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Cheap steel laminate inductors?

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  • Cheap steel laminate inductors?

    I've come up with mods for the Dayton B652 and T652 speakers that I would like to offer DIY and/or as a finished product, but the cost of the high-valuewoofer inductors is a cost killer. I know a lot of inexpensive commercial speakers (like the Andrew Jones-designed Pioneer BS-22's) use high AWG (thin) steel laminates that perform satisfactorily. I've tried to find a source for them, but all that seems to be available are the Erse (Parts Express) and Madisound 15 - 18 AWG that are too big and expensive for this application. Does anyone happen to know how to get hold of smaller, cheaper, and thinner gauge steel laminates? Thanks, Dennis Murphy

  • #2
    Re: Cheap steel laminate inductors?

    http://www.dynavox.com/crossover-network/choke-coil
    Don't listen to me - I have not sold any $150,000 speakers.

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    • #3
      Re: Cheap steel laminate inductors?

      They have been out of stock on all of their coils for several months. I wondered if they had gone out of business and actually just called them a few days ago to inquire.

      They told me that they will be out for the foreseeable future until they have a supply arranged overseas.
      “I cried because I had no shoes until I met a man who had no feet”

      If we all did the things we are capable of doing, we would literally ASTOUND ourselves - Thomas A. Edison

      Some people collect stamps, Imelda Marcos collected shoes. I collect speakers.:D

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      • #4
        Re: Cheap steel laminate inductors?

        http://www.speakerworks.com/inductors_s/78.htm

        Does this help?

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        • #5
          Re: Cheap steel laminate inductors?

          Goldwood has a line of cheap cored inductors similar to what you'd find in a lot of entry level commercial gear:

          http://qcomponents.ca/home.php?cat=8...ction=0&page=1
          I'm not deaf, I'm just not listening!

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          • #6
            Re: Cheap steel laminate inductors?

            Originally posted by howard View Post
            Thanks for the reply. They're a little cheaper than air cores, but I can't find any dimensions. They may be too large, particularly for the B652. Bummer about Dynavox. That would have been perfect.

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            • #7
              Re: Cheap steel laminate inductors?

              Have you used these Howard? Wonder if the DCR is accurate. It looks like 20AWG wires are used, so what about the power handling?

              Originally posted by howard View Post
              Some people are addicted to Vicodin. I'm addicted to speaker building.

              The Chorales - Usher 8945A/Vifa XT25TG Build
              ESP Project 101 Lateral MOSFET Amplifier
              LM4780 Parallel Chipamp
              Sonata Soundbar Project
              The Renditions - Active/Passive Towers

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              • #8
                Re: Cheap steel laminate inductors?

                Originally posted by thekorvers View Post
                They have been out of stock on all of their coils for several months. I wondered if they had gone out of business and actually just called them a few days ago to inquire.

                They told me that they will be out for the foreseeable future until they have a supply arranged overseas.
                A friend sent me a link to orevox.com The page is identical to the Dynavox page, with identical products. I placed an order for 12 of the 2.0 mH ($1.10 each), and they let me check out and pay with no indication they were out of stock, and I got an e-mail receipt. We'll see if I actually get them.

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                • #9
                  Re: Cheap steel laminate inductors?

                  Originally posted by framus View Post
                  A friend sent me a link to orevox.com The page is identical to the Dynavox page, with identical products. I placed an order for 12 of the 2.0 mH ($1.10 each), and they let me check out and pay with no indication they were out of stock, and I got an e-mail receipt. We'll see if I actually get them.
                  Interesting. Did not know about that site until now. What is even more interesting is that they are located at the same physical address and have the same phone number. AND THEY SHOW PLENTY OF STOCK!
                  The fellow I talked to a few days ago did not mention a thing about this other entity, just that they were out of stock and would be for a while. I wonder what is going on with these people!?

                  Let us know what happens.
                  “I cried because I had no shoes until I met a man who had no feet”

                  If we all did the things we are capable of doing, we would literally ASTOUND ourselves - Thomas A. Edison

                  Some people collect stamps, Imelda Marcos collected shoes. I collect speakers.:D

                  Comment


                  • #10
                    Re: Cheap steel laminate inductors?

                    Originally posted by thekorvers View Post
                    Interesting. Did not know about that site until now. What is even more interesting is that they are located at the same physical address and have the same phone number. AND THEY SHOW PLENTY OF STOCK!
                    The fellow I talked to a few days ago did not mention a thing about this other entity, just that they were out of stock and would be for a while. I wonder what is going on with these people!?

                    Let us know what happens.
                    Truly weird. It sure seems like an attempt to avoid bad press under the previous trade name or to work around some kind of narrowly worded law suit. But I googled them and didn't see any issues. I'll know better in about 5 days when the coils are supposed to be on my doorstep.

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                    • #11
                      Re: Cheap steel laminate inductors?

                      Originally posted by framus View Post
                      Truly weird. It sure seems like an attempt to avoid bad press under the previous trade name or to work around some kind of narrowly worded law suit. But I googled them and didn't see any issues. I'll know better in about 5 days when the coils are supposed to be on my doorstep.
                      Sigh Last night I got the following message from the foks at Orevox (aka Dynavox):

                      We no longer resell crossover components to general public on this web site. These items are OEM exclusive only. Your PayPal account will not be charged.
                      Sorry for the inconvenience.
                      Orevox Online Store Support Team
                      __________________________________________________
                      They did debit my paypal. I wrote back asking for OEM information, but haven't heard yet.

                      Comment


                      • #12
                        Re: Cheap steel laminate inductors?

                        Did you try ERSE direct? If you need $40+ worth of stuff they may be worth a look.

                        Comment


                        • #13
                          Re: Cheap steel laminate inductors?

                          MCM has some lower cost 22-24 ga inductors. Ferrite instead of steel laminate core if you can live with that.
                          http://www.mcmelectronics.com/browse...0000000214/p/1
                          Keep an open mind, but don't let your brain fall out.

                          Sehlin Sound Solutions

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