HT-8 Measurements

Full measurements for the DIY Sound Group HT-8 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 (bottom screws on the waveguide) and scaled 6dB to approximate 2.83v/1M level. The measurements were gated at 14ms and blended to diffraction adjusted nearfield woofer response below 250hz.

Smoothing applied is 1/48th octave.


-Link to the HT-8 polar data exported from VituixCAD-


Other Notes:

Updated graphs for the 2022 crossover revision which was a minor adjustment to correct for a small level disparity noticed on the newer batches of woofers.

On Axis Response

CTA-2034 Style Spin

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HT-8 Harmonic Distortion at 85, 95, 100 and 105dB/1m

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Compression at 85/95/100/105dB normalized against 75dB:

HT-8 Impedance: