Nordost’s new resonance control device
BC – bronze post and base elements combined with a ceramic coupling ball.

The Sort Kone is a directly coupled and mechanically tuned resonance control device, using a sophisticated new approach to the problem of supporting sensitive electronics.

Whereas most equipment supports are referred to as Isolation Devices, this actually completely misunderstands the nature of the problem. The most harmful mechanical energy doesn’t enter the equipment from outside, it’s generated internally by the audio circuits and their power supplies. Transformers, power supply capacitors, even the active devices themselves, all vibrate as they operate – and those vibrations occur right where the fragile signal is, creating timing errors that smear and distort the music. The Sort Kone is designed specifically to deal with this threat to audio fidelity.

Nordost’s new resonance control device.
AC – aluminum post and base in combination with an upgraded Si3N4 ceramic ball.

The Sort Kone is a directly coupled and mechanically tuned resonance control device, using a sophisticated new approach to the problem of supporting sensitive electronics.

Whereas most equipment supports are referred to as Isolation Devices, this actually completely misunderstands the nature of the problem. The most harmful mechanical energy doesn’t enter the equipment from outside, it’s generated internally by the audio circuits and their power supplies. Transformers, power supply capacitors, even the active devices themselves, all vibrate as they operate – and those vibrations occur right where the fragile signal is, creating timing errors that smear and distort the music. The Sort Kone is designed specifically to deal with this threat to audio fidelity.

Nordost System Tuning and Setup Disc

Finally, all those invaluable test and set-up tracks on a single disc!

Nordost’s new System Tuning and Set-Up disc contains everything that you to get a system sounding its best – and keep it that way. An extensive range of proven diagnostic tracks – plus a few innovative and extremely useful ones – helps with speaker placement (and sub-woofer integration), performance checks and assessment, problem location and system conditioning.

Developed as a one-stop audio toolbox for our own use in the demanding and critical environment of shows and dealer events, you’ll find it invaluable in your own home. The disc comes with its own instruction book as well as a supporting PDF download that is available from the Nordost website, which clearly lays out the purpose and benefits of each track. A little practice and pretty soon you’ll wonder how you got along without it.

As well as basic channel and phase checks (boring we know, but oh so useful) there are discrete left and right channel pink and white noise tracks, as well as alternating ones, which are ideal for checking that speakers are working properly and voicing them in-room. The computer generated LEDR tests provide a repeatable method for mapping and adjusting sound-staging and toe-in while uncompressed drum tracks test dynamic range and rhythmic integration. As well as conventional sweeps, there is a timed low-frequency sweep that will allow you to identify principal room modes. Used in conjunction with the discrete low-frequency tones this is a huge help in diagnosing problem environments, placing speakers and integrating and optimizing sub-woofers. Throw in system burn-in and degauss tracks and you can see why we consider this an invaluable part of our audio armoury. In fact, the only thing missing is the plinky-plonky audiophile music tracks that clutter up most test CDs!

The Affordable Alternative

Double Truncated Vinyl Cone


New 7/16" Chrome Stationary Ball (it doesn't roll)
Check with your dealer to see if they have these.
User Replaceable by Any 7/16" Ball.

1.1" tall, 1 5/8" Diameter

25 lbs Maximum Weight Each


Designed To Work With VibraPods
Or by Themselves.

When combining VIBRAPOD Isolators and Cones use the weight that an Isolator can support for the combination.

CD, DVD, DSS Receivers, DAC's, Pre amps, Amplifiers, Integrated's, Turntables, Speakers

RCA C
Cardas RCA Caps (RCA C) fit over unused female RCA connectors in your system to eliminate EMI and RF noise absorption. Unlike traditional shorting plugs, these caps do not short the inputs (many pre amps do not like having their inputs shorted).

Patented WBTGäó mechanism provides both adjustment and locking functions. Barrel finished in polished ruthenium. Small, compact design.