My goals are are a smaller/slimmer design for better wife approval(lets say) and putting as much LF in a single cabinet as possible.
Can you put 2 woofers crossed at say 50-70hz,ish on the side wired in a push/pull design to keep box size down yet give good bass for 2ch.I have searched and not seen any info on this type.I know all about clamshell and front to back etc. but not sure if this would work.
I can get about 9ft3 but need 3ft3 for midbass(2) and bracing,leaving around 6ft3.Most drivers will require 6ft3 for a single box for a Aura NS-18 so I was curious if this may work
Just a thought?
Can you put 2 woofers crossed at say 50-70hz,ish on the side wired in a push/pull design to keep box size down yet give good bass for 2ch.I have searched and not seen any info on this type.I know all about clamshell and front to back etc. but not sure if this would work.
I can get about 9ft3 but need 3ft3 for midbass(2) and bracing,leaving around 6ft3.Most drivers will require 6ft3 for a single box for a Aura NS-18 so I was curious if this may work
Just a thought?
Hi Inductor
That is really a minimum,easy box.I am much more complicated(LOL).I was just curious if this design would work.
That is really a minimum,easy box.I am much more complicated(LOL).I was just curious if this design would work.
Ok, that's not a smaller box, 2 drivers -> double internal volume, unless something else that I don't get...
If size it's a limiting factor (not your wife 😀) you can use a better adapted woofer for small internal volumes and use one or two ""one above the other"" as you stated, that's not a problem.
Again size it's not a problem, and isobarics with woofers pairs can be smaller in size and more expensive.
You need a high WAF...
You need a good driver. 😀
Again size it's not a problem, and isobarics with woofers pairs can be smaller in size and more expensive.
Agreed.....smaller box req either a driver with higher motor strength or Isobaric. What you propose...push pull, while reducing distortion, results in a need for a larger box. There's often confusion on the topic....isobaric is not push/pull as the air space between the drivers needs to be physically seperate from the enclosure volume.
I have 4 NS-18 and I am putting one side firing in my main cabinet and the other pair in separete floaters.I am keeping the main cabinet at 12.75 wide and it will also house 2-10" Volt and a ATC mid and a SS 7100.
Let's see if I understand, you are using two Aurasound NS18 drivers (1 in the left speaker + 1 in the right speaker) in your set-up, side firing, plus a sub with two Aurasound NS18 woofers. Am I right?
Or the pair of subs separated from each other?! (1 sub/Aurasound NS18 + 1 sub/Aurasound NS18)
If true then your mains can be small(er) in size. As small as not to affect the quality of sound. I'm not addressing here active crossovers, amps, control and such...
LineSource posted this on the Mark Levinson/Beyma 18p80nd in his Daniel Hertz M1 $100K speaker, not long ago.
Beyma 12p80nd + TPL-150 - diyAudio
I think WAF in this case is high, just spell the name... or the money. 😀 😀
Or the pair of subs separated from each other?! (1 sub/Aurasound NS18 + 1 sub/Aurasound NS18)
If true then your mains can be small(er) in size. As small as not to affect the quality of sound. I'm not addressing here active crossovers, amps, control and such...
LineSource posted this on the Mark Levinson/Beyma 18p80nd in his Daniel Hertz M1 $100K speaker, not long ago.
Beyma 12p80nd + TPL-150 - diyAudio
I think WAF in this case is high, just spell the name... or the money. 😀 😀
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4.5ft³ = 127.43L
AURA SOUND NS18-992-4A, VB = 127.0 L, QTC = 0.928, F3=31.8 Hz (free field).
Note. Not advisable, the driver presents a peak of ~2dB@50/60Hz, unless you know what you are doing. It requires filtering and controlling amplification and frequencies. Might become a problem to match with the lower frequency subs in a bigger box unless they are independently controlled.
AURA SOUND NS18-992-4A, VB = 127.0 L, QTC = 0.928, F3=31.8 Hz (free field).
Note. Not advisable, the driver presents a peak of ~2dB@50/60Hz, unless you know what you are doing. It requires filtering and controlling amplification and frequencies. Might become a problem to match with the lower frequency subs in a bigger box unless they are independently controlled.
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As was said before by me and more forum members, if you want to design a speaker to start with int. volume then why using a bad driver for small enclosures like the Aurasound NS18-992-4A 18" that costs $905.00 ???????????
It will be in 6ft3 by the time I lose my internal midbass box. and I will make 2 other cabs at 6ft3 also for the other 2....so yes on 1 sidefire/one cab per side of the room......
speakers were 2 for the price of one is why I have 4 and I had someone to pick them up so no shipping.
speakers were 2 for the price of one is why I have 4 and I had someone to pick them up so no shipping.
Not in this case. 😡
6ft³ = 169.90L
12.75w x 58h x 19.75d internal
(12.75in = 32.385cm, 58in = 147.32cm, 19.75in = 50.165cm)
(8.452 cubic feet = 239.34 liters TOTAL)
Aurasound NS18-992-4A 18" Subwoofer
Frame: 477mm (47.7cm = 18 25⁄32in)
Cut out: 426.4mm (42.64cm = 16 25⁄32in)
Depth: 287.1mm (28.71cm = 11 19⁄64in)
1. AURA SOUND NS18-992-4A, VB = 305.5 L, QTC = 0.707 (acceptable or ideal)
(305.5L = 10.789ft³)
2. AURA SOUND NS18-992-4A, VB = 197.6 L, QTC = 0.800 (+/-, not ideal)
(197.6L = 6.9782ft³)
3. AURA SOUND NS18-992-4A, VB = 169.9 L, QTC = 0.839 (bad)
Hope this helps, now is up to you...
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well I will vent it for 23hz and give them a 180lb Krell fpb 600 and see what happens
Thanks inductor.
Thanks inductor.
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