Confirm the `PROCESS` switch is in the desired position.
EQ controls have no effect
Confirm that the EQ channel is active and not bypassed. Ensure the `PROCESS` switch is not set to bypass the EQ section entirely. Check that the EQ controls are not all set to their center positions if you are expecting a significant change.
Pros and Cons
Pros
Provides extensive tonal flexibility with its dual-channel design.