Highly Efficent Driver

Archived from groups: rec.audio.pro (More info?)

I am looking for a driver for a DJ friend of mine. His speaker are
pleanty loud, however, he wants to be able to produce more bass, mostly
because people want it. The basic want is for people to feel it on the
ground. He has a spare Crown CT-2000 (660RMS x 2 @ 4 ohms). I am
trying to find a very efficent driver for him. I have seen the Adire
Tempest, but it wasn't as efficent as I was hoping for. Also the
enclosure I have thought of is downfiring ported front at around 25hz,
or is this too low. Also, I thought of a band pass, even though I hate
how these sound, it'd probably be fine for him since he is going for
loudness not good sounding, really. Maybe, the Adire Folded Horn
design.

Thanks for any thoughts.

Archived from groups: rec.audio.pro (More info?)

agreed.....buy a buncha cheapo 15's or 18's like eminence or pyle and you'll
get more SPL than you would with the same dollar value in JBL's....crown is
another one, although I like eminence and I've heard they are very
efficient.....you should also make sure that the cabinet is designed for the
drivers you're putting in it....generally, the bigger the cabinet the bigger
the bass, but you should really look at cabinet designs before throwing
660watt drivers in a cab that was designed for 200watters... catch my drift?
also, your crossover will affect frequency response

--

Jonny Durango

"Patrick was a saint. I ain't."

http://www.jdurango.com



"Phil Allison" <philallison@tpg.com.au> wrote in message
news:327gp4F3j692mU1@individual.net...
>
> <bjackson1@gmail.com>
> >I am looking for a driver for a DJ friend of mine. His speaker are
> > pleanty loud, however, he wants to be able to produce more bass, mostly
> > because people want it. The basic want is for people to feel it on the
> > ground. He has a spare Crown CT-2000 (660RMS x 2 @ 4 ohms). I am
> > trying to find a very efficent driver for him. I have seen the Adire
> > Tempest, but it wasn't as efficent as I was hoping for.
>
>
>
> ** The secret to high SPL bass is the use of MULTIPLE drivers - no need
> to use exotic or expensive ones, just lots of pretty ordinary ones to
build
> up the total cone area and so max SPL capacity.
>
> Hi-fi bass drivers are not usually suitable for dicso use - better go
for
> PA bass drivers.
>
>
>
>
>
> ............. Phil
>
>

Archived from groups: rec.audio.pro (More info?)

In article <1103005245.311593.67810@c13g2000cwb.googlegroups.com>,
<bjackson1@gmail.com> wrote:
>I am looking for a driver for a DJ friend of mine. His speaker are
>pleanty loud, however, he wants to be able to produce more bass, mostly
>because people want it. The basic want is for people to feel it on the
>ground. He has a spare Crown CT-2000 (660RMS x 2 @ 4 ohms). I am
>trying to find a very efficent driver for him. I have seen the Adire
>Tempest, but it wasn't as efficent as I was hoping for. Also the
>enclosure I have thought of is downfiring ported front at around 25hz,
>or is this too low. Also, I thought of a band pass, even though I hate
>how these sound, it'd probably be fine for him since he is going for
>loudness not good sounding, really. Maybe, the Adire Folded Horn
>design.

You don't want a highly efficient driver, you want a highly efficient driver
and cabinet together, because they make a system.

You can get any two of efficiency, small size, and extension. If your friend
is a DJ, he is not going to want to lug a folded horn around with him. I
remember back when club bands toured with Voice of the Theatre boxes and it
was not fun.

A bandpass enclosure, tuned up high, will give you a lot of thump and a lot
of bump. It won't give you any real bass extension, but it will probably
make your friend happy because it won't be a huge box to lug around and
it will be efficient.

The Adire drivers seem kind of light-duty for this sort of application.
Take a look at the McCauley or Radian stuff. They will take a lot of abuse
and will be reasonable enough in a narrowly-tuned cabinet.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Archived from groups: rec.audio.pro (More info?)

"Blind Joni" <blindjoni@aol.com> wrote in message
news:20041214121959.06555.00001209@mb-m22.aol.com
>> Folded horns follow the Iron Law - in that they can provide deep
>> bass and high efficiency. When they provide those features, they are
>> huge.
>
> The SPL BDeap32's and BEdeapR's are boundry dependant horns..prety
> small and use each other or walls to provide the final horn fold.
>
> http://www.servodrive.com/SPL-bdeap32.html

Using other structural entities than the speaker box being considered would
be *cheating* from the standpoint of the Iron Law, But it's *smart* in the
real world, if you can pull it off.

Archived from groups: rec.audio.pro (More info?)

"Blind Joni" <blindjoni@aol.com> wrote in message
news:20041214140941.07662.00001910@mb-m01.aol.com
>> Using other structural entities than the speaker box being
>> considered would be *cheating* from the standpoint of the Iron Law,
>> But it's *smart* in the real world, if you can pull it off.
>>
>
> Oh..it works..I've heard it. For clubs or even home theaters amazing
> SPL at low frequencies can be obtained.
>

You're preaching to the choir - brother!

Classic case was the origional Klipschorn. People who *got it* put them in
corners and got monster bass with not a lot of power. People who didn't *get
it* put them anywhere else and had dissapointing bass.

Archived from groups: rec.audio.pro (More info?)

On Tue, 14 Dec 2004 13:16:53 -0500, "Arny Krueger" <arnyk@hotpop.com>
wrote:

>Using other structural entities than the speaker box being considered would
>be *cheating* from the standpoint of the Iron Law, But it's *smart* in the
>real world, if you can pull it off. <snip>

Aren't we forgetting what Paul Klipsch did in 1940?

dB

Archived from groups: rec.audio.pro (More info?)

DeserTBoB <desertb@rglobal.net> wrote:

> Biggest pile of bullshit ever created: The Karlson resonator.
>
> dB

I had one such enclosure given to me about 15 years ago (it's long gone
now) by an old fellow "audiophile". This, along a Revox G-36 open reel
tube tape deck and cases of old vaccum tubes...

Talk about weird design (the Karlson)!

Mine had a custom baffle added so a 12 inches could be mounted instead
of the mandated 15 inches.

The sound was indeed not very impressive. The extremely cheap and low
power paper cone driver used outta be the culprit. I should have tried
to install a better driver before i dismantled and burned the thing...

I still have the non-working Revox... Anyone want it?

--
Eric (Dero) Desrochers
http://homepage.mac.com/dero72

Hiroshima 45, Tchernobyl 86, Windows 95