single driver speakers


Someone please help me out here...

I am struggling to understand how a single driver system can sound anywhere near as good as a multiple-driver system with crossovers...

I understand that crossovers and multiple drivers can have issues with interference, phase, etc - but those drawbacks would seem to be vastly outweighed by the increased frequency response and clarity within a frequency spectrum that a multi-driver system produces.

I see these

https://www.audiogon.com/listings/lis8ij2i-voxativ-ampeggio-due-70-off-priced-to-move-full-range

and just can not wrap my mind around how they could sound better than a multi-driver system costing 1/10 as much. (no knock intended on the seller of these speakers, I was just browsing listings and saw them so it made me wonder)

Thanks!
babyseaotter99

Sunshdw,


Thanks for the information.  I looked up the Audio Nirvana drivers.  I like what I saw.  I am a fan of drivers with pleated fabric surrounds; they tend to be more lively sounding than drivers with the half-roll soft surrounds that are common these days. 

You can’t understand what “coherent” means until you’ve heard a good single driver speaker. They have their weaknesses (like everything), but they have a naturalness and coherence that nothing else can compete with.

cd318
1,708 posts
05-13-2018 10:08am
Single drivers must be the future, we just need the engineering to catch up. Overnight multiways will become obsolete.

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This has been my mantra here on audiogon past few months, Single/Point Source is the Future, but the future is NOW. 
PS is The 21st Century Speaker.
Its just that the audiophile community and I fully understand why,,,has yet to awaken and grasp the new technology, The why is this.
We were all raised on going to our local audio shops, with rooms full of *speakers* We called them *loud* speakers.
Little did we know the old old technology, = Field Coil, has been scraped, for the *new* xover box things.
No wonder we would test endlessly, A/B/C , etc, using the rotary switch in the listening room, walking away abit disappointed.
The one line that did offer some high fidelity was Jensen, with horns and Field Coils. 
But of course that did not hold, away they went.
fast forward, Folks continue to this very day, June23,2021, to purchase box/xover designs with absoluetly no thought whatsoever about Point Source/Field Coils.
My guess is even IF FC's sold for $1,000, folks would continue to pass and purchase $$$$$$$$ brand X,Y,Z box/xover dinasaurs. 
Such is our world today.
No the world is  not flat. 1000 years ago  they would have thrown you in prison for lunacy.
Nice Day
The Hifi Guy
New Orleans

nickolaspappas
27 posts
05-11-2019 12:05pm
You can’t understand what “coherent” means until you’ve heard a good single driver speaker. They have their weaknesses (like everything), but they have a naturalness and coherence that nothing else can compete with.

~~~~~~~~~~~~~~~~~~~~
Exactly,
I've been experiementing with various cheap chinese *full range/point source* drivers,
Reaction: WOWWW,.
Out came the brand new Millennium tweeters ($700 sold on ebay $300 $400+ loss in 1 month)
Now a  4 inch *full range takes its place along with a  1963 horn, combo annihilates the top of the line dome tweeter.
**weaknesses*
Maybe a tad bass shy, maybe a  tad roll off in highs, MAYBE, not sure as i've not heard the new high tech PS drivers in person.
But from some research. those *weaknesses*  can easily be forgiven , when we look at the plethora, abundant weaknesses inherent in xover/box designs. 
After hearing this cheap PS, there is no xover/box design that would eve offera  slight interest, not even Troel Gravesen's Seas/Scapspeak world class designs are of any interest whatsoever.
The only speakers that exist for me are the new high tech Point Source/Field Coils.
All others are dinasaurs. 
If I need bass, I can easily find bass, If I need highs I can easily find highs to help out a  single source speaker.
Its the mids which are the single most critical fq range which TG's designs fail in. 
Yes if you are listening Troels, your speakers are a  *wet blanket* vs the new high tech PS/FC designs. 
Will Scanspeak/Seas ever come around to accepting the new high tech?
Doubt it, Both are old school, not in step with the modern world. 
Ask yourself, are you in the old world technology or are you willing to enter into The New 21st C Speaker Experience.
This is what every audiophile should ask themselves. 
The Hifi Guy
New Orleans


larryi
2,527 posts
05-22-2018 1:38pm

I like full-range drivers, but, I particularly like them as extended range drivers in multi-driver systems. The Jensen/ERPI M-10 field-coil driver with a tweeter, as an example, makes quite an extraordinary system. I also heard a two-way system using the Japanese GIP-4165 field-coil driver (Western Electric clone) and that was killer good too.

As for true full range, single driver systems, the best I've heard is probably the Charney with the Voxativ driver. It delivered the speed and immediacy of single driver systems without sounding harsh, nasal and peaked in the upper midrange and treble range; the primary shortcoming was a lack of high frequency extension. Voxative also makes a very good sounding full range system using its own drivers. A friend utilized a field-coil Feastrix driver in a nice custom system, but, it really needed something to boost the bass response.

~~~~~~~~~~~~~~~~~~~~~
Yes I am usinga  4 inch point source (DL off ebay, $200) with a  1963 Magnovox horn tweeter, Wonderful combo, beats any xover/box design I've ever heard in my experience of 40 years. 
Jensen made incredible FC's back in its day. 
The Vox you speak of, is not far off entering my system, maybe late September.
I have bass, so not at all important if the Vox rolls on the low end. High end either, the horn will come in handy, if not needed, off it goes. 
Might end up as a   3 way.
W18E001's dual each channel, + Vox + Magnovox horn. 
We;'ll have to see how testing goes,

btw I've listened to some YT clips of the Feastrex,  speaker seemed a  bit bass shy.  
And at that price, you would expect, solid bass. 
However, Feastrex does offer many models, particularilly their massive NEO magnet driver. But these are out my budget.
The AER lab/germany also  sound  very special, but  not in  my budget.