Nordost · Norse 3

Nordost Tyr 3 Power Cord

From $4,500

Nordost · Norse 3

Seven silver-plated solid-core conductors in Dual Mono-Filament with a 90% AC-optimized shield: the top of Nordost's Norse 3 power cords.

Price is for one cord at the shortest length shown. Choose length, wall plug and equipment end in the selector.

7 × 16 AWG
silver-plated solid-core OFC conductors
90%
overall shield coverage
Dual
Mono-Filament construction
15 A / 20 A
IEC equipment end
Options and pricing

Authorized Nordost dealer · Delivery and installation by Pearl Audio · Trade-ins welcome

The story

The Tyr 3 Power Cord uses seven solid-core 16 AWG conductors of silver-plated 99.99999% oxygen-free copper, each held in Dual Mono-Filament construction inside extruded FEP. Around them is an AC-optimized shield with 90% coverage, which Nordost describes as an important layer of isolation between the conductors and their electromagnetic environment. Solid cores avoid the strand interaction and hot spots of ordinary stranded cord.

Tyr 3 is the only Norse 3 power cord built with Dual Mono-Filament, the construction Nordost uses in Valhalla 2 and Odin 2, and its seven conductors match the Valhalla 2 count. It belongs on power amplifiers and the components that feed them. A 15 A IEC C15 or 20 A IEC C19 equipment end is available, and a 30 A locking connector for certain Dan D'Agostino amplifiers can be ordered.

Choose a straight or 90° US wall plug and the equipment end in the selector; EU, UK and AUS plugs are available at the same price to order, and the 90°, low-profile and 20 A options carry a small surcharge. Standard lengths run from 1 m to 7 m, with longer cords to order.

Key technologies

  • Dual Mono-Filament. FEP filament wound around each conductor creates a virtual air dielectric inside the extruded FEP tube.
  • Silver-plated solid core. 7 × 16 AWG conductors of 99.99999% OFC.
  • AC-optimized shielding. 90% overall coverage isolates the conductors from their electromagnetic environment.
  • Mechanically tuned lengths. Nordost cuts each conductor to a length derived from a proprietary formula for the cable's geometry.
  • Made in the USA. Nordost cables are built and terminated at the factory in Holliston, Massachusetts.
Specifications
Type AC power cord, single
Conductors 7 × 16 AWG
Conductor material Silver-plated 99.99999% oxygen-free copper, solid core
Insulation Fluorinated ethylene propylene (FEP)
Construction Dual Mono-Filament, mechanically tuned length
Shield coverage 90% overall, AC-optimized
Capacitance Not published by Nordost
Inductance Not published by Nordost
DC resistance Not published by Nordost
Velocity of propagation Not published by Nordost
Wall plug US NEMA 5-15, straight or 90°; EU, UK and AUS plugs at the same price to order
Equipment end IEC C15 (15 A), straight or low-profile, or IEC C19 (20 A); 20 A powerCON, figure-8 and 30 A locking to order
Lengths offered 1 m to 7 m in the selector; other lengths to order
Sold as Single cord
Warranty Limited lifetime warranty to the original purchaser

Nordost Norse 3 brochure (Tyr 3 specifications) Specifications from the Nordost Norse 3 brochure and the Norse 3 retail price sheet (November 2026). Nordost quotes electrical values per foot; lengths are metric.

Where it sits in the range

Nordost power cords, from Leif 3 to Odin Gold.

For distribution, see the QBASE QB4 Mark III and QB8 Mark III.

Plan your Nordost system with Pearl Audio

Pearl Audio is an authorized Nordost dealer. We can measure your runs, recommend terminations for your amplifier and speakers, special-order lengths and connectors that are not in the selector, and let you hear Nordost cabling in our Portland showroom by appointment. Call (503) 222-2599 or email sales@pearlaudio.com.

The Pearl Audio experience

How we work with you

A system at this level should be heard, thoughtfully matched, and properly set up. From the first audition to long-term ownership, you work with the same people, in person.

  1. 01

    Listen first

    Hear the Tyr 3 Power Cord by appointment in one of our two purpose-designed demonstration rooms, with your own music and time to compare without pressure.

  2. 02

    Delivery and installation

    We deliver and install throughout the Portland area, taking care of placement, connections, ventilation and system configuration ourselves.

  3. 03

    Support for as long as you own it

    We support everything we sell for as long as you own it, whether the answer comes by phone, in your home, or through factory service.

  4. 04

    A path for what comes next

    Trade-in assistance and qualifying 100% Trade-Up options give you flexibility when your listening priorities or your system change.

Search