They have taken tonight to reveal a speaker design that has no room loading which means you don't hear your room.

It's exquisite.

Believe it or not it is possible to divide frequencies between two drivers with no crossover by wiring the exact correct complimentary pair of drivers in-series and out-of-phase and locating the face of each in the correct room position.

In this configuration, low frequencies gravitate toward the larger driver and high frequencies gravitate toward the smaller driver. Never do both drivers play the same frequencies with equal amplitude. The circuit is self-regulating using impedance relationships between the two drivers to act as the crossover network.

When the drivers are in-phase the overlapping frequencies between them create a self-resonance in the circuit which brings excessive current into those frequencies and to both drivers, causing both to have a smeared sound, but also loading the room which in turn is loading the drivers creating a 3rd order resonant circuit with the room itself. This is also lowering the impedance and raising the back EMF that the amplifier sees causing it to struggle.... kind of like having to turn the windshield wipers on when it rains.

Out of phase, both the 2nd order resonance between the two drivers is gone, but also the 3rd with the room. This eliminates almost all the back EMF coming from the voice coils not only into each other, but into the outputs of the amplifier.  What little bit of overlapping current and frequencies leak through are cancelled in the air space around the speaker.  

This speaker system would need no bass traps in even the worst rooms, because the speaker does not load the room at room loading frequencies found in the average residential sized spaces.

So, this is what I was taught this evening by those little guys in my head... all I can say is it's a good thing I'm not extra smart because if I was there wouldn't be room for these little guys in my head if you know what I mean.

The system's ability to do what I suggested can be easily demonstrated by flipping the phase at which point there is a 300% exaggeration in the bass response and about and equal reduction in clarity.  It basically turns you room into a disco tech, so it occurred to me that a switch or simple instructions on how to hook it up wrong might be in order for those audiophiles who like to be a little naughty from time to time.

Once again, using Randy's demo disk since I've been using it on multiple systems all winter I can safely say I have never heard a single track on the disk sound better on any other setup. There will be a lot more about all of this coming as summer progresses so stay tuned... This is a teaser just to document the discovery while it's only hours old. The sound is so wide open and crystal clear it's frankly hard to believe!

I'm just stoked about the video I got to watch in my mind of how the frequencies and fields interact inside the wires and coils of the two drivers and then how the air in the room completes a local feedback loop between the two coils and how the room boundaries interaction completes a global feedback loop on top of it all which is why so many speakers, the vast majority in fact, sound like speakers in a room.

With these problems completely eliminated the sound is like listening to headphones with the most insane 3D imaging and sound-stage you've ever heard. In fact headphones don't get it either now that I compare the two sounds in my mind... the phones if they are closed back are just miniature rooms, and sadly if they are open back they have an unnatural ambience from your actual room. Just put your hands over the open back of the phones without music playing to hear what is being added to the sound.

Anyway, some really cool shit is happening around here in the greater Decware family and if the UFO's want to hi-jack this system they're going to need anti-gravity and a shrink-ray gun at a minimum. ; ). I'll be camped out in front of this new speaker system for months in secret with my carbine wiring my brain around this new sound.  Of course it doesn't hurt that this comes right after the CSP325 is completed and now paired with the 25th Anniversary Zen Triode amplifier...  It's the combination of all of the over the top Decware stuff finding it's own cymatic pattern of perfection.


God bless us all!

Steve

sounds like a ZEN other worldly kind of thing! Probably be one of those, "you have to hear it and you still will not understand it!" kind of things.  

 I heard of something that reminds me of this idea 'maybe'. Seems it was to be put out by Fried many years ago. He stated that his device could eliminate crossovers in speaker systems of most types, anyway. Never heard anymore about it, and have been wondering ever since.

Steve, This in-series and out-of-phase project seems to have been side tracked by arrival of the Lii full range speakers.
Have you revisited this?

Brian

It certainly does seem interesting.

Steve said:  "I have been an imaging freak for a long time."
Ha Ha, Yes I have noticed that about you!

Brian

I enjoyed that story!
I have often wondered what your journey was. Thanks for telling.

Brian

Steve, how is the project coming along?