Low-Noise Analogue Precision in the Norse 2 Series | Available at Trimira Audio
The Nordost Heimdall 2 Tonearm Cable Plus is a dedicated phono interconnect designed to preserve the extremely low-level signals generated by phono cartridges.
As part of Nordost's Norse 2 Series, it combines Micro Mono-Filament technology, silver-plated solid-core OFC conductors, controlled twisted-pair geometry, extensive shielding, and a flexible grounding arrangement.
The result is a carefully engineered connection between tonearm and phono stage, with particular attention to electrical noise rejection, mechanical stability, and low-level signal integrity.
At Trimira Audio, we recommend the Heimdall 2 Tonearm Cable Plus for high-performance turntable systems using moving-magnet or moving-coil cartridges.
Key Features & Technological Innovations
Proprietary Micro Mono-Filament Construction
Each conductor is spiral-wrapped with an FEP filament before the outer FEP jacket is applied.
This creates a low-contact dielectric environment designed to minimize dielectric interaction and support rapid signal propagation.
Four 24 AWG Silver-Plated Solid-Core Conductors
The cable employs 4 × 24 AWG solid-core conductors manufactured from high-purity OFC copper with pure silver plating.
Solid-core construction provides consistent conductor geometry without the strand interaction associated with conventional stranded phono cables.
Shielded Twisted-Pair Geometry
The conductors are arranged in a mechanically controlled twisted-pair configuration designed to improve common-mode noise rejection while controlling internal electrical and mechanical interaction.
97% Dual-Layer Shielding
A combined braid-and-foil shielding architecture provides approximately 97% coverage, helping protect sensitive phono signals against:
- RF interference
- Electromagnetic interference
- External electrical noise
- Environmental interference
Detachable Grounding Whips
The Tonearm Cable Plus incorporates a grounding arrangement with detachable silver-plated Micro Mono-Filament ground whips, providing flexibility when configuring different turntable, tonearm, and phono-stage grounding arrangements.
Correct grounding should always follow the requirements of the specific turntable and tonearm.
Precision Hand Terminations
The cable can be configured with:
- Straight 5-pin DIN
- 90-degree 5-pin DIN
- MoonGlo RCA
- Neutrik XLR
with appropriate grounding connections for compatible installations.
Technical Specifications
| Specification |
Heimdall 2 Tonearm Cable Plus |
| Series |
Norse 2 Series |
| Insulation |
Fluorinated Ethylene Propylene (FEP) |
| Construction |
Mechanically Tuned Lay, Micro Mono-Filament, Shielded Twisted Pair |
| Conductors |
4 × 24 AWG Solid-Core |
| Conductor Material |
99.99999% Solid-Core Oxygen-Free Copper (OFC) with Pure Silver Plating |
| Capacitance |
25.0 pF/ft |
| Inductance |
0.06 µH/ft |
| Shield Coverage |
97% Braided & Foil Shielding |
| Velocity of Propagation |
80% Speed of Light |
| Tonearm Terminations |
Straight 5-Pin DIN, 90-Degree 5-Pin DIN, MoonGlo RCA, or Neutrik XLR |
| Output Terminations |
Gold-Plated MoonGlo RCA or Neutrik XLR, Plus Micro Mono-Filament Ground Whips |
| Standard Lengths |
1.25 m, 1.5 m, 2.0 m + Custom Lengths |
Consult with the Vinyl Specialists at Trimira Audio
The Nordost Heimdall 2 Tonearm Cable Plus is suited to demanding analogue systems where the tonearm-to-phono-stage connection requires careful attention to shielding, grounding, capacitance, and mechanical construction.
Trimira Audio can assist with:
- Confirming tonearm connector compatibility
- Straight versus right-angle DIN selection
- RCA versus balanced XLR configuration
- Grounding requirements
- Cable length selection
- Cartridge/phono-stage system matching
- Private analogue-system auditions
For a high-performance phono connection, Heimdall 2 combines silver-plated solid-core OFC, Micro Mono-Filament FEP construction, 97% shielding, mechanically controlled twisted-pair geometry, and flexible grounding options in a dedicated Norse 2 Series tonearm cable.
