Radial Bassbone V2 Bass Guitar Preamp and DI Box

The Sanctuary Perspective

The Radial Bassbone V2 is the ultimate bass instrument preamp and direct box, engineered to give gigging and touring bassists complete tonal control on stage. Designed to handle two different instruments—such as swapping between a passive vintage Fender Jazz Bass and a modern active 5-string, or an electric bass and a double bass with a piezo pickup—the Bassbone V2 features two independent channels with tailored EQ controls. Equipped with an integrated clean power boost, a footswitchable FX loop with a wet/dry blend control, and Radial’s studio-grade transformer-isolated XLR output, the Bassbone V2 acts as the central command center for any bass setup.

Product Intelligence & Bass Tone Profile

• Best For: Performing Bassists, Multi-Bass Stage Rigs (Electric + Upright/Acoustic), Active/Passive Dual-Bass Swaps, Studio Session Work, and Live Direct Stage Feeds.
• Sound Character: Deep, articulate, and punchy with massive low-end extension, smooth midrange clarity, pristine high-end detail, and dead-quiet noise performance.
• Compared To: Upgrades standard single-channel bass DI pedals by offering dual-channel switching, a dedicated high-impedance PZ-B piezo buffer for upright acoustic basses, and a wet/dry blend FX loop to maintain low-end clarity through drive or modulation pedals.
• Sanctuary Expert Note: "The FX Loop Blend control on the Bassbone V2 is a absolute game-changer for bassists using overdrive or fuzz. Instead of losing your fundamental low end when you engage a distortion pedal, the blend control lets you mix your clean direct bass signal back underneath the effect for crushing power and punch."

Key Features & Stage Engineering Highlights

• Dual Channel Switching Architecture: Toggle instantly between Channel 1 and Channel 2, or run Channel 2 as a secondary gain stage for a single electric bass.
• Tailored Equalization Controls: Channel 1 features preset EQ curves for fast tone shaping, while Channel 2 provides a powerful 3-band semi-parametric EQ with sweepable midranges.
• PZ-B Piezo Booster: Recessed 10M-Ohm ultra-high impedance buffer on Channel 2 optimizes input loading for upright basses equipped with passive piezo transducers, eliminating harshness and low-end thinness.
• Parallel FX Loop with Wet/Dry Blend: Route external effects pedals without tone loss; the wet/dry control lets you preserve solid low-end definition under heavy drive, delay, or chorus.
• Assignable Clean Power Boost: Footswitchable boost with up to +12dB of clean gain for soloing or bringing out delicate fingerstyle passages.
• Transformer Isolated Studio XLR Output: Features Radial's custom audio transformer to deliver dead-quiet, ground-isolated signal directly to front-of-house PA systems or recording consoles.

Technical Specifications

• Audio Circuit Type: Discrete Class-A FET Preamp with Low-Noise Operational Amplifiers
• Number of Channels: 2 (Channel Toggle or Channel Blend Modes)
• Frequency Response: 20Hz – 20kHz (± 0.5dB)
• Dynamic Range: 105dB
• Total Harmonic Distortion (THD): 0.005% @ 1kHz
• Input Impedance (Standard 1/4"): 220kΩ
• Input Impedance (PZ-B Active): 10MΩ Ultra-High Piezo Impedance
• Output Impedance: 600Ω Balanced XLR / 1kΩ Unbalanced 1/4"
• Equalization (CH 2): High (+/-10dB @ 10kHz), Low (+/-12dB @ 75Hz), Mid Parametric Sweep (250Hz – 4kHz)
• Switches: Mute, Channel Select (A/B), Boost/FX Loop Select, PZ-B On/Off, Phase Invert, Ground Lift
• Connections: 2 x 1/4" Instrument Inputs, 1 x 1/4" Send/Return FX Loop, 1 x 1/4" Amp Out, 1 x 1/4" Always-On Tuner Out, 1 x Balanced XLR Output
• Power Requirement: 15VDC 400mA Supply Included
• Chassis: 14-Gauge Heavy Duty Steel