Do we really need subs tuned to 30hz??
03-03-2009, 11:42 AM
#21
Pro sound cabinets also effectively use the cabinet itself as a means to create as much SPL as possible with the limited excursion and frequency response of the woofer. Horn loaded cabinets are very efficient.
03-03-2009, 11:53 AM
#22
my current enclosure is tuned at 28hz...sounds awsome with
basically anything I play and I can knock tools off the garage
shelves at 10hz with the car parked 20 feet away from the house
I wouldn't have it any other way
basically anything I play and I can knock tools off the garage
shelves at 10hz with the car parked 20 feet away from the house
I wouldn't have it any other way
03-03-2009, 08:47 PM
#23
500 Watt CAFz'r
Join Date: Jan 2008
Posts: 537
a 20hz note can be heard just a few feet away. The problem is you only be hearing that note at a greatly reduced volume. You ca hear the note at full potantial(volume,dB's) at it's 1/4 wave and 3/4 wave distances(in an open space environtment without reflections)
The note is still there to be heard, but not at it's pressure peak where it would be it's loudest.
The note is still there to be heard, but not at it's pressure peak where it would be it's loudest.
.
03-04-2009, 04:57 PM
#24
500 Watt CAFz'r
Join Date: Dec 2000
Posts: 952
Consider that a Lowest "C" on piano is a 32.7 Hz and 32.7Hz is 34.6inches in length and lowest "audible" C is 16.4Hz at 69Ft.
In the car we are getting a fraction of that wavelength being within 5ft of the cone. So the bass may not sound as good in the car as it does to passers by.
Considering that if my x/o is set at 80Hz, -3dB/Oct down will be 40Hz,(to gain back +3Db, double power to the subs) a 10Hz diff from 30Hz will be inaudible IMO, so no need to tune subs to 30Hz.
Last edited by Eli47; 03-04-2009 at 05:03 PM.
03-04-2009, 05:42 PM
#25
Hmmm Parked 20 feet away and knocking tools off the garage shelves..,
Consider that a Lowest "C" on piano is a 32.7 Hz and 32.7Hz is 34.6inches in length and lowest "audible" C is 16.4Hz at 69Ft.
In the car we are getting a fraction of that wavelength being within 5ft of the cone. So the bass may not sound as good in the car as it does to passers by.
Considering that if my x/o is set at 80Hz, -3dB/Oct down will be 40Hz,(to gain back +3Db, double power to the subs) a 10Hz diff from 30Hz will be inaudible IMO, so no need to tune subs to 30Hz.
Consider that a Lowest "C" on piano is a 32.7 Hz and 32.7Hz is 34.6inches in length and lowest "audible" C is 16.4Hz at 69Ft.
In the car we are getting a fraction of that wavelength being within 5ft of the cone. So the bass may not sound as good in the car as it does to passers by.
Considering that if my x/o is set at 80Hz, -3dB/Oct down will be 40Hz,(to gain back +3Db, double power to the subs) a 10Hz diff from 30Hz will be inaudible IMO, so no need to tune subs to 30Hz.
I didn't have a Piano in my car....
just four 10" subs and a little amp
03-04-2009, 08:54 PM
#26
500 Watt CAFz'r
Join Date: Jan 2008
Posts: 537
Hmmm Parked 20 feet away and knocking tools off the garage shelves..,
Consider that a Lowest "C" on piano is a 32.7 Hz and 32.7Hz is 34.6inches in length and lowest "audible" C is 16.4Hz at 69Ft.
In the car we are getting a fraction of that wavelength being within 5ft of the cone. So the bass may not sound as good in the car as it does to passers by.
Considering that if my x/o is set at 80Hz, -3dB/Oct down will be 40Hz,(to gain back +3Db, double power to the subs) a 10Hz diff from 30Hz will be inaudible IMO, so no need to tune subs to 30Hz.
Consider that a Lowest "C" on piano is a 32.7 Hz and 32.7Hz is 34.6inches in length and lowest "audible" C is 16.4Hz at 69Ft.
In the car we are getting a fraction of that wavelength being within 5ft of the cone. So the bass may not sound as good in the car as it does to passers by.
Considering that if my x/o is set at 80Hz, -3dB/Oct down will be 40Hz,(to gain back +3Db, double power to the subs) a 10Hz diff from 30Hz will be inaudible IMO, so no need to tune subs to 30Hz.
In a PA application much of the energy radiates away from the audience making it largely a waste of power. In my opinion it makes good sense to tune low in a car because the cabin gain will make sub-30Hz bass easily obtainable. We are lucky to be in a pressure vessel of sorts.
03-06-2009, 10:05 AM
#29
i had an addon port on my current box. 28hz and 37hz . 28hz was nice and low. feel the bass and feel the wind. loved it and it was a nice flat responce to my music. BUT i didnt know how to tune properly last summer and i threw away the end ports lmao. now that i know how to tune properly im stuck with 37hz. o well next box next sub will be tuned at around 30hz or so ( i listen to lots of rap and contry lol they both go low but my rap digs deep )
i love low tuning. 37hz is allright but it just doesnt do the notes i want and im missing out. BUT its loud tho!!
30HZ all the way
i love low tuning. 37hz is allright but it just doesnt do the notes i want and im missing out. BUT its loud tho!!
30HZ all the way
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