British Design | Performance Loudspeakers | Experts Since 1972
The largest speaker in the range, providing the biggest sound. The Monitor Audio Cinergy 300 uses our latest mid-range driver technology for the purest possible audio.
Features at a glance:
Unique isolation options | Rotatable mid-tweeter array | Removable port bungs I Suited to custom-built mounting behind an acoustically transparent screen | 1 x MPD Transducer | 2 x 8" RDT Driver I 2 x 2.5" C-CAM Driver | Magnetic grilles | THX® Certified

"It is a dynamic, thrilling listen that really gets the adrenaline pumping."
- StereoNET
Whether it’s mounted with the unique isolation options included or even used as a floorstander, with professional installation as part of a Cinergy system, you’ll have world-class cinema sound in your own home. Far superior to your local mainstream cinema, which is normally designed for larger groups to deliver the best median performance for everybody. Cinergy, on the other hand, is a cinema built around you and those closest to you.
Monitor Audio shines a spotlight on smart home technology experts Majik House, focusing on The Annexe, an immersive cinema Cinergy demonstration suite that utilises Monitor Audio's Cinergy speaker system, showing their clients what's achievable in a high-end home cinema.
Due to the confidence we have in the quality, robust design, and sound performance of our architectural speakers, Monitor Audio offers a lifetime warranty across our Cinergy speakers, matching or exceeding market standards.
At Monitor Audio, we strive for audio excellence, and your Trustpilot feedback plays a vital role. Your authentic reviews help others discover our high-fidelity sound and guide us in continually improving our products and services to meet your expectations.
THX® Certified Ultra
3 Way
90 dB
Continuous 109 dB, Peak 122 dB
Continuous 350 W, Peak* 1400 W
4 Ohms
3.8 Ohms
40 - 80 Hz (High Pass)
200 - 1400 W (IA750-2 or IA750-4)
Ported**
38 Hz**
42 Hz
42 Hz
>30 kHz
2 x 8" RDT Driver
2 x 2.5" C-CAM Driver
1 x MPD Transducer
1080 x 300 x 240 mm (421/2 x 1113/16 x 97/16")
1080 x 300 x 253.6 mm (421/2 x 1113/16 x 10")
1132 x 438 x 253.6 mm (449/16 x 171/4 x 10")
40.4 kg (88 lb 14 oz)
* Calculated from a peak voltage, this is not a true power figure but useful for comparisons.
** When used in an In-Wall or On-Wall configuration it is recommended to use the fitted port bungs to control bass output. This will effectively make the product a sealed box.
*** Band limited with Low pass at 200 Hz, should only be used with IA800-2C and the correct speaker profile.
**** Tested with a music like noise signal with distortion and power compression remaining below audible limits.
THX® Certified Loudspeakers.
THX® and the THX® Logo are the property of THX® Ltd., registered in the U.S. and other countries.
Lifetime
Cinergy 300