The Henretta Engineering Tremble Tank is a tremolo and reverb pedal that combines two of the company's existing circuits, the Crimson Tremolo and the Moody Blue Reverb, in a single top-mounted jack enclosure. Delicious Audio describes it as "a combo pedal that marries two existing circuits by the Saint Paul, MN-based company: the Crimson Tremolo and the Moody Blue Reverb"1. Pedal of the Day called it a pedal that "takes the Moody Blue Reverb and Crimson Tremolo and squishes them into a nice, top-mounted jack enclosure, perfect for any pedalboard"2.
What it does
The tremolo side is a volume modulation circuit that creates an effect similar to that found on classic amplifiers, with two controls, Depth and Speed2. The reverb side uses a "brick" style digital module, blending the effect in with your dry analog signal, so the dry path stays analog while the reverb itself is digital2.
Pedal of the Day described the reverb's range as "going from snappy slapback to spring reverb sounds to all-out ambient bliss"2. The Decay knob increases the reverb's decay time as you turn it up, with self-oscillation sounds coming on strong at around 4:00 or so on the knob2.
Controls and switching
| Control | Side | What it does |
|---|---|---|
| Depth | Tremolo | Sets the depth of the volume modulation2 |
| Speed | Tremolo | Sets the speed of the volume modulation2 |
| Decay | Reverb | Increases the reverb's decay time; self-oscillation from around 4:002 |
| Toggle | Order | Chooses Tremolo > Reverb or Reverb > Tremolo12 |
Each side of the Tremble Tank features its own footswitch, so you can use the reverb and tremolo independently, or in unison2. That means the pedal can serve as a tremolo alone, a reverb alone, or both at once, without needing two separate boxes.
The lone toggle switch chooses the order the effects go in your chain, either Tremolo > Reverb or Reverb > Tremolo2. Delicious Audio notes the same feature: "A toggle switch allows reversing the order of the effects"1. Pedal of the Day heard a difference between the two settings: "The T > R setting gives you a more intense Fender amp-style sound," while "the R > T gives off a more Vox-like vibe, with a more natural, smoother decay and room reverb tone"2.
Where it came from
Henretta Engineering is a Saint Paul, Minnesota-based company known for small, powerful, one-button effects pedals2. The Tremble Tank is one of its combination pedals: it pairs the Crimson Tremolo with the Moody Blue Reverb1. The company has combined its circuits before, as with the Henretta Engineering Planetarium, a combination of the Moody Blue Reverb and the Golden Years Phaser2.
What reviewers said
Pedal of the Day's 2019 review was strongly positive. The reviewer's verdict:
"the combination of these two effects is genius, and the array of sounds you can conjure up with just a few simple controls is truly astonishing"
Delicious Audio included the Tremble Tank in its buying guide to reverb pedals with tremolo in May 2023, highlighting the effect-order toggle as a distinguishing feature1.
Videos
Pedal of the Day
Questions
Can the Tremble Tank run tremolo and reverb separately?
Yes. Each side of the Tremble Tank has its own footswitch, so the reverb and tremolo can be used independently or together in unison. That makes it work as a standalone tremolo, a standalone reverb, or a combined effect, depending on which footswitches you engage.
What does the toggle switch on the Tremble Tank do?
The lone toggle switch chooses the order the two effects run in: either Tremolo into Reverb (T > R) or Reverb into Tremolo (R > T). Pedal of the Day found the T > R setting gives a more intense Fender amp-style sound, while R > T gives a more Vox-like vibe with a smoother decay and room reverb tone.
Is the Tremble Tank reverb analog or digital?
The reverb side uses a brick-style digital module, blended with your dry analog signal. So the effect itself is digital, but the pedal keeps your dry signal analog and mixes the digital reverb in alongside it.
Which Henretta pedals make up the Tremble Tank?
The Tremble Tank combines two existing Henretta Engineering circuits: the Crimson Tremolo and the Moody Blue Reverb. Delicious Audio describes it as a combo pedal that marries those two circuits from the Saint Paul, Minnesota-based company into one enclosure.
Does the Tremble Tank reverb self-oscillate?
Yes. The Decay knob increases the reverb's decay time as you turn it up, and Pedal of the Day reports wild self-oscillation sounds coming on strong at around 4:00 on the knob. Turned lower, the reverb runs from snappy slapback through spring-style sounds to ambient textures.
Sources (2)
- Best Reverb Pedals With Tremolo In 2023, Delicious Audio (delicious-audio.com), 2023-05-11
- Henretta Engineering Tremble Tank Tremolo Reverb, Pedal of the Day (www.pedal-of-the-day.com), 2019-06-29
