EEIDI FX Dreivoost All-Tube High-Gain Boost

The Dreivoost All-Tube High-Gain Boost was created when Will from EEIDI FX / Third Age Amplifiers saw Fluff (Ryan Bruce) and Ola Englund on YouTube using TS style pedals to boost their Dual Rectifiers, and realized the amplifier tone could be preserved 100% by using a tube boost. This provided the gain kick they wanted with the choice of full range or treble boost. 11 years later, this powerful pedal will do just that…and more…

The Dreivoost is an all-tube boost running at 300vDC using a standard 9vDC center negative power supply. It has one standard gain stage plus a cathode follower for clean, low impedance buffered output. Like an amplifier, it requires an on/off switch and has a toggle for Treble/Full range EQ. It’s simple, dead quiet, and can throw a TON of gain at your amp.

With the I/O control off, it passes your signal just above unity. From 0-5 is a clean boost, and from 5-10 the gain ramps up considerably and starts compressing a bit. Think of it as a tube version of what people use a Tube Screamer for with high gain amps. It can be used just to warm up your tone going into a DAW or solid-state amp as well.

Utilizing just one knob and one tone toggle, you’d initially assume that the Dreivoost is a one-trick pony…well, you’d be right, but it does that one thing REALLY REALLY WELL. Pushing a good tube amp into just before or just beyond breakup is a magical thing to be able to do, and this crimson gem gets you there with ease and with gorgeous tone. Cheers to Will and EEIDI FX on this beauty that was in the works for over a decade – be sure to check out their Reverb.com shop for more info and more pedals, and you can hear the Dreivoost in action in our demo video below as well, cheers!

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