Full measurements of the HT-12+ Upgrade crossover for the DIY Sound Group HT-12 speaker kit.
Link to the forum thread for this design
The following measurements were performed on my 10' tall outdoor turntable, measurements taken at 2.83v / 2M just below the tweeter axis and scaled 6dB for approximate 2.83v/1M level.
Measurements gated at 14ms and blended to nearfield woofer response below 200hz. Smoothing applied is 1/48th octave.
On Axis Response
CTA-2034 Style Spin
Horizontal Off Axis
Horizontal Off Axis - Normalized
Horizontal Polar - Normalized
Vertical Above Axis
Vertical Above Axis - Normalized
Vertical Below Axis
Vertical Below Axis - Normalized
Vertical Polar - Normalized
HT-12+ Harmonic Distortion - 80, 90 and 100dB/1m