Show us your DIY coaxial drive units

[wolf_teeth]

My folks have that very same model turntable. Nice!

 

[IG81]

Criteria is quarter-wavelength at teh XO frequency, not sure where the angle citeria comes from. for 400 Hz, about 8.5”/21.5cm

dave

Exactly what I meant: 90deg as in 1/4 of the full 360deg cycle for the xover frequency.

 

[androxylo]

Just use gravity.