The Platinum 300 3G represents the pinnacle of Monitor Audio’s engineering and craftsmanship, combining cutting-edge driver technology with elegant design to create a loudspeaker that sets new standards for its class
Finance example
£2,300.00 initial 20% deposit then £306.67 per month for 30 months. Other finance terms available. Finance subject to statusPlatinum 300 3G
£11,500
The Platinum 300 3G represents the pinnacle of Monitor Audio’s engineering and craftsmanship, combining cutting-edge driver technology with elegant design to create a loudspeaker that sets new standards for its class. At the heart of this flagship model is a carefully balanced driver array: the MPD III high-frequency transducer delivers remarkable clarity and airiness, the dedicated 4-inch RDT III mid-range driver ensures lifelike vocal and instrumental reproduction, and the pair of powerful 8-inch RDT III bass drivers provide deep, authoritative low-frequency performance. Together, these components work in perfect harmony to produce a presentation of exceptional scale, depth, and musical realism.
As the most accomplished model in the Platinum Series 3G, the Platinum 300 3G is more than just a loudspeaker—it is a statement of uncompromising audio excellence. It creates a totally immersive soundstage that fills the listening space with a rich, three-dimensional performance, making it equally suited to high-end stereo listening or the front stage of an elite home cinema system. Every detail has been meticulously considered, from its rear-ported cabinet design that optimizes airflow and bass response, to its luxurious finish that blends seamlessly with both modern and traditional interiors.
Adding to its prestige, the cabinet is embellished with etched decorative inlays, underscoring the craftsmanship and artistry behind the design. Available in three elegant finishes—Piano Black, Piano Ebony, and Pure Satin White—the Platinum 300 3G looks as extraordinary as it sounds.
MPD III transducer for extended, detailed high frequencies
4” RDT III mid-range driver delivering natural, articulate mids
Two 8” RDT III bass drivers for powerful, controlled low end
Flagship three-way loudspeaker design for full-range accuracy
Rear-ported enclosure enhancing bass performance
Immersive soundstage with scale and precision
Luxurious design with etched inlays and premium finishes
Available finishes: Piano Black, Piano Ebony, Pure Satin White
Tech spec
System Format
3-Way
Sensitivity (2.83 Vrms @ 1m, Free-Field)
88 dB
Continuous Power Handling
400 W
Port Tuning Frequency
32 Hz
Frequency Response, Free-Field (-6dB)
25 Hz – 60 kHz
Nominal Impedance
4 Ohms
Recommended Amplifier Power
200 – 800 W
Crossover Frequency
LF/MF: 650 Hz
MF/HF: 3 kHz
External Dimensions
1131.1 x 429.8 x 525 mm
Weight (each)
53.6 kg