the box 15´´ VS mccaule b1840

[hents503]

Hy, i made ~240liter vented box .
Now i thing witch driver i use?
2x the box 15-300 in isobaric face to face or 1x mccauley b1840?
I made some simulations in bass box pro6 mccauley got better spl but the box got better spl in normalized amplitude.

 

[hents503]

Stil i dond´t know witch driver.
The normalised amplitude make my think of.But custom amplitude make my thinking that mccauley is beter higer spl..
I dont want cut a biger hole in my box when 18´´ driver isnt beter.
Henri.

 

[Rademakers]

What is the application? The 15" have a 52 Hz Fs, which seems a bit high for that tuning if high power is needed.

Best regards Johan

 

[hents503]

Sometime PA sub and ´´HT/music´´ in my room.
~35Hz is first tuning, later if i need i change a vent tuning a higer 40-50Hz.
Yeah 52HZ but if i use a two driver then i got bit smaler Fs.But mccauley got fs 28Hz but it need a cuting ~40Hz if i want use a 400w amp.

Henri.

 

[Rademakers]

In my view: The McCauley tuned to 30 Hz for HT/music. The excursion in WinISD is not per definition the same as the actual excursion, usually the latter is lower.
Also a 40 Hz high pass is sufficient for many music styles. When you want 30 Hz output at high levels, you need multiple units or you've got the wrong tool (driver) for the job.

Best regards Johan