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Monitor Audio Radius 45 Bookshelf Speakers (Pair)

  • Sale
  • $ 475

Free standard shipping on all orders within the continental US.

For ultra-discreet sound all around the home, or partnered with the Radius 380 sub for explosive stereo, the miraculously small Radius 45 houses a 3" MMP II mid-bass driver and rear-firing 3/4" C-CAM tweeter, and has no right to sound as good as it does.


  • 3" MMP II Driver. All drivers are dedicated and model specific, with each model in the Radius series being designed and voiced individually.
  • 3/4" Gold C-CAM tweeter, rear-firing to enhance sound dispersion characteristics
  • Single through-bolt driver fixing. Provides mechanical de-coupling properties resulting in enhanced mid-band clarity and resolution. Through-bolts also act as rigid cross bracing to give a very solid non-resonant cabinet.
  • Single point ¼" x 20TPI wall fixing. Use the optional Monitor Audio speaker mount or any standard wall bracket
  • Optional floor-stand with internal (pre-wired) cable management system


  • Frequency Response:120 Hz — 20 kHz
  • Sensitivity (1W@1M):87 dB
  • Nominal Impedance:8 ohms
  • Power Handling (RMS):25 W
  • System Power Handling (RMS):50 W
  • Recommended Amplifier Requirements:15 — 50 W
  • Maximum SPL:101 dBa
  • Bass Alignment:Sealed Cabinet
  • Drive Unit Complement
    • 1 x 3" (75 mm) MMP II cone bass/mid-range Driver
    • 1 x 3/4" (20 mm) C-CAM Gold Dome tweeter
  • Cabinet Dimensions (H x W x D): 100 x 100 x 100 mm (315/16 x 315/16 x 315/16")
  • Cabinet Dimensions (Including Grille and Terminals (H x W x D)): 100 x 100 x 124 mm (315/16 x 315/16 x 47/8")
  • Cabinet Dimensions (Including Grille and Bracket (H x W x D)): 100 x 100 x 162 mm (315/16 x 315/16 x 63/8")
  • Pre-Construction Bracket: Optional - Monitor Audio Speaker Mount (MASM)
  • Weight: 1 kg (2 lb 4 oz)

WARNING: California Residents - Proposition 65. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to



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