Precision Low-Frequency Integration | Available at Trimira Audio
The Nordost Blue Heaven Subwoofer Cable is a dedicated analogue interconnect designed for active subwoofer applications in high-performance two-channel and home-theatre systems.
Part of Nordost's Leif Series, it combines silver-plated solid-core OFC conductors, parallel flat-line geometry, FEP insulation, comprehensive shielding, and flexible RCA/XLR termination options.
The design is intended to provide a controlled, low-loss signal connection between the main system and active subwoofer, supporting precise integration of low-frequency output with the main loudspeakers.
At Trimira Audio, we recommend the Blue Heaven Subwoofer Cable for active subwoofers where cable geometry, shielding, and connector configuration are important considerations.
Key Features & Technological Innovations
Silver-Plated Solid-Core OFC Conductors
The cable employs 4 × 22 AWG solid-core conductors manufactured from 99.9999% high-purity OFC copper with pure silver plating.
The solid-core construction provides consistent conductor geometry and avoids the strand interaction associated with conventional multi-stranded cables.
Flat-Line Geometry & Precision Lay
The conductors are arranged in a controlled parallel configuration designed to manage:
- Capacitance
- Inductance
- Electrical interaction
- Mechanical resonance
High-Grade Extruded FEP Insulation
Fluorinated Ethylene Propylene (FEP) provides a low-loss dielectric environment with strong mechanical and thermal stability.
The specified propagation velocity is 85% of the speed of light.
100% Coverage Shielding
A combined braid-and-foil shielding structure provides total coverage, helping protect the low-level subwoofer signal from:
- RF interference
- Electromagnetic interference
- External electrical noise
- Environmental crosstalk
Flexible Termination Configurations
The Blue Heaven Subwoofer Cable can be configured with:
- Straight RCA
- Y-split RCA
- Y-to-Y RCA
- Neutrik 3-pin XLR
This allows the cable to accommodate different subwoofer input arrangements and system architectures.
Technical Specifications
| Specification |
Blue Heaven Subwoofer Cable |
| Series |
Leif Series |
| Insulation |
High-Grade Extruded Fluorinated Ethylene Propylene (FEP) |
| Construction |
Precision Parallel Flat-Line Lay |
| Conductors |
4 × 22 AWG Solid-Core |
| Conductor Material |
Silver-Plated 99.9999% Solid-Core Oxygen-Free Copper (OFC) |
| Capacitance |
60.0 pF/ft |
| Inductance |
0.035 µH/ft |
| Shield Coverage |
100% Braid and Foil Shielding |
| Velocity of Propagation |
85% Speed of Light |
| Termination Options |
Gold-Plated Low-Mass RCA or Neutrik 3-Pin XLR — Straight, Y or Y-to-Y |
| Standard Lengths |
1.0 m, 2.0 m, 3.0 m, 4.0 m, 5.0 m, 7.0 m, 10.0 m + Custom Lengths |
Choosing the Correct Subwoofer Configuration
Straight
Best suited to a conventional single RCA or XLR subwoofer input.
Y-Splitter
Useful where the subwoofer provides left and right analogue inputs but the source system provides a single subwoofer output.
Y-to-Y
Suitable for configurations requiring a split connection at both ends.
Trimira Audio can confirm the correct configuration based on your amplifier, preamplifier, DAC, AV processor, and subwoofer inputs.
Consult with the Audio Specialists at Trimira Audio
The Nordost Blue Heaven Subwoofer Cable provides a dedicated solution for integrating active subwoofers into high-performance audio systems.
Trimira Audio can assist with:
- Straight versus Y-split configuration
- RCA versus XLR connectivity
- Subwoofer input matching
- Cable length selection
- Two-channel subwoofer integration
- Home-theatre subwoofer connections
- Private system auditions
For precise low-frequency system integration, Blue Heaven combines 22 AWG silver-plated solid-core OFC, parallel flat-line geometry, FEP insulation, 100% shielding, and flexible RCA/XLR termination options in a dedicated Nordost subwoofer cable.
