The DPE Pedals DC-30 EF86 Tube Preamp is a valve preamp pedal from DPE Pedals, announced in July 2025. It is built around a genuine EF86 (6267) pentode tube running at high voltage, and it is aimed at players who want the sound of an old-style tube preamp stage on a pedalboard. Delicious Audio's Paolo De Gregorio described the circuit as excelling at jangle-prone cleans and dynamic mid-gain grit, making it ideal for players seeking vox-like chime or British-voiced drive1. It belongs to the wider family of preamp pedals that put an amplifier-style gain stage in front of an amp.
Where it came from
The DC-30 is inspired by the handwired EF86 tube preamps of the early 1990s21. Delicious Audio reported the pedal's release on 24 July 2025, and Pedal of the Day reviewed it a month later on 24 August 202521. According to Delicious Audio, each unit is handwired and tested, mirroring the craftsmanship of vintage EF86 preamps1.
The EF86 tube and what it does to your sound
The EF86 pentode is the point of the pedal. Running at high voltage, it delivers what Delicious Audio calls the tube's signature response: glassy cleans at lower gain1. Pedal of the Day's reviewer put it more directly:
"If you ever wanted to get the crystal clear crunch of the classic EF86 Tube Preamps, this is IT!"
Because the preamp is a tube stage rather than a solid-state gain circuit, it sits in the same territory as an amp's front end: it can serve as a clean foundation, a mid-gain drive voice, or a boost into an already-driven amp.
Controls and channels
The DC-30 is a two-stage switchable design, letting you switch between a Clean channel and a Dirty channel, each with independent Gain and Volume controls21. That means the two sounds are set up separately and recalled by switching channels, rather than one set of knobs compromising both.
| Control | What it does |
|---|---|
| Gain (per channel) | Sets drive for the Clean and Dirty channels independently2 |
| Volume (per channel) | Sets level for the Clean and Dirty channels independently2 |
| Pre-gain Tone | Midrange sculpting ahead of the gain stage1 |
| Cut switch | Trims high frequencies1 |
| Depth (4-position rotary) | Adjusts low-end response; lets more low end travel through the signal21 |
The Depth control is worth noting for players dialing in the pedal with single coils or humbuckers: Pedal of the Day describes it as a four-position rotary switch that allows you to let more low end travel through your signal2, while Delicious Audio describes the same control as a four-way rotary that adjusts low-end response1.
What reviewers said
Pedal of the Day's reviewer was strongly positive about the pedal's sound and versatility2:
"The DC-30 EF86 Valve Preamp exceeded all my expectations, taking the world of preamp pedals to another level"
Delicious Audio's coverage, from the pedal's announcement, framed it as a circuit for players after vox-like chime or British-voiced drive, with the handwired construction as part of the pitch1.
Videos
Buddy Blues
Mike Hermans
Pedal of the Day
Questions
Does the DPE DC-30 use a real tube?
Yes. The heart of the circuit is an EF86 (6267) pentode valve running at high voltage, not a transistor approximation of one. Pedal of the Day's reviewer described the pedal as delivering the crystal clear crunch of the classic EF86 tube preamps, and Delicious Audio notes the tube's signature response of glassy cleans at lower gain.
What does the Depth switch do on the DC-30?
Depth is a four-position rotary switch that adjusts the pedal's low-end response. Pedal of the Day describes it as letting more low end travel through your signal, so you can set how much bottom the preamp passes through to your amp.
Are the Clean and Dirty channels adjustable separately?
Yes. The DC-30 is a two-stage switchable design that moves between a Clean channel and a Dirty channel, and each channel has its own independent Gain and Volume controls, so the two sounds can be set up and switched between without affecting one another.
Is the DPE DC-30 handwired?
Yes. According to Delicious Audio, each unit is handwired and tested, mirroring the craftsmanship of vintage EF86 preamps. The circuit itself is inspired by the handwired EF86 tube preamps of the early 1990s.
Sources (2)
- New Pedal: DPE Pedals DC-30 EF86 Tube Preeamp, Delicious Audio, 2025-07-24
- DPE Pedals DC-30 EF86 Valve Preamp, Pedal of the Day, 2025-08-24
