Legendary 1970s SVDS Wireless Magic Re-Engineered for Bass
The Guitar Sanctuary is proud to offer this Preowned SoloDallas The Schaffer Replica Bass-X Pedal in Mint Condition. Based on Ken Schaffer’s legendary 1970s Schaffer-Vega Diversity System (SVDS) wireless unit, the Bass-X captures the exact analog compressor/expander dynamics, optical limiter punch, and interactive preamp harmonic richness that defined classic rock recordings—specially tuned and optimized to handle the extended low frequencies and high-transient attack of electric bass.
Sanctuary Expert Note: "The original Schaffer wireless wasn't just a signal transmitter—it was an accidental secret weapon that added remarkable punch, presence, and dynamic glue to studio bass and guitar tracks. The Bass-X recreates that exact circuit topology without requiring a bulky wireless transmitter, giving bassists a studio-grade preamp and compression boost that locks your tone into the mix."
Tone & Technical Highlights
- Best For: Rock, Funk, Hard Rock, Studio Session Recording, Live Stage Bass Rigs, and Slap/Fingerstyle Precision
- Tone Profile: Warm, punchy, and articulate low-end definition with silky top-end presence, smooth optical compression, and natural harmonic expansion
- Dedicated Bass Voicing: Re-engineered EQ curves and dynamic response tuned specifically to preserve ultra-low sub frequencies without low-end roll-off or loss of clarity
- Optical Limiter & Compander Circuitry: Smooths out harsh attack transients while bringing up subtle ghost notes and string detail for balanced fingerstyle and slap playing
- Interactive Boost & Gain Shaping: Drives your bass amplifier's tube front-end or solid-state preamp into sweet harmonic saturation
- Condition: Preowned in Mint Condition—fully tested, completely functional, and meticulously inspected by our shop staff
Full Specifications Matrix
- Brand: SoloDallas
- Model: The Schaffer Replica Bass-X
- Condition: Preowned (Mint Condition)
- Circuitry: 100% Analog SVDS Compander & Preamp Circuit
- Controls: Input Gain, Output Volume, Limiter/Sensitivity Controls
- Bypass Switching: True Hardwire Bypass
- Enclosure: Heavy-Duty Die-Cast Aluminum Housing
- Power Requirements: Standard 9V DC Center-Negative Power Supply
- Origin: Hand-assembled with high-grade audio components
We are open Tuesday-Saturday from 10am until 6pm CDT.
Any order placed before 3pm CDT Tuesday through Saturday is processed for shipment the same day. Orders placed Sunday-Monday will be processed for shipment the following Tuesday.
For Free Shipping items, Effects pedals and small goods items are generally shipped via USPS Priority Mail, and Guitars and Amplifiers are generally shipped via UPS Ground.
Due to our central location in the middle of the US, most orders will be delivered within 1-3 days delivery time.
Other shipping methods are available (at an additional cost), including next day air.
Please call us directly at (972)540-6420 if you have any questions regarding shipping for your order.
