Description
PRELOVED Vertex Effects Steel String — Crystal-Clear Boost to Smooth Overdrive
The Vertex Steel String Clean Drive is a highly musical tone-shaper designed to capture the feel and response of the iconic Dumble Steel String Singer in a compact pedal. It’s built to cover a wide range—from fat clean boost and compression-style thickening through to crystal-clear overdrive and mid-focused EQ shaping, making it a killer “always-on” foundation pedal.
Vertex even calls out those famous, glassy clean/edge-of-breakup tones associated with records like “Texas Flood,” “Venus Isle,” and “Continuum” when used into a clean amp platform.
Controls (simple, but powerful)
- Volume – output level
- Filter – shifts mid emphasis from low-mids (left of noon) to upper-mids (right of noon)
- Gain – ranges from boost/low saturation (below noon) to overdrive (past ~1 o’clock and beyond)
Key Specs
- Connections: Input, Output, 9VDC
- Power: 2.1mm centre-negative barrel, DC 8.0–9.6V (9.8V max)
- Current draw: <10mA
- Input impedance: 2.2MΩ
- Output impedance: 100kΩ
- Dimensions: 4.6" x 3.2" x 1.8"
Why Buy Preloved at Colemans Music?
- Trusted Melbourne retailer (South Melbourne store + online)
- Preloved gear inspected & tested so you can buy with confidence
- Real advice from musicians on gain staging, stacking, and amp pairing
- Australia-wide delivery with careful packing
- Support after purchase if you need help dialling it in


