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[bizman]

Hi all,
I am a speaker designer and am willing to help in any way I can. I have designed and prototyped a home theater speaker system that is very unique in many ways. They are extremely cool and I will share details with anyone interested. Later

[Cal Weldon]

Originally posted by bizman
I will share details with anyone interested.

We are waiting.

Hello and welcome to the forums. We are always interested in something new and exciting.

Please try and keep this as a non-business type thread so we can leave it here in the loudspeaker section.

Thanks.

[planet10]

Welcome to the forum,

Originally posted by bizman
I have designed and prototyped a home theater speaker system that is very unique in many ways. They are extremely cool and I will share details with anyone interested

Yes please

dave

[bizman]

Thanks for your interest. I will try to keep things as un-business-like as I can but please keep in mind that I am in the process of establishing a new product design company and part of this is to add talented people to my technical network. That being said, here is a brief description of the speaker design. I have been studying loudspeaker designs and the causes of their imperfections for 36 years and designed this system to eliminate standard "box" speaker failures. They are a four piece, 2 way base reflex/folded horn tower that measures 13" wide, 42" tall and 10" deep. They have a unique shape with a round back and 2 flat front baffle boards positioned at a 120 degree angle to each other. This allows for each cabinet to house 2, 6.5" woofers and 2 soft dome tweeters that are electricly seperated. The drivers are mounted at the top of the cabinet to place sound at ear level. Each of the 4 cabinets have 2 inputs each allowing each cabinet to handle 2 channels of sound input and allowing 4 cabinets to produce up to 7.1 surround sound. The combination of multi channel input and the angled baffle boards provide proper channel sepperation and produce a seamless transition that is more like a wall of sound. You don't hear indevidual speakers. That is just the start. The coolest thing is the construction and materials. The interior of the cabinet is devided into 4 seperate chambers that are connected by 7 feet of folded port tubes that finally exits as a 3" rear firing port. This gives them incredibly low and solid bass (down to 30 hz) that is supprising from small woofers. The prototypes are built from solid oak and the backs are a lamination of .125" masonite. Construction was dificult and led to another design breakthrough of using paper as the cabinet material. Yes paper. I wind multiple layers of kraft paper around a mandrel to acheave a wall thickness of about .5". I know what your thinking but I have to tell you that this creates an unbelievably solid and monolithic cabinet that has better acoustic proporties than any other materials or construction technique. They can be finished with wood vineers or a thin open cell foam. Whew! Sorry this got long but as you can see there is alot of design issues addressed here. Please ask specific questions about their proformance and I will address each question with as much detail as possible. I am planning to produce and market them just because they are so good that I have to. The design is also scale-able so the line will be available with woofer sizes from 1" for computer speakers up to 8" for large home theaters. I have attached a picture. Let me know if it shows up. Thanks for your time to read this.

[Cal Weldon]

To post a pic click the browse button at the bottom of the window.

[bizman]

I thought I did. Let me try again.

[sdclc126]

Very intriguing - please tell what drivers you used and would you also post the filter schematic?

Thanks.

And welcome!

[Cal Weldon]

It must be less than 100K and no bigger than 1000 pixels any direction. Like this:

[bear]

Winding paper to create a shape/box is not new.

Good way to build some things though.

You might want to merely put a page up on your website and link it from here? We don't want "glow flakes" but thanks anyway.

Btw, that's a "bass reflex" not a "base reflex", ok?

_-_-bear

[bizman]

I am new to forums and am not sure why I can't attach photo's but I will keep trying. I plan on useing HiVi D6G woofers and Tang 28-847sd tweeters. Crossover is a third order cap./ind. type. I'll keep trying on the photo's.