Monitor Audio Platinum 300 3G Floorstanding Speakers

A flagship three-way rear-ported floorstanding loudspeaker with MPD III tweeter, 4" midrange, 2 x 8" woofers, and 88 dB sensitivity

The Monitor Audio Platinum 300 3G is the flagship floorstanding speaker in the Platinum Series 3G, designed to deliver exceptional scale and depth from a full-size three-way loudspeaker platform. Its rear-ported enclosure, larger twin-bass-driver layout, and carefully crafted cabinet construction are intended for systems where room-filling authority and high-end refinement are both priorities.

A new MPD III transducer handles high frequencies, joined by a 4" RDT III midrange driver and twin 8" RDT III bass drivers. Monitor Audio says this driver combination gives the Platinum 300 3G exceptional scale, depth, and a totally immersive soundstage, with a presentation suited to both music and film.

The Platinum 300 3G is finished with etched inlays and is available in Piano Black, Piano Ebony, and Pure Satin White. As the largest floorstanding model in the range, it is designed for listeners who want the full expression of Monitor Audio’s Platinum Series 3G engineering.

Objects of Desire

The Platinum 300 3G represents the top floorstanding model in Monitor Audio’s Platinum Series 3G. Its larger cabinet and twin 8" bass drivers allow it to deliver deeper extension and greater scale than the smaller Platinum 200 3G, while retaining the same core MPD III and RDT III driver technologies.

MPD III and RDT III Driver Technology

The high-frequency section uses Monitor Audio’s MPD III transducer, partnered with RDT III cones for the midrange and bass drivers. This combination is intended to improve balance, reduce distortion, and deliver a large, open soundstage with lifelike scale and low-frequency control.

Features

• Flagship three-way floorstanding loudspeaker
• MPD III high-frequency transducer
• 4" RDT III midrange driver
• Twin 8" RDT III bass drivers
• Rear-ported cabinet
• Totally immersive soundstage
• Etched inlays
• Five-year warranty

Specifications

System Format: 3-way

Frequency Response, Free-Field (-6 dB): 25 Hz–60 kHz

Frequency Response, In-Room (-6 dB): 17 Hz–60 kHz

Sensitivity: 88 dB

Impedance (Nom., Min.): 4 ohm, 4 ohm

Bass Alignment: Ported

Port Tuning Frequency: 32 Hz

Crossover Frequency: 650 Hz, 3 kHz

Drivers:
HF: 1 x MPD III tweeter
Mid: 1 x 4" RDT III midrange driver
LF: 2 x 8" RDT III bass drivers

Dimensions (WHD): 16.9" x 44.5" x 20.6" (429.8 x 1,131.1 x 525 mm)

Weight: 118 lb. 2 oz. (53.6 kg)