Zerotronics CoolSprings MINI-LE Stereo Reverb

Zerotronics CoolSprings MINI-LE Stereo Reverb

Little do we know about the makers of this reverb which is Zerotronics. The company has introduced its new Mini LE stereo reverb for the musicians to try their hands on this reverb. The unique thing about this is that it is a limited edition stereo reverb. This particular reverb is compact in size and can have a dual spring reverb mechanism that was previously designed for XLR stereo inputs and outputs.

Natural reverb is a product of acoustics that has been an important component of music for a very long time. Take the example of concert halls; they are specially designed to control the reverberant signals in the hall. This is done to redirect the sound waves directly towards the audience to provide a better experience with the audio and the music is made more enjoyable. Ultimately, the sound of the space makes the music more real and organic.

Real music has been loved for centuries by the audience; this is the reason that this technique of reverb is used in recorded music as well. The natural reverb in the music is recorded by simply recording the music in a space that has reverberations that are easy to record in the audio.

Now back in those days, the reverb was segregated into dry and wet balance which was determined by the distance between the microphone and the source of the sound. When played close to the microphone, the dry sound was accumulated because the surrounding noise of the room acoustics would get neglected. And if played from a certain distance from the microphone, the direct sound would blend into the surround sound causing the formation of a wet sound.

During the 1920s and 1930s, the jukeboxes did not respond well to the reverb because of the quality of the speakers. This led to an era of recording music that had dry vocals because of lacking the technology to add the surround sounds into the recordings. As the technology kept on improving the reverb rooms were created for adding the reverbs to the recordings, especially to the genres like Jazz and Classical music.

The biggest issue in recording with the natural reverb was there was hardly any differentiation between the dry and the wet balance and once recorded there was no technology to re-modulate the balance post-recording. But as time passed, the solution was made to this problem in the form of echo rooms and the technique was famously known as chamber reverb. In this, the room was mostly made of concrete and used to be an empty one to created more isolated reverberant space.

The loudspeaker in the room would receive the audio signal from the mixer to play the audio in the room. This instigated the room acoustics to create a specific reverb. The microphone would then record the reverberant signal and send it back to the mixer. But somehow these reverb signals could not be adjusted as the signal would directly come from the room. As a result, mechanical reverb systems were created to have more control over the reverb signals and consequently reduce the cost of the production.

One of these mechanical reverb systems was a spring reverb. In this, the sound of the reverb is caused by a number of reflections that occur as sound waves bounced back from the surfaces. The blur of these waves used to blend with each other to cause a smooth reverb. This ultimately resulted in the creation of artificial reverbs.
Digital Reverb Systems
With the advent of digital audio, reverb technology also continued to develop consequently. Now the algorithms were used to create the artificial reverb effects. By changing the frequency levels and the timing of the algorithm, the digital reverbs used to effectively reproduce the tail of the natural reverbs in the audio recordings.

Here comes the Zerotronics’ creation of the cool spring stereo reverb system. This unit is totally passive and is connected to a mic preamp for output gain. This particular device is the limited edition that has gained much-desired popularity in the music world. Some of the unique features of this reverb system are as below.


• It is equipped with rare old stock springs that were originally manufactured for Baldwin Electronic Organ in 1960.
• These springs have a unique design and they produce completely different sounds compared to other accutronics.
• The reverb can be used either in monotype or stereotype as per the liking of the music creator.
• It has a very compact size and is pretty much lightweight too.
• The Zerotronics cool spring Mini LE reverb features two Baldwin springs producing a dual mechanism of the unit.
• The reverb system has a sensitivity of up to -50 dBV under the isolated grounds.
• It produces a smooth and high-quality reverb sound that accelerates the audio output of the recording.
• It can be easily carried anywhere and excels the mobility criteria by not being too heavy and bulky.
Over the time period, the music production and its elements have undergone a vast amount of change and the sound engineers have drastically adopted the new technology in inventing something new and handy for the musicians.

Artificial reverb is one such invention that has helped a lot of music creators in more than one way. Every single development in artificial reverberations introduced new possibilities and sonic inventions for the music producers, ultimately creating the way for the music that has been loved by people in decades.