The Amplified Nation Bigger Bloom is a hand-made overdrive preamp pedal that captures the sound and feel of Dumble-style amplifiers, the rare boutique amps whose overdrive channel pedals in this category try to replicate. Delicious Audio describes it as replicating "the tone of a Dumble Overdrive Special, with its smooth and singing sustains"1. It is part of a line of hand-made Dumble-style overdrives built by Amplified Nation, a family-run business, and follows the Big Bloom and the Double Bloom1.
The Bigger Bloom is the 2024 update of the original Big Bloom. Compared with the original, it adds slightly more gain and pronounced mids, with more clarity at higher gain settings and a more pronounced and punchy attack1. As of June 2025 it is the only Bloom version currently in production1.
A Dumble-style overdrive preamp
Dumble Overdrive Special amplifiers are the reference point for this whole category of pedals: hand-built, rarely sold, and prized for a smooth, singing overdrive voice. The Bigger Bloom is Amplified Nation's take on that sound in pedal form, and Pedal of the Day calls it "an Overdrive Preamp pedal that captures the sound and feel of legendary D-style amplifiers"2.
The lineage matters here. The original pedal was called the Big Bloom, and the 2024 update became the Bigger Bloom, adding slightly more gain and pronounced mids to the tone compared with the original, along with more clarity at higher gain settings and a more pronounced and punchy attack13. Pedal of the Day describes the updated version as delivering "more clarity at higher gain settings and delivers a throaty and forward attack"2.
The Big Bloom itself has some history in this category: it was one of seven D-style overdrive pedals compared in a That Pedal Show episode4.
The controls and the Jazz-Rock switch
The Bigger Bloom is a four-knob, two-switch pedal in a streamlined silver enclosure2. Here is what each control does:
| Control | What it does |
|---|---|
| Gain | Sets the drive amount, standard overdrive control3 |
| Volume | Sets the output level3 |
| Accent | Controls the high end1 |
| Tone | Sets the amount of mids1 |
| Jazz/Rock toggle (Jazz) | Scoops out the mids a bit, smoothing out the sound1 |
| Jazz/Rock toggle (Rock) | Delivers a more aggressive sound with increased gain1 |
The Jazz/Rock voicing switch is the character control of the pedal. In the Jazz position it scoops out the mids a bit and smooths out the sound, while the Rock position delivers a more aggressive sound with increased gain13. Between the voicing switch and the Tone knob, which sets the amount of mids, a player has two separate ways to shape where the pedal sits in a mix1.
The enclosure is equipped with top IN/OUT jacks, which keeps the pedal's board footprint compact since cables run vertically rather than out the sides2. Buyers can choose between a Tolex, painted or suede enclosure3.
The Bigger Bloom runs on a 9V power supply or a 9V battery2. Delicious Audio also notes that being able to run off battery or AC power is another plus for this pedal3, so it works both on a powered board and standalone.
What reviewers said
Published coverage of the Bigger Bloom has been positive. Delicious Audio, which added the pedal to its Dumble-style overdrive guide in June 2025, writes that "The Bigger Bloom meets the standards of high-end gear, being built with the utmost quality components," and notes its $479 price tag in the same breath1.
Pedal of the Day reviewed the pedal in June 2025 and came away impressed:
"I love when you turn on a pedal for the first time and it instantly captivates your brain and eardrums2."
The reviewer found the pedal instantly captivating, with "great sounds at any settings" and a "wide range and killer tones"2.
Videos
The Studio Rats
R.J. Ronquillo
Mike Hermans
Questions
What is the difference between the Big Bloom and the Bigger Bloom?
The Bigger Bloom is the 2024 update of the original Big Bloom. It is built on the same platform but adds slightly more gain and more pronounced mids, with more clarity at higher gain settings and a more pronounced and punchy attack. The Bigger Bloom is the only Bloom version currently in production.
Can the Bigger Bloom run on a battery?
Yes. The enclosure can be run off a 9V power supply or a 9V battery, so it works on a pedalboard with a standard adapter or standalone on a battery.
Is the Amplified Nation Bigger Bloom still in production?
Yes. As of June 2025 the Bigger Bloom is the only Bloom version currently in production, following the Big Bloom and the Double Bloom in Amplified Nation's line of hand-made Dumble-style overdrives.
Where are the jacks on the Bigger Bloom?
The input and output jacks are on the top of the enclosure, not the sides. That keeps the pedal's footprint tight on a pedalboard, since the cables run up and away rather than out to the left and right.
What is the Double Bloom?
The Double Bloom is an earlier pedal in Amplified Nation's line of hand-made Dumble-style overdrives. The Bigger Bloom follows in the footsteps of the Big Bloom and the Double Bloom, but it is the only version currently in production.
Sources (4)
- Amplified Nation Bigger Bloom D-Style Drive, Delicious Audio, 2025-06-12
- Amplified Nation Bigger Bloom Overdrive Preamp, Pedal of the Day, 2025-06-01
- Best Dumble-Style Pedals For Your Needs & Budget, Delicious Audio, 2024-09-25
- Are You Dumble? Seven of the best D-style pedals. And a Boss BD-2, That Pedal Show, 2015-12-18
