Guitar Systems

Guitar Systems TrebleTool Standard


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The "TrebleTool" is a great sounding pedal, based on the "Holy Grail" of Treble-Boosters, the Dallas Rangemaster. But it wouldn`t be a Guitarsystems product if they hadn't have added some extra features!

Unlike any other, this Treble booster has a switchable impedance conversion that will allow you to put the pedal into a looping system or even play it with a wireless system. Combined with the ultra transparent sound and the easy to use tone controls, the TrebleTool is the booster for the 21st Century!

Technology concept
Like the original Rangemaster, the core of the TrebleTool Standard© is a single stage transistor preamplifier based on a selected NOS germanium transistor with the correct technical specifications combined with a high pass filter. It creates a transparent dynamic sound that will cut through the mix without being perceived as over the hill. The TrebleTool Standard© is basically a Rangemaster extended with features that increase operating flexibility and solve short comings of the original design but do not change the original Rangemaster sound character.

Dallas Rangemaster History
The main concept of the TrebleTool© is based on the Dallas Rangemaster, a germanium transistor based treble booster developed around 1965 in London, UK by a company called John E. Dallas & Sons Limited. The Rangemaster was used to drive Tube Amplifiers into saturation because (high) gain Tube Amplifiers were not available during the 60‘ties. Famous guitar players who created their unique sound with a treblebooster are: Rory Gallagher, Eric Clapton, Ritchie Blackmore, David Gilmour, Bryan May and Tony Iommi.

Tim Pierce: "It sounds as if your amp was re-tubed"


Gain control adjust the gain up to 37 dB
Continuous variable range control (T.M.F.) - dial in the amount of bass with a specific guitar type or element combination
Tone control - adjust the amount of treble for a specific amplifier
Impedance Conversion Interface (on/off) - converting an active input signal (EMG pickups, Wireless system) to a signal suited for the TrebleTool and thus retaining the character of the effect
The PaulSwitch® - robust true bypass footswitch to switch effect on/off & to avoid tone sucking in bypass operation
Pre warning Battery low indication - giving the opportunity to changeover batteries before the effect stops working
External power supply - (noise reduced) providing the option to use an external power supply without inducing noise or changing the character of the sound.
Reverse and over voltage protection - to protect the sensitive germanium transistor and keeping the pedal running for many years to come
Radio Frequency Interference (RFI) suppression - avoiding radio signal reception when using high gain setting in combination with turning down guitar volume
New Old Stock (NOS) Germanium transistor - a selected and individually audited germanium transistor with the right gain, low leakage current and lowest noise to create the best possible sound



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