Is the read me in the zip file?
Also how easy is it to get back to the original firmware?
And does the alt firmware make use of Poti?
Thanks!
Funny to see this thread popping up now, I’ve been seriously considering a batumi for the last weeks to add some easy to control free running modulation to my small rack. Really like that it has sine outs (there are quiet a lot of modules that don’t have that for some reason) and that it has multiple outs in general. Also really like that you have to option to attennuate within the module itself, although I’m not sure I’ll use that much since I’m not a fan of overloaded/multi-mode user interfaces.
I guess the main downside I see is that despite it being pretty small for four LFO’s it’s still 10hp which is quiet big compared to the case (62hp) and that it doesn’t really go into audio range. Or does it with external voltage inputs? Need to check the manual.
Is there anyone who doesn’t like their batumi or has any things about it they don’t like?
If not batumi which alternative module would people suggest?
It does go into audio range, if that’s what you’re asking and it’s pretty nice. Plug a v/8 into the freq input.
I never really loved mine but I think that’s because I don’t use a lot of straight LFO modulation (preferring random or more variable waveshapes (and I found the advanced user modes more to remember than I wanted to have to remember). I really enjoy tides (and JF) for Batumi-ish needs. I enjoyed the way these modules interrelate the outputs more.
Batumi does exactly what it says it does though and felt nice to touch! I actually liked it most when I at least used part of it as a clock (using square outputs).
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you would just reinstall the factory fw the same way. but re: the wavebank selections, its just a matter of a long press of the button to swap between random bank and the stock one
it does - you would then use poti to swap between the different flavors of random available to you at the ASGN output instead of the usual waveform selection
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You can not attenuate in the module with stock firmware.
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I also always self patch Batumi. doing so results in interesting shapes without needing alternate firmwares. I personally avoided any other firmwares since Batumi’s simplicity is one of its strengths. you get what you see on the panel (granted, there’s zoom, but I avoid that as well).
you can get audio rate and it will sorta kinda track for ~2 octaves, but it’s perfect as an LFO specialist.
bonus: upgrading the sliders with improved caps can be fun.
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My understanding is Xaoc got tired of answering support questions about the expert firmware, which they never officially supported.
It’s been linked up-thread, but I think it’s worth looking at the individual wavebank firmware: http://voltexture.net/batumi-individual-wavebank-firmware-v1-0-released/
It extends the functionality of the expert firmware a fair bit. I preferred the original firmware myself, but if you’re looking at the expert firmware the individual wavebank is basically more functionality without too much more cognitive load.
OT
In a side note, I’m always glad when a module I’ve sold gets a new home and gets used. Makes me happy 
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Tomorrow ill get my first xaoc modules, batumi and zadar
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Not sure if this is the best place to put this, but here goes…
I have and like a Batumi but I am still unsure as to which modules have unipolar inputs and which have bipolar, recognizing that some modules have both.
Is anyone aware of a master list somewhere that would indicate such things?
Thanks!
I recently picked up a Batumi and decided to return it. One of the factors that bothered me (and I know this will sound silly) is that it didn’t give me good visual feedback about what was happening with each output. The output LEDs are, I believe, tied to the sine wave whereas I mostly used it for square and saw and it was really throwing me for a loop to have the visual and actual output be decoupled.
I also wasn’t wild about how it handling phase syncing when stopping and starting the clock. I was able to work around this when working from my DAW but now that I’m using Pamela’s New Workout as a master clock, it was a little irritating.
Since then, I started looking at Intellijel’s Quadrax as a possible replacement and I think it has a lot going for it. The catch is that it does not yet have great LFO syncing with respect to phase resetting. I reached out to one of Intellijel’s R&D folks on the MW thread and suggested adopting the MI Tides logic for handling phase reset and clock start/stop. The R&D person suggested that they were into this idea and would take a look at it once some other priorities were handled first.
So if you aren’t in a hurry, Quadrax could one day become a great alternative to Batumi that also provides some more advanced features (envelopes and chaining of segments) that justify the larger footprint. You’ll lose the multiple waveform outputs per channel, but it seems like an okay trade-off for me.
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Thanks for the info!
AFAIK it only goes up to 500Hz, right? And that’s only with external voltage input.
What I’ve seen from Tides it seems like a very nice module and I really like my JF but I simply don’t have enough space for them in this tiny case In a similar vain I think 4 outputs/LFO’s is probably a better amount than 6 for this tiny a case (although in this case more is always better I guess 
)
Thanks for this, very good point, didn’t think about it. It might’ve made more sense to add LEDs to all outputs, although I can also imaging that might be a bit of sensory overload.
Can you explain this a bit more? What didn’t work exactly?
I looked at Quadrax in the past but went for the “old” but much more hands-on Quadra instead because overloaded/multi-mode user interfaces without a screen don’t really work for me, especially for settings like these which I’d probably rarely change.
What’s the focus of your little set-up? What are you hoping to modulate and what are your priorities in terms of versatility, hands-on/tactile, Screens/no screens and total number of related outputs? You might get far with a Ochd or a mini ornament and crime in Quadraturia mode - or that might sound horrible to you. If you are looking for general versatility, a stages might give you enough lfos and also a ton of other options?
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I don’t think such a list would exist. You are best off reading the specs of a module you’re interested in. Most modules will indicate their voltage range. If it’s positive and negative, then it’s bipolar. Envelope/function modules are typically unipolar.
Some modules allow for offset/attenuation control, which allows you to move a voltage into negative or positive range (this is why Samara is the perfect pairing for Batumi). And some modules (qubit nano rand for example), allow you to switch the range from unipolar or bipolar.
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Some more context here (and in previous comments): Batumi
So there are two issues with LFO syncing that I have been on a quest to resolve. It seems that most people don’t really care about this so it’s likely just me being neurotic. It’s sort of my specialty.
The first is how the LFO handles stopping and starting the clock source. Batumi keeps running the LFO in the background and when the clock starts again, it immediately recalculates the tempo and tries to get back in sync. This is probably okay in many cases, but if you’re doing a recording where you need to start the clock and have predictable results (like trigger percussion), this can be problematic.
The second issue has to do with phase syncing on LFO modules that have don’t have a 1:1 relationship between clock source and LFo cycle time, e.g. those with a clock divider/multiplier such as Tides, Quadrax, Modbox). Batumi just sidesteps this by forcing a 1:1 relationship and making the sliders inactive when in free run mode while synced.
At any rate, I think Tides has the most elegant solution to the above issues because it lets the LFO pause when it the clock stops and then picks it back up at the previous tempo when the clock resumes. Right now Quadrax has probably the worst implementation of any of these modules because the LFO phase is totally random and it simply sets the LFO rate based on the incoming clock.
If Intellijel can get the Tides-like logic implemented in Quadrax it’s going to be an absolute killer module, but I suppose it’s too early to get excited 
Seems like a list like this could exist/would be useful. It might not capture everything but it could help people even to have one place to go to get basic expected input and output voltage info. It would be a nice set of columns to add to modular grid at least.
I like the way MI lists the input and output specs for each module on their page.
(e.g. Tides:
- All inputs: 100k impedance, DC to 7.8kHz.
- SLOPE , SMOOTHNESS , SHAPE , SHIFT/LEVEL input range: +/- 8V.
- V/OCT input range: -3 to +7V.
- TRIG and CLOCK input range: 0 to +8V, protected.
- 16-bit CV capture.
- Internal processing: 32-bit floating point.
- CV Outputs: 14-bit, 62.5kHz (31.25kHz in different frequencies mode).
- Output levels: bipolar +/- 5V for cyclic signals; unipolar +8V for gates and envelopes.
)
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Small victory today — 1.5 hp Poti build. Originally planned on picking up a Pequeño Interruptor (1hp Poti) but after measuring the Intellijel palette 104 case, I found an extra .5hp and it has been bothering me… I can’t be the only one like this?
Anyway, the build was straightforward and the advantage of having some tall switches makes it super playable, which has been really fun at audio rate!
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Hey just wondered where you picked these up?
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