8” woofer for 45L sealed box. 3way designed crossed at app. 800hz.

You might find this interesting, a modest cost 3-way I built last year. It is a floor standing speaker, but the cabinet could be redesigned as a stand-mount, with a shorter but deeper cabinet. The PR could go on the back panel, or it could be eliminated and replaced with a vent... Or it could be a sealed box as you originally mentioned.

If I were going to make a second pair of these, I would use a different midrange driver. I would use the SB15NBAC30-8 instead of the CRC version. The midrange crossover would need to be re-worked a bit.

When combined with DSP to extend the bass, the sealed box is my favorite woofer loading. But if bass EQ is not going to be used, sealed box woofer loading has some disadvantages.

j.
 
I'd go with the SB23NRXS45-8.

It has an excellent motor and sounds really tight / accurate in a vented box. It will do mid-30s F3 in 45 ltrs and copes with a decent amount of power.
 

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