Monitor Audio Loudspeaker PL300 II (Pair)

PL300 II

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A further leap in dimension brings still greater rewards in the form of the outstanding PL300 II. Standing at over a metre in height and designed to move the air in larger listening environments, the PL300 II will energise your listening across an enormous sound stage, magically studded with an abundance of natural detail. Its four driver system involving twin 8” RDT®II drivers, 4” TLE loaded midrange and MPD tweeter, captures all the fluid tonal complexity and dynamic richness of each performance on a truly orchestral scale. Explore the depths and climb to the heights of your music and film favourites with an effortlessness that confirms an inescapable truth: the bigger the Platinum, the more precious the prize.

TECHNOLOGY

  • 2 x 8" RDT®II long throw bass drivers
  • 4" RDT II mid-range driver
  • MPD (Micro Pleated Diaphragm) high frequency transducer designed specifically for Platinum II
  • 2 x HiVe®II ports
  • New patented 'DCF' (Dynamic Coupling Filter) mechanism for more natural sound
  • Bespoke speaker terminals and footings
  • Underhung, edge-wound voice coils: greater driver efficiency and lifelike dynamics, less distortion
  • Bolt through drivers: clearer sound and cleaner aesthetics
  • Anti-Resonance Composite (ARC) mid-range housings and baffle components: reduced cabinet vibration, purer sound quality
  • TLE (Tapered Line Enclosure) sealed internal enclosure for mid-range drivers: greater sound accuracy and reduced cabinet vibration
  • Hand-upholstered front baffle: the very highest quality Inglestone leather supplied by Andrew Muirhead
  • Individual driver grilles
  • Finish options: Santos Rosewood or Ebony natural wood veneers with clear gloss piano lacquer, or Piano black gloss lacquer

BESPOKE TERMINALS
Platinum II’s terminal design is precision milled from solid copper with Rhodium plated conductor parts. Rhodium has been selected for its excellent electrical conductivity and resistance to oxidisation. Terminals are designed to accept a spade, 4mm banana plug or bare wire, up to 4mm in diameter (7AWG).

DCF (DYNAMIC COUPLING FILTER)
A new innovation in every driver replaces the usual rigid coupling of driver and voice coil with a pliable one. This ‘Dynamic Coupling Filter’ is a nylon ring ingeniously calibrated to be rigid up to the crossover frequency, and to act like a spring above it. In so doing the DCF helps to dampen surplus high frequency energy produced by the driver. It’s also perforated to encourage voice coil cooling and release air pressure from behind the cone for maximum driver efficiency. Result: more natural sound.

MPD (MICRO PLEATED DIAPHRAGM) HIGH FREQUENCY TRANSDUCER
Developed over many months of intensive testing and listening, the MPD High Frequency Transducer is a landmark achievement by the engineering team for Platinum II. It represents an imaginative re-working of an existing technology, transforming a successful idea into an audiophile super-driver, having greater accuracy and efficiency than ever before. Using a new, proprietary low-mass pleated diaphragm with a surface area eight times larger than that of a traditional dome tweeter, the MPD transducer works like a super-fast accordion by rapidly squeezing the pleats to produce a smooth, wide, naturally fast response up to 100kHz. As a result it sounds more lifelike, releasing the high harmonic spectrum of every note without the distortion that blurs definition.

RDT®II (RIGID DIAPHRAGM TECHNOLOGY 2ND GENERATION)
A composite ‘sandwich’ structure made from ultra-thin low mass skins, bonded to a honeycomb Nomex® core material. It is very light and very strong, meaning that it can respond with great speed without bending - just like a perfect piston. RDT II uses C-CAM® for the front skin, while the rear skin is made from a woven carbon fibre material. We discovered that the new structure reduces distortion by over 8dB above 300Hz, which makes RDT II the lowest distortion cone technology in Monitor Audio’s history.

TLE (TAPERED LINE ENCLOSURE)
The tapered and sealed internal enclosure for Platinum II’s mid-range drivers is cast from ARC material and designed to stop the formation of standing waves (internal sound wave reflections) in the cabinet. Result: greater midrange accuracy and reduced cabinet vibration for more accurate sound.

Feature
System Format 3 Way - 4 Driver
Frequency Response (-6dB - IEC 268-13) 28Hz - 100kHz
Sensitivity (1W@1M) 90dB
Maximum S.P.L. 117.8dBA (pair)
Nominal Impedance 4Ω (4.2Ω min. @ 111Hz)
Power Handling (RMS) 300W
Recommended Amplifier Requirements (RMS) 100 - 300W
Cabinet Design Two HiVe®II ports Sealed mid-range TLE enclosure
Drive Unit Compliment 2 x 8" RDT®II long-throw bass drivers 1 x 4" RDT II mid-range driver 1 x MPD high frequency transducer
Crossover Frequency MF/HF: 3.4kHz LF/MF: 500Hz
External Dimensions (Inc. plinth) (H x W x D) 1113 x 410 x 470mm (4313/16 x 161/8 x 181/2”)
External Dimensions (Inc. feet & spikes) (H x W x D) 1158 x 410 x 470mm (459/16 x 161/8 x 181/2”)
Weight (each) 54.52kg (120lb)

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