Is this for real???

[Filterlab]

No idea, they're still a work in progress so no figures are available yet. Wouldn't think they'll be too tricky to drive though.

[anthonyTD]

Out of interest, what is the efficiency of these speakers?

good question,
i have already asked john in an email how is their impedence with frequency, ie, any nasty dipps or peaks in the audio band,still waiting for a reply at the moment.
hopefully he will answer on here later.

[Planot]

good question,
i have already asked john in an email how is their impedence with frequency, ie, any nasty dipps or peaks in the audio band,still waiting for a reply at the moment.
hopefully he will answer on here later.

I have not attempted to measure that parameter with the current prototype.

The frequency response is actually very smooth and extended. I don't plan on releasing measurements of this prototype. I will be releasing measurements on the next, P4.
-----
Sure, I can accommodate three listeners. My wife likes to ask, "John are you having more people over tonight to worship your speaker?"

Just check with me before you come over.

John

[Filterlab]

My curiosity grows with each post.

[Alex D]

Ditto!

[The Grand Wazoo]

So, I wonder whether now, 2 years on, John (Mr Planot) ever developed his interesting design further, or got the funding that he was seeking?
It would be interesting to hear more..........

[Planot]

Thank you for asking. I am currently processing my First Office Action from the US Patent and Trade Mark Office. It has been almost 3 years since I filed my patent. I have cleared all objections and I expect to have the patent in 3 to 6 months.

I am working on prototype 4, P4, still. I have had many problems with suppliers. Time after time they promise to deliver goods built to my specifications and then they do not deliver. That costs me a great deal of time.

I am currently, after a year, attempting to get 3 bids for manufacturing custom voice coils. So far I have one bid.

I have a new motor issue I am working on and should have the new parts soon.

Again it is connecting with the right consultants and suppliers.

I have not wanted to invest too much of limited resources until I have the patent. I hope you will understand that.

The imaging just keeps getting better and better. If I had the resources I could have a marketable prototype in three months or less.

I did have a manufacture come to Omaha in October of 2009 and perform 3 days of measurements. We were in agreement that I need a more sophisticated motor to get the performance that I want.

I can upload a room measurement I took after he left town and I had tweaked the motor. A simple adjustment made a huge improvement in performance. I have since acquired much more sophisticated measuring tools and when I get P4 running satisfactorily I will be posting more information on my Web site. I hope to have a redesigned Web site up in the next 3 months.

I would be glad to answer questions that I can give answers to. I can't discuss any business details or details of the patent proceedings.

John

[The Grand Wazoo]

Thank you very much for getting back to us!
I'd expect the forum management who require you to have a Trade Account so maybe someone can sort that out for you soon. (I think I'm right in saying it doesn't cost anything but it's required as a means of 'declaring an interest').

I'm sure there will be some interest in this & I know I have some questions, but I think I need to re-read your website first.
I'll get back to you!

[Peter Galbavy]

Just came across this recently rewoken thread. Good luck to John, it's truly good to see the spirit of invention and innovation still alive out there. Just hang on to the majority stake, whatever happens. Be wary of option clauses but don't be too paranoid!

[Spectral Morn]

All very interesting and great that John is still around. I had thought reading this thread that there might be a lack of reply, but no, John replies asap.

Having just looked at the website in full I can't imagine how these will sound though not having a traditional box will reduce/kill colourations and lead to a faster more open and detailed sound, with excellent imaging, such as the Gallos I use. Though these speakers will sound nothing like Gallos I think ?

I wish you all the best with your speakers, pity I don't live in the USA I would love to get a listen to these; even do a review for www.adventuresinhifiaudio.com some time....oh well

One of the admin can change John's account to a trade one.


Regards D S D L