This high-performance, medium-sized Tier 3 in-wall loudspeaker is a three-way model featuring two RDT III bass drivers, a C-CAM mid-range driver and MPD II transducer. It has a cut-out dimension of 527 x 198 mm and revolutionary patented Quik-Link speaker cable connector and Tri-Grip II for quick, simple, reliable and strong installation and fitting.

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This high-performance, large Tier 3 in-wall loudspeaker is designed to deliver pristine, engaging acoustics where pristine sound quality is desired. It is a three-way model based on the Platinum Series 3G, and features the very latest acoustic technologies from Monitor Audio. This includes an MPD II high-frequency transducer, developed for the THX Certified Ultra Cinergy range. The precision specification of the Micro Pleated Diaphragm technology is designed to produce accurate, lifelike sound without any distortion. This is coupled with a C-CAM midrange driver and two RDT III bass drivers.

This combination ensures levels of acoustic transparency and detail found in Monitor Audio’s premium loudspeaker ranges, where much of his acoustic technology was developed. This really is the last word in installed performance.

It has a cut out dimension of 527 x 198 mm and uses the patented Quik-Link speaker cable connecter, which revolutionises the ease and speed of speaker installation. Tri-Grip has also been evolved for simple, reliable and strong fitment.


This product is now available to use with home theatre design software, The Cinema Designer. Read more.

Key Features

  • Ideal for installations where high-performance acoustics are desired
  • Three-way design
  • 1 x MPD II transducer for breathtakingly precise high-frequency performance
  • 1 x 3" (76 mm) C-CAM midrange driver
  • 2 x 5" (127 mm) RDT III bass drivers for full bass
  • Patented Quik-Link speaker cable connector for quicker installation (UK patent application no. 2216966.8)
  • Tri-Grip II for easy and secure fitment
System Format




Frequency Response, Installed (-6dB)

45 Hz – 60 kHz​

Nominal Impedance

6 ohm

Minimum Impedance (20Hz to 20kHz)

4.8 Ohm @ 150 Hz

Sensitivity (2.83Vrms@1m, Installed)

88 dB

Maximum Peak SPL* (single speaker @ 1m Z-Weighted)

122 dB

Continuous Power Handling (RMS into Nominal Impedance, Pink Noise with 6dB Crest Factor)

150 W

Recommended Amplifier Power (RMS into 8 OHM, Music Signal)

60 – 225 W

Drive Unit Complement

2 x 5" (127 mm) RDT III bass driver 
1 x 3" (76 mm) C-CAM midrange driver
1 x MPD II transducer

Crossover Frequency

LF/HF: 650 kHz
MF/HF: 3.5 kHz

Mounting Depth

85 mm (33/8")

Cutout L x W

527 x 198 mm (203/4 x 713/16")

External Dimensions (Including Grille (H x W x D))

560 x 231 x 90 mm (221/16 x 91/8 x 39/16")

Weight (each)

4.7 kg (10 lb 6 oz)

Pre-Construction Bracket


Cabinet Finish

Matt black & Orange & Green

Sold As

Single Unit

Corner Switch


MF Switch

- /0/ +

HF Switch

- /0/ +

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