Pricing and availability

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Average Price: $215

High-end/Boutique

$50

$176+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 1 merchant for "Vertex Effects Steel String Supreme". Prices shown reflect NEW condition. Tracking began Apr 23, 2026.

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Description

Introducing the Vertex Effects Steel String Supreme - a versatile gear designed for the music enthusiasts and professionals alike. This impressive device is not just a guitar pedal but a full-fledged amplifier circuit housed in a compact, pedal-sized box. It's a 100% analog solid state preamplifier, designed to inject rich, warm tones into your music.

Derived from Vertex's standard Steel String MKII, the Supreme model boasts an independent EQ section and five additional tone-shaping controls. This flexible device is designed to fit seamlessly into your setup - whether you use it directly with your mixer or interface, pair it with your digital modeling amplifier, or use it in front of your tube amplifier.

The Steel String Supreme excels in delivering Mayer-style compressed clean and lead tones, replicating the sounds of a legendary six-figure tube amp. It's characterized by a fat, clean, compressed sound that infuses your signals with tube-like harmonics as you dial up the gain. The pedal's active EQ and Bright/Deep + Rock/Jazz switches offer a wide spectrum of tone-shaping capabilities, from subtle fattening and clean compression to full-on overdrive.

Key Features:

  • Based on model #001 of an original run of legendary 6L6 blues machines
  • A true amp in a box – designed to go into tube amp or direct to Cab Sim/IR Loader
  • Inspiring touch sensitivity, warmth, and sparkle
  • Versatile Gain and Level controls make this a capable clean boost or full-on overdrive
  • Active EQ, Bright/Deep switch, and Rock/Jazz switch supply plenty of tone-shaping potential
  • Rugged metal housing
  • Authentic D-style labels
  • True bypass switching preserves your signal between uses
  • Designed in California

Product specs

Available since January 2022
Overdrive Yes
Distortion No
Fuzz No
Metal No

FAQs

What kind of tones can I expect from the Vertex Effects Steel String Supreme for blues music?

The Vertex Effects Steel String Supreme is designed to emulate the clean, dynamic response of a Dumble-style amplifier, making it ideal for blues. It offers rich, warm overdrive tones with a smooth sustain, perfect for expressive, nuanced playing.

Does the Vertex Effects Steel String Supreme work well with both single-coil and humbucker pickups?

Yes, the Vertex Effects Steel String Supreme is versatile and works well with both single-coil and humbucker pickups, maintaining clarity and dynamics across different guitar types.

Is the Vertex Effects Steel String Supreme suitable for use with a bass guitar?

While primarily designed for electric guitars, the Vertex Effects Steel String Supreme can be used with a bass guitar, but it may not fully capture the low-end frequencies essential for bass tones.

What power supply is required for the Vertex Effects Steel String Supreme?

The Vertex Effects Steel String Supreme requires a standard 9V DC power supply, ideally with a center-negative polarity, which is common for most pedalboards.

How does the Vertex Effects Steel String Supreme differ from a typical overdrive pedal?

Unlike typical overdrive pedals, the Steel String Supreme focuses on replicating the clean, articulate tones of a high-end Dumble amp, offering a more transparent and dynamic response.

Vertex Effects

Vertex Effects

JM's "Continuum" Dumble Sound!

Video thumbnail for JM's "Continuum" Dumble Sound! by Vertex Effects

JM's "Continuum" Dumble Sound!

Vertex Effects

Vertex Effects

Video thumbnail for VERTEX Steel String SUPREME! Dumble Steel String Singer in a BOX! John Mayer/SRV Tone for days! by Buddy Blues

VERTEX Steel String SUPREME! Dumble Steel String Singer in a BOX! John Mayer/SRV Tone for days!

Buddy Blues

Buddy Blues

Video thumbnail for Vertex Effects Steel String Supreme Demo by Sweetwater

Vertex Effects Steel String Supreme Demo

Sweetwater

Sweetwater

Video thumbnail for Vertex Effects Steel String Supreme SRV Preamp Pedal Demo by Sweetwater

Vertex Effects Steel String Supreme SRV Preamp Pedal Demo

Sweetwater

Sweetwater

Video thumbnail for This NAILS the JM Tone! by Vertex Effects

This NAILS the JM Tone!

Vertex Effects

Vertex Effects

Video thumbnail for Vertex Steel String Supreme - Sound Demo (no talking) by Guitar Bonedo

Vertex Steel String Supreme - Sound Demo (no talking)

Guitar Bonedo

Guitar Bonedo

Video thumbnail for Vertex Effects Steel String Supreme Demo'd With an Amp by Sweetwater

Vertex Effects Steel String Supreme Demo'd With an Amp

Sweetwater

Sweetwater

Reviews

PROS

  • Emulates SRV and John Mayer tones well

  • Ideal for Stratocaster and Telecaster guitars

  • Offers a wide range of clean and crunchy sounds

  • Can be used as a boost

  • Features a Dumble sound emulation

  • Versatile toggle for bright/normal sound shaping

  • Functions effectively as a preamp in a looping rig

  • Pairs well with cab sim, overdrive, and delay for leads

  • Described as an "always on" pedal

  • Recognized for its unique tone-enhancing capabilities

CONS

  • Some toggle switch positions (e.g., between rock & jazz) may not be as advertised

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Vertex Effects Steel String Supreme.

Features and functionality

  • The Vertex Steel String Supreme is noted for its ability to add sustain and compression, boosting lower mid frequencies effectively.

    Source

Comparisons

  • Users highlight the Vertex as more of a "dirty boost" compared to the Keeley Katana's clean boost, making the latter more suitable for Mayer-style tones.

    Source
  • The Vertex Steel String Supreme is described as providing a "Dumble sound," but some users find this tone redundant when using a Dumble-style amp like the Ceriatone JM 100.

    Source
  • The Nux Steel Singer is often compared to the Vertex but differs significantly, leaning more towards overdrive than the Vertex's clean boost.

    Source

User experience

  • It has been noted that the pedal can be noisy when boosting mids, leading to increased noise levels when stacking with Klon or Screamer pedals.

    Source
  • Owners mention that the Vertex pedals, including the Steel String Supreme, often replicate well-known circuits without substantial modifications, leading to mixed opinions about their originality.

    Source

Use cases and applications

  • Owners report that the Vertex Steel String Supreme sounds great with hybrid or valve state amplifiers, enhancing their tonal versatility.

    Source

Value and pricing

  • The DemonFX version of the pedal is offered at a significantly lower price point, around £60, and closely resembles the Vertex in design and function.

    Source

Other

  • Concerns about Vertex's past practices, such as rebranding and misrepresenting existing circuits, may impact buyer trust despite the pedal's performance.

    Source

Critic Reviews

Vertex Effects Steel String Supreme: Can it get you that John Mayer Continuum tone in a pedal? - gearnews.com

gearnews.com

Vertex Effects Steel String Supreme is a promising contender for capturing that elusive John Mayer Continuum tone in pedal form. With versatile controls and an active EQ, it offers players a fantastic range of tonal options. However, the pedal's somewhat controversial backstory may raise eyebrows among discerning musicians. While it successfully emulates the boutique sound of high-end Dumble amps, some may question whether it truly delivers the full experience in a compact format. Overall, it’s an attractive option for those chasing a rich, dynamic tone without the hefty price tag of an original amp.

positive

3.0 out of 5

Based on 1 Review and 2 Ratings

5 star
4 star
3 star
2 star
1 star
S

Pretty awesome

Is it a Dumble? Well, no. But its sounds great to me thru a clean BJR. The EQ side works once dialed in as a good boost. I bought used and gambled on it but its highly used now. Dynamic to touch, a bit of glass, and punches thru.

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use Vertex Effects Steel String Supreme, it is most commonly used with the following gear.

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Community setups

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stfbertrand

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