DDJ-FLX4 & Djay Pro AI

the solution as typical, was always the simplest. it connected after rebooting iPad


I would consider using a powered USB-C hub as well. This way you can charge the iPad while using the controller. The controller connected directly to the iPad will drain your battery much quicker than normal.

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the FLX4 has 2 usbc ports, 1 to connect to source, the other to power, which permits pass through charging of any device connected to the source port. that’s the benefit of usbc, right now my iPad is charging while connected to the deck because the other usb port is connected to a charger.


Algoriddim released the 4.1.7 update today with official support for the FLX4. Anyone with a FLX4 give this a go yet?


What a coincidence … :wink: I just tried this and can’t say anything negative. However, especially with Smart CFX, it is not clear to me what exactly happens there and especially if and how the effect can be changed. Shift & Smart CFX anyway, as it is the case with Rekordbox, does not change anything except that Smart CFX is turned on or off.

Short Update:
In the meantime I found out that Smart CFX works in conjunction with the 3rd manual FX. Depending on which direction the knob is turned, one of two effects is activated in addition to the filter. However, I have not yet found an option to change these effects. Maybe someone from the support team can comment on this, because if you could use this for other functions as well, that certain functions can be triggered depending on other buttons, I’m sure many other nice gimmicks would be possible.
If Smart Fader is activated, the respective channel is faded out with an echo effect.
Overall, I find the implementation of just these new features quite well solved. Surely all this does not work as it runs with Rekordbox, but that is certainly also to some extent dependent on the internal programming and wiring in the controller itself.


I see Pioneer have released new firmware for the FLX4 that suggests additional support for Djay (link is for Max version)

I can recommend to install the new Rekordbox app on the iPhone or iPad. It checks whether the firmware of the Flx4 is up to date and performs an update if necessary. I find that quite well solved by Pioneer, because this is much easier than a manual update via the computer.

Because of algoriddim’s policy of not posting progress of pending firmware updates I decided to return my FLX4 after only 1 day because a long trip I was about to undertake would have taken me past the Amazon return date. This is so frustrating. I did not want to commit to a deck without the ability to test dJay pro AI official performance. Now Amazon tacked on $20 to the price. Oh well….

@Michael_Wisniewski is stems implemented natively in the latest official update or do neural FX have to be mapped? Does the CFX knob trigger a drop-down FX menu on Mac like in Rekordbox? What do you think of the smart fader implementation? I see @Chris_R stating that it triggers filters and 2 FX
What about these issues that you pointed out earlier, have you been able to check out the official implementation yet? (I decided to return my FLX4 because I had no idea when the update would drop and a planned long trip would have taken me past the return date of the unit, hence I am unable to test drive this update).

Great information as always!! Thanks a lot!! I just got FLX4 and noticed two things(so far).
As you said, the Smart Fader, the deck transitions from fades out with an echo effect but it doesn’t seem like works the same as Rekordbox does though. (Rekordbox also matches the BPM automatically to the deck that gets transitioned to). I tried to find the mapping in the settings menu but when I hit the smart fader button on the controller it doesn’t show the corresponding action in the function list.
I can get my iPad(iPad mini 5th gen) connected to FLX4 only via Bluetooth. I tried USB C to Lightning cable (iPad mini 5th gen still has the Lightning port) but no luck. I also noticed when my mobile devices are connected via Bluetooth, the controller doesn’t lit until I switch the power plug back into the “device connection USB port on the controller” instead of the power input USB port.
I don’t know if it is only me but hopefully the next update resolves these issues soon.

For some reason, on my iPad mini, Djay Pro shows way better performance than Rekordbox mobile version. It loads tracks way faster and Rekordbox still can’t get tracks analyzed for some reason.

Again, thanks for the info. I still personally prefer Djay pro over Rekordbox mobile.

Btw, is there any way to change the track order manually on Rekordbox mobile? I love the way Djay pro let us move around (up and down) by dragging tracks on the fly in the track list but I just don’t see anything like that in Rekordbox.

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Excited to dig into this new release (after a current biz trip). Very curious to see which features were implemented and if any new XML commands were exposed.

Re: Neural Mix
The (unofficia)l mapping has Neural Mix mapped to the Pad FX2 buttons, wondering if they mapped Neural Mix to anything in the official version?

Re: BEAT FX 1&2
Did they get this option to work? Can you execute FX on both decks?

Re: Smart CFX
When this is engaged - do the Filter knobs change parameters on the FX - or is it just applying the Filter like normal?

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Neural Mix:
This is not present in the official mapping. Probably also because there are no dedicated buttons for it. So the only way is to replace other functions with it. For me, it’s on Sampler, because I don’t use it significantly. And unlike Pad FX2, that’s a little more direct to get to because it doesn’t require pressing the Shift key to activate that. Additionally, I put a toggle on both channels to switch between EQ and Neuralmix (Shift & CUE).

Deck FX:
Maybe I didn’t understand the problem, but it works to use the effects on channel 1, channel 2 or both channels depending on the position of the switch. This position just needs to be set accordingly when mapping.

Smart CFX:
As briefly described above, this adds one of two effects to the filter, depending on which direction the knob is turned. The parameters are also changed in each case.
I would actually be interested to know how this is implemented internally, because I think I would like to use this in a similar way elsewhere.

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Cool! It will be interesting to find out how that works.

Most likely this is done internally in the XML file and not directly accessible via the MIDI learn tool.

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Otherwise that would be too easy :wink: But that should not stop us! :+1:


It’s possible that support for the new DDJ-FLX4 could be added in the future through updates or new software releases.

@Phil0110 read above. It’s already supported.

Hi! @Slak_Jaw I saw your example with the iPAD is very useful. I’m buying tomorrow the DDJ-FLX4. I want to connect my iphone via BT and/or cable. How do you do that? Is the same as for ipad? I understand for BT how to look but how about when you connect the iphone via USB C?

Is there an additional software to download?
Otherwise for MAC I guess you just link it via USB and then change the settings with audio right? Thanks a lot for your help!

@Marzio_Veno I don’t have a FLX4 so I can’t say for sure, but I believe you can connect your iPhone direct to the unit with a genuine Apple USB-C to Lightning cable.

The other option would be to use a genuine Apple Lightning to USB 3 Camera Adapter and a USB-C to USB-A cable.

Unless you already have the camera adapter, option 1 would probably be better.

I’m sure the FLX4 manual will have detailed instructions for this though.

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Thanks a lot! Unfort he got it only for the other softwares as Serato etc so I’m trying to mocking it for Djaypro. Since the update is very new 30th March I believe we will find more youtubers doing it for us soon. anyways I will test it and if I find more info I will report it! Thanks :slight_smile:

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