The Walnut Dipoles

[perrymarshall]

Excellent work, thank you for the report! Yes, the LC bass boost circuit makes a big difference. +5 dB at 45Hz.

 

[tigeranand]

Hello Friends need help I have the SB 15OB350 not the eminence woofer also I dont know the corossover how to make. If I use the SB woofer what change in crossover is needed. I really want to make this happen. Also if I use the crossover that Perry published with my SB what issues will I have

regards
anand

 

[perrymarshall]

I suggest you model this on VituixCad. The crossover especially for the woofer will be very different.

 

[pefpef]

I want also to make a kind of walnut dipôles.
Plan is to use a 15ob350 a tw29txnb-8 either in the SB acoustic waveguide or a "somasonus" and a 8nmb420 as midi.
@perrymarshall do you think a single 15ob350 is enaught in a 70sqm living room to have a -3db at 30 ?

 

[perrymarshall]

I don’t think you need a midrange. If you do use a midrange, you should use a larger woofer, or two 15s.

The 15 OB 350 will go down to 40 Hz in a room that big, but not 30.

The SB29 with a wave guide, yes.