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Full Version: DJ Controller to DAC (or something?) to Phantom 1 pair
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As title says, I'm trying to figure out the best (if that is such a thing) way to use my phantoms in direct optical mode for low latency, for use with a DJ controller, AND Bluetooth. 

I know I can use TOSlink adapters as noted on other posts here from a while back, but I'm not interested in the switch/reset procedure between direct optical and Bluetooth modes when I'm done mixing  - I want to be able to play from my mixer, then switch to Bluetooth painlessly.  

So, apart from getting rid of my phantoms and going for a wholly different setup, I'd like to get an idea if it's possible to use some kind of DAC that can take the output from the controller, AND handle wireless input from my devices (not simultaneously of course), while outputting to the phantoms in low latency direct optical mode. 

One thing im concerned with is lack of protection. As I understand it, direct optical leaves no overload protection for the speakers themselves, so they could be overdriven. 

Is there any way to mitigate this?
Is there any DAC/preamp setup that would look something I'm assuming like this?: DJ controller/mixer ->DAC->TOSLink (if no optical out) -> phantom?  While also allowing, for when I'm not mixing, this setup?: Bluetooth -> DAC -> TOSlink -> Phantoms ?

Many thanks in advance. This has me pulling my hair as most people I talk to say just dump the devialets, but the counter options offered are basically the same thing but different.
As I understand the speakers still have protection against self destruction. You could use an optical switch with your mixer as one input and a BT dongle with optical output as the other.
You'll need an ADC(analogue to digital converter) to convert the mixer output to digital. CYP has a couple of affordable solutions, I would have bought an old RME ADI-2 AD/DA or similar.
You need Avantree Oasis Plus BT transmitter with optical in/out: https://avantree.com/eu/oasis-plus-bluet...ter-for-tv

Equip it with high-end optical cables and you are done.


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So this looks like a great little fix - but I'm wondering about stereo L/R channels. 

With the Avantree, my stereo output from the controller will be combined into mono output from the transmitter, would it not?

I would have to use a TOSLink adapter on both ends (merge input, split output) to drive both speakers, right?

Am I correct that I would lose stereo setup in this case?

I wonder if there is a transmitter that accepts stereo input (optical, or *ideally* XLR), and stereo optical output
The signal will not be combined to mono. The toslink input would accept 5.1 if you feed it with such signal. You'll need an optical splitter on the output and send the splitted LR signal to the speakers. In the web interface you'll choose which speaker is left/right.
(19-Feb-2023, 11:28)ragwo Wrote: [ -> ]The signal will not be combined to mono. The toslink input would accept 5.1 if you feed it with such signal. You'll need an optical splitter on the output and send the splitted LR signal to the speakers. In the web interface you'll choose which speaker is left/right.

Amazing - exactly what I needed to know, thanks so much.

So then my arrangement would look something like this I think?  

Mixer -> Analogue XLR or RCA output (I think RCA should be fine, since it's less than 5m run, and just for home use? -> A/D Splicer (Like this one?) -> Optical to -> Avantree Transmitter -> Optical Splitter (like this one?) -> Phantoms left/right?> 

I'm not clear on how I define with channel is left/right on the Avantree interface, but the split happens after (at the splitter dongle) just before the phantoms.
Would the splitter somehow 'know' which channel is left and right (or that there's just two channels) and keep them separated?
You could skip the A/D converter and use the aux input on the Avantree if the onboard ADC is ok. The output signal of the Avantree will be stereo, splitted by the spitter to two identical stereo signals fed to the Phantoms. In the Phantom web interface you'll choose which speaker is left or right.
(18-Feb-2023, 11:37)ragwo Wrote: [ -> ]As I understand the speakers still have protection against self destruction. You could use an optical switch with your mixer as one input and a BT dongle with optical output as the other.
You'll need an ADC(analogue to digital converter) to convert the mixer output to digital. CYP has a couple of affordable solutions, I would have bought an old RME ADI-2 AD/DA or similar.

(19-Feb-2023, 23:39)ragwo Wrote: [ -> ]You could skip the A/D converter and use the aux input on the Avantree if the onboard ADC is ok. The output signal of the Avantree will be stereo, splitted by the spitter to two identical stereo signals fed to the Phantoms. In the Phantom web interface you'll choose which speaker is left or right.

I'm not quite following how that would work, as I only have XLR and RCA L/R outputs from the controller, no aux/trs output.
I would need XLR or RCA to aux converter I guess?
That doesn't really simplify the system though, just different converter.
You'll need a cable with RCA in one end and mini jack in the other to connect your mixer to the Avantree. I believe the aux input is analogue. Thats $1 on eBay or $10 at your local hifi shop. It's not a converter just a piece of cable.
I accomplish this using a Bluesound Node2i. I have audio going into the node 2i via optical and then if I want to bluetooth to them I just pair my phone with the node 2i and it automatically switches inputs.
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