Description
Graph Tech Ghost Series Bass Acousti-Phonic Preamp Board (PD-0340-00)
Expand the sonic boundary of your electric bass with the Graph Tech Ghost Bass Acousti-Phonic Preamp Board. Precision-engineered by Graph Tech Guitar Labs, this internal active preamp board captures the deep, natural, organic wood acoustics of your instrument. It delivers an incredibly authentic, studio-quality acoustic bass tone directly from your solid-body electric bass—completely eliminating feedback, bleed, or microphone placement issues.
Equalized specifically to accommodate the low-end frequencies of bass guitars, the PD-0340-00 serves as the primary replacement circuit board or foundation for custom hybrid setups. It gives you the power to switch seamlessly between massive electric bass punch, authentic acoustic double bass warmth, or a rich, layered blend of both signals simultaneously.
Key Features
Acoustic Bass Voicing & EQ: Unlike general-purpose preamps, this board is fine-tuned explicitly for the acoustic dynamics and fundamental frequencies of the bass guitar. It features natural built-in compression that totally eliminates harsh piezo "quack," ensuring a smooth, warm, and highly articulate response across all strings.
Intelligent Mono/Stereo Auto-Sensing: The circuit board automatically detects and selects your output configuration based on the cable inserted. Plug in a standard mono cable to sum your magnetic and piezo signals into one path, or plug in a stereo TRS cable to route your traditional electric pickups to a bass rig while sending the pristine acoustic signal straight to the front-of-house PA or mixing console.
Onboard Volume Mixing Control: Keep complete control over your signature sound. The preamp allows you to adjust the mix ratio between your passive magnetic pickups and acoustic piezo saddles right from the instrument, ensuring a smooth transition without dramatic volume drops.
Auxiliary Power Routing Capability: Designed with practical workflows in mind, the board provides auxiliary 9V to 18V power routing for instruments that already utilize active magnetic pickups. This intelligent architecture powers both systems simultaneously, completely eliminating the need to install or replace two separate sets of batteries.
Expandable MIDI Architecture: Built to grow alongside your musical style. This low-latency board can be easily expanded by plugging in a Graph Tech Hexpander MIDI interface board at any time, unlocking lightning-fast note and chord tracking for pitch-to-MIDI converters, synthesizers, and virtual guitar processors.
Technical Specifications
Brand: Graph Tech Guitar Labs
Product Line: Ghost Modular Pickup System Components
Manufacturer Part Number / SKU: PD-0340-00 (also cross-referenced as 0340-00)
UPC / GTIN: 702725243624
Component Type: Internal Preamp Circuit Board Only
Frequency Optimization: Voice-equalized for Bass Guitar
Power Requirement: 9V Battery standard (Supports auxiliary configurations up to 18V)
Form Factor Weight: ~50.00 grams
System Compatibility & Hardware Requirements
Direct Kit Replacement: This circuit board is the exact factory replacement module used to power the Ghost Bass Acousti-Phonic Basic Kit (PE-0340-00), Advanced Bass Kit (PK-0340-00), and the Complete Acousti-Phonic & Hexpander Bass Kit (PK-0780-00).
Required Accessories: To function, this board must be paired with Graph Tech Ghost Bass Saddle Pickups or ghost-loaded Bass Bridge Assemblies (sold separately) along with compatible wiring harnesses.
Installation Warning: Because this modification involves custom internal wiring, cavity routing adjustments to guide piezo wires, and precise electronics placement, professional installation by an experienced luthier or guitar technician is highly recommended.