Walker Audio High Definition Links MARK III
The new High Definition Mark IIIs are a major improvement over the Mark IIs and we believe even better than the Ultimate HDLs.
(Ultimate HDLs have been discontinued and replaced by new Reference HDLs.)
The Mark III High Definition Links prevent very high frequency electronic noises (which are emitted from all electronics) and RFI from being transmitted to your speakers. They eliminate the unwanted noise from the signal path, while allowing the pure music signal to pass through unaffected.
The music will become more natural sounding. The electronic glare will disappear. The sound stage will open up to become better focused, more transparent. Harmonics will be cleaner, clearer and the dynamics will be faster and sharper, without harshness.
All parts in the High Definition Links are designed and built to proprietary specifications for Walker Audio. The wiring and the spade connectors are ultra pure silver. The components are encased in a wood enclosure to protect the components and minimize the dielectric effect and are shielded with special EMI/RFI conductive copper tape.
APPLICATION TIP:
HDLs are great to use on high-end surround sound video systems. We recommend using the Reference HDL on the main speakers and the new HDL Mark IIIs on the surround speakers. The results are absolutely remarkable. You will feel as if you are part of the action!
Installation
Installation is very simple. High Definition Links install in parallel with your speaker cables at your speakers and are placed between the speaker cables and the binding post nut. (Not between the speaker cable and the speaker.) . One way to simplify this, and make the HDLs easy to insert and remove them from your system, is to purchase Monster Cable Banana Plug adaptors, and attach the HDLs to them. Once attached you can insert and remove the Links easily.

IMPORTANT: It is important to note the polarity: red to red, black to black. Do not let the copper body come in contact with the speaker cables or the binding post. If necessary, use paper tape – not electrical tape- to isolate the HDL body from the bare binding post. It will sound best if you position the HDL so that the leads extend up or down from the binding posts and the body is as far away from the binding posts as possible.
Biwireable Speakers – Using one set of speaker cables with jumpers: You will need one pair of HDLs and one pair of jumpers. The jumper wire is critical. We recommend our Walker Audio Silver Jumpers. They are cryogenically-treated ultra-pure silver solid-core jumpers. Your ears will love you.
Biwired and Tri-wired Speakers: One HDL required for each speaker cable.
Speakers With External Crossovers:
Subwoofers: Benefit dramatically.
That’s it. Allow twenty hours play time for the High Definition Links to break in properly.