Z-Sleeves are not ferrite or resonance-control based. Rather, they are designed to approximate a Zero Gauss Chamber. The tube creates an internal magnetic null area that completely obliterates EMI contamination.  This is accomplished through the specific combination of shielding materials, dimensional ratios and increased abilities of those shields to hold and store EMI.

A Z-SLEEVE is a ZERO GAUSS Tube that slips over a cable. It does not connect to the cable in any way, and it does its effect passively, not in circuit.

The Z-SLEEVE is 8 inches long, with an internal diameter of 1 1/8th inches.

Most speaker cables slip through the sleeve without any problem. If your speaker cable leads are long enough, then putting Z-SLEEVES over the leads themselves is most effective, if not put the sleeve over the body of the speaker cable (placing the sleeve closest to the speaker).

On an interconnect or coax digital cable, the sleeve slips over the top of the cable and is placed closest to the receiving component.

The Z-SLEEVE reduces distortion, and focuses the signal just before it goes into the speaker or receiving component. It does this through passive organisation of the concentric magnetic field surrounding, and propagated by the speaker cable’s signal.

The Z-SLEEVE will reduce high frequency noise, increase mid and bass definition, improve coherence, improve spatiality, and improve dynamics.

Elite Z-Sleeve

The largest, heaviest most effective Z-sleeve ever. Slide over your interconnects for additional shielding and quieting, stabilization of the audio cable's naturally occurring electro-magnetic field. You will hear a huge amount of low-level information emerge, at the same time, the organic flow of music will improve and any grain or edginess will disappear. Works best on interconnects and power cords with molded ends.

Approximate Dimensions:-

Length  8 1/2”
Inside Diameter  1 1/8”
Outside Diameter  3 1/2”