Detail 01
Spring, Plate, and Room reverb
Three reverb selections are available.
Product detailSKU #1500000337804
KeeleyHydra Stereo Reverb & Tremolo Effects Pedal Rich Blue
dynamicambientpost rockshoegazebluespop
1/7
Independent shopping perspective
The Korena take
Keeley’s Hydra combines stereo reverb and tremolo processing in a compact blue pedal for guitar, bass, or keyboard signals. Choose Spring, Plate, or Room reverb, then pair it with Harmonic, Vibrato, or Sine Wave tremolo and set tremolo timing by tap tempo. Adjustable effect order and Alt Controls change the character of either effect, while Infinite Hold, selectable reverb trails, and three preset locations support quick changes during a set.
Strong match
Who this is for
- Building reverb-and-tremolo sounds for guitar, bass, or keyboard signal chains.
- Making timed tremolo changes with tap tempo during a performance.
- Rigs using TRS expression control, external tap tempo, or professional remote switching systems.
Consider the trade-offs
When to look elsewhere
- Players who need more than three saved presets available from the pedal.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Harmonic, Vibrato, and Sine Wave tremolo
Three tremolo character options are available, with tap tempo.
Detail 03
Effect order and Alt Controls
You can change the order of the two effects and alter their character.
Detail 04
2.68 x 2.28 x 4.72 inches
These are the pedal’s listed width, height, and depth dimensions.
Final check
Know before you order
- 01Confirm that three preset locations meet your saved-setting needs.
- 02External control requires the listed TRS expression-pedal or external tap-tempo inputs, or a compatible professional remote switching system.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can the Hydra save settings?
Yes. It stores up to three presets.
02Can I change the reverb and tremolo order?
Yes. The effect order is adjustable.
03Does it have reverb trails?
Yes. Reverb Trails can be engaged on the fly, and it also offers an Infinite Hold Reverb Trail.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsBody & build
- Color
- Blue
- Bridge Type
- Tremolo
1 detailsSize & weight
- Dimensions Wxhxd
- 2.68 inch x 2.28 inch x 4.72 inch
