Tannoy Westminster Royal GR Loudspeakers
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Product Overview & Specifications
The Tannoy Prestige Westminster Royal GR (Gold Reference) is the pinnacle 2-way floorstanding loudspeaker in Tannoy's flagship Prestige series, custom-engineered for large listening spaces. Handcrafted in Scotland, the 530-liter cabinet features an intricate compound horn structure—combining a front-firing midrange horn with a complex rear-loaded low-frequency horn—constructed from high-density birch plywood and 19 mm MDF, finished in hand-selected oiled burr walnut with precision gold-anodized aluminum trims.
At the center of the Westminster Royal GR is a 15-inch (380 mm) Gold Reference Dual Concentric transducer. Driven by Tannoy's high-energy Alnico magnet system and PepperPot WaveGuide, it pairs a fiber-enriched paper pulp woofer cone with a heat-treated 52 mm (2") aluminum-magnesium alloy high-frequency compression driver. Delivering an unprecedented 99 dB/W sensitivity and up to 127 dB peak SPL, the speaker incorporates hard-wired time-compensated crossovers, Differential Materials Technology (DMT) internal bracing, and a 5-point binding post array for ground-referenced RF noise elimination.
KEY FEATURES & PROPRIETARY TECHNOLOGIES
- Compound Horn-Loaded Enclosure Design: Incorporates a front midrange horn and a rear-loaded low-frequency folded horn to deliver explosive dynamics and extended bass down to 18 Hz.
- 15" Gold Reference Dual Concentric Transducer: Aligns low- and high-frequency acoustic centers on a single axis for time-coherent point-source dispersion and precise stereo imaging.
- Alnico Magnet System & PepperPot WaveGuide: High-energy Alnico motor structure drives symmetrical, controlled high-frequency dispersion via a precision PepperPot WaveGuide.
- Aluminium-Magnesium Compression Driver: Heat-treated 52 mm (2") dome compression driver with a Mylar surround provides clean, articulate high-frequency response up to 27 kHz.
- Hard-Wired Crossover with Treble Controls: Built with low-loss laminated inductors and thick-film resistors, featuring front-panel HF shelving (±3 dB from 1 kHz to 27 kHz) and slope controls (+2 dB to -6 dB/octave).
- 5-Point Binding Post Array: Gold-plated 24ct binding posts support bi-wiring/bi-amping alongside a dedicated fifth terminal for chassis grounding to mitigate RF interference.
- High-Density Cabinet with DMT Bracing: Heavily damped 19 mm MDF with internal birch plywood bracing uses Differential Materials Technology to couple drivers and eliminate enclosure resonances.
- Handcrafted Oiled Burr Walnut Furniture-Grade Cabinet: Finished in genuine oiled walnut veneer with burr walnut inlays, complete with Tannoy Prestige wood wax care product.
SPECIFICATIONS
| Specification | Detail |
|---|---|
| Product Category | 2-Way Compound Horn-Loaded Floorstanding Loudspeaker |
| Series / Model | Tannoy Prestige Gold Reference – Westminster Royal GR-OW |
| Driver Technology | 15" (380 mm) Gold Reference Dual Concentric Transducer |
| Low-Frequency Driver | 380 mm (15") Paper Pulp Cone with Twin-Roll Impregnated Fabric Surround (52 mm / 2" Voice Coil) |
| High-Frequency Driver | 52 mm (2") Aluminium/Magnesium Alloy Dome Compression Driver with Round Wire Voice Coil & PepperPot WaveGuide |
| Magnet Type | Tannoy High-Energy Alnico Magnet System |
| Frequency Response | 18 Hz – 27 kHz (-6 dB) |
| Sensitivity (1W @ 1m) | 99 dB |
| Nominal Impedance | 8 Ω |
| Power Handling | 175 W Continuous | 700 W Peak |
| Recommended Amplifier Power | 20 W – 350 W RMS |
| Maximum SPL | 121 dB Continuous | 127 dB Peak |
| Dispersion Alignment | 90 Degrees Conical |
| Crossover Type & Frequencies | Hard-Wired Passive, Low-Loss, Time-Compensated (2nd-Order Low-Pass / High-Pass) @ 200 Hz Acoustic, 1.0 kHz Electrical |
| Crossover Adjustments | HF Shelving: ±3 dB (1.0 kHz to 27 kHz) | HF Slope: +2 dB to -6 dB / octave (5 kHz to 27 kHz) |
| Enclosure Type | Compound Horn (Front Midrange Horn + Rear-Loaded Low-Frequency Horn) |
| Cabinet Construction | 19 mm (3/4") MDF with Plywood Internal Bracing & Differential Materials Technology (DMT) |
| Terminals | 5 x 4 mm 24ct Gold-Plated Custom Tannoy Binding Posts (Bi-Wireable + Dedicated RF Ground Terminal) |
| Finish & Trim | Handcrafted Oiled Walnut Veneer with Burr Walnut Inlays & Gold-Anodized Aluminum Trim |
| Dimensions (H x W x D) | 1395 x 980 x 560 mm (54.9" x 38.6" x 22.1") |
| Net Weight | 140.2 kg (308.4 lbs) per speaker |
| Included Accessories | Bi-Wire Bridge Links, Prestige Wood Wax, Felt Pads, Grille Key, Metal Feet, Welcome Pack Documentation |
| Manufacturer | Tannoy (UK) |
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Tannoy Westminster Royal GR Loudspeakers
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