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TPA3116 50wx2 Bluetooth Amplifier A$8.19, DIY Bluetooth Speaker with LED Water Flowing Light A$24.75 +A$6.60 Delivery @ICStation

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TPA3116 50wx2 Bluetooth Amplifier A$8.19, DIY Bluetooth Speaker with LED Water Flowing Light A$24.75 +A$6.60 Delivery @ICStation
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Store RepICStation on 29/04/2021 - 10:25 icstation.com (245 clicks)
Last edited 29/04/2021 - 17:36 by 1 other user
Electrical & Electronics Amplifier Bluetooth Amplifier Do It Yourself

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ICStation, China
ICStation, China

closed Comments

  • beaker on 29/04/2021 - 10:51

    I have a couple of the little amplifiers (bought from aliexpress) and i'm have been quite impressed for the cost and size.

    I have one running with some small powered bookshelf speakers after the internal amp died with a 12V 3AMP powersupply and they can get to decent volumes without distorting.

    • Thrifty McGifty on 29/04/2021 - 10:57

      I used a TPA3116 and made my own Bluetooth speaker out of some old stereo speakers. I now have a boombox-style Bluetooth speaker that will blow away almost any other for about 16 hours.

      • banana365 on 29/04/2021 - 11:32

        What do you power it with?

        • MasterScythe on 29/04/2021 - 12:23

          18650's in mine :)

          • Thrifty McGifty on 29/04/2021 - 12:30
            +2

            @MasterScythe: Yep, salvaged 18650s x4. I put a BMS on it. Actually, I used a separate Bluetooth module because the amp I got didn't have it built in.
            I found 2x Sony 100W speakers on a footpath cleanup. Hacked the speakerbox to hold all speakers (4 cones in total), powered from an old laptop power supply.

  • gomango on 29/04/2021 - 11:13

    Does the Class D version have noticeably better sound quality?

    • Thrifty McGifty on 29/04/2021 - 12:31
      +1

      I think they're all Class D, the difference is in features (e.g. memory card support)

    • cristtos on 29/04/2021 - 13:07

      My understanding is that D Class is most efficient in converting the electrical power to sonic power… Works similar with the pulse width modulation for motor drivers.
      my2c

  • whats up skip on 29/04/2021 - 12:45

    I am surprised there don't seem to be many of these modules around that are dual channel, plus third channel for sub woofer.

  • gomango on 29/04/2021 - 13:22
    +2

    Is this rated at 50w RMS or 50w peak power?

    • Exprise on 29/04/2021 - 13:27

      Please let me know when you find out

      • Store RepICStation @ ICStation, China on 30/04/2021 - 17:38

        50w RMS

    • Store RepICStation @ ICStation, China on 30/04/2021 - 17:38

      50w RMS

  • zzyss on 29/04/2021 - 14:37

    Other than price, is there any reason to get an IC like this rather than something like a Douk Audio/Nobsound NS-10G or something?

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