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  • Re: on Sale - $55/pr (drivers & XO)

    Originally posted by Herman Trivilino View Post
    Which parts are those? We'll find a work-around.



    From Post #18 by Chris Roemer in this thread ...

    My cabinet choice: 28"h x 6"w x 9.5"d. 0.55 cf
    A 2"d x 7" long rear vent centered 10" up from the bottom tunes this box to 39 Hz yielding an F3 of 38. I'd mount the upper woofer's center 4" down from the box top. This puts the tweeter at about 21", so theese should sound best on about 12" high stands.
    Part numbers that are backordered are:

    4 Ohm 5W Resistor Part Number: 015-4
    20 Ohm 10W Resistor Part Number: 016-20

    Was he suggesting that the floorstanding speakers themselves should be on 12" high stands as well?

    I imagine if the upper woofer's center is 4" down from the box top at 24", and the tweeter is at 21", then the bottom woofer's center is at 18"?

    The parts list I was looking at was back from post 96 on page 5.
    Modding the Lepai T-Amp

    Comment


    • Re: on Sale - $55/pr (drivers & XO)

      Originally posted by Voladin View Post
      You can replace 015-4 with 016-4 from the ntn parts list. http://www.parts-express.com/pe/show...rtnumber=016-4
      Thanks. That solves one of my problems.

      What about part 016-20 for the 20ohm 10W resistor?
      Modding the Lepai T-Amp

      Comment


      • Re: on Sale - $55/pr (drivers & XO)

        Originally posted by XtremeRevolution View Post
        Thanks. That solves one of my problems.

        What about part 016-20 for the 20ohm 10W resistor?
        016-20 shows in stock for me, but if it isn't you could use 004-20. Costs a bit more but not much. http://www.parts-express.com/pe/show...tnumber=004-20

        Comment


        • Re: on Sale - $55/pr (drivers & XO)

          Originally posted by XtremeRevolution View Post
          Was he suggesting that the floorstanding speakers themselves should be on 12" high stands as well?
          No. The purpose of the stands is to get the tweeter at the same height as your ear.

          I imagine if the upper woofer's center is 4" down from the box top at 24", and the tweeter is at 21", then the bottom woofer's center is at 18"?
          I think so, yes.

          Comment


          • Re: on Sale - $55/pr (drivers & XO)

            Originally posted by Voladin View Post
            016-20 shows in stock for me, but if it isn't you could use 004-20. Costs a bit more but not much. http://www.parts-express.com/pe/show...tnumber=004-20
            It does show in stock, but if you add it to your cart it shows backordered. At least it did for me.

            Thanks!

            Can anyone point me to the diagrams I need to follow to wire these up?
            Modding the Lepai T-Amp

            Comment


            • Re: on Sale - $55/pr (drivers & XO)

              http://techtalk.parts-express.com/album.php?albumid=356

              You can always build a 12" taller tower with a false bottom to keep you volume correct. Add some mass, mount your crossover in the bottom compartment, whatever.

              As for the resistor, you're just looking for the same specs. Radioshack, etc.


              Originally posted by XtremeRevolution View Post
              It does show in stock, but if you add it to your cart it shows backordered. At least it did for me.

              Thanks!

              Can anyone point me to the diagrams I need to follow to wire these up?
              Last edited by fastbike1; 02-27-2011, 09:51 PM.
              I was so much older then, I'm younger than that now.
              OS MTMs http://techtalk.parts-express.com/sh...d.php?t=220388
              Swope TM http://techtalk.parts-express.com/sh...d.php?t=221818
              Econowave and Audio Nirvana AN10 fullrange http://techtalk.parts-express.com/sh...d.php?t=216841
              Imperial Russian Stouts http://techtalk.parts-express.com/sh...=1#post1840444
              LECBOS. http://techtalk.parts-express.com/sh...ghlight=lecbos

              Comment


              • Re: on Sale - $55/pr (drivers & XO)

                Originally posted by XtremeRevolution View Post
                It does show in stock, but if you add it to your cart it shows backordered. At least it did for me.

                Thanks!

                Can anyone point me to the diagrams I need to follow to wire these up?

                Ah ok. http://techtalk.parts-express.com/al...pictureid=3425

                Comment


                • Re: on Sale - $55/pr (drivers & XO)

                  I got the holes routed for the drivers and the boxes glued up except for the face. I also cut some eggcrate foam I had and some carpet padding to fit in the box. I am using an 1-1/2" PVC plumbing pipe as the port. The interior dimension is actually 1-9/16" but I do not know what length to cut it to, It is cut to 8" right now. Once I know what length I will glue it into the recess I routed out and the trim it flush with the pipe and then use a round over bit to ease the port opening. I also used an 1/8" round over bit to ease the inside edge of the PVC pipe.

                  Any suggestions would be great. This is my first from scratch speaker build.

                  MLS
                  Attached Files

                  Comment


                  • Re: on Sale - $55/pr (drivers & XO)

                    Originally posted by fastbike1 View Post
                    http://techtalk.parts-express.com/album.php?albumid=356

                    You can always build a 12" taller tower with a false bottom to keep you volume correct. Add some mass, mount your crossover in the bottom compartment, whatever.

                    As for the resistaor, you're just looking for the same specs. Radioshack, etc.
                    Trust me, I wouldn't be here if I hadn't already found the same parts on radioshack, ebay, a variety of random electronics stores online, fry's electronics, you name it. I searched for a good 45 minutes before giving up and posting here, and with as little electric knowledge as I have, I wouldn't know what could be used to improvise.
                    Modding the Lepai T-Amp

                    Comment


                    • Re: on Sale - $55/pr (drivers & XO)

                      Can someone confirm I have the right parts for an MTM build?



                      Your Shopping Cart
                      Dayton DNR-20 20 Ohm 10W Precision Audio Grade Resistor
                      Part Number: 004-20
                      In Stock
                      $1.25 $2.50
                      2.2 Ohm 10W Resistor
                      Part Number: 016-2.2
                      In Stock
                      $0.44 $0.88
                      4 Ohm 10W Resistor
                      Part Number: 016-4
                      In Stock
                      $0.44 $0.88
                      2.2uF 100V Non-Polarized Capacitor
                      Part Number: 027-324
                      In Stock
                      $0.35 $0.70
                      6.8uF 100V Non-Polarized Capacitor
                      Part Number: 027-336
                      In Stock
                      $0.56 $1.12
                      2.0mH 18 AWG I Core Inductor
                      Part Number: 266-554
                      In Stock
                      $7.87 $15.74
                      Dayton Audio DMPC-5.1 5.1uF 250V Polypropylene Capacitor
                      Part Number: 027-423
                      In Stock
                      $2.54 $5.08
                      Jantzen 0.25mH 20 AWG Air Core Inductor
                      Part Number: 255-026
                      In Stock
                      $3.70 $7.40
                      45 Day No Hassle Return Policy Order Subtotal: $34.30
                      Modding the Lepai T-Amp

                      Comment


                      • Re: on Sale - $55/pr (drivers & XO)

                        I'm sooo proud of you guys. Two people I've never even heard of before, one asking questions, and the rest of you giving good, solid help. I won't feel bad stepping out for a few minutes anymore, looks like you guys are running on your own.

                        :-))

                        Chris

                        Comment


                        • Re: on Sale - $55/pr (drivers & XO)

                          [QUOTE=XtremeRevolution;1716264]Can someone confirm I have the right parts for an MTM build?

                          2.2 Ohm 10W Resistor
                          Part Number: 016-2.2
                          In Stock
                          $0.44 $0.88

                          2.0mH 18 AWG I Core Inductor
                          Part Number: 266-554
                          In Stock
                          $7.87 $15.74

                          Dayton Audio DMPC-5.1 5.1uF 250V Polypropylene Capacitor
                          Part Number: 027-423
                          In Stock
                          $2.54 $5.08

                          These 3 parts aren't a "horrible" match, but if you can, I'd change them:

                          2.2 ohm 10w resistor - 2.0 ohm is better
                          2.0mH #18 coil - a 2.0mH "I-core" is better (with the steel core)
                          5.1uF poly cap - a 5.6uF poly is better

                          Chris

                          Comment


                          • Re: on Sale - $55/pr (drivers & XO)

                            [QUOTE=Chris Roemer;1716270]
                            Originally posted by XtremeRevolution View Post
                            Can someone confirm I have the right parts for an MTM build?

                            2.2 Ohm 10W Resistor
                            Part Number: 016-2.2
                            In Stock
                            $0.44 $0.88

                            2.0mH 18 AWG I Core Inductor
                            Part Number: 266-554
                            In Stock
                            $7.87 $15.74

                            Dayton Audio DMPC-5.1 5.1uF 250V Polypropylene Capacitor
                            Part Number: 027-423
                            In Stock
                            $2.54 $5.08

                            These 3 parts aren't a "horrible" match, but if you can, I'd change them:

                            2.2 ohm 10w resistor - 2.0 ohm is better
                            2.0mH #18 coil - a 2.0mH "I-core" is better (with the steel core)
                            5.1uF poly cap - a 5.6uF poly is better

                            Chris
                            I thought I already had the I-core coil in my cart?

                            Anyways, here's an updated cart:


                            Your Shopping Cart
                            Item Qty. Price Total Remove
                            Dayton DNR-2.0 2 Ohm 10W Precision Audio Grade Resistor
                            Part Number: 004-2
                            In Stock
                            $1.25 $2.50
                            Dayton DNR-20 20 Ohm 10W Precision Audio Grade Resistor
                            Part Number: 004-20
                            In Stock
                            $1.25 $2.50
                            4 Ohm 10W Resistor
                            Part Number: 016-4
                            In Stock
                            $0.44 $0.88
                            2.2uF 100V Non-Polarized Capacitor
                            Part Number: 027-324
                            In Stock
                            $0.35 $0.70
                            6.8uF 100V Non-Polarized Capacitor
                            Part Number: 027-336
                            In Stock
                            $0.56 $1.12
                            2.0mH 18 AWG I Core Inductor
                            Part Number: 266-554
                            In Stock
                            $7.87 $15.74
                            Dayton Audio DMPC-5.6 5.6uF 250V Polypropylene Capacitor
                            Part Number: 027-425
                            In Stock
                            $2.63 $5.26
                            Jantzen 0.25mH 20 AWG Air Core Inductor
                            Part Number: 255-026
                            In Stock
                            $3.70 $7.40
                            45 Day No Hassle Return Policy Order Subtotal: $36.10


                            Anyone have any suggestions before I pull the trigger?
                            Modding the Lepai T-Amp

                            Comment


                            • Re: on Sale - $55/pr (drivers & XO)

                              Originally posted by Herman Trivilino View Post
                              From Post #18 by Chris Roemer in this thread ...

                              My cabinet choice: 28"h x 6"w x 9.5"d. 0.55 cf
                              A 2"d x 7" long rear vent centered 10" up from the bottom tunes this box to 39 Hz yielding an F3 of 38. I'd mount the upper woofer's center 4" down from the box top. This puts the tweeter at about 21", so theese should sound best on about 12" high stands.
                              I have a concern here. I plugged these numbers into WinISD and a .55 cubic foot box tuned to 39 hz requires a 2"D x 8.46" port length. Any idea why that is so? A 7.09" port length tunes to 42hz...
                              Modding the Lepai T-Amp

                              Comment


                              • Re: on Sale - $55/pr (drivers & XO)

                                [QUOTE=XtremeRevolution;1716275]
                                Originally posted by Chris Roemer View Post

                                I thought I already had the I-core coil in my cart?

                                Anyways, here's an updated cart:


                                Your Shopping Cart
                                Item Qty. Price Total Remove
                                Dayton DNR-2.0 2 Ohm 10W Precision Audio Grade Resistor
                                Part Number: 004-2
                                In Stock
                                $1.25 $2.50
                                Dayton DNR-20 20 Ohm 10W Precision Audio Grade Resistor
                                Part Number: 004-20
                                In Stock
                                $1.25 $2.50
                                4 Ohm 10W Resistor
                                Part Number: 016-4
                                In Stock
                                $0.44 $0.88
                                2.2uF 100V Non-Polarized Capacitor
                                Part Number: 027-324
                                In Stock
                                $0.35 $0.70
                                6.8uF 100V Non-Polarized Capacitor
                                Part Number: 027-336
                                In Stock
                                $0.56 $1.12
                                2.0mH 18 AWG I Core Inductor
                                Part Number: 266-554
                                In Stock
                                $7.87 $15.74
                                Dayton Audio DMPC-5.6 5.6uF 250V Polypropylene Capacitor
                                Part Number: 027-425
                                In Stock
                                $2.63 $5.26
                                Jantzen 0.25mH 20 AWG Air Core Inductor
                                Part Number: 255-026
                                In Stock
                                $3.70 $7.40
                                45 Day No Hassle Return Policy Order Subtotal: $36.10


                                Anyone have any suggestions before I pull the trigger?


                                Looks good to me.

                                Comment

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