I note that the slider #1 of each of the oscillators has much smaller range than slider #2, which in turn has much smaller range than slider #3.  That's fine and interesting, though I wonder if it is the same behavior as on the original 2600 (the original 2600 manual says nothing about different ranges).

However I also note that, on my unit, slider #1 on easy oscillator is somewhat differently calibrated; and likewise each slider #2 is off of the others; and similarly (and especially) each slider #3.  Is there a way to calibrate these sliders to be properly consistent?  The accessible trimpots only calibrate the oscillators proper.

It'd be fun to have the 2600 respond to velocity (or bend, or aftertouch).  But the unit doesn't these things on any jack, so the only option is to patch in data from some kind of external device intercepting the MIDI data.  YUCK!  May I suggest a very simple firmware tweak?  Can you add a firmware parameter which states that, when in Mono mode only, the Upper Voice jack outputs as CV the value of one of the following:  (1) Note Velocity (2) Pitch Bend (perhaps positive and negative?) (3) Aftertouch or (4) an arbitary MIDI CC.  Note velocity and pitch bend are particularly useful here.  Obviously in Duo mode the Upper Voice jack has an important job; but in Mono mode it's useless and can be conscripted for this task.  This small change would greatly enhance the capabilities of the machine.

There is a problem with Deepmind12.

If you switch to a different patch while playing sound, the sound may stay playing. If you keep playing it, the sound may stop in a few minutes, or it may not stop until you turn it off.

The firmware of Deepmind12 has been upgraded to V1.1.2.

I wish that Behringer will solve this problem with developing newer firmware.

So I recently added a Behringer Poly D synthesizer to my rig and it's much quieter than my other keyboards to the point where I can't get it to cut through a mix without using a boost pedal. Is there a way to boost the keyboard's volume through the system settings or parameters on the back of the keyboard? I've read through the Manuel and it doesn't go in depth. 

I'm also wondering if they sell beefier power supplies for these because the stock supply is very delicate and I'm worried about it holding up on the road. Any help is appreciated!

I ordered one through Sweetwater and really like it. Got the cutoff put up a bit from 9khz to 15khz. VCOs are all tuned properly from the back, to correspond with front.

However I’m having a very strange issue with the hold button. In basic mode with no fx or anything engaging...After pushing any notes, there is a faint sustain or hold of the note. I have API pres that have plenty of gain. So I ramped it up. Well, it showed up on my VU meters on my Rosetta. So I pushed hold on and off. The low sustained note went away! Pushed a note again, release, and there’s the very low last note I played. I put the arp on, and boom note disappears.

In short, it seems any note I push with hold off, actually holds my last note on all VCOs, but very faint. VCOs are not lit during this issue. You probably wouldn’t hear it in a mix or notice at first. But with silence and headphones, it’s a wtf is going on moment. After testing its obvious something is engaging some kind of hold all the time. That only shuts off if you engage arp on then off, or hold on and off to go away.

One user told me it’s possible VCA bleed happening. Which seems to be common with analog synths. Some need to be calibrated, if not done at factory. I’ve not messed with a VCA before. So I’m not sure if I’m turning it on the back till the noise bleed disappears. I just don’t want to effect anything else. As I can see tuning, and the Filter Cutoff on an EQ for basic calibration. Not so much with this. It’d really be going by ear.

The ARP on, seems to gate the noise even when playing a single note and not sustaining. So that is the only place, it’s not showing up as an issue.

Any other owners with this issue? Or experienced synth owners that would have an idea? Everything else with this synth is great!

Edit: Also noticed when setting any of the 4 VCOs to Pule Width or PW. It’s gone until I turn up the Pulse Width knob. Then it comes back unless set to 0. So seems it’s bleeding into all wave forms. Unless it’s in ARP mode. No bleed in ARP mode on single notes not sustaining. So that part seems fine weirdly, and not effected. It’s mostly noticeable more on high notes, and different wave forms that are brighter...well it’s way more prevalent.

I am getting no signal from oscillators 1-3. But the A-440 is loud and clear. The noise circuit also doesn't put out a signal. I've tried using the High and Low Z outputs, the headphone out, and the tiny 1/8" (CV?) audio out. None of them work. I've tried setting the MIDI channel to 1 or 2 using the dipswitches, it doesn't seem to matter. And the MIDI controller I'm using is able to function as an external MIDI controller for my DAW/VSTs. I even tried using two different 5-pin MIDI cables in case it was my controller/MIDI cables... I'm wondering if my Model D is dead?

Hi all,

I am patiently (sort of) waiting for an update on the PRO-800. In Jan they said released within a couple of months, but there has been nothing?

Also what happened to the Ub-XA?

Does anyone know anything?

thanks