Frugel-Horn Mk3 - DIY Flat-pack Speaker Kit


Introduction to the Frugel-Horn Mk3 - DIY Flat-pack Loudspeaker Kit

It is surprisingly easy to build a high performance speaker for considerably less than purchasing a commercial product. All it takes is a few inexpensive tools, the right plans, a little time and patience. Even for those with little to no construction aptitude. So what to do if you're like me and are able to screw up the most basic home improvement projects, yet still desire to build your own speakers? Answer: Flat-Pack speaker kits.

Enter the Frugel-Horn Mk3 loudspeaker flat-pack offered by Victoria BC's Planet-10 HiFi. This is a 'most everything you'll need' kit that comes with everything but the glue and clamps. It is not only dead-easy to build it also looks great. And the sound, surprisingly impressive, with a potential frequency response of 40 Hz to 30 kHz from a 4” driver (actual response varies with driver choice and corner placement).


  • Design: Horn-loaded Speaker
  • Driver: 7" Mark Audio Alpair 7
  • Construction Material: 15mm - 18mm Baltic Birch
  • Revc: 3.600 Ohms
  • Fo: 69 Hz
  • Sd: 50.24 cm²
  • Vas: 3.48 Ltr
  • Cms: 913.149u M/N
  • Mmd: 5.456 g
  • Mms: 5.660 g
  • BL: 3.342 T•M
  • Qms: 2.015
  • Qes: 0.803
  • Qts: 0.574
  • Levc: 0.0188 mH
  • No: 0.135%
  • SPLo: 84.5 dB
  • Xmax: 4.4-mm 1 way
  • Pwr: 20 Watts Nominal
  • Dimensions: 35.2" H x 6.8" W x 17.8" D
  • Weight: 
  • MSRP $550 (Including Cost of Driver that I chose; See Page 2)
  • Frugel-Horn
  • SECRETS Tags: DIY, Speakers