Epik Conquest 10Hz, 104dB, 2 meters, In-room

[AcuDefTechGuy]

According to Tom Nousaine, the Epik Conquest is capable of producing In-Room Bass down to 10Hz @ 104dB from 2 meters w/ less than 4% distortion.

How does this compare to DIY 18" subwoofers?

 

[Matt34]

According to Tom Nousaine, the Epik Conquest is capable of producing In-Room Bass down to 10Hz @ 104dB from 2 meters w/ less than 4% distortion.

How does this compare to DIY 18" subwoofers?

Wow, nice!

Can you link his review here?

 

[alexsound]

According to Tom Nousaine, the Epik Conquest is capable of producing In-Room Bass down to 10Hz @ 104dB from 2 meters w/ less than 4% distortion.

How does this compare to DIY 18" subwoofers?

Other than testing equipment, are there any playback mediums out there that will pass a 10hz signal ? I know standard CD won't, but not sure if
DVD audio or SACD will. Anybody know ?

 

[mike c]

Other than testing equipment, are there any playback mediums out there that will pass a 10hz signal ? I know standard CD won't, but not sure if
DVD audio or SACD will. Anybody know ?

i believe war of the worlds and black hawk down both have 10hz content.

so to answer your question, movies make use of frequencies that low.

 

[avaserfi]

How does this compare to DIY 18" subwoofers?

This link shows that the LMS-Ultra in the proper cabinet will still outperform the Epik. Remember these tests were done in anechoic conditions so in room response would be higher. The LMS will probably do at least 115dB in room at 10Hz, but probably more.

And then the big boy, the LMS-5400 18". I don't think much has to be said, other than the low frequency distortion during two lowest sweeps was so low that the background noise started to affect too much, so I didn't plot them. A great performance especially when noticing that it had the most output during those sweeps above ~55 Hz. In laboratory conditions (lower background noise) it could probably stay below 1% THD at all frequencies even during the "105 dB" sweep.

 

[AcuDefTechGuy]

Wow, nice!

Can you link his review here?

http://www.epiksubwoofers.com/C2.pdf

http://www.epiksubwoofers.com/blog/?p=17

 

[AcuDefTechGuy]

Is this a problem with all subwoofers?

Okay, Tom Nousaine said (about Epik Conquest):
"At 16Hz an occasional 'burp' from the protective device could be heard and at 12.5Hz the system would shut off if driven hard enough and long enough."

Is this a problem with all subwoofers?

 

[AcuDefTechGuy]

At 2 meters in a 7,500 cubic feet room, the Conquest produced bass down to 12.5Hz @ 103.9dB w/ 3.4% distortion. This means it could produce 10Hz @ high volume in 4,000 cf room?

According to Epik, it would take TWO of the $15,000 Velodyne DD-1812 subs to produce the same amount of bass @ 20Hz as the Conquest! That's $30,000 vs $1,600!

It would take FIVE of the $10,000 Genelec HTS6 subs to produce the same amount of bass @ 16Hz as the Conquest! That's $50,000 vs $1,600!

So how come Tom Nousaine uses 2 meters measuring distance instead of the usual 1 meter?

 

[Warpdrv]

It hasn't been until recently that people/commercial products started using larger drivers, and larger cabinets porting lower to produce lower FR...

And with the quality of drivers getting better and better, producing less distortion and higher excursion capabilites, I think you will find that you can spend less money to achieve better results...

I think any one of the commercial products that are out there will give you some amazing bass, like the eD products, or the Epic stuff with the larger drivers, lower tunings...

If your not in that big of a hurry, how about that eD A7-450... Im sure it will have Great LF response you could get it unfinished, and have someone put a veneer on it, or have it painted pretty...

 

[alexsound]

i believe war of the worlds and black hawk down both have 10hz content.

so to answer your question, movies make use of frequencies that low.

This may be the case in an actual movie theater, but are those 10hz signals present in DVD's or any other regular consumer format ? I'm failry certain that the DD used for DVD cuts off at 20hz for all channels. I'm not sure about DTS, but I would bet it's the same. On Dolby true and DTS HD for the new HD formats, I don't know.

Let me rephrase my original question to any out there. Are there any
CONSUMER playback mediums (CD,DVD-A or SACD, etc) that can actually
have a recorded 10hz signal ?

 

[Seth=L]

i believe war of the worlds and black hawk down both have 10hz content.

so to answer your question, movies make use of frequencies that low.

So does Resident Evil: Apocalypse. It blew my M&K.

 

[Seth=L]

This may be the case in an actual movie theater, but are those 10hz signals present in DVD's or any other regular consumer format ? I'm failry certain that the DD used for DVD cuts off at 20hz for all channels. I'm not sure about DTS, but I would bet it's the same. On Dolby true and DTS HD for the new HD formats, I don't know.

Let me rephrase my original question to any out there. Are there any
CONSUMER playback mediums (CD,DVD-A or SACD, etc) that can actually
have a recorded 10hz signal ?

I don't believe this is correct, the LFE in War of the Worlds is extraordinarily low.

 

[AcuDefTechGuy]

So does Resident Evil: Apocalypse. It blew my M&K.

What?
How did that happen?

 

[AcuDefTechGuy]

I don't believe this is correct, the LFE in War of the Worlds is extraordinarily low.

And I think the LFE in Transformers HD DVD is about 30Hz.

 

[darien87]

I'd like to know how low the underground tunnel scene of Die Hard 4 goes. That was the first time I've heard my 10" bottom out.

 

[AcuDefTechGuy]

I'd like to know how low the underground tunnel scene of Die Hard 4 goes. That was the first time I've heard my 10" bottom out.

Man, the bass in Die Hard 4 was off the charts!

 

[Seth=L]

What?
How did that happen?

Low frequency on the M&K equalled low impedance. The IC output device choked and blew. The subwoofer exhibited no audible distortion before it happened, it just quit. The LFE is present in the scene where the camera pans from the surface of the suburbs of Raccoon City to the main entrance of The Hive. It serves no purpose, but to blow my subwoofer up it seems.

 

[AcuDefTechGuy]

It serves no purpose, but to blow my subwoofer up it seems.

Bastards!
LOL

 

[j_garcia]

Batman Begins has a 2Hz tone in one scene and The Incredibles has a 5Hz tone. Since most subs can't reproduce them and nearly all people couldn't hear it anyway, it is kind of a moot point. Yes, they do deliver tactile value to the scene.

 

[mike c]

This may be the case in an actual movie theater, but are those 10hz signals present in DVD's or any other regular consumer format ? I'm failry certain that the DD used for DVD cuts off at 20hz for all channels. I'm not sure about DTS, but I would bet it's the same. On Dolby true and DTS HD for the new HD formats, I don't know.

Let me rephrase my original question to any out there. Are there any
CONSUMER playback mediums (CD,DVD-A or SACD, etc) that can actually
have a recorded 10hz signal ?

i was referring to dvd movies, and like j_garcia has mentioned, there are even movies which have content below 10hz.

hence the reason a lot of people nowadays are wanting subwoofers with subsonic capabilities.

some even install the THIGPEN ROTARY (google it if you're interested)