18Sound HD1030 CD lowest cross point.

Somebody try diferent frequency crossovers points for the 18Sound HD1030 ?
Using active crossover 24dB/oct could be possible 1.8kz ?

I would also use the speakers with a 15-watt tube amp.

Throat Diameter 1inch
Nominal Impedance 8 Ω
minimal impedance 6.5 Ω
Power 60 W
Sensitivity 106.0 dB
Frequency Range Recommended - 1.8kz - 20.0 kz
Fs 800hz
Titanium Voice Coil Diameter 34 mm
1.5 T Ferrite
 

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Hi,
Usually the manufacturer's recommended freq range or recommended xover freq is given with 2pole filters ( 12db/octave) and for PA application.
As a rule of thumb, a 24db/octave filter should enable a 0.8x recommended fc so it should be ok at 1,45 khz and if planed for home use you could even lower a bit.
Of course you'll have to verify distortion or other nastys don't get in the way...