Radial Engineering Voco-Loco Mk2

The Radial Voco Loco Mk2 is an effects controller that allows guitar pedals to be used with any microphone signal: vocals, harmonica, saxophone, and other acoustic instruments. The microphone connects directly to the unit, which integrates a preamplifier, a two-band EQ, and an effects loop with independent Send/Receive. It also features a Tone control for tonal shaping and a Mix control that balances the original signal with the processed one. The unit also offers Ground Lift, phase reversal, 48V phantom power for condenser microphones or active DIs, and supports 9 to 18V power supplies, for maximum versatility in the studio, live, or in mobile setups.
Key Features
Studio-quality microphone preamplifier
Effects loop for guitar pedals with send/receive
Independent Send and Receive controls
Two-band EQ (Low/High)
Tone control for tonal adjustment
Mix control to balance Dry/Wet signal
Footswitchable Mute and All Wet functions
Integrated 48V phantom power
Mic input with XLR
Line output with XLR for direct connection to the mixer
Compatible with 9–18V power supplies
The Radial Voco Loco Mk2 is an effects controller designed to integrate guitar pedals into any microphone chain, allowing creative effects to be applied to vocals, harmonica, saxophone, trumpet, and many other acoustic sources. The microphone connects directly to the unit via XLR and is managed by a high-quality preamplifier with a two-band EQ, Ground Lift functions, and phase control, useful for eliminating hum, ground loops, and other typical disturbances of complex setups.
The signal is then sent to the effects loop via a classic ¼" Jack send/return, with independent Send and Receive adjustments that optimize the input level to the pedals and prevent unwanted distortion. The Tone, Dry/Wet, and Mix controls offer extensive tonal management: from simply softening brighter frequencies to precisely balancing the original and processed sound, ensuring a consistently musical and controlled result.
To complete the features, the Voco Loco Mk2 provides 48V phantom power for condenser microphones or active DIs and is compatible with 9 to 18V power supplies, in addition to the included one. This flexibility makes it an extremely versatile tool, perfect for use in the studio, live, or in mobile setups where practicality, sound quality, and creativity need to be combined.
Voco Loco Applications
Vocals
Add reverbs, delays, choruses, or distortions to vocals while maintaining full creative control.
Harmonica
Integrate overdrive, chorus, and reverb without dedicated amplifiers: perfect for blues and live performances.
Wind Instruments
Enrich sax, trumpet, or other wind instruments with echo, wah, modulations, and other effects for unique and memorable solos.
Technical Specifications Radial Voco Loco Mk2
Audio
•    Audio Circuit Type: Integrated Op Amp with Class-A FET input stage
•    Frequency Response: 20 Hz ~ 20 kHz
•    Dynamic Range: 100 dB
•    Gain: 52 dB
•    Clipping Level: +15 dBu
•    Total Harmonic Distortion (THD): <0.005%
•    Intermodulation Distortion (IMD): <0.005%
•    Phase Deviation: 8° @ 50 Hz
•    Input Impedance: 10 kΩ, 100 kΩ (FX Loop)
•    Output Impedance: 300 Ω, 3000 Ω (FX Loop)
•    Common-Mode Rejection Ratio (CMRR): –73 dB @ 55 Hz
•    Equivalent Input Noise (EIN): –120 dBu
•    Floor Noise: –85 dBu
•    Maximum Input: +10 dB
Functions
•    Input Pad
•    180° Polarity Inversion
•    Ground Lift
•    Effects Loop
Connectors
•    Input: Female XLR
•    Output: Male XLR
General
•    Construction: 14-gauge steel chassis and outer shell
•    Power: 9 to 18V 400mA adapter, center positive
•    Operating Conditions: For dry environments only, between 5°C and 40°C