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  • 4x100W Amp Build

    I picked up one of the TK2050 4x100W Dayton amp boards recently. http://www.parts-express.com/4x100w-...board--320-335

    The 28V PS I ordered from China came today. http://hifimediy.com/index.php?route...&product_id=71 I ordered the PS March 21st and it cost $20 to ship. This PS comes from the factory set at 28V but has a trim adjustment you could bump up to 30V. It also has an small split Aux output that measures +/- 11V. I found the board I got differs from the board on the web site. The web picture show 2 output terminals labeled Negative and Positive Out. The board I got has 3 terminals labeled Negative Out, GND Out and Positive Out. The Negative Out output is tied to the Positive Out and both measure 28V relative to GND Out. There was no documentation with the PS so I had to figure out the output configuration as well as the power input terminals whose labels are obscured by the terminal block. I chose this PS because it has high efficiency and no fan.

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    This will take a while to put together since I still need to get the rest of the hardware together. I'll certainly be looking at the cases from another recent thread.

    Ron
    C-Note Iron Driver Build
    The Cherry π's

  • #2
    Re: 4x100W Amp Build

    Sub'ed ill be looking forward to reading this and hearing your results. Seems like a mighty cheap amp if it actually puts out what it states.
    My Build Thread's
    Carrera's / Finalist TL's / Speedster TMM's / Speedster MTM Center / Overnight Sensation Surrounds

    Comment


    • #3
      Re: 4x100W Amp Build

      Hi Ron: How long did it take to get the PS from china?....

      Regards
      Bob
      NLA

      Comment


      • #4
        Re: 4x100W Amp Build

        Does that amp run off of straight DC power or is it +/-28Vdc?

        That is a slick PSU! Are those 317/337 regulators?

        Comment


        • #5
          Re: 4x100W Amp Build

          cool
          Ron. What will you do with it?
          " To me, the soundstage presentation is more about phase and distortion and less about size. However, when you talk about bass extension, there's no replacement for displacement". Tyger23. 4.2015

          Quote Originally Posted by hongrn. Oct 2014
          Do you realize that being an American is like winning the biggest jackpot ever??

          http://www.midwestaudioclub.com/spot...owell-simpson/
          http://s413.photobucket.com/albums/pp216/arlis/

          Comment


          • #6
            Re: 4x100W Amp Build

            Originally posted by tc View Post
            Does that amp run off of straight DC power or is it +/-28Vdc?

            That is a slick PSU! Are those 317/337 regulators?
            From the link in the OP:

            Input: 110VAC
            output: 28V DC (+-10%)
            Dimensions: 100x100x36mm

            The connexelectronic smps is newest generation smps and benefits from a small form factor, low weight and a high efficiency (up to 93%).
            It can output 300W continous and 400W peak power, and can be adjusted +- 10% from its stock voltage. It also features a auxiliary power output which outputs around 10.5-13V, (proportional to main output voltage, 2/5 for 28V version (28V/5*2=11.2V) and 2/7 for 38V version(38/7*2=10.9) . The max. continuous current for the aux output should not exceed 500ma, and the total capacitance of the circuits connected to the aux output should not exceed 2200uF (otherwise the fuses might blow).


            These are the semiconductors.

            Click image for larger version

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            Ron
            C-Note Iron Driver Build
            The Cherry π's

            Comment


            • #7
              Re: 4x100W Amp Build

              Originally posted by [email protected] View Post
              cool
              Ron. What will you do with it?
              Drive the mids and tweeters in the Cherry Pi's.

              Ron
              C-Note Iron Driver Build
              The Cherry π's

              Comment


              • #8
                Re: 4x100W Amp Build

                Originally posted by Ron_E View Post
                Drive the mids and tweeters in the Cherry Pi's.

                Ron
                I should have guessed that. Would love to hear them again. Your house?
                " To me, the soundstage presentation is more about phase and distortion and less about size. However, when you talk about bass extension, there's no replacement for displacement". Tyger23. 4.2015

                Quote Originally Posted by hongrn. Oct 2014
                Do you realize that being an American is like winning the biggest jackpot ever??

                http://www.midwestaudioclub.com/spot...owell-simpson/
                http://s413.photobucket.com/albums/pp216/arlis/

                Comment


                • #9
                  Re: 4x100W Amp Build

                  Originally posted by [email protected] View Post
                  I should have guessed that. Would love to hear them again. Your house?
                  I'm retired now so just PM me anytime you'd like to arrange a listen.

                  Ron
                  C-Note Iron Driver Build
                  The Cherry π's

                  Comment


                  • #10
                    Re: 4x100W Amp Build

                    Originally posted by robertcottiers View Post
                    Hi Ron: How long did it take to get the PS from china?....

                    Regards
                    Bob

                    It was ordered March 21st so less than 2 weeks. The first tracking report I saw on the USPS site was it's arrival in Kentucky on the 30th.

                    Ron
                    C-Note Iron Driver Build
                    The Cherry π's

                    Comment


                    • #11
                      Re: 4x100W Amp Build

                      I just ordered a case from Italy. http://www.modu.it/galaxyeng.html 330mm x 170mm x 80mm with the 10mm black anodized face option. $103 US delivered in 4 to 5 days.

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                      Ron
                      C-Note Iron Driver Build
                      The Cherry π's

                      Comment


                      • #12
                        Re: 4x100W Amp Build

                        Sub, thanks for sharing, I will be following closely.

                        Comment


                        • #13
                          Re: 4x100W Amp Build

                          I got out some clip leads and fired up the amp with the PS. I wanted to make sure the amp worked and all four channels are good. No thumps at start up and shut down and the fan is pretty quiet. Running stereo with a Sansa MP3 player and some little Radio Shack Optimus speakers everything is cool to the touch.

                          Ron
                          Last edited by Ron_E; 04-16-2014, 12:43 AM.
                          C-Note Iron Driver Build
                          The Cherry π's

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                          • #14
                            Re: 4x100W Amp Build

                            The case just got here from Italy and it looks good. The optional 10mm front panel is very beefy.

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                            I have the rest of the hardware on order from ApexJr.

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                            Ron
                            C-Note Iron Driver Build
                            The Cherry π's

                            Comment


                            • #15
                              Re: 4x100W Amp Build

                              Case assembly went quickly. Everything fits together nicely. I'm going to have to find a way to de-rattle the tops and bottoms. They're only fastened on the short ends and the centers are free to buzz. It's going to look good I think.

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                              Ron
                              C-Note Iron Driver Build
                              The Cherry π's

                              Comment

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