• Floor Standing Floor Standing
  • C-CAM drivers C-CAM drivers
  • Ribbon Tweeter Ribbon Tweeter
  • Driver size Twin 6 1/2in
  • Driver size Mid 4in
  • Footprint 210mm x 330mm
  • 3-way 3-way
  • Bolt through driver Bolt through driver


GX300 technology
  • C-CAM® (Ceramic-Coated Aluminium/Magnesium) ribbon transducer design – providing extension to a class leading 60KHz
  • HiVe® port technology for better transient response and tighter bass
  • C-CAM RST® (Rigid Surface Technology) bass/mid-range driver
  • Single bolt through driver fixings for improved bracing, rigidity and driver/baffle de-coupling
  • Die-cast alloy terminal panel arrangement with high quality bi-wire terminals and high end spade type link cables
  • Pureflow® silver internal cabling
  • Selected premium quality wood veneers or high gloss piano finishes.
  • Rigid 20mm MDF construction throughout, employing radial and cross-bracing techniques for high rigidity resulting in low cabinet colouration
  • Invisible magnetic grille fixings provide a sleek visual effect


System Format

3 Way

Frequency Response

30 Hz - 60 kHz

Sensitivity (1W@1M)

90 dB

Nominal Impedance

8 ohms

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

116.8 dBA

Power Handling (RMS)

200 W

Recommended Amplifier Requirements (RMS)

100 - 200 W

Bass Alignment

Bass reflex. HiVe port system

Crossover Frequency

L.F - M.F: 790 Hz
M.F - H.F: 2.3 kHz

Drive Unit Compliment

2 x 6.5" RST bass driver
1 x 4" RST mid-range driver
1 x C-CAM H.F ribbon transducer

External Dimensions excl Stand (H x W x D)

1060 x 210 x 330 mm
(41 3/4 x 8 1/4 x 13 inch)

Weight (each)

27.2 Kg (59.9 lbs)

Professional reviews


November 2012

TAS: GX300 Review

“The overall presentation of the GX300 is fast, punchy, holographic, and exciting.”

“This ribbon’s extended, airy, and remarkably smooth high-frequency response is one of the first things that jumps out when auditioning the GX300… In fact, the overall presentation of the GX300 is fast, punchy, holographic, and vividly exciting. This is a speaker that hits the ground running.”

“The enclosures are beautifully finished, and the entire package has a feeling of elegant class.”

“The GX300 bass response strikes a fine balance between the nimble and weighty.”

“Vocals too, are very fine,… the GX300 was always revealing of technique and phrasing, with good overtones, solid presence, and a strong sense of each singer’s conviction.”

“The GX300 also presents a big, bold, rather upfront soundstage that still conveys a good impression of depth. On the San Francisco Symphony Mahler recordings I’ve recently written about, the stage filled my back wall, and there was plenty of air around instruments, especially those in the high frequency range, and impressive front-to-back dimensionality.”

“Two areas in which the GX300 excels are dynamic weight and rhythmic momentum. As I said above, this speaker hits the ground running, and is a lot of fun to listen to.”

“This is a fine loudspeaker.”


November 2012

SoundStage! Hi-Fi GX300 Review

“The sound of the strings was so natural and so brilliantly articulated that I could hear the hollow resonance of the guitar body behind them... I was impressed with the levels of resolution and neutrality conveyed by the GX300s.”

“Listening to it through the GX300s was revelatory: The congestion was gone, leaving me with a deep, wide soundstage. Legend’s and Pink’s voices were imaged with levels of dimension and texture that I hadn’t heard before.”

“In just 20 minutes of listening, it was quite obvious that the Gold GX300 was no stranger to showcasing details; in fact, the speaker seemed to thrive on it.”

“Monitor Audio’s Gold GX300 offers tremendous value to anyone in the market for a mid sized floorstanding speaker.”

“The more time I spent with the Gold GX300s, the more I came to appreciate their distinctive tonal purity and dynamic range, and their uncanny ability to breathe life into pretty much any recording. I thoroughly enjoyed my time with the Gold GX300. I can’t help but give it my highest recommendation.”


November 2012

Buy 'em, keep 'em, love 'em!

"It delivers, clean, clear and vibrant high-frequencies and tidy, deep and powerful lows. Treble instruments and voices soar… The closer you get to naturally recorded, untreated a capella voices, the more important this becomes; The GX300 sailed through this test as if the designer had been listening to renaissance music when putting the GX series through its paces.”

“The other end is fabulously well-upholstered for so small a speaker, too… a lot of bass and a lot going on in the bass… Here, the GX300 gets the balance perfectly right — you could spend 10x as much and not get the same result.”

“The vocal articulation is excellent, and the midrange clear and true.”

“Ultimately, the Monitor Audio sound is one that is big and impressive. It casts a wide soundstage, with full-sized, solid instruments in their own sense of space within that soundstage. It goes loud too. All this, combined with the extension of top and bottom, gives you a sense of immediate impressiveness… few speakers at this price can deliver something this impressive sounding, and even fewer will deliver that while making sure you keep a satisfied smile firmly in place.”

“I can’t help but think Wilson Audio here. The GX300 are more than training wheels for a pair of Wilson Sashas, but there is a strong similarity in character. Both create a big sound, with lots of extension at either ends of the scale. Both have plenty of detail delivery and both have that ability to excite and stun in equal measure... Where the Monitor Audios win over the Wilsons is their ease in installation and equipment partnering… and that you can buy a wall of GX300s for the price of a pair of Sashas.”

“The GX300 gives you a lot of what real people want to hear... It just gives you the sound you like in a fuss-free package. What could be better?”


May 2012

HiFi+ GX300 Review

In the current issue of HiFi+ (on sale now) the big brother's of the Gold GX range - the GX300s are under a full detailed 3 page review and we weren't disappointed with the results: 

"These are good, unfussy loudspeakers that don't force the listener into a bout of audiophilia nervosa. Buy 'em, keep 'em, love 'em!" 

"Ultimately the Monitor Audio sound is one that is big and impressive. It casts a wide sounstage, with full-sized, solid instruments in their own sense of space within that soundstage. It goes loud too. All this, combined with the extension of top and bottom, gives you a sense of immediate impressiveness".

Read the full review in April's issue of HiFi+ available now.

Gold GX

November 2011

Setting the Gold Standard

Home Cinema Choice magazine gives their verdict on the Gold GX Series with an all round 5 star approval across the board.

In the latest January 2012 issue of Home Cinema Choice magazine our Gold GX series was reviewed, tried and tested for performance, design and features and then rewarded with a fantastic overall review of 5/5 stars across the categories.

Here's a snippet taken from the full review "Running through Pirates...had me scribbling all sorts of notes ('huge, rich, foundation-shifting bass with power and grip'; 'nil flex on the 15in piston'; 'Exciting, musical and able to create a sense of scale'), but all you need to know is that I loved this system with a passion."

Read the full review

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User reviews

Average user rating

Enrico Pagani Monitor Audio UK


May 2014

This speaker has a big flaw: it sounds so good that invites you to grow more and more volume :-) .
The low frequencies are complete even at low volume and high frequencies are always very refined.
The punch is always present but never dominant, even in large rooms.
Rarely i'm so satisfied with a purchase like for this GX300.

David Porter Monitor Audio UK


January 2014

Over a year has passed since I had a personal visit at my home by Alex Brady to evaluate my system, shortly followed by Joseph Boyd setting up my new GX300 pair for me.

I am really convinced that Monitor Audio demonstrate that they really do care about their end user's satisfaction by these visits to me.

The speakers are exceptional and the second pair of Monitor Audio speakers I have owned, running these alongside some ten year old GS30s which still perform well.

The GX300 pair are driven by four monoblocks which deliver just over a 1000 watts to these beautifully finished items of performance furniture.

Thank you Monitor Audio much appreciated. DP

Juan Quirindongo Monitor Audio UK


November 2012

Owned a 5.1 GX300 set for a year. Outstanding clarity and gorgeous appearance. Phenomenal sound. GXFX speakers are dropping jaw. Extremely happy with my selection.

Michael Carlsson Monitor Audio UK


October 2012

I have Gx 300 and pioneer lx85 amp and chord signature speaker cables and the sound is nice with my system.

Gordon Thomson Monitor Audio UK


February 2012

I purchased my GX300's in piano ebony and all i can say is that they look gorgeous and sound even better, sparkling top end, clear detailed mid range and deep articulate bass, stunning speakers!

philip dennis Monitor Audio UK


September 2011

Owned a pair of these for approx 1 month so still not fully run in. Phenomenal sound& beautiful build quality; image like nothing else on this side of £10.000+ tight bass & stunning mid range gx 300s are a bargain at this price almost as good as platinums but without the ruthless exposure of front end flaws !

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