The Caline Mariana is a compact reverb pedal that packs seven modulated reverb modes into a single small enclosure. RockBoard's PedalPedia describes it as "an amazingly versatile tool to create sonic soundscapes the like of which you have only dreamed of," and positions it as offering "amazing value for money"1.
The seven modes
Each of the seven presets is a reverb with a different kind of modulation layered on top, and the pedal's effect type spans reverb, tremolo, flanger, vibrato and pitch shifting depending on the mode selected1. The modes and what the maker and press say each one does:
| Mode | What it does |
|---|---|
| The Abyss | A deep cavernous reverb with a long decay and a subtle, slow modulation for epic soundscapes1 |
| Hot Springs | A spring reverb with hidden depths and a long decay2 |
| The Bends | One of the seven modulated reverb modes2 |
| Propeller | A versatile organic sounding tremolo reverb that takes you from lightly pulsating to deeply throbbing tones2 |
| The deep | A lush flanger and reverb combination for ambient swells and shimmering chords2 |
| Mermaids | Haunting and dissonant modulation designed to replicate the song of the mermaid2 |
| The Kraken | A pitch shifting reverb2 |
The spread is wide: two of the modes stay close to conventional reverb territory (a cavern and a spring), while others lean on tremolo, flanging or pitch shifting to move the reverb itself. For a player, that means the Mariana can sit on a board as a single ambient reverb or cover several modulation-adjacent jobs at once. If you want to compare it with other Caline reverbs, the Caline CP-508 Wonderland was reviewed alongside it as an ambient reverb machine3, and the Caline CP-98 Seahawk Reverb, Caline G-008 Barn Owl Reverb and Caline CP-44 Reflector Spring Reverb cover more conventional reverb ground. For the wider category, see the site's Reverb Pedals page.
Controls
The Mariana keeps things simple: three knobs, labeled A, B and C, that control different parameters depending on the selected mode. RockBoard's listing puts it this way: "Control individual parameters as shown on the pedal. Each setting creates different interactions with these three controls"1. Delicious Audio's buying guide describes the same arrangement as "three knobs that control different parameters depending on the selected mode"4.
Pedal of the Day's reviewer found room in that layout: "With three independent controls affecting each of the seven presets, there is literally no end to the possibilities"3.
Because the knobs change meaning with each mode, the practical workflow is to pick a mode first and then learn what A, B and C do for that setting, rather than treating them as fixed mix, tone and decay controls143.
Power
The Mariana needs its own 9V DC center negative adapter, which is not included, and draws 100 mA12. Check that your supply has the headroom before adding it to a daisy chain.
Both the maker's listing and Delicious Audio's review agree on the requirements: 9V DC, center negative, 100 mA current draw12. Delicious Audio adds plainly: "Use 9V center negative Adapter (not included)"2.
What reviewers said
Delicious Audio's review, published in August 2023, was positive enough that the site added the pedal to its list of the Best Modulated Reverb Pedals2. The same site's buying guide called it "super-affordable" and highlighted the seven modulated reverb types and the three mode-dependent knobs4. Pedal of the Day reviewed the CP-507 in August 2023 as part of a series on new Caline pedals, alongside the CP-508 Wonderland, describing the Mariana as cramming seven "Out-of-this-World" modulated reverbs into one compact pedal3.
Videos
Perry Frank
Pedal of the Day
Ryan Lutton
Questions
What power supply does the Caline Mariana need?
The Mariana runs on a 9V DC, center negative adapter, which is not included with the pedal. Both the maker's listing and Delicious Audio's review give the same requirement, so any standard 9V center negative supply that can deliver the pedal's 100 mA current draw will run it.
Is the Caline Mariana analog or digital?
RockBoard's PedalPedia listing for the Mariana gives the circuit type as analog. The pedal's seven modes cover reverb, tremolo, flanger, vibrato and pitch shifting effects, so it is worth reading the mode descriptions to hear what each setting does before relying on it for a particular sound.
What are the seven presets on the Caline Mariana?
The seven modes are The Abyss, Hot Springs, The Bends, Propeller, The deep, Mermaids and The Kraken. They range from a deep cavernous reverb with slow modulation, through a spring reverb and a tremolo reverb, to a flanger-plus-reverb blend, a dissonant mermaid-style modulation and a pitch shifting reverb.
How much current does the Caline Mariana draw?
The Mariana draws 100 mA. RockBoard's PedalPedia listing and Delicious Audio's review both give the same figure, so a supply rated at or above 100 mA at 9V is what the pedal needs.
Sources (4)
- Mariana by Caline, RockBoard PedalPedia, 2026
- Caline Mariana Modulated Reverb, Delicious Audio, 2023-08-11
- Caline CP-507 Mariana Modulated Reverbs / CP-508 Wonderland Ambient Reverb Machine, Pedal of the Day, 2023-08-26
- The Best Reverb Pedals With Modulation Or Fuzz/Distortion In 2023, Delicious Audio, 2023-01-30
