ThroBak Effects Overdrive Boost


If you're a TME regular, you will surely have heard the name ThroBak. The good folks from Grand Rapids, MI supply the fantastic sounding pickups in our Collings electric guitar builds. Well, not only does ThroBak make pickups, they also make some of our favorite effects pedals. Only made sense to offer another flavor of ThroBak products to our customers! 

Up first is the Overdrive Boost. ThroBak has reproduced and improved the circuit of the original Colorsound Power Boost pedal (also known as the Colorsound Overdriver). The original was used by David Gilmour, Jeff Beck, and other pros to become an integral part of 70s signature tones. This pedal was also a favorite of Marc Bolin and is considered by many to be the best overdrive/boost ever made.

This vintage silicon transistor circuit was made popular for its ability to bring body, dimension, and tonal flexibility to a single channel tube amp. It can provide everything from a substantial and extremely transparent clean boost to all out silicon fuzz and every tonal variation in-between. The flexible and interactive bass and treble controls can add treble bite and chime to an overly bassy amp, or add a meaty low end to a thin sounding amp. This pedal is almost like its own little amp in a box that will bring amazing clean and distorted tones to any tube amp. 

  • 3 Carefully selected TO-18 metal can Silicon transistors, as used in the original circuit.
  • Externally switchable pre gain control with internal pot allowing you to dial in the best pre gain for your guitar.
  • Switchable Germanium transistor and Germanium diode pair.
  • Bias adjustment for transistors ensuring a perfectly tuned pedal.
  • Master volume & true bypass footswitch.
  • Gain, Bass and Treble adjustment.

Free Freight: The Music Emporium is happy to provide free ground shipping on all merchandise priced over $100 and purchased online at This offer applies to all merchandise shipped within the 48 continental US States.* If you wish to expedite your shipment or your order doesn't qualify, we provide competitive rates. Once you enter your shipping info, you'll be given a selection of services from UPS, FedEx and USPS.

Exclusions: Certain products are excluded from our free shipping offer due to manufacturer restrictions. Also, oversized items or large amplifiers weighing more than 75 lbs may incur extra shipping charges.

Approval Period, Taxes, Duties: Most instruments ship with a 48-hour approval** period during which time you can comfortably evaluate your purchase and determine if it's right for you. The prices listed on our website do not include shipping charges or any applicable taxes, duties, or custom fees. Instruments shipped within MA are subject to a 6.25% sales tax. All out-of-state shipments are tax-free though we do recommend you look into your individual state's tax codes to determine any tax liabilities.

The Music Emporium has been shipping guitars around the world for 40+ years. Your instrument will be expertly packed and shipped via FedEx, UPS, or US Priority Mail, depending on the destination and level of service. If you have a preferred method not listed here, please let us know and we'll do our best to accommodate.

**There are instances where the approval period does not apply. If you've played the instrument in our store and we then ship it to you, there is no approval period. If the item is a Sale Item (special discounted price, an item listed on our Specials Page), there is no approval period. There are no returns accepted on electronics (amps, pickups, pedals, etc.) unless the product is received in damaged or defective condition.

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