• Floorstanders Floorstanders
  • C-CAM drivers C-CAM drivers
  • Ribbon Tweeter Ribbon Tweeter
  • Driver size 2 x BASS 8in
  • Driver size MID 4mm
  • Footprint 410mm x 470mm
  • 3-way 3-way


PL300 technology
  • Twin Ported HiVe® II technology
  • Sealed Mid-range TLE® (Tapered Line Enclosure)
  • 2 x 8" C-CAM® (Ceramic-Coated Aluminium/Magnesium) long-throw bass drivers with RDT® (Rigid Diaphragm Technology)
  • 1 x 4" RDT mid-range driver
  • 1 x C-CAM high frequency ribbon transducer
  • ARC® (Anti-Resonance Composite) baffles, plinths and mid-range driver housing
  • All cabinet finishes have hand-upholstered front baffles in black Ingleston premium grade leather
  • Finish options: Santos Rosewood veneer with clear gloss piano lacquer, Ebony veneer with clear gloss piano lacquer, Piano black gloss



Frequency Response

28 Hz - 100 KHz

Sensitivity (1W@1M)

90 dB

Nominal Impedance

4 Ohms

Maximum S.P.L (Per pair in room)

118.6 dBA

Power Handling (RMS)

300 W

Recommended Amplifier Requirements (RMS)

100 - 300 W

Bass Alignment

Twin ported HiVe II technology
Sealed mid-range TLE

Mid / H.F Crossover Frequency

4000 Hz

Bass Low Pass Crossover Frequency

550 Hz

Driver Unit Complement

2 x 8" long throw RDT bass drivers
1 x 4" RDT mid-range driver
1 x C-CAM high frequency ribbon transducer

External Dimensions including fixed plinth & feet (HxWxD)

1113 x 410 x 470 mm
(4313/16 x 161/8 x 181/2)

Weight (each) including plinth

43.8Kg (96.4lbs)

Professional reviews

What Hi-Fi? Sound and Vision


September 2009

PL300AV system

What Hi-fi were blown away when they put the PL300AV to the test '...simply put, the PL300AV is a truly fabulous surround system, one of the best we've ever tried.'

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What Hi-Fi? Sound and Vision


March 2008

Platinum PL300

'...the PL300 are some of the best speakers we've heard. The sound is simple to sum up: it's transparent and massively detailed...'

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Hi-Fi Choice Magazine


December 2007

Aiming High - PL300

'...here's a new departure for Monitor Audio - an unashamedly luxurious, technically ambitious loudspeaker...where decisions about material and construction techniques have been made with a purist focus, and largely without regard to cost or technical difficulty...the standard of fit and finish is nothing less than exquisite...the sounds of individual instruments are particularly well served...the effect is nothing short of breathtaking, providing some real spine-tingling moments, in a way that you often hear in a live music event, but rarely encounter in the reproduced article... 5k for a pair of speakers of this complexity, build quality and, above all, musical performance is far from extravagant.'

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AREADVD (German Webzine)


October 2007

Platinum 5.0 Surround System - reaching for the stars

"Need a massage for your eardrums? The new Monitor Audio Platinum series will spoil the auditory canals in a very special way thanks to its excellent sound characteristics. The surround presentations give you such a goose bump feeling, which is only possible with absolutely exceptional  systems. The excellent tuning between the front and centre speakers supplement themselves in the multi-channel operation to  an unbeatable, harmonising team and increase the listening pleasure...whoever would like to reach for the stars in their home cinema should  make a listening appointment at the MA Platinum."

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Audio Video Magazine (Russia)


July 2007

Precision accuracy: The PLATINUM PL300

"...however, the PL300 has a hugely optimistic middle range and unbelievable treble, because of the successful design of the tweeters. In this case, there is none of the expensive brightness of modern recordings or the “sand” of old recordings...choose a suitable environment and do some work on the room, and you will then have what some companies’ advertisements call “the ultimate purchase!"

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Hi-Fi World Magazine


June 2007

Heavy Mettle

"The PL300 has the feeling of being able to travel endlessly downward with nonchalant ease...bass lines strode along with muscular grip...paired with the right ancillaries this big beast sounds breathtakingly fast, dynamic and clear...the engineering is both unique and impressive...the PL300's bring life to music and can be overwhelmingly enjoyable."

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User reviews

David Ferebee Monitor Audio UK


January 2015

Get Out Of The Way Wilson, Dynaudio, B&W, and Others

I am always looking to improve everything about my sound system including the speakers and have auditioned brands costing 3 times as much as my PL300s and simply cannot find anything I like better!

Luke Fehnert Monitor Audio UK


November 2013

I have owned these speakers for 2 years now and they sound better and better. I suggest you use a good powerful valve amp with them to bring out their best form.

Robert Lappin Monitor Audio UK


September 2013

Our rosewood PL300s look absolutely fantastic on our burgundy axe minster carpet and next to our solid red gum entertainment unit. Our PL300s are used as the sound for our internet services, 55 t.v., DVDs, vinyl recordings and CDs. Despite the massive mid and upper massive bass performance our ears tell us that its the PL300's brilliant tweeter and its precise mid-range that makes film, songs and voice so life-like. Sadly our listening room just isn't big enough to do full justice to the deepest bass notes; in our home they seem a little muted.

Manbat - AV Forums UK Monitor Audio UK


March 2013

Its alive - it really is. I have just enjoyed a rather sublime several weeks with the PL300s.
I can safely say that the PL300s are without a doubt marvelous speakers.
They bring out instruments in a three dimensional soundstage, revealing obvious differences and nuances that have not been heard before.

David Bowie - Sound and Vision - the rhythmic sound of the pss pss emanating from the front left speaker is like nothing I’ve heard before – its like the speaker is spitting at you (in a good way)

Angelique Kidjo – Voodoo Child from the album Oremi – is simply stunning. There are so many things going on in this recording and you hear them all. Little whispers are abound in the track – but now I hear them in places that I didn’t think were in the recording. This is one of my test tracks and having listened to this on systems costing several times the value of my own – I give the PL’s a standing ovation. I listened to this track recently on some B&W 802d's with very expensive mono-blocks, cables, CD player - the PL300s easily held their own and IMO outperformed the 802’s in detail and clarity.

Fink – Perfect Darkness – Again an array of detailed instruments with precise imaging.

Elbow - live DTS recording is again brilliant.

A selection of HD tracks in 24 bit 192 consisting of Jazz, classical and pop. The timbre of drums and vibration of strings is lovely – but what is also remarkably impressive is the ambience of the sound – the presence of music that you feel and sometimes makes the hair on the back of your head stand on end.

A selection of Linn SACD samplers – were superb.

Movies – I watched the three Dark Knight films in a row. Nearly 8 hours later there was no ear fatigue and I just kept creeping up the sound to thunderous levels and enjoyed it even more.

I can’t say a bad word about these speakers. They are simply brilliant and if you are considering do not forget to audition them...

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