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  • billcurrier
    replied
    Right now I have plenty of tweets too. Sounds like a good deal though. Next time I may be ready to buy, keep me in the loop.

    Hey Dave wanted me to share with you guys the info below on the Neo 10.

    A new option it is useful from 650Hz to around 5000Hz. Would mate well to a small neo tweeter crossing at 4000Hz or so and a pair of 6.5" or 8" woofers down around 650 to 1000Hz. Not sure why PE does not handle this. If you used it down to 150Hz as they propose the sensitivity would be very low around 81 to 82db. It however would be very manageable from 650 to 5000Hz. so a very wide range midrange driver.

    I don't have the arkansas boys email addresses but if you think they may be interested in this driver please forward it to them. Pricey but would make a great mid for a 3 way. with excellent sensitivity.





    A new option it is useful from 650Hz to around 5000Hz. Would mate well to a small neo tweeter crossing at 4000Hz or so and a pair of 6.5" or 8" woofers down around 650 to 1000Hz. Not sure why PE does not handle this. If you used it down to 150Hz as they propose the sensitivity would be very low around 81 to 82db. It however would be very manageable from 650 to 5000Hz. so a very wide range midrange driver.

    I don't have the arkansas boys email addresses but if you think they may be interested in this driver please forward it to them. Pricey but would make a great mid for a 3 way. with excellent sensitivity.


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  • blair
    replied
    I'm good. I have a pair of decent tweeters waiting on a project.

    Thanks for the offer!

    Leave a comment:


  • hipcheck
    replied
    Any body want some Vifa XT25SC50-4 ring radiators?
    I am buying a pair from a guy on diyaudio for a car install. He said he has multiple pairs, and would consider a price break on a larger order. I am getting a pair $36 shipped. (only $18 each shipped, sounds good to me) I could fed-ex to every body no charge.

    Oh just curious...how long did your better half listen to you talk about going to a DIYAudio Event? Bless my wife for even asking did I have fun?

    Steve

    Leave a comment:


  • blair
    replied
    That's an oddball! Maybe someday I'll get bored and try it.

    I went to Tanner's today and got the junk to build this class A SSTART preamp. Steve, do you think the 610 is biased hard enough to need heatsinking? I'll mount it to a small piece of angle aluminum just to be safe.

    Blair

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  • 2leftthumbs
    replied
    Hey guys maybe I'm slow but I just figured out (and had somebody confirm) that the dahlquist drivers and the bravox drivers are the same thing (and still available). Price went down with the name change too. They did show some impressive bass.

    Keep up the preamp work. That sounds kinda interesting. I also foun this one
    "An' then ya bring alla ground wahrs to uh, uh single po-wint..." He looked just like I always pictured: jet-blueblack hair Royal Crown'd into that famous pompadour, the heavily lidded eyes, the .357 Magnum in case Robert Goulet appeared on any nearby TV screen...and the Weller temperature-controlled soldering iron. "...Ah think ya need to bypass them big ol' electrolytics, too..." I knew I was dreaming, but it didn't matter; I'd been wrestling with the problems of purely passive preamps for months, and was nowhere close to any real solutions.

    although it is a passive.

    Leave a comment:


  • hipcheck
    replied
    I run the artwork thru a copy machine, and then iron it on. I use peroxide and muriatic acid. My tank is a generic tuber ware thing, and I have a air pump in the bottom.Pretty simple, but most people stray way far away from this much. "fun"... LOL.Maybe next year I can do some electrical stuff.

    Leave a comment:


  • blair
    replied
    What type of file do you etch off of? If you can use a JPEG, I have a nice little opamp board laid out also. That is if you use the print/transfer method. I never buit my etching solution tank, etc...

    Leave a comment:


  • hipcheck
    replied
    I am going to etch the PCB layout in the article. They are nice and have a built in regulated power supply. If I get that done, I will do a set of PCB's for everybody. I also should have all the basic parts needed. I will get back to you guys on this.

    Leave a comment:


  • blair
    replied
    Hi Keith,

    Actually, my interest is in the SSTART preamp since it is the simplest and the parts are cheap. You can get a tranny from most surplus stores, Mouser, or Apex Jr. Any of them will have something from 30-35v which rectifies to 42-50v. This circuit will have very little current drain. I would assume just under 150mA or so, so using 500mA-1A should be sufficient. The more the marrier since heat becomes and issue using too close of a value. Strain on a tranny can cause all kinds of weird stuff like noise (both mechnical and electrical).

    I'm going to tinker with a good layout. Just give me a bit. I'll keep it well documented.

    Blair

    Leave a comment:


  • billcurrier
    replied
    Now when you guys start talking electricity I think it is bad juju. I will just keep cutting wood. If I need soemthing bad enough I'll trade a set of cabinets or speakers for them. But thanks for offering to solder. By the way thanks for wiring the stuff up in Hot Springs. I hate doing that stuff.

    Leave a comment:


  • Texan
    replied
    Blair,

    I guess you are planning on building the BOZ? It looks like a fine project for me, but I will need a little help selecting the proper parts. All my little projects have ran on batteries so far. Where is a good place to get transformers? It looks like PE wants an arm and a leg for them.

    I will be anxious to see if Steve has done one of these, or if he plans to. He seems to like the single ended class A stuff.

    I am not sure how much sarcasm to assume about Bill and his soldering, but I will be glad to help out if the need arises.

    Leave a comment:


  • blair
    replied
    Keith,

    I would think that this circuit could easily be built for about $25 using "normal parts". I'll lay one out on a perf board soon, so everyone can see a few pictures.

    Blair

    Leave a comment:


  • blair
    replied
    Let's think about this guys.

    He is talking about CDs he is familiar with so it is likely that something besides the CD was different.

    Tom, I don't know what CD player you use, but the one we were using was not the best, however the rest of the music sounded fine to me for the most part even though that room was huge and pretty reflective! Most of the time we were not in the "sweet spot" which can attribute many forms of reflective coloration, etc.... There were also tubes there which many do not have even thoguh I can tell you that those two tube preamps are very clean! Overall, it was probably the room and reflections skewing your observations.

    Blair

    Leave a comment:


  • billcurrier
    replied
    My guess with your CD is they may be first recorded Analog and when they put them on CD they did not remaster them so you lost some of the dynamic headroom that vinyl has over digital. Hey, I actually sound like I know what I am talking about, that could be dangerous! Take a look at the recording dates and the the letter code for the type of recording. The old Genesis stuff when it was remastered changed the sound completely. I heard stuff I never heard on vinyl or on the original CDs.

    Leave a comment:


  • hipcheck
    replied
    The difference you heard in the CD collection could be alot of things. Source, gain, listening volume, and yes quality of recording. Some Cd's are recorded with alot less "life" in them....this has been talked about over and over. What is your audio system? (computer or CD, Preamp or not, what type of Amp or Rec?)

    Leave a comment:

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AR-TX DIY Group

About this Group

Persons who were at the 2010 Hot Springs DIY event. I would like to start a group, and maybe as the year goes on more people from the area can join (hope to have a larger mailing list for any future events)
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Topics: 1
Comments: 96

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