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  • joshshetter
    replied
    I did ask there, even in a thread that Paul is in. I also asked about a possible cabinet related cancellation and got no reply. I got the info I needed at ASR.

    Leave a comment:


  • Colonel7
    commented on 's reply
    Ask on the TechTalk Forum. You're in the Speaker Gallery. My guess is that people see Amiga and don't click on it because it's a finished design and been out awhile.

  • joshshetter
    replied
    Boy this forum is kinda dead, guess I'll just folks at ASR.

    Leave a comment:


  • joshshetter
    replied
    Anyone know how to drop the tweeter by 1-2db? I know it was mentioned previously but I'm not that familiar with crossover topology. One user mentioned it could be a simple resistor over the right spots. I still find these speakers just bright.

    Leave a comment:


  • joshshetter
    replied
    So I moved things around, with each new placement lowering the speakers tweeter to ear height and each time there was a great improvement. I have the tweeters now at ear level and the sound is incredible. They seem extremely sensitive to vertical placement, at least below the tweeter.

    I had two subs, one in each corner but I've moved them out and they are now the stands for the Amiga's. I think this sounds better and is easier to integrate than having them in the corners, the timing feels better.

    I was curious, I wanted to get a minidsp like device to split my signal between tops and subs, but having owned one before and being unhappy with it's degredation in sound quality, I'm wondering my alternatives are that don't cost a bunch. Is it possible to just toss one of the 80hz passive filters available at PE in line with the Amiga's or does this not really work?

    Leave a comment:


  • djg
    commented on 's reply
    You should probably start designing your own.

    And some people say it's not safe to burn MDF.

  • joshshetter
    replied
    I have +2db at 2300hz and -1db with wide bandwidth at 5400hz. I think this speaker has a directivity error around the xover as a lot of two ways do and it makes it difficult to EQ the issues.

    I'm sure most people are happy, but I'm a little more discerning than most. I very much prefer neutrality and have some speakers that exhibit that, so when I get a speaker like this with problems, the music just doesn't sound right and all I can hear are the issues. Oh well.

    I think the classix II sound better in some ways, but they definitely measure better, very smooth response. I find the amigas to be comparatively and audibly jagged in response.

    Leave a comment:


  • Chris Roemer
    commented on 's reply
    josh, not sure if you tried Paul's suggestion to drop the value of R2 or not, but your measurements match the orig. designer's nearly to a tee!
    Also not sure what XO changes you tried to "flatten"? the FR above 1k, but I could make a suggestion or 2 if you'd like.
    A "notch" over the 4-10k range MIGHT help. And if you don't feel that area is too bright, the notch along w/unpadding the tweeter MIGHT bring up the 2-4k octave (possibly even tweaking the HP "knee" a bit).

    As you know, MOST peeps are quite happy w/the sound of these ...

  • joshshetter
    replied
    Did some outdoor measurements. Doesn't really look very good. Some pretty obvious issues that I find audibly annoying and make me dislike the speaker overall. Measurements below 200-300 can be ignored.

    That dip in the mid range sucks, feels like there's a disconnect between the musical content that is there. I can try to bring it back in but can't settle on anything that sounds correct.

    Oh well guess I'll offload these to a friend and try something else.



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  • Geoff Millar
    commented on 's reply
    From my googling, I think you can get the parts from two sources,so what's involved is about $10-$15 in extra post. The drivers are listed as in stock at one supplier.

    I just noticed that the DX25 at that supplier is listed as a Scan Speak (Denmark made) replacement for the Vifa DX25TG05-04. The original tweeter for the Amigas was the DX25TG09-04, so it's worth checking if that's a direct replacement: I suggest you post a separate question on PETT for that issue, I'm sure Paul will see it.

    I found that when building our speakers, the main problem was not the driver and crossover parts, but getting the MDF cut. No-one was interested in doing the driver rebates, which is why I had to do them myself. Only two firms in Melbourne would cut the MDF for me.

    Geoff

  • djg
    commented on 's reply
    There are other speakers besides Amigas.

  • joshshetter
    replied
    Added two subs to my Amiga setup, sounds awesome. I find adding them really helps clean up the sort of bright sound I was feeling the speakers had. I have no filtering on the Amigas yet, subs crossed fairly high to avoid that sort of 100hz emptiness. I can probably figure out a way to route the motu m4 I'm using to filter some of the lows of the Amigas although things sound really nice and tight as is. I tried plugging the ports of the Amigas but they lost some "open-ness"? Hard to describe.

    Leave a comment:


  • Basshead
    replied
    I did a mock order on PE with just the 4x drivers only (for 2x Amiga’s) and the freight came to US$105. With adding one pair of XO inductors it added just a couple of dollars. Potentially it could go up to around US$150 for freight of all parts (excluding mdf) to Australia.

    Out of curiosity, I tried a new mock order of 2x amiga knock down kits (which are now also out of stock - but weren’t a couple of days ago) and freight came to a whopping US$386!!! (That still needs to be converted to AU$ so around $500!!!). From trying some local suppliers, it seems no one company has current stock of all the parts, so I’d need to buy from multiple suppliers to make the pair.

    Leave a comment:


  • djg
    commented on 's reply
    I mentioned SBA because I thought maybe cheaper shipping to Australia. I'd rather spend on quality than shipping.

  • Geoff Millar
    commented on 's reply
    SB makes very nice drivers, have used their budget level SB16PFC in a two way, it sounds good although not quite on a level with the RS180P; but less than half its price. However, that's the cheapie of the range: SB has drivers at many price points and there are many builds using their woofers and/or tweeters.

    A key thing when you can't audition a speaker is that there are enough builds so you can get an idea of the sound: a lot of people have built the Amigas and are happy with the sound. Many reviews, too. Lots of projects with SB drivers also, but perhaps not as many builds and reviews?
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