RCF pro subwoofer - what kind of enclosure ?
Hi, i have my old ( but new :) ) RCF L15P200AK ( im italiannnn ).
Is a 4ohm 15" pro woofer, whit 800 wrms ( but in my car was powered whit 1000 w rms reflex enclosure without problem ).
Now i want to make an enclosure for use in pubs or indoor ( i've a metal band ) or for home cinema use ( lol :D ).
im thinking about a 4th or 6th order box, but qts is 0.35: low for 4th and high for 6th. i havent try 4th or 6th order box on my project, but i must optimize linearity and efficiency..
Some ideas and knowledge about?
Sorry for my bad english
Resonance frequency: 38 Hz
DC resistance: 5.9Ω
Mechanical factor: 6.8
Electrical factor: 0.38
Total factor: 0.35
BL Factor: 21.2 T · m
Effective Moving Mass: 121 g
Equivalent Cas air load: 139 liters
Effettive piston area: 0.083 m²
Max. linear excursion (mathematical): 9.8 mm
Voice - coil inductance @ 1kHz: 2.2 mH
Half-space efficiency: 1.93%
This driver of yours is IMO very good for both home or PA use as using a very favorable compression ratio:
This property makes it possible to lightly damp ~half of the airways for a TH that would move possible SQ into the HiFI area realm without loosing low end efficiency and sounding like an T_TQWT.
Thank u so much... i will go with horn enclosure... Band pass is not good for eff?
Ive seen "cubo15" project.. is a small enclosure..
Have you read this thread
Your RCF driver is slightly less efficient when put into the sim but still looks OK.
The RCF L15P200AK will work in Cubo 15 and take 800 - 1000 Wrms mechanically (with a ~40 Hz high pass). Cubo 15 will work well with PA drivers intended for reflex use but you will have to find something else for HT use ;)
Why? Linearity problems?
That driver would make a great home theater subwoofer in a tapped horn design.
Here is a design for a similar Electro-voice driver, it should be able to hit 130dB in the corner of your room, and is useable to 20hz.
I meant Cubo 15 isn't suited for HT (it's meant for 40 Hz and up), however the driver is. I'll second djk, that the driver itself in a tapped horn could be used as a neet 20 -25 Hz and up sub (even in 2,0 pi).
Best regards Johan
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