So I understand currently you cannot switch from standalone and computer mode with stopping the music. I hope this is a feature becomes something Denon can implement but I heard it was a software limitation. Some people might want to hate and that’s ok but I make a lot of my own tracks and I love staying creative while Djing so I use Engine on the Prime 4+ in standalone but I also use DJ Pro because of its superior stem separation at the moment. Don’t freak I am team Denon and I hope they knock it outta the park. If I could I would keep mine in beta mode and test it all the time but I gig regularly. Before you tell me just DJ like everyone else please understand that this is such a huge feature for me. I make my own music and can mix on the fly with just vocals and mess around with stems which has changed the way I DJ forever. So is the easiest method just running another board into one of the 4 lines and keep that on LN3 for example then just dj the rest thru the Denon or do you think this feature could potentially be implemented in a better way? Thank for any feedback or any comments would love to know what other people think. I currently use an iPad Pro with DJ pro run it thru Ln3 it has Data and I have yet to have a problem since all the music is actually stored on a hard drive and the data is just incase I need something on the fly. It also is where I run my primes WIFI thru hotspot. Over 70 gigs so far and no problems yet. If there is one In the future I always have a track ready to roll on a spare channel lol
Pick one workflow or the other would be my advice, either use standalone or computer mode.
Or look at running a sub mixer between the prime 4 and sound system to fill gaps in the music whilst you reboot the machine.
It’s highly unlikely that the current method of preparing the machine for computer mode will change.
I’ve not done it for a while, but when I first got the Prime 4 (and after seeing complaints about switching) I simply plugged a backup source into a line input and played that whilst switching modes. It’s not difficult or inconvenient, and it works well enough IMO.
And sound does not cut off on the P4 with your method?
Making sure I get this
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Connect RCA (iPhone/ipad as source) to a channel on the P4
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Switch from Standalone to Desktop mode
If memory serves me, I think the P4 mixer section is akin to the X1800
When I tried it last, it was IMO good enough to provide some audio to fill in during the switch.
It wasn’t 100% perfect. There was a tiny break in the sound, but not enough that it would cause the dance floor to be abandoned or everyone to turn and stare at the DJ.
Right, ive just tested this with my phone plugged into the Aux on the Prime 2. When switching to computer mode the music is audible all the time, but it drops in volume slightly once its completed cycling into computer mode.
On the switch back it cuts out to almost inaudible then cuts back in once the cycle is complete.
Essentially music is piping through the channel at all times, what we should raise is a request for the volume to be consistent throughout.
Yes the audio is a little wonky but works. I agree pick one is the best option but the main issue is the Prime 4+ is our house mixer and so when we book a bunch of local artist they will typically use the prime or we jack into the other mixer board we have. I am the only one that uses my set up lol and I hate the wonky transition. I feel like playing my own music with guitar and using Dj pro is the funniest set for me and just don’t want to go back really lol. If we can have them even just make one of the channels static so it doesn’t get interrupted would be awesome. The microphone 1/4 in channels don’t get the wonky tone for me so I have tried that as well however the sound is not desirable as it is has a lot of treble and just is not made for the full spectrum of music. Thanks for all the replies and I agree that would be the easiest still gonna experiment and see what works best you all rock!
If the Mic inputs on the prime 4 continue to work properly while changing modes, then I’d recommend plugging your phone to a mic input instead using a cable like the one below.
Note the resistor matrix in the little diagram. This correctly converts a stereo minijack signal to a mono XLR signal.
No offence but plugging a line level device into the mic port is not good idea. You will end up with horribly distorted sound. Why not just use the rca line inputs. I have tested this & the changeover between pc mode & standalone is “almost” inaudible.
No offence, but that particular cable has resistors in line with the signal. It’s not a straight through connection. The resistors reduce the level. The sound will not be “horribly distorted”.
Also, phones typically have things called volume controls, which can be lowered.
No offence taken, yes the resistors will decrease the level somewhat, but those are actually balancing (edit - summing) resistors primarily used for making the stereo signal mono. Devices that have volume adjustment like phones, this would just be a ‘guess-timate’ on the resistor value at best. There is a drastic difference between mic & line level. I still don’t think it’s a good idea when there are already line inputs available.
Well Klotz seem to consider this a correct solution to the problem, & reading their “about us” page on their website, I’m happy to accept they know what they’re talking about regarding audio.
There’s also a similar cable available from Canford Audio in the UK. Another well regarded professional audio company. They mention the included resistors in the final paragraph.
I honestly don’t recommend it, but this is entirely your choice. If you don’t mind though, may I ask you why would you want to go this route? There is absolutely no benefit to doing it this way. Cold & ground are joined together, which negates any benefit of a balanced cable. A mic input is a high gain circuit designed for low lev inputs, this cable now requires you to reduce the input signal to try match the high gain of the mic circuit. This drastically increases noise to signal ratio, combined with unbalanced audio (which is designed to remove noise), the potential of impedance mismatch, distortion and a now summed mono signal. I simply can’t see why you would want to go this route, especially when you already have a stereo line / aux input available.
Exactly what I said earlier “Note that these cables include resistors to mix the stereo output of the device to mono on the XLR.” It isn’t there for attenuation. It’s not a pad circuit. This cable is actually designed to be plugged into a mixing desk where the input can either mic / line. Can this cable work - yes, but I would only use it plugged into a dedicated mic channel if there was no other option.
I actually agree with you @crazycraig. Always use the correct line level linput if it’s available & works.
My original reply though was to somebody stating that the audio plugged in to the Aux input on a Prime 4 degraded whilst changing modes on their controller.
I was merely offering another option that may work better in that situation via the mic input.
We are also talking about playing audio for a couple of minutes while changing playback modes. …obviously you wouldn’t use this input for your entire set.
They’re resistors. The signal on the output side will be lower than the signal going in. That’s what resistors do.
Thanks, I had no idea 
But just to clarify my point. They weren’t put there for attenuation. They were put there for summing L+R.
Fair enough, sorry I wasn’t trying to argue, just trying to back up my statement.
Considering that this particular cable has clearly been designed for the purpose of feeding the ouput of a phone (or similar) into a single XLR input - which on mixers are usually mic inputs - I think it’s safe to say there will be sufficient attenuation.
As Ian already said, why assume the manufacturer/seller doesn’t know what they’re doing?
No offence. Not trying to argue (etc. etc.) 
Group hug, everybody. 