Anarchies

These compact 3 way speakers with integrated stands are my most ambitious design to date. The design is intended to cover the following requirements.

  • True full range with bass extending to low 30Hz
  • Minimal distortion across critical midrange and high frequencies
  • Focus on smooth dispersion and power response in room
  • Unique aesthetics and a compact design that can be transported easily

Speakers are always a collection of compromises, so the following limitations have to be considered to achieve the above requirements.

  • Maximum SPL will be limited by the small drivers to meet the compact design
  • Budget will dictate the minimum distortion by avoiding boutique drivers
  • Tooling capabilities for the build will limit some of the more exotic edge treatments that could maximize the off axis capabilities, not to mention the more fancy aesthetic finishes

A higher quality gloss finish on the cabinets is in planning for some time later, but for now these speakers were completed in early 2023 with a black textured finish on the cabinet complementing the red oak baffles.

The design and build of these speakers has been extensively documented on this site.

Specifications and Performance

  • 6 Ohm Nominal Impedance
  • 60 WRMS continuous power handling, ~100W power amplifier recommended
  • On axis frequency response @1M 35-20kHz +-3dB
  • Sensitivity approximately 85dB @ 2.83V (calibrated measurement unavailable)
  • THD <0.8% full spectrum at ~90dB in listening position (calibrated measurement unavailable)

Full frequency response as measured, quasi-anechoic with near field responses merged at 400Hz.

Directivity heat map, left and right speaker comparison using +-90 degree actual measurements. Gated measurement data valid above 400Hz.

Crossover Schematic