When it comes to Bluesy cleans and fat lead tones, the Vertex Effects Steel String Supreme (Slight Return Edition) — based on serial #001 of a legendary six-figure Dumble Steel String Singer — is the only tone shaper you'll need in your arsenal. Whether you're front-ending a stage amp with the Supreme expanded all-analog preamp, feeding a little D-style sugar into your Amp Modeler, or even running straight into a Cab Simulator/IR Loader, this pedal is guaranteed to put a smile on your face.

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Steel String Supreme

Ultra-Phonix HRM recreates the much sought after Dumble™ HRM overdrive tone that pushed the tweaked Overdrive Special Amplifier into stardom. Amongst the limited amount of ODS amplifiers produced by the legendary amp maker, a handful were armed with EL-34 power amp tubes rather than the 6L6 tubes found in most ODS amps.  This gives the HRM edition of the Ultraphonix a quintessentially British voicing and EQ shift compared to the original version. The “Master” control determines the total output of the pedal. The “Volume” control adjusts how hard the pedal’s preamp is working, giving you more control over the amount of gain coming from the preamp. Turn up the “Accent” control to increase presence and slowly introduce more saturation into your signal. The “Ratio” control allows you to blend your distorted and clean signal, and the “Tone” knob allows you to accentuate different upper-mid frequencies, ranging from 800-1.6k Hz.

Demo by Sweetwater

Demo by Brett Kingman

Review by audiofanzine

Review by Stompbox Steals

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Review by The Gear Page

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Ultraphonix HRM

The Ultraphonix Special Overdrive MKII delivers the blooming midrange and screaming overdrive of the ultra-rare American boutique amplifiers that players have been coveting for decades. This overdrive emulates the the expansive midrange and strident cascading gain stages of the D*lightful amplifier this pedal is based on.  When you turn it on, it will unleash your guitar's full-throated potential with an articulate attack and smooth sustain that's reminiscent of players like Robben Ford and Larry Carlton. If you're a tone chaser, the Ultraphonix MKII Specialized Overdrive pedal will help you achieve the D-style tone you've been dreaming of that doesn’t require a mortgage to purchase!

Demo by Collin Littlejohn

Official Product Video

Review by bonedo

Review by AMAZONA

Ultraphonix MKII Overdrive

Get faithful recreation of the feel and tonality of the legendary Dumble Steel String Singer amp within a stompbox format with the Steel String Clean Drive from Vertex. It has been designed alongside the “Real Deal” Dumble Steel String Singer for real D-style tone, warmth, and touch sensitivity. It consists of Gain, Volume, and Filter knobs for adjusting the signal saturation, the output level of the effect, and the midrange emphasis respectively. EQ shaping, compression, boost, overdrive—the Steel String Clean Drive does it all.

Demo by kent

Demo by Mike Hermans

Steel String mk I

When it comes to Continuum cleans or searing Blues lead tones, the Vertex Effects Steel String MKII — based on serial #001 of a legendary six-figure Steel String Singer amplifier— is an amazing tone-shaper and mild overdrive in an über compact, pedalboard friendly, size.  Whether you're hitting the front end of your favorite tube amp to give it a little more D-Style character or breathing a little more life into a solid state or backline amplifier, the Steel String MKII is a must for those that revere the classic Steel String amplifier clean tone.  Short of having a $250,000 SSS amplifier in your arsenal, the Steel String MKII is the next best thing!

Review by delicious audio

Demo by Guitar Bonedo