Detailed information on Helix-hmf160b

The 3D-Spiral Horn Speaker Building

Detailed information on Helix-HMF160b

Added on 31. Dec. 2008

	The fins are shorter and the gaps of flare neck are wider than HMF160a.
	Trial assembly

Comparison of Helix-HMF160b with HMF160a

Added on 31. Dec. 2008
Resolution 21.53Hz ; Span 22050Hz
Magnitude -140 to 0 dBFS (FS : full scale)

measured with DCU-F101W

listening position

stereo,2m,center

mouth output

mono
center
(border of the mouth)

High resolution measurements

Resolution 5.383Hz ; Span 5512Hz
Magnitude -140.0 to 0.0 dBFS

	listening position stereo,2m,center
	mouth output mono center (border of the mouth)

Impedance measurements

Vertical axis has an arbitrary linear scale and is proportional to the impedance of the driver.
Resolution 5.383Hz