Home Forums DIY Speakers and Subwoofers AiyIma Speaker Project Brainstorm

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  • #9141

    123toid
    Keymaster

    Alright guys.  I recently reviewed a few amplifiers for a company called Aiyima and they want to collaborate on a project.  They saw the Dinas I made and were really impressed with them.  So they decided to sponsor a video using only their products.  They have quite a bit, but are limited to their drivers, amplifiers, etc.  I have not decided on any parts yet, but thought I would open it up for discussion.  If any of you see any of their products you think might be neat in a  build, let me know.  Here is their store linked to all the products they offer. 

    Aiyima Store

     

    I have been thinking something with Passive radiators.  Maybe a small 2 or 3 way desktop speaker.  I briefly looked it over and found these few drivers that looked interesting.  I didn’t really see very many subwoofers, so that may take the 3 way off the table.

    Woven Fiberglass Mid

    Full Range Driver

    VFD/Clock

    There is so much there, I would love to see if you guys see something else.  Or have some cool ideas.  I am still undecided.


    AiyIma Speaker Project Brainstorm

  • AiyIma Speaker Project Brainstorm

  • unregistered-user

    Member
    July 27, 2019 at 6:01 am

    The store is buried behind a password …. 

    But I would really like to see a couple of projects that go beyond the stereotypical 4 and 5 inch drivers… A couple of 8 inch or even 12 inch woofers would be good.

     

  • tvor-ceasar

    Moderator
    July 27, 2019 at 8:07 pm

    At least the ones you’ve  chosen have some information available. Most of what I looked at had nothing more than “enthusiatically ambiguous” descriptions done up in high level Engrish.

    Using my phone is painful on this site after being used to professional sites such as PE, Mouser, Jameco, and even Antique Electronics Supply. Maybe it’s different on desktop, but I suspect not. (Nope, as Doug noted, membership password protected.)

    What you’ve chosen seems like it has the basis of a decent build. Haven’t run any numbers yet. Any choice of amplifiers make your list? There’s quite a few there, but I’d be suspect of both the overly cheap ones and the super high powered ones with low voltage power supply listed. There are some combo Bluetooth / amp boards that seem okay. Again, no real specs to look over. Makes it hard to do any real critical design, rather it’s “throw this together and call it good” design. 

    As far as any thoughts, I’ll let you know when I muddle through the site.


  • 123toid

    Administrator
    July 27, 2019 at 11:56 pm

    @tvor-ceasar

    that is so weird in stores coming up password protected for you guys. It’s not for me. Is it just the link? I’ll see if I can find a different link. I know what you mean, it’s really hard to tell with the speakers will be able to do. Spencer very ambiguous on a lot of drivers that they carry. It seems like it’s going to be kind of a crapshoot. They have a ton of amplifiers, but I’m not sure many of them are the highest quality. I review the few and I wasn’t overly impressed with the response of the amps. They want a smaller speaker build similar to The Dinas. That in and of itself is not going to be possible as they don’t really have any subwoofers that will go very low. I mean the thing that made the dinosaur impressive was how low and without authority they could go. I’ve considered doing like a 2.1 modular system. Maybe make the subwoofer and the amplifier built into one or two separate units with the speakers clipping on the sides. That way you can use it in multiple arrangements, including hooking up to your television or making it portable.

    @douglas-blake that would be a fun project. The only problem with this is it looks like they’re biggest subwoofer is about 6 and 1/2 in. So it’s not going to probably work with these particular components.


  • kevin-kendrick

    Member
    July 28, 2019 at 3:54 am

    @123toid

    I was able to get past the password and looked at what they were offering. I don’t think these guys are manufacturers.  This kind of stuff is very common overseas, companies represent themselves as manufacturers to us but in most cases they are just a middle man trying to make a buck.  It’s hard to believe they would manufacture so many different types of parts. Also, a couple of the drivers look like Tang Band models that have been re-labeled. Maybe I’m wrong, but I’ve run into this kind of thing in the past and just thought you may want to dig a little deeper.

  • unregistered-user

    Member
    July 28, 2019 at 5:25 am
    Posted by: @kevin-kendrick

    @123toid

    I was able to get past the password and looked at what they were offering. I don’t think these guys are manufacturers.  This kind of stuff is very common overseas, companies represent themselves as manufacturers to us but in most cases they are just a middle man trying to make a buck.  It’s hard to believe they would manufacture so many different types of parts. Also, a couple of the drivers look like Tang Band models that have been re-labeled. Maybe I’m wrong, but I’ve run into this kind of thing in the past and just thought you may want to dig a little deeper.

    Not to make an accusation but there are also a lot of counterfeit parts floating around these days. While it’s mostly components –chips, capacitors, connectors and such– there are some knock off boards as well. 

     

  • tvor-ceasar

    Moderator
    July 28, 2019 at 6:21 am

    Interesting. I copied the store name (Aiyima) with the intention of searching once I re-clicked your link, bu this time I got in. Unfortunately I have to get up early tomorrow (really this) morning, so it’ll have to wait. Strange….

     

    Addendum: I did scroll down far enough to finally find a list of categories to choose from. Yeah, biggest driver they had was a 6.5″. Same deal with T/S #’s, not enough to work with. Hope you have your V2 ready.


  • unregistered-user

    Member
    July 28, 2019 at 2:20 pm

    For what it’s worth … Aiyima on Amazon … looks like they’re a reseller from some of the very familiar looking stuff in their store.

  • 123toid

    Administrator
    July 28, 2019 at 2:39 pm

    @tvor-ceasar

    I always have my DATS ready 😀 

    @Douglas-Blake they do have an amazon store, it is just limited versus their ali-express store.

    it looks liek you have to sign in to get to the store.  That is weird.  


  • unregistered-user

    Member
    July 28, 2019 at 2:55 pm

    @123toid

    Yes, rather weird … My innate paranoia has me wondering what they’re hiding 🤔 

  • tvor-ceasar

    Moderator
    July 28, 2019 at 7:57 pm

    But I did nothing different early this morning, just clicked your link and I got in on both Chrome and IE (I know that just made some people cringe. Lol) truly strange. And I can get in on my phone, no problem. 

    Nick, maybe you could get them to do 2 projects, 1 being the more expensive one and the second being something put together with really inexpensive stuff, say for under $20 total – a pair of $5 drivers and one of their $10 – $15 Bluetooth amps, just based on looks and price, no real specs. Give them a chance to prove their “cheap stuff”.


  • cap

    Member
    July 28, 2019 at 9:26 pm

    All of their subwoofers don’t seem to measure as a subwoofer for a ported enclosure would measure. Their stated Qts and Qes vs LMS are way off. I might be wrong or misunderstanding something though. You might have to purchase multiple models and just wing it with a DATS if my assumptions are correct. Just off the top  of my head, I’d say the 6.5 inch drivers would be good for a 3 way, but I can’t say that with lots of confidence. If going with a full range plus sub, I like this guy or this other dude. When it comes to the tweeters, I’m gonna judge the book by the cover and stick with a silk dome. None of the amps I don’t really think will compare to the plate you used for the DINAS, but it seems you can use some of the amp boards available with extra parts mounted to the cabinet. 

  • 123toid

    Administrator
    July 28, 2019 at 10:18 pm

    @tvor-ceasar

    That is a good idea.  However, I am not sure I really want to do two projects blind. 😀 Well starting blind that is. 

    @cap

    It is true.  I didn’t’ see a true “sub” in fact I think they consider some of their midrange drivers subwoofers (maybe a mistranslation).  I also have been looking at the published FS via the impedance graphs and most seem very high for a subwoofer.  So I am thinking of making it cover something like 50hz-100hz.  That way for pop style music, it should cover most of that band without issue. That is one of the reasons I was considering a modular style system.  If only there was some better information 🙄 My main concern is box size.  I don’t want anything really big. 


  • tvor-ceasar

    Moderator
    July 29, 2019 at 12:42 am

    How about these choices for the “Great Unknown” $10 build? 

    Speakers

    Bluetooth Amp

    Multifunction Amp

    Instead of making a box for the 2″ speakers, just use PVC pipe with a couple 90 degree bends to make them stand with the amp between. Might be surprised with what $10 can do. Might be disgusted too, but why not have a bit of fun in the process?