• Floorstanders Floorstanders
  • 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


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 (HxWxD)

1060 x 210 x 330 mm
(413/4 x 81/4 x 13 inch)


27.2 Kg (59.9 lbs)

Professional reviews



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.

Home Cinema Choice

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

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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De-Tox CD

Custom-developed for Monitor Audio and utilising advanced simulation technology, the new De-Tox CD will help you to run-in your speakers in less time and more comprehensively than is possible with music or other burn-in signals.