The WR Amplifying Goliath Tube Bass Emphasizer is a tube preamp for bass, built as a limited edition of hand-built units. RockBoard's PedalPedia describes it as "an exciting new development for bass players wanting the richer, enhanced tonality associated with tubes," using "specialised, limited availability, low voltage tubes to create wonderful tone."1 It sits in the preamp category alongside other preamp pedals on a bass board.
What it does
The Goliath is a preamp: it takes the signal from your bass and shapes and strengthens it before it reaches the rest of your chain or an amp. What sets it apart from solid state preamps is the tube stage. WR Amplifying's design runs specialised low voltage tubes, which lets a tube circuit work in a compact pedal without the high plate voltages of an amp's preamp section. The maker's stated aim is the richer, enhanced tonality that players associate with tubes.1
Power and practical notes
The Goliath runs on 12V DC with a center negative plug and draws 410mA.1
At 410mA, the Goliath draws more current than most pedals and needs a 12V DC center negative supply output rated to cover it. It will not run from a low-current output or share a daisy chain with other pedals.
WR Amplifying publishes an English manual for the Goliath Standard on its own site.1
Videos
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Questions
What kind of pedal is the Goliath Tube Bass Emphasizer?
It is a preamp for bass, made by WR Amplifying. The circuit is analog and built around specialised, limited availability low voltage tubes. WR Amplifying describes it as a development for bass players who want the richer, enhanced tonality associated with tubes, and each unit is hand-built and produced as a limited edition.
What power does the Goliath need?
The Goliath runs on 12V DC with a center negative plug and draws 410mA. That current draw is high for a pedal, so it needs its own dedicated power supply output rather than a shared daisy chain, and it will not run from a standard 9V pedal supply.
Sources (1)
- Goliath Tube Bass Emphasizer by WR Amplifying, RockBoard PedalPedia, 2026