28hz?

[dvldogyut 10+ year member]

It's pretty obvious from the responses who listens for the musical aspects and who listens for output. It's also obvious who knows how to tune an enclosure based upon more than just regurgitated info. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
Specs of the driver must be known, the transfer function of the vehicle must be known, and your musical tastes must be known. You can't just say to someone that 28Hz is too low and that it will result in a lack of midbass or otherwise unacceptable levels of performance. Far too many variables.

OP, if you like metal and hip hop, there's a pretty good chance you would enjoy a sealed setup. It would probably offer the balance of performance that you're looking for. If that sounds like something that would work for you, try to find a relatively efficient driver with low moving mass and low inductance with a Qts that would be suitable for sealed enclosures, about .5 and higher. The low mass and low inductance will lend itself to those fast, tight drum sounds and will reveal rich harmonic structures in the bass lines. If one driver sealed isn't enough output, maybe go with a pair.

Vented enclosures are resonant by nature and resonance stores energy, which corresponds with a high group delay. Group delay is responsible for robbing you of fast transients. Tuning low does help quite a bit to improve overall transient performance and there are many vented alignments with outstanding group delay and excellent transient response but none come close the transient response offered by a sealed enclosure.

Or could I do something like some good midbass drivers? Or componets? Would they help much with the higher bass?

 

[gtbike900 10+ year member]

yes they can my midbass mid high highs setup sounds great with no subs and has great punch to it

 

[hornedfrog1985 5,000+ posts]

Sealed can get just as low, and probably lower than ported enclosures. The thing is you won't have that peak in DB at the tuning area (because there is none), and it will have less output. Maybe look into 4th order bandpass. Me personally, I would never tune higher than like 33 hz, but I listen to a wide variety of music.

 

[dvldogyut 10+ year member]

Sealed can get just as low, and probably lower than ported enclosures. The thing is you won't have that peak in DB at the tuning area (because there is none), and it will have less output. Maybe look into 4th order bandpass. Me personally, I would never tune higher than like 33 hz, but I listen to a wide variety of music.

Really? Lower? And what would a 4th order do for me? Will it give me lows and highs?

 

[ciaonzo 5,000+ posts]

This is by far the best answer I have heard, but my big worry is that sealed won't get as low as I like, or am I wrong? And I have 4 of these incriminator audio 187 series 12's by the way.

Yeah, if you take a driver and put it in a sealed and vented enclosure of the same volume (just for simplicity's sake), the sealed will reach much lower in frequency but the vented will have much more output down to the tuning frequency. So while the sealed is much less efficient, it will keep playing to a lower frequency as long as the driver has the excursion and power handling to back it up. The vented is much more efficient because you're using the main resonance in the pass band but once you play a frequency below tuning you get a direct cancellation between the energy coming off the front and rear of the cone. This is the reason for the steep roll-off.

It's not a hard and fast rule but sealed will almost always go lower than vented in most practical applications. There are exceptions, like everything else.

 

[dvldogyut 10+ year member]

Yeah, if you take a driver and put it in a sealed and vented enclosure of the same volume (just for simplicity's sake), the sealed will reach much lower in frequency but the vented will have much more output down to the tuning frequency. So while the sealed is much less efficient, it will keep playing to a lower frequency as long as the driver has the excursion and power handling to back it up. The vented is much more efficient because you're using the main resonance in the pass band but once you play a frequency below tuning you get a direct cancellation between the energy coming off the front and rear of the cone. This is the reason for the steep roll-off.
It's not a hard and fast rule but sealed will almost always go lower than vented in most practical applications. There are exceptions, like everything else.

Cool, I may just go sealed then!

 

[dman4486 5,000+ posts]

Cool, I may just go sealed then!

I tried sealed and then changed to ported. My enclosure is oversized and tuned to 24hz. and my lows are much better in the ported enclosure.

I think it all just depends on the driver you choose and what sound you like. I have flat response (not taking into account vehicle gains) and love it. People that ***** about low tuning not being able to pick up the mids are nuts and don't know what mid-range speakers are for...

 

[ciaonzo 5,000+ posts]

I tried sealed and then changed to ported. My enclosure is oversized and tuned to 24hz. and my lows are much better in the ported enclosure.
I think it all just depends on the driver you choose and what sound you like. I have flat response (not taking into account vehicle gains) and love it. People that ***** about low tuning not being able to pick up the mids are nuts and don't know what mid-range speakers are for...

Lost of truth in this post. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

This is the type of exception I was alluding to. I also tune that way. Very low, often around 22Hz to 26Hz, depending on the driver and the application.

 

[gtbike900 10+ year member]

i thought i was all alone tuning to 26.5

 

[azimuth 5,000+ posts]

i'm tuning 8's at 30.........anticipating mixed results.

 

[ciaonzo 5,000+ posts]

i'm tuning 8's at 30.........anticipating mixed results.

That's right, I'd nearly forgotten. Which ones did you end up with again, the Daytons?

 

[azimuth 5,000+ posts]

That's right, I'd nearly forgotten. Which ones did you end up with again, the Daytons?

the tang band aluminums. they aren't here yet

 

[justin smith 10+ year member]

i thought i was all alone tuning to 26.5

im tuned right around 26hz also:crazy:

 

[mobeious 10+ year member]

i want good sound quality at a large range of freqs, i love slamming lows too, im not looking to put up any numbers.

thats exactly what u put in the PM and exactly what i gave you

 

[PV Audio 5,000+ posts]

It's pretty obvious from the responses who listens for the musical aspects and who listens for output. It's also obvious who knows how to tune an enclosure based upon more than just regurgitated info. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
Specs of the driver must be known, the transfer function of the vehicle must be known, and your musical tastes must be known. You can't just say to someone that 28Hz is too low and that it will result in a lack of midbass or otherwise unacceptable levels of performance. Far too many variables.

OP, if you like metal and hip hop, there's a pretty good chance you would enjoy a sealed setup. It would probably offer the balance of performance that you're looking for. If that sounds like something that would work for you, try to find a relatively efficient driver with low moving mass and low inductance with a Qts that would be suitable for sealed enclosures, about .5 and higher. The low mass and low inductance will lend itself to those fast, tight drum sounds and will reveal rich harmonic structures in the bass lines. If one driver sealed isn't enough output, maybe go with a pair.

Vented enclosures are resonant by nature and resonance stores energy, which corresponds with a high group delay. Group delay is responsible for robbing you of fast transients. Tuning low does help quite a bit to improve overall transient performance and there are many vented alignments with outstanding group delay and excellent transient response but none come close the transient response offered by a sealed enclosure.

//content.invisioncic.com/y282845/emoticons/mad.gif.c18f003ab0ef8a0d9c27ca78d77a6392.gif Response stealer! //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif