2-way & 3-way Exotic Loudspeaker Design Ideas

Hi Guys! :wave2:

I am planning to design, make, sell 2-way and/or 3-way "exotic" speakers. I already have some ideas but I want to ask for your opinion about them. And I also appreciate any other "exotic" 2-way/3-way ideas which is creative. :)

Only my first idea is ready, here it is:
  • Basically it would be an active 2-way sealed speaker with an AMD Motherboard (AsRock B550M-ITX/ac) built in it.
  • It would contain a 6.5" subwoofer and a 6.5" mid-bass with a tweeter (in its middle) -- The Speakers would be a Dayton and SB Acoustics (or Thunder Germany)
  • The amp would be a self-made board using the TPA3255 and the ADAU1701 DSP
  • The size of the speaker would be: height of 40cm ; width of 20cm ; depth of 30cm (or 40cm, depends on your feedback)

What are your thoughts of my idea?
Would you change something in it?(size, drivers, amp, etc.)
Have a better "exotic" idea?

Please let me know here! :)
_______________________________
Have a nice day,
Alie-n Sound Systems - Martin
_______________________________
Remember: The design will be selected and made according to Your feedback, this will be a product what you can buy anywhere in the world! :cheers: So this will be the eternal power of the community! :cool:
 
Hi
Putting a 6.5" woofer with a PC brings several issues, power, vibrations....
anyway, in similar situations, I would consider Dayton RC180-55 2" x 7" Woofer: 2L Vas, 4 ohm, better off-axis response.
and I'll replace the tweeter with 3" or 4" full-range drivers: easier to derive warm sounds in 1k~4k Hz = better sales

are you going stereo?
 
  • Like
Reactions: 1 user
Hi!

Yes, i know about vibrations, and design issues which I'm working on to be solved, but I think it'd be nice to have a PC with a decent speaker system integrated in it.
Anyway, thanks for the idea, it's even better than mine was. :)
I found this Danton Full-Range (you suggested) with VAS ~2.0L: PC83-4 3" Full-Range Poly Cone Driver
What do you think, is it any good?

I have drawn a "beautiful" drawing about the front of the pc ( I don't know if putting a PR on the same side with the woofer is good or not. So please correct me if I'm wrong! ): It's size is the real 20cm X 30cm (almost an A4 paper)
1694860815045.png


And I also drew a "half-cut" drawing of the whole thingy. Here it is:
1694861559188.png


No, I guess it'll be mono. (The community decides this...)

What are your thoughts about the newly modified thing?

Have a nice day, :)
Alie-n Sound Systems - Martin
 
Member
Joined 2007
Paid Member
I would use a higher end sigma DSP with ASRC so that you can use digital input from the PC (E.G SPDIF) and a seperate DAC IC as the ADC/DAC built into the ADAU1701 are not amazing and need well matched input and output levels to sound acceptable.

More exotic, tiny synergy horn, you can use a coaxial driver for this with the horn inserted into the horn throat (see BMS for suitible drivers). Slot load the subwoofer? (gets the acoustic center closer), dual opposed subwoofer drivers (reduces vibration).
 
Hi there!
Oh, I guess you mean the ADAU1450/1451/1452 under high(er)-end. Yeah ASRCs are a good thing but not expert people don't use these features quite often, but you gave me a good idea... :)
My idea is that, I'll make a Base (only moterboard and speaker section ; Wondom's JAB5 Amp), an Advanced (motherboard, selectable CPU/GPU/PSU ; also Wondom's JAB5 Amp), and an Expert (motherboard, selectable CPU/GPU/PSU ; standalone DSP with SPIDF and a TPA3255 Amp) editions in order to satisfy all of your needs (someone needs cheap, but good thing -> Base ; Want more advanced Speaker with PC? -> Advanced ; Want decent audio quality with decent PC? -> Expert).

- What do you think of this new idea? :spin:
______________________________________________

Anyway, a slot load with a horn can be a great idea (no matters what the Edition will be), so I'll make a plan of it to see if if would fit in the 20cm X 30cm X 40cm case along with the PC. (I think I'll post it tomorrow.)
____________________________________________________________
Thanks for all of your ideas! :worship:
Keep sharing them to make an awesome product together! :c_flag:
____________________________________________________________
Have a nice day, :)
Alie-n Sound Systems - Martin
 
I am planning to design, make, sell ..... an active 2-way sealed speaker with an AMD Motherboard .... a 6.5" subwoofer and a 6.5" mid-bass...
What are your thoughts of my idea?
As mentioned above, electronics have huge reliability issues when triggered by vibrations. Using surface mount devices (only) on a thicker PCB would reduce these to a good extent. Since the motherboard makes higher EMI conditions inevitable, using DSPs to get higher fidelit, and possibly reduced costs is also a good idea.

However, there's only so much money one could charge for a loudspeaker that size and power, considerably reducing your profits. If I were you, I would scale things up to higher power, which also conveniently justifies the active electronics used inside. That would also imply getting rid of the itsy-bitsy TPA3255 in favour of something more powerful and preferably more accurate.
 
Last edited:
  • Like
Reactions: 1 user
Hi!
As mentioned above, electronics have huge reliability issues when triggered by vibrations.
Yeah, I know that electronics is like 20kV-s... :-D You need to handle it with extreme care...

However, there's only so much money one could charge for a loudspeaker that size and power, considerably reducing your profits.
I'm not really going for profit but of course I need some money what I live on... But you're true...

If I were you, I would scale things up to higher power, which also conveniently justifies the active electronics used inside.
That'd be a good idea to make a more POWERFUL :cool: system, so the customers would be able to make at least a home "cinema" with it, but it'd also be great if we could find out a way to make it work with a PC (I mean the motherboard & the CPU/GPU) in it (of course some separator sheets are possible in the case to separate parts from together).

Maybe with some kind of a suspension (and of course in a separated "cabin" in the case) the motherboard (and the components on it) would be stable and usable as a normal PC.

What do You think?
Have an idea, please share it with me!

Thanks for the lots of ideas / advices!
Have a nice day, :)
Alie-n Sound Systems - Martin
________________________________________
P.S.: If someone has an idea about how to make a quite strong speaker with a motherboard in it, then please share it! 🙏🙏🙏
 
Yeah, I know that electronics is like 20kV-s... :-D You need to handle it with extreme care...
That was not a joke. Computer processors and associated circuitry are usually not designed to operate in such adverse environments. That also justifies DSPs.

https://en.wikipedia.org/wiki/Reliability_engineering

That'd be a good idea to make a more POWERFUL :cool: system, so the customers would be able to make at least a home "cinema" with it....
Home cinema is a fairly easy thing to achieve if one sticks to the basics. But I didn't meant PA power levels, say, at least a few hundred watts of average power.
Maybe with some kind of a suspension (and of course in a separated "cabin" in the case) the motherboard (and the components on it) would be stable and usable as a normal PC.

What do You think?

It doesn't have to be that difficult, especially if you address reliability right from the initial design stages. Besides, there're already many 'self-powered' speakers in the market that successfully house the electronics alongside the loudspeaker drivers at much higher power/SPL.

A motherboard is just not cut out for that kind of brutal treatment, so I would think DSPs, as already mentioned above by kipman.

All the best.
 
Hi!
That was not a joke.
Sorry. I wanted to write a better joke, but english is my 2nd language, so please forgive me.

few hundred watts of average power
Yes, I meant around a 200-300W avg.

So we dropped the idea of putting a PC into the speaker, but we can put (the Motherboard) in a separate box along with a professional DAC, a pro. DSP and a nice AMP.
We can put in the (separate) box a DAC, DSP and a Class-AB Amp (profiguy suggested it, and many of you before)

The drivers can be:
- Subwoofer: Dayton Epique E180HE-44 (7", 200W RMS)
- Full-range: Dayton PS65LP-4 (6.5", 40W RMS)

What are your thoughts?
Have a better driver idea, or have a good idea of what the type / manufacturer / properties of the DAC, DSP, AMP should be, then please write it down!

Have a nice day,
Alie-n Sound Systems - Martin
 
When I think of exotic speakers there is always an element of design that is not usual (sometimes it is design over function). Think of the Kef Blade or Nautilus, Wilson Audio, suspended driver speaker, open baffle speaker, large horn speaker or probably the most extreme these Metexas that are human like. I also think of high end drivers using exotic materials, the likes of Accuton, beryllium drivers from Bliesma or the new Purifi long throw drivers.

So, this seems to be a fairly standard design in a rectangular box using moderately priced drivers and electronics. This does not scream exotic to me.

As for no target audience, if this is to be a business then you are going about it the wrong way - identify your audience, find out what they want and design an item to meet that need. Not build something you like and try and find people to buy it. Also bear in mind your price point, typically the retail price of a speaker is approx 5-10 times the material costs (accounting for labour, marketing, shipping, warranty’s, legal, setting up the company etc.). You may want to work on this side of the project before going forward.

Oh, and you need to know your competition - have a look at the Buchardt A300 which seems to do everything you are proposing, also the Revel M106 which is passive but measures very well and is keenly priced. Both of these use SB acoustics driver iirc. There are also many 6.5” studio monitors that still work very well as Hifi speakers - Focal Shape 65, Adam A7X, Dynaudio Lyd 7 etc.

Also have a read of the “Open Source Monkey Box” thread on here which was a collaborative design. By doing the design by committee on this forum you will have no Intellectual Property in the product and therefore if you come up with any novel ideas you cannot exploit and all can use.

1694943289524.jpeg
 
I once made the (rough) cad drawings for a speaker based on the form of a Buckyball. One of the pentagons having the tweeter pointing at you and all 20 hexagons with a wideband speaker on them. Maybe I can find those files back somewhere. Never got to build it as I saw no way to cut wood at the angles needed or how to put it together if I could have the wood cut.
 
  • Like
Reactions: 1 user
Hi Guys!

I'm so sorry for not answering your comments, but I'm still not at home. (Hopefully I'll get back in this afternoon.)

Anyway, enough talking, let's start!
@Ugg10 Thanks for ideas and your advices. They are very helpful. :)

@Havoc Yes, that would be a good idea. Yesterday, I drawn 1 (littlebit) similar and 1 random ideas to make.

- The first is a hexagonal shaped boombox with two 6.5" woofers and two 1" tweeters (I will send its drawing. And I will definitely make this boombox for myself, if it'll be great then I'll make a product from it.)

- The second is a strange-shaped "boombox". I will send the drawing of it because it's hard to write its looking and the drivers down.

Have a nice day,
Alie-n Sound Systems - Martin
 
Hi Guys!

Finally I'm able to send you my newest designs.

So, the first is the design what I'll make for myself and test it. (, if it is any good then it can be a product.)

The second is also an idea, if I will finish the HexaBoom then I'll test that, and (I think) it's a quite nice design.

What do You think?

Have a nice day,
Martin
 

Attachments

  • IMG_20230920_175414.jpg
    IMG_20230920_175414.jpg
    173.9 KB · Views: 28
  • IMG_20230920_175428.jpg
    IMG_20230920_175428.jpg
    221.5 KB · Views: 35
Found a old screenshot back:
buckyball_speaker.jpg

Never got around to do more on it so I never looked into the volume or what the speakers would need. And very likely the speakers I had in mind won't be available anymore (if I would remember what they were in the first place).
 
  • Like
Reactions: 1 user