dipole baffle size in relation to frequency, rolloff point

[thadman 10+ year member]

so...on a 15" baffle

-9dB @ 300hz (150% more displacement than normal for a given SPL @ 300hz)

-15dB @ 150hz (250% more displacement than normal for a given SPL @ 150hz)

and on a 24" baffle

-5.28 @ 300hz (88% more SPL than normal for a given SPL @ 300hz)

-11.31hz @ 150hz (189% more SPL than normal for a given SPL @ 150hz)

a Dayton RS225 on a 15" should be good if crossed at 300hz because it will already be +12dB vs being crossed at 75hz (maximum excursion would be reached 2 octaves higher) and add-in the open-baffle roll-off at -9dB so it should be 3dB+ across the entire band

right?

 

[thadman 10+ year member]

Seas 27TDFC/tower @ 20,000 - 1250hz

Dayton RS225/tower @ 1250 - 300hz

(2) Mach 5 18"/tower @ 37.5 - 300hz

looking good? those would be some venerable OBs