Nordost Heimdall 3 Speaker Cables

18 silver-plated conductors, Micro Mono-Filament construction, and ultrasonically welded connections

The Heimdall 3 is the entry point to Nordost’s Norse 3 speaker cable range, positioned below Frey 3 and Tyr 3. Its flat geometry combines 18 silver-plated, solid-core oxygen-free copper conductors with FEP insulation and Nordost’s proprietary Micro Mono-Filament construction.

A single FEP filament separates each conductor from its surrounding insulation, creating an air dielectric that minimizes physical contact and provides mechanical damping. Mechanically tuned conductor lengths address resonance behavior, while the flat conductor arrangement maintains consistent spacing and controls the cable’s electrical characteristics.

Ultrasonically Welded Connections

The Heimdall 3’s gold-plated beryllium copper connectors are designed specifically for ultrasonic welding. This process bonds the conductors to their terminations without solder, creating a mechanically stable connection while minimizing added material in the signal path. Electrostatic-dissipative terminal housings help dissipate static charges that accumulate on the cable. Termination options include gold-plated spades or Z-plug bananas.

Specifications

Insulation: Fluorinated ethylene propylene (FEP)

Construction: Micro Mono-Filament design, mechanically tuned lengths, and ultrasonic welding

Conductors: 18 × 22 AWG

Conductor Material: Silver-plated 99.99999% solid-core oxygen-free copper

Capacitance: 17 pF/ft.

Inductance: 0.73 µH/ft.

Velocity of Propagation: 95% of the speed of light

Terminations: Gold-plated spade or Z-plug banana with dedicated housing