Preventing vibrations from entering audio cables and disturbing the signal has become a popular tweak. Understandably, some cables are more microphonic than others, some surfaces will vibrate more than others, and some cable configurations and environments will be more prone than others. Still, all systems can benefit from CVP.

In addition, lifting cables away from the floor causes an electrostatic field to develop. Though the static charge is easy to measure electronically, it is difficult to measure how perceptual it is, and every situation will vary. We do know that neither is good for the integrity of the signal. CVP address both issues and can be applied to and benefit all cables, including AC cables. The CVP recommended hierarchy is; interconnects, speaker cables, AC.

What do CVPs do?

Maintain Signal Integrity

Prevent floor induced vibrations and electromagnetic field potentials from disturbing signal integrity.

Mechanical Vibration

Decoupler

The CVP core is a mechanical vibration decoupler. Typical cable lifters elevate, yet still allow vibrations to be transmitted to the cable through the lifter itself. With CVP, the cable and the floor are mechanically decoupled.

Electromagnetic Coupling

The CVP jacket is an electrical field coupler. This housing prevents the electrostatic field from being generated when cables are elevated off the floor. With CVP, the cable and the floor are electrically coupled.

The CVP design addresses both the physical vibration issue (with layers of fiberglass that transform mechanical energy into heat energy as the fibers move against each other, just as EVPs do), and the electrical distortion issue (by incorporating an electrical coupling material as the fiberglass jacket).

The CVP is both a vibration decoupler and an electrical coupler. As can be observed in measurements, the static electrical charge is zero, as well the capacitance when the cable is in contact with the CVP, and the CVP is in contact with the floor. Upon raising the cable off of the CVP, the electrostatic units (Kv) and capacitance units (F) increases with distance (or at least the 4” used when measuring). By placing the cable on the CVP you have formed a mechanical vibration isolator and an electromagnetic coupler.

Another design goal of the CVP was to make it work without the cable falling off the device and/or the device falling over, unlike most of the competition, which is situated precariously holding the cables, and also creates a tripping hazard. This is accomplished by incorporating a Velcro strap to go loosely around the cable and the CVP. Typically (depending on the stiffness and weight of the cable), one CVP should be applied every 2-3 feet to keep the cable from contact with the vibrating floor or surface.

We also wanted to make it affordable like the EVPs. As with all our products, there are measurements backing the claims, along with a 30 day money back guarantee if not satisfied.


Review

AV RoomService CVP-ECs:

Cable Vibration Protection for a Lower Noise Floor

(click to read review)

 

11-12-2019 | By Tom Gibbs | Issue 106

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