The discovery thread.!Rhythmos SD7, 4BA+1D hybrid by peter123 pg2328

  1. loomisjohnson
    Just got the Advanced Sound S2000 ($19.99 on Massdrop), which I bought on a lark. Pretty impressive on first listen, with one of the most comfortable over-ear fits I've encountered, tho the stock tips don't seal well. Not detail monsters, but imaging is really, really good.
    PlantsmanTX and thebigredpolos like this.
  2. Dsnuts Contributor
    Happy New Years to everyone in the discovery thread.

    I think for me one of the bigger surprises from recent purchases was the Rhymos earphones I got. I have them in my ears and I know there is a newer updated version that recently came out with 7 BAs called the SD7 plus. The price was right. I ended up getting them. Will post some impressions of how they compare to my white hybrids. Starting 2018 with a bang!

    Last edited: Jan 2, 2018
  3. superuser1
    Happy New Year and indeed it is a bang! Hope this year brings in many more iems than the last :wink:
    Dsnuts likes this.
  4. HungryPanda
    I just received the Rhythmos Super SD7 and I'm sure it is 4 BA & 1 DD in each earpiece
    Dsnuts likes this.
  5. Lurk650
    Lol just Googled and you are correct. Not sure where Ds got 7BA from
  6. superuser1
    Its probably this one. It says 7 BAs

    HungryPanda likes this.
  7. HungryPanda
    Nice SD7 Plus, no DD driver then
  8. vladstef
    Maybe it's this one?
    E: Sorry for posting it again, page didn't refresh properly.
  9. Lurk650
    Ahh so SD7 Plus. The way these Chinese companies name their gear is mind boggling lol
  10. HungryPanda
    As long as they keep pumping out nice earbuds and iems I'm more than happy
  11. superuser1
    I don't think the SD6 has any dynamic drivers either. I maybe totally wrong but i have a strong feeling it has 6 BAs.
  12. Dsnuts Contributor
    Ya the whole Rhthmos naming What the hybrid should be called SD5 due to how many drivers. SD6 for the 6 BA black one and SD7 for the new 7 driver BA earphones. Or that would make sense.

    @HungryPanda Burn in my friend. You will be able to tell the BAs are compressed on open listen. Don't bother with that Janky cable either. I am sure you have plenty of nicer cables to match with them.
    Last edited: Jan 2, 2018
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  13. Dsnuts Contributor

    I assume the SD7 plus is clearly V shaped signature. But I actually want a V shaped signature for an all BA earphone due to the weakness BAs have in the bass department.
    Should be interesting to see how these turn out.
  14. vladstef
    Someone correct me if I am terribly wrong:
    To me, looks more like a mild W shape with ok-ish treble extension (although it will most likely have more than it appears on the graph). I really like this graph, at first it appears frantic but look at the Y, everything up to 10kHz is within 10db of difference - respectable honestly. They could've used a different scale for Y and this would look much much flatter. I'd go as far as saying that this is just a bit more exciting than something flat in the bass, vocals might sound ever so slightly thinner than normal but it could improve perception of clarity.
    E: I actually just remembered that I have an IEM with similar 2k bump, HiFiMAN Re-400 - and this one has a very healthy sounding mid-range so I wouldn't worry a single bit.
    Last edited: Jan 2, 2018
    Dsnuts likes this.
  15. Dsnuts Contributor
    Based on the SD7 hybrid which I am listening to as I type. And going off of the sound signature that are on these hybrids. The mids are actually done really well on these and has a layering/ imagery that a lot of my other earphones lack. One thing that graph doesn't show is how dimensional the sound is. Something that I absolutely love about the SD7. Especially in balanced mode. I think in single mode the mids arent as forward but sound is still very dimensional. In fact I would take these SD7 hybrids over the more expensive one more quad which try to do the exact same thing but does not have the same treble extension or the bass extension of the SD7 hybrids. It is everything the one more quad should have been imo.

    I like that the bass on the all BA SD7 plus is emphasized. A bit more oomph on an all BA earphone is not a bad thing. I am sure it will not have the same impact as the hybrid SD7 but should make for a solid bass end. If that graph is true it looks like it has minimal roll off in the sub bass which is excellent for an all BA earphone. One of the remarks on the earphone on Aliexpress is that it has good bass. Which I would imagine looking at that graph.

    Another interesting aspect of the SD7 hybrids. I mentioned in an earlier post that I was using complys to soften the highs. Don't know what happened between then and now but I am now using silicones for them and the highs are just fine. Looks like I underestimated the burn in for the earphones a bit. They do require some time for the sound to get right it seems.
    Last edited: Jan 2, 2018

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