
Anthony Easton
The SolidGoldFX Spanish Castle Dual Fuzz is a versatile pedal designed to provide a wide range of fuzz tones. It pays tribute to the year 1969, a significant period in the gear world. The pedal features two separate and footswitchable If 6 Was 9 circuits, each representing different eras of the Fuzz Face.
The right side of the Spanish Castle represents the warmer pre-’69 circuit and is equipped with low-gain silicon transistors that emulate the rich character of germanium with more stable and consistent operation. Carbon-composition resistors further round everything out for a sound that is reminiscent of vintage fuzz tones. This circuit is equipped with a bias circuit to dial in the desired flavor and cleans up effectively.
On the left side, the post-’69 If 6 Was 9 circuit offers higher-gain silicon transistors for a more aggressive, buzzsaw-like grind. It features metal film resistors for tighter tolerances and an extended bias range for dialing in ripping gated fuzz textures as well as full-bodied snarl.
Each side offers two toggle switches—Color and Input. The Color switch adjusts the EQ of its respective side, while the Input switch changes gain and bass values to adapt better to other pedals.
Additionally, each side contains an internal switch that changes between Bold and Comp modes, offering different output levels and tonal characteristics.
The pedal features the following specifications:
- True Bypass: Yes
- Power: 9-18V DC
- Current Draw: 10mA
- Dimensions: 4.67" x 3.68" x 1.18" (119mm x 94mm x 30mm)
The Spanish Castle Dual Fuzz is designed to cater to both the fuzz-crazy and fuzz-curious musicians, offering a wide array of tonal possibilities and control options for creating unique fuzz textures.
Watch the latest video demos and reviews for the Spanish Castle from YouTube. Stompbx updates this every six months to reflect the most popular reviewers and guitar pedal demos for each pedal.

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Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton