VCX Automatic Volume Limiter

VCX Intelligent Automatic Volume Limiter. Alternative to the industry standard AVC2, featuring the same high quality but at a lower price. The VCX provides full control of music levels without compromising the audio quality. Installation is very straightforward with just a couple of cables to plug in and is usually a DIY task.

PLEASE NOTE: This product is usually only suitable when the sound system is permanently installed in the venue. For venues where DJs or bands use their own equipment the Lime NLX (v2.2) Noise Limiter (click here for details) is required.

** In Stock **
Delivery usually 1-2 working days.


The Lime Technologies VCX automatically adjusts the volume once your preset threshold has been reached to keep the audio level within required limits. When attenuating the audio signal the distortion from the VCX is less than 0.01% so the quality of the sound is not compromised.

With the optional control microphone connected, the volume level is limited based on the actual sound pressure level so any changes to equipment after the VCX are compensated for.

LEDs indicate the status and the level of attenuation being applied. The factory setting will not instantly react to individual peaks or dips but responds to average programme level giving smooth operation that is almost imperceptible as the level is automatically adjusted.

A security panel is available for the back to protect against unauthorised adjustment or removal of connectors and a mute facility allows connection to a fire alarm or door switches to instantly reduce the sound level by 20dB.

The advantage of the VCX over compressor / limiters is that there is no reduction in the dynamic range of the system under normal operating conditions. Therefore the music remains punchy without the restricted sound of compressor/limiters.

Simple to use and providing effective control over the audio signal without compromising music quality, the VCX is probably the best value device for controlling audio volume levels available today.

Individual frequency / octave bands can be taken into account when controlling sound levels if used with the product below.
Click here for details

Enables compliance with environmental health department specifications which require 1/3 octave band precision limiting.

Lime Technologies VCX Technical Specification
Frequency response: 20Hz – 20Khz +/- 0.5dB
Distortion (THD + noise) 1Khz @ 0dBu attenuation: <0.01%
Distortion (THD + noise) 1Khz @ 12dBu attenuation: <0.015%
Noise measured 20Hz-20kHz: < -90dBu
Stereo input: Electronically balanced on XLR connectors
Input impedance Balanced: 20K
Input impedance Unbalanced: 10K
Maximum input level: +22dBu
Clip indicator: +20dBu
Microphone input: Electronically balanced on XLR connector
Phantom power: 18V
Gain adjustment range: 45dB
Stereo output: Electronically balanced on XLR connectors
Source impedance: 100 Ohms
Minimum load impedance: 600 Ohms
Operating threshold range: High range adjustable +5dBu to -2dBu
Operating threshold range: Low range adjustable -8dBu to -20dBu
Control chain: Linear response
Mute facility: 20dB reduction via normally open contacts
One Third (1/3) octave band capability option available
Power: IEC mains connector - Switchable 230 V or 115 V
Fuse: 230V (110V) 250mA (500mA)
Dimensions: 19” rack mounting, 1RU height and 125mm (4.9 inches) deep
Weight: 3kg
CE Conformity
3 Year Warranty

Note: A sound level meter will be required if you wish to set the maximum volume to a specific sound pressure (dB) level - Click here for details.

Click here to download VCX noise limiter instruction manual.

Lower Cost Alternative to Drawmer SP2120 and Formula Sound AVC2 with Additional Features. Far superior to compressor / limiters which compromise sound quality and do not limit noise levels correctly.