Here's the Van Damme page for their hifi speaker cable;
http://www.van-damme.com/25.html
This range comprises a shotgun style twin interconnect cable and 5 conductor sizes of shotgun speaker cable. These cables can be found in many professional environments; in particular the 4mm and 6mm speaker cables are used for critical near field monitoring in many world class recording and mastering studios as well as being the speaker cable of choice for more than one world class hi-fi equipment manufacturer. New 0.75mm and 1.5mm cables cater for domestic hi-fi and surround applications.
Applications
High end domestic hi-fi cables
Professional critical monitoring
Application notes
Shotgun construction for easy conductor separation & identification
Speaker cables have ultra-fine 0.10mm conductors with 7 way plait construction to minimise the skin effect.
....That's it. No ridiculous claims, lots of specs listed.
Here's what they say about their 'Session Grade instrument cables;
The Silver Series range comprises 3 unbalanced instrument cables engineered to have three specific capacitances. They are primarily for use for guitar and bass guitar to amplifier applications. The construction of these cables utilises a no compromise approach to materials and electrical characteristics; consequently flexibility is not a priority and these cables are aimed at recording rather than live performance.
The range comprises the following cables:
Lo-Cap 55: 55 p/F per metre. Low capacitance figure gives low high frequency roll off
Flat-Cap 90: 90 p/F per metre. Mid range capacitance figure gives average high frequency roll off
Hi-Cap 125: 125 p/F per metre. Higher capacitance figure gives more high frequency roll off
Honest imho.