Speakers people would like to see built?

[npdang]

What kind of dream products would you like to see built? A high excursion mid/bass? High spl sub, shallow mount sub, a tweeter that can play down to 1khz? Listem here and who knows...

[slickone]

8" mid that will play from 50-1k flat.....8-12mm excursion and be at least 95db efficient :lol:

[10K2HVN]

would a mixed carbon paper cone with a layer of carbon fiber over the top of the cone be any good..?

carbon fiber layer for extra stiffness and carbon paper to dampen it...

-10k

[Hobbes26]

A full bandwidth (0-20+kHz) point source. Well, with changable directivity.

Make it cheap too! :p

[npdang]

Hahah ...

I know scan-speak carbon fibre cone is paper, doped with carbon fiber. It's actually a very nice cone with very fast response.

If you're ever brave enough, why dont you try spraying some sound deadener on your Seas cones and tell me how it sounds :)

[10K2HVN]

..not that brave but that was actually my other idea.. :)

the layered carbon fiber paper idea seemed more reasonable.

how come more companies dont make full ceramic drivers like Accuton??

peak breakup looks to be around 5.5khz instead of around 4.5khz (7")..

ceramics suppose to be one of the hardest substances on earth (diamond being first) that should make a good piston, shouldnt it..?

how about a cone made from this newly created substance..?

http://www.external.ameslab.gov/Final/News/1999rel/99substance.html

the NEW Second Hardest Substance on Earth.

it doesnt seem too heavy with Aluminum, Magnesium..but how heavy is Boron and Silicon???

[npdang]

..not that brave but that was actually my other idea.. :)

the layered carbon fiber paper idea seemed more reasonable.

how come more companies dont make full ceramic drivers like Accuton??

peak breakup looks to be around 5.5khz instead of around 4.5khz (7")..

ceramics suppose to be one of the hardest substances on earth (diamond being first) that should make a good piston, shouldnt it..?

how about a cone made from this newly created substance..?

http://www.external.ameslab.gov/Final/News/1999rel/99substance.html

the NEW Second Hardest Substance on Earth.

it doesnt seem too heavy with Aluminum, Magnesium..but how heavy is Boron and Silicon???

There's alot that goes into it.. cone shape as well as material. I think the goal is to get a cone that's as stiff as possible, with the lowest possible weight to shift the breakup outside the area you want to use the driver.

I think in the case of Accuton cones, there's really no advantage over the Seas mags. They might be stiffer, but they don't objectively perform better with respect to decay times and/or top end breakup.

[Danny23]

Without a doubt, I would LOVE to see a high quality, shallow-mount, high excursion, zero feedback servo drive sub. Basically, blend a velodyne and an aliante (but with higher SPL).

Now go build it. :D

[technobug]

ummm.....
shallow mount and high excursion are mutually exclusive. me thinks.
kinda like oil and water.
they are contradictions.

[technobug]

I want something that sounds nice IB in my doors. :roll:

Must be quick and accurate, yet rich and full sounding.
Gotta be built rugged to withstand weather.
Plays 60 ~ 3k.
it's gotta have great off-axis response.
:lol:

[technobug]

You know there are quite a few different grades of carbon fiber.

There are some super high modulus carbon fiber materials available now. Very strong yet only a fraction of the weight of lesser grade material.

[mtnickel]

Insane Midbass like the Extremis or XXX mids. Something that can handle insane amounts of power...100-150rms real world, and 2 or 4 ohms of course. Preferably flat up to 2.5-3.2k for 2 way use.
I think there is no lack of wonderful product in the subbass market.
As for tweets, minature chambered with low FS if possible. Not totally plausable, but i think the alpine type X has a pretty low FS. something like 27tdfc in size of a LPG...haha, somewhat physically impossible. But hey, this is a dream page, right! :)

Mark.
Looks like this will be a fun forum, Yay for post number 1! :)

[npdang]

I'm thinking a mid/bass with 1" p-p excursion, no deeper than 3", with a killer midrange that sounds good with as little tuning as possible. Oh yeah and cheap :)

Maybe after that a tweeter with great top end, smooth, small, and plays down to 1khz haha.

[10K2HVN]

what about hardwood domed tweeters..???

i know JVC makes the fullrange 4" woodconed woofers...

hard dome with internal dampening.. its seems like it would be nice if applied to a 1" tweeter.

[npdang]

Haha.. you mean like metal dome tweeters?

Just wondering... what would people be willing to pay for the "ultimate" 7" midbass. Tons of output, good efficiency 88-89db, 4 ohm, not too deep or big, smooth extended frequency response, one of the best distortion performance etc.

I think a good deal would be around $90 each? Given that the Excel is $140 each, and the Revelator is over $200 each.

[10K2HVN]

yup..like metal dome but without the metal..

i wouldnt mind paying $100 shipped each, but ive paid more for what i have right now... :(

[DS-21]

IMO, the most interesting hole to fill in the current market would be a high quality small "twiddler" driver and a larger coax.

Basically, I'm thinking of something similar to the Aura Whisper but maybe a little larger (still smaller than a 3" driver, though), designed for use maybe an octave or so higher (i.e. minimum high-pass Fc of ~500-600Hz, still low enough to allow a 4-driver full range car system) and less designed-in 2nd order distortion. More HF extension would be nice but IMO isn't absolutely required for in-car use. Alternately, it could be a conventional - inasmuch as an underhung or dual gap driver with a copper Faraday ring in the motor is "conventional"! - cone driver with a Thiel CS2.3/CS2.4 style decoupled dustcap that gets called a tweeter in marketing literature. Outside of car audio, IMO such a driver would have limited utility. (Some people might buy them to DIY nearfield desk-mounted speakers or iPod-based portable systems, I guess.) However, in a car such a driver would open up many new possibilities for speaker placement and crossover choice.

For the larger coax, I'm thinking something in the 8" range with a horn bored through the polepiece and a mount on the back designed to accept a conventional dome tweeter. Cone would be curvilinear - I'm not a fundamentalist about any cone material; I've used and liked drivers made from everything - and of course the motor would incorporate a Faraday ring. In all, it would be not entirely dissimilar to a driver RCF has/had. Admittedly, car use would be fairly limited, though such a driver would be a good option for wide-band rear-fill in cars with deck-mounted 8" subwoofers or for cars with 8" door cutouts like the NB and presumably NC Miata. Home use would be considerably more interesting. :D

[Eastcoast]

A small box SQ oriented high excursion sub that doesn't need 2k watts to get going...

Something along the lines of a small box IDmax...


I think with the crowd that you know....I've always thought that if someone built an 8 and 10, reasonable depth, high q midbass that it would take off. Something along the lines of a 4 ohm and shallower JL8IB4

[squeak9798]

I want a XBL^2 compression driver with horn body designed for a car that can play down to 300hz. Toss in a good sized mid (10" or high excursion 8") that can "comfortably" handle ~30hz to 300hz, and you're good to go with the entire speaker setup :D 4 speakers, that's it.

[npdang]

Thanks for all the input guys! Keepem coming :)

I will give you a sneak peak though at what I have planned for later this year.

A 12v fully isolated power supply for the Behringer dcx2496 digital eq/crossover, along with Canare xlr to rca cables using Neutrik tips. They should last a lifetime.

A 12" sub, white ceramic cone with phase plug, very low inductance, ~20mm xmax, small 1cft box. There will be an option for a servo controlled feedback and/or Linkwitz Riley transform circuit. The servo is used to significantly lower distortion... like the old velodyne servo woofers but with more output. The L-R transform will allow you to dial in any any qts and fs you want for a 1cft enclosure.

A high end, no compromise 7" midbass. Treated paper cone for smooth extended response, cast frame, alum. phase plug, extremely low distortion + inductance, high output, and efficiency ~88dbwm. Expect peak to peak excursion at ~ 1inch. 1 way xmax ~11mm. Mounting depth at 3"... 4 ohm impedance. Look for high qts ~.6 and fs around 55hz... made for door mounting. Should be a good deal cheaper than the top dogs Seas Excel, Scan-speak Revelator, Focal Utopia, etc.

[squeak9798]

A 12v fully isolated power supply for the Behringer dcx2496 digital eq/crossover, along with Canare xlr to rca cables using Neutrik tips. They should last a lifetime.

Would this work on a dbx DriverRack PA aswell??

A 12" sub, white ceramic cone with phase plug, very low inductance, ~20mm xmax, small 1cft box. There will be an option for a servo controlled feedback and/or Linkwitz Riley transform circuit. The servo is used to significantly lower distortion... like the old velodyne servo woofers but with more output. The L-R transform will allow you to dial in any any qts and fs you want for a 1cft enclosure.

A high end, no compromise 7" midbass. Treated paper cone for smooth extended response, cast frame, alum. phase plug, extremely low distortion + inductance, high output, and efficiency ~88dbwm. Expect peak to peak excursion at ~ 1inch. 1 way xmax ~11mm. Mounting depth at 3"... 4 ohm impedance. Look for high qts ~.6 and fs around 55hz... made for door mounting. Should be a good deal cheaper than the top dogs Seas Excel, Scan-speak Revelator, Focal Utopia, etc.

Sweetness :twisted:

[sweetcaddy]

i'd like to see a fullrange driver specifically made for the car.

[drocpsu]

for people with severe door depth problems like myself:

A solid 6-6.5" midrange/midbass in 2" mount depth or less designed for IB useage. Something that can be a drop-in solution to ANY car door. It doesn't have to have chest-crushing midbass, but something that has solid impact and punch down to 60hz or so. It seems that a half decent, shallow midbass is something thats really lacking in the car audio world. (I haven't seemed to be able to find any, at least).

[BBOYSTEVIE]

ETA on the Power Supply? @ how much???

Sounds promising...the may be the inexpensive solution to a 3 way front stage that I've been looking for!

[raamaudio]

-Power supply, yes:)

-your new mids, yes:)

-Sub sounds very interesting.

-Small tweeter that kicks arse, we really need that!

Rick

[Weightless]

The mid sounds sweet. Sounds like a perfect fit for my girls miata.

Next, the right tweeter for the job.

J

[HondAudio]

A 7" speaker with the tweeter mounted in the middle like the old KEFs for a perfect point-source. It would need to play down to 45-50 Hz. For the sub? The Phoenix Gold Cyclone :D

[mtnickel]

AND UP FROM THE DEAD!!!!