Fosi PH-05 Headphone Distribution Amplifier

[Franzois]

I am the guilty-party for buying this FOSI PH05 on a whim.

I baited @amirm to test it, because I was going back to strictly 2-channel audio and walled-away from multi-channel A/V system hook-ups.

I was also planning to replace all of my current multi-channel Rotel A/V separates-based system to one that does not strictly rely on a software/update driven monstrosity that I feel most current A/V systems have become.
I figured that I can feed four (4) separate zones in the house for music from/to a variety of audio sources that we have access to: PCs, Server, NAS, DAP, mobile, SXM, cable, streaming, and mobile... using a shared/hybrid local (PoE/Cat6+) Dante network and adapters.
I have been using the Dante network for a few years, and it truly outshines the rest of my network hardware/software for uptime. Even when the rest of the network is down, the Dante I/F nodes continue to perform.

I also decided that this revised audio system will be balanced (XLR) interfaces to the maximum extent possible.
It also had to be based on stereo hardware which were small, dirt-cheap but w/2024 level of competency in technical performance.
After seeing the performance and test results of this FOSI PH05, I decided that it will NOT work for its originally intended task.
I need to feed a stereo-pair of RCAs (single-ended) audio simultaneously to two (2) different 2-channel loads that are now XLR inputs (balanced).
A 4-channel Direct Box.
I did not like the idea of a 'y-splitter' cable and/or "2in-4out" transformer-coupling and this PH05 does not match the performance and features I desire.

I am considering the purchase of either the RadialEng'g J+4 or the HenryEng'g Matchbox HD which are more costly than the SMSL D100Pro or FOSI ZD3 and ZA3, that they maybe be used with.
I also don't see any ART boxes which provide an active L/R RCA input with dual-L/R XLR outputs. ART is more inline with my budget.

Any suggestions for other such active DI boxes would be much appreciated.

I have a similar use case. In this case, the box is not used as a headphone distribution amplifier but only as a distribution amplifier plugged into high input impedance amplifiers.

So the performance we should look at is the 2V in / 2V out one, i.e. a 90dB Sinad.

Is this correct, or I am making a mistake somewhere?