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Helium - a true micromonitor

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  • I absolutely admire your knowledge and i understand the use case of monitors, however would a similar but more basy build be possible in not much bigger size? Im in search of a speaker build i would use for fun music at my workplace. We usually play trending music so a basy speaker wouldnt hurt. Any advice if this build could be modified or is there perhaps another build similar to this one i could find? I would limit the size to about 4 liters. Thank you very much in advance.

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    • The Helium could be made a little more bassy by moving to an MTM version (using the 8 ohm ND91, which can be tuned for a little more bass extension). Speakers like the Overnight Sensations or my Lithium project are about 4.5 liters and offer considerably more bass than the Heliums. In 2017 at InDIYana, there was a nanotech challenge that had a size limit of 3 liters. There were several designs that had impressive bass performance. If you search for InDIYana 2017, you can find some descriptions. I entered the Rhodium design, but it includes a Ribbon tweeter and is probably overkill for a "fun work speaker" from a cost perspective.
      Keep an open mind, but don't let your brain fall out.

      Sehlin Sound Solutions

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      • Thank you Scott! I will search for InDIYana 2017 and see if there is anything that would suit me better. Any recommendations on which build to look for? I would like it to sound very good, we are kinda tired of cheap bluetooth speakers. Thank you very much.

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        • I have built the Lithiums and several of the Heliums. Love them both.
          I would build the Lithiums again if the size works for you. They are a very good sounding speaker and have good bass if fairly close to the wall.
          Andy.

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          • I just replaced the fixed cables with binding posts on my speakers. Can someone recommend a speaker wire gauge? I need about a 2.5m run and I understand that the speaker impedance is low at about 5ohms IIRC.

            How about 14 awg?

            Thanks
            Last edited by Dunk_c; 12-03-2019, 04:05 AM. Reason: Update

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            • 14ga is plenty large, 16 would be fine too.
              Electronics engineer, woofer enthusiast, and musician.
              Wogg Music
              Published projects: PPA100 Bass Guitar Amp, ISO El-Cheapo Sub, Indy 8 2.1 powered sub, MicroSat, SuperNova Minimus

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              • Thanks, just wasn’t sure about the current demand of low ohm speakers
                Last edited by Dunk_c; 12-04-2019, 03:32 PM.

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                • Have experimented with a few different iterations of the Heliums previously and loved them for their purpose.
                  With some modifications on another project, I've got a couple pair of 91-8's looking for work.

                  Considering giving a go at a Helium TMM design.
                  Opening up some space with a mini tower setup 2.5 way.

                  Worth the trouble?

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