Hi everyone,
Does any owner of OB-4 noticed additional sounds while playing lower frequencies sound? I have tried playing short synth sounds using both line in and bluetooth and the problem persists. It seems to dissappear if sound is of high enough frequency so I guess it must be something with bigger speakers.
You can try it by setting up OP-1 or OP-Z to short sound with no release and if you play it for a very short while you should then hear a bass sound response to that sound which is generated by OB-4 itself it your unit behaves as my own. So my main question is has anyone else noticed such behaviour? I guess I should contact TE right away but I am curious if it is only my unit.
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Yes! There is definitely some sort of low frequency gurgling coming through on every mode on mine. It doesn’t get louder when the volume is increased but it’s there. I keep meaning to try and do a decent recording if it (on hols at present).
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Do you see a red led light up at the input of the Ob-4
it can be overload on input.
If it is this. Reduce the level of the instrument before it reaches the input of the Ob-4.
It is not distortion on input as it affects each and every mode. You can even hear it in metronome mode. It is noticeable the most if the the speaker is not playing that loud (like 20 and below in orthoplay app).
I intended to use the speaker primarily for music making and during the night so it is important for me that it will reproduce the sound as closely to source as possible and at every volume setting.
It is a beautiful piece of gear so I really hope that this problem is constrained to small percentage of units (or solvable through software update) as it would be a lifelong keeper for me if not for those additional sounds.
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Exactly. At the lowest volume level the noise is louder than what’s being played. And that commodore 64 loading random gargling I’ve found not that relaxing to fall asleep to!
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That sounds like a defect. Contact TE. And they will help you out.
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like this K?
what’s the latest with your’s?
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Yep, this is the same thing that both units that I checked exhibited. It was especially pronounced on lower volume levels. Unfortunately I returned both of them so can’t help with telling what is the progress on that but I hope they will fix it with firmware in the future as I would like to rebuy OB-4 as otherwise it would be perfect speaker for me
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Thats the same like on my OB-4. The support told me that it should be fixed in the latest firmware 1.4.11 or so. But the firmware didn’t fix it for me so i‘m still waiting for another update.
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Really? That’s brilliant news! It shows a) they recognise the problem, and )b it can be fixed via an update.
Thanks Y’all 
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…and that’s a +1 for me.
The OB-4 was the one and only TE piece of gear that has no issue. But I’m guessing somewhere in the last three updates, that noise came into play and ruins it.
What did you guys ended up doing ? I’m thinking of buying a MiniRig and keep this one around as a last resort option.
But man…what a crappy sound.
I’m bummed.
Bummed and really done with TE for now.
Never a brand has been such a let down. Not a single piece of gear was flawless. SMH.
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This issue is so annoying and drives me crazy. TE confirmed that its a FW issue. One month ago i ordered a new OB-4 just to see if the issue is there too and it was. Had to return it straight away. @jacobs can you assist here anyhow?
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This is unacceptable.
I just don’t get how this kind of stuff is acceptable by any means.
At that price point, for that long? Gotta say TE keeps on dropping the ball for me.
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firmware 1.6.8 was just released with improvements in this area
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it sounds more balanced/clean but punchy.
i can def. hear other parts more defined, somehow not as clustered but ever since OB-4 is the one and only Bluetooth/line speaker one should own.
really love to rewind my synth sessions the day after and listening to the tape recording!
I would love some more controls for the tape track to start from the beginning without „analog“ rewinding or a new section within the App to access the 2h tape file to chop/loop re-arrange or AI mastering tools/stem splitter things 
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Thanks so much for this update. The subharmonic distortion artifacts are not audible anymore.
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