Reference Power Distribution Block | Trimira Audio Specialist
The Nordost QBASE Mark III from the QRT Series is a reference-grade passive AC distribution unit designed to provide a clean, stable power foundation for high-performance two-channel HiFi systems and home theaters.
Built around Nordost’s proprietary Star-Earth Topology, the QBASE Mark III addresses ground-loop interactions, stray current, and unwanted noise between connected components without relying on conventional series filtering that can restrict instantaneous current delivery.
At Trimira Audio, we recommend the Nordost QBASE Mark III for audiophiles seeking optimized power distribution, improved system clarity, and maximum dynamic performance from high-end audio and home cinema components across Brisbane, Queensland, and Australia.
Key Features & Audio Engineering Highlights
Star-Earth Grounding Topology
Nordost's Star-Earth architecture routes AC outlets back toward a central input point while designating a single Primary Earth outlet.
This configuration is designed to reduce:
- Ground-loop interactions
- Stray current
- Inter-component noise
- Ground-path crosstalk
Without introducing conventional in-line filtering or current-limiting circuitry.
Dual-Level PCB Architecture
The Mark III incorporates a redesigned dual-layer circuit board that separates grounding pathways from live and neutral traces, helping minimize electromagnetic interaction and improve electrical isolation.
Internal Micro Mono-Filament Wiring
Nordost's internal Micro Mono-Filament wiring and optimized copper trace geometry are designed to maximize:
- Instantaneous current delivery
- Power transmission
- Electrical continuity
- System dynamic performance
Mechanically Tuned Extruded Aluminum Body
The rigid extruded aluminum enclosure provides:
- Mechanical stability
- Vibration resistance
- Reduced microphonic effects
- RF/EMI shielding
Eddy-Current Resistance Sink
An internal resistance sink is designed to absorb and dissipate stray eddy-current energy, contributing to a quieter electrical environment.
Dedicated WBT Grounding Terminal
A high-quality external grounding terminal provides an additional connection point for compatible grounding accessories and systems, including Nordost QKORE and related QRT products.
Product Specifications
| Specification |
Technical Detail |
| Distribution Type |
Passive Star-Earthed AC Distribution Block (Zero In-Line Filtering) |
| Available Configurations |
QB4 Mark III (4 Outlets) / QB8 Mark III (8 Outlets) / QB6 (UK Socket Version) |
| Socket Regional Options |
US (NEMA), EU (Schuko), AUS (Australian 3-Pin Standard), UK |
| Input Connection Options |
IEC C-14 (15 A / 10 A) or IEC C-20 (20 A / 16 A) High-Current Inlet |
| Internal Wiring |
Nordost Micro Mono-Filament Conductors |
| PCB Layout |
Dual-Level Separated Ground & Live/Neutral PCB Structure |
| Grounding Terminal |
Heavy-Duty Gold-Plated WBT Binding Post for External Earth Connections |
| Dimensions (QB4) |
234 mm × 67 mm × 120 mm (9.2" × 2.6" × 4.7") |
| Dimensions (QB8) |
460 mm × 67 mm × 120 mm (18.1" × 2.6" × 4.7") |
| Net Weight (QB8) |
Approx. 2.5 kg (5.5 lbs) |
Why Choose Trimira Audio for Your Nordost Power Solutions?
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Trimira Audio Reference Showroom – Experience the QBASE Mark III within a complete high-end system and evaluate its integration with premium source components, amplification, and loudspeakers.
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QRT System Matching Guidance – Our specialists can advise on pairing the QBASE Mark III with Nordost power cables including Blue Heaven, Red Dawn, Frey 2, and Valhalla 2, as well as QRT accessories such as QPOINT and QKORE.
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Trusted Australian HiFi Destination – Supporting audiophiles and music enthusiasts throughout Queensland and Australia with genuine products, local warranty, and specialist system advice.
What’s Included in the Box
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1 × Nordost QBASE Mark III AC Distribution Unit (QB4 or QB8 in Australian socket configuration)
- Protective Rubber Feet
- Spare Fuse (Internal Placement)
- User Guide & Official Nordost Warranty Documentation
