Radial Voco-Loco

Effects Switcher for Voice or Instrument/ Mic Preamp and Effect Loop


About this item



The Radial Voco-Loco is a foot-controlled microphone preamp and effects loop switcher that enables a vocalist or acoustic instrumentalist to incorporate guitar effects pedals into their signal path.

  • Add guitar effects pedals to vocal or instrument mics
  • Create exciting and unique effects as you perform
  • Turn on multiple effects with one footswitch
  • Works with dynamic and condenser microphones

Connect any mic to your guitar pedals

The Voco-Loco combines a microphone preamp with a guitar pedal effects loop, allowing a lead vocalist, sax or trumpet player to add guitar pedals to their audio signal path just like an electric guitarist adds effects for soloing. Simply plug your mic into the Voco-Loco via the XLR input, connect your effects pedals using standard ¼” guitar cables, and then send the output from the Voco-Loco to the input on your mixer. Now with the touch of a footswitch you can add your favorite delay, reverb, distortion or wah-wah to any mic’d up instrument or vocal – the options are only limited by your imagination.

The Radial Voco-Loco is, in fact, a studio-quality preamp that has been carefully disguised as a foot pedal! One look at the linear frequency response, exceptional signal handling and low noise and you will recognize the studio-quality that is built-in. This ensures that the dry microphone signal will be delivered to the PA system without distortion or artifact and faithfully reproduce the instrument or vocal without compromise. A carefully crafted 2-band EQ makes adjusting the tone effortlessly. Turning on the effects loop adds transformer isolation to reduce hum and buzz caused by ground loops, a common problem that plagues many pedal setups. Once the loop is brought back, a tone control lets you tame the effects signal and a dry-wet mix control lets you balance the signal to suit.

*48 Volt Phantom Power

Although 48 volts is often specified, truth is, it is not always present or needed. In fact, most condenser microphones are designed to work from 12 volts to 52 volts, many of which will also work on a simple 1.5-volt battery. The reason high voltage is used to charge condenser mics in PA systems is that it enables the condenser microphone to be positioned 200 meters (600 feet) away from the mixing console. Considering the Voco-Loco will likely be used near the musician with a 3 or 6 meter (10′ or 20′) mic cable, the high voltage is simply not needed. The Voco-Loco actually generates 40 volts phantom, not 48 volts. We chose to do this in order to reduce the power stage which could add noise. We have tested a wide range of popular stage and studio microphones and in all cases, the results were excellent.

Audio circuit type:Integrated Op-Amp with Class A FET input circuit
Frequency response:20Hz ~ 20kHz
Dynamic range:100dB
Clip Level:+15dBu
Total harmonic distortion:<0.005%
Intermodulation Distortion:<0.005%
Phase Deviation:8° @50Hz
Input Impedance:10K-Ohms, 100K (FX Loop)
Output Impedance:300 Ohms, 3000 Ohms (FX Loop)
Common Mode Rejection Ratio:-73dB @55Hz
Equivalent Input Noise:-120dBu
Maximum Input:+10dB
Input pad, 180° polarity reverse, Ground lift, Effects Loop
Input Connectors:XLR-F
Output Connectors:XLR-M
Construction:14 gauge steel chassis and outer shell
Power:100mA, center positive
Conditions:For use in dry locations only between 5°C and 40°C
Warranty:Radial 3-year, transferable


There are no reviews yet.

Be the first to review “Radial Voco-Loco”

Your email address will not be published. Required fields are marked *

This product was featured in our Installation projects


The Huntington Theatre Company is a famous non-profit performing arts organization located in Boston, Massachusetts. It was established in 1982 and has since developed into

Our mission at Parsons Audio is to provide solutions that help engineers, educators, musicians, studio, and venue owners realize their goals. When the owners of

2022 has been a busy year for us here at Parson’s Audio. We’ve been busy doing sound system installations all over New England. The Groton

Different Solutions For You


Professional Installation Services

Flawless audio systems for studios and venues


Audio Solutions for Education

Elevate learning experiences with tailored audio solutions


Outstanding Video Solutions

Visual experiences with state-of-the-art video technology