Blog Forums DIY Speakers and Subwoofers Voxel-Sub-Passive Build

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    • #24686
      Steven M
      Participant

      So I added a pair of Voxel Subs to my Mini Dina build for a desktop speaker set up. I’m pushing them with one of two different amps, the first being a Up2Stream Amp 2.1 (50W x2 output with a 100W sub output) and the second a Lepy LP-168S (45W x 2 + 68W x 1RMS).

      For some reason the sound cuts out if I push the volume up on either amp. It cuts back in when I lower the volume.

      Anyone have a guess as to why this might be happening.


      Steven Monczka
    • #24735
      123toid
      Keymaster

      It usually cuts out when the impedance is too low. THat is weird with either of them, as the subwoofer should not be the issue. However, if you did not run a capacitor on the tweeter, that might be the issue. One way to check it to run just the subwoofer and see what happens.


      • #24743
        Steven M
        Participant

        It is the sub that is cutting out. I’m using a <b style=”font-family: inherit; font-size: inherit;”>TDA7498E Bluetooth Power Amplifier Board with Subwoofer 2.1 Amp for testing. It’s a cheap little amp but has separate volume and crossover controls. When I push the sub crossover it cuts out. P.S. Yes I did run the caps on the tweeter this time. Thanks for the help!


        Steven Monczka
    • #24747
      123toid
      Keymaster

      😁 That’s great to hear that you’re running the caps. As far as the issue goes, you might just be running out of power. What kind of power supply are you running?


      • #24799
        Steven M
        Participant

        It was the power. I’m using a variable voltage power supply and didn’t notice that it was set to 12V and not 24V. Thank you!


        Steven Monczka
      • #24805
        123toid
        Keymaster

        Excellent! So glad you got it figured out!


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