A weak link in just about any component audio system are the links themselves! Some audiophiles try to overcome this weakness by "hotwiring" their interconnects directly to component circuit boards – and still, high frequency micro-vibrations remain a problem.

Now, there is a solution. HAL-O JR. Damping Instruments fit snuggly over most interconnect plugs to neutralize micro-vibrations. The JR. is a miniature version of the highly acclaimed HAL-O Damping Instrument, and has been proven to effectively reduce microphonic distortion in audio components.

Without the HAL-O JR. Damping Instrument, interconnects act as conveyors, transmitting vibrations from one component to another. Like a child's "telephone" made of tin cans interconnected by a wire or string, vibrations at one end are readily transmitted to the other, and vice versa. In most audio systems, interconnects also encounter airborne vibrations which are passed on to the components to create distortions in capacitors, tubes, digital processors and other sensitive electronics. HAL-O JR. and HAL-O Damping Instruments are also effective for damping capacitors and other sensitive electronic parts directly.

Interconnect vibration transfer

"Recommended."Boris S. Parta, AudioTweaks.com


Frequently Asked Questions

HAL-O Jr. Damping Instrument


Fits most RCA plugs, 1/4" headphone plugs, coaxial S/PDIF, I2S, DIN, BNC, USB, and fiber optic interconnect plugs, electronic parts, tonearms, and cables approximately 1/2" (11-15mm) in diameter.

Weight - 2.12 grams.

Titanium HAL-O Jr:
$14.49 ea.
4 or more: $14.11 ea.

HAL-O Mini Jr. Damping Instrument

Titanium Mini Jr.

Little sibling to the HAL-O JR., this damping instrument is just the right size for banana plugs, Mini DIN plugs, spade lugs, cables, capacitors, Nuvistors, subminiature vacuum tubes, tonearms, and other devices approximately 1/4" to 7/16" (6.3mm - 11mm).

Weight – 2.06 grams.

Micro Mini: same as Mini Jr. above, with three oversize damping pads for wires, tonearms, plugs, capacitors, and other devices approximately 3/16" to 1/4" diameter (5mm to 6.5mm)

Weight: 3.46 grams.

titanium Micro-Mini:
$14.49 ea.

90-day no-risk trial. If not satisfied, simply return your Damping Instruments within 90 days for a complete refund.

Lifetime warranty. If anything ever goes wrong, simply return any Damping Instrument to Herbie's Audio Lab and it will be repaired or replaced and returned to you at no cost.

BANG for the buck...With scant marketing, Herbie's Audio Lab offers low prices, high value!

All parts and materials made in USA

Copyright © , Herbie's Audio Lab

Name: Vance
Message: I have a humming sound coming from my speakers when the receiver is set to phono. If I hold the tone arm with two fingers the humming goes away. Would a damper help eliminate the humming?

Webmaster's reply: Most likely, yes. Dampers do about the same thing as touching the tonearm with your fingers.

Name: Robert
Message: Do you use theInterconnect Dampers on both ends of an interconnect?


Webmaster's reply: Dampers can be used on one end (input end by default, though can be used on either end) or both ends.

Name: Steve
Message: Why not offer cable towers with built-in vibration control?