Sound Quality and Verizon FIOS Fibre Optic Internet

Very nice system.

Switching from the stream run over WiFi then over T-Mobile LTE there is an instant improvement in resolution and absolute clarity

Just so I'm clear on this, iPhone uses Wifi from the Verizon router. Macbook is using T-Mobile 4G LTE. 
Do both use the same DAC?

Tidal streams from both the iPhone and the Mac? Is this correct?
If so, maybe the Mac handles the stream differently.

Can you swap devices?  Will the Mac work on WIFI and can the iPhone use T-Mobile?

Lowrider, the system consists of following;

power conditioner; APC H10
Router, Frontier Arris running Fios
MacBook Air running Tidal
DAC; Synergistic Research The Music Cable DAC (an oldie but goodie) The DAC has special USB cable hardwired and cool linear power supply. Superb sounding DAC. Power from Kinki Studio EX-M7. LoL. I think the name and model number is supposed to imply sex, but it is an excellent sounding very transparent integrated amp.
Speaker cables are synergistic research foundation series 3 metre length. Superb cables that deliver about 90% of the performance of the Galileo series. Trustworthy and knowledgable opinions suggest this cable is the best bang for the buck at present.
Speakers are Evolution Acoustics Micro One. Small, but superb. They throw a huge soundstage and are very transparent. Very dynamic, agile sound, thats well fleshed out. Hard to believe the bass performance for a smaller standmount.

My son has the Devialet Expert Pro 220 driving Magico S3s. The sound of that system is remarkable.

AK, what DAC are you using?
What does your system consist of?

Would something like this help?  https://www.dxengineering.com/parts/dxe-iso-plus-2

Elliott, BTW, I'm using the Brickwall because it was a spare and just sitting in my closet. 
Two recommendations:
1. Any passive power conditioner with good RFI/EMI reduction will help the router. Also, the router will no longer be using the cheap wall-wart for power.

2. Do not have your modem/router plugged into any of the circuits that your audio system uses. Don't let the noise contaminate your audio through the AC.

you are saying that the clearly better sound quality streamed from my LTE network as opposed to the Frontier / Arris router / FIOS is because of RFI / EMI? It does sound plausible.

That's my take on your situation. Fios is bringing so much noise into the house. It's possible the Fios wall control unit may use some type of noise reduction, but the RFI produced by the router is so high. 
I'm not a tech who knows about broadband, but it's plausible LTE is a cleaner signal.

Elliott, thanks for sharing. The question always is, could it sound better? 

1. Verizon wall panel
2. coax from wall panel to router with wall wart transformer power.
This is where all the noise happens. I forgot about the Verizon wall panel, so there's possibly some EMI added to the mix.

I believe you can benefit from dumping the router's wall-wart and adding an LPS. There are some good units in the $200 range. Removing SMPS power supplies really does improve SQ.

Lowrider57, artemus_5, and elliottbnewcombjr, 

thanks all for your responses.

Lowrider, great input. I will have to research the Brickwall power conditioner. I am currently using an APC H10 power conditioner that one would not consider ‘high-end’, but i do notice a slight improvement plugging everything into it. The H10 provides INFB technology, which it is claimed, will eliminate electromagnetic and RF interference. It is beneficial to have members such as yourself, who will measure such things as RFI and EMI as it helps us all understand what we are up against. I do understand that a dedicated music server is the way to go for ultimate sound quality and that is the goal for me, but it is an expensive proposition beyond my means at present. So I am working with what I have. So then, Lowrider57, as i understand it, you are saying that the clearly better sound quality streamed from my LTE network as opposed to the Frontier / Arris router / FIOS is because of RFI / EMI? It does sound plausible.

Artemus_5 and elliottbnewcombjr, I think you are looking for answers on this as i am sure many of us are.

Elliott your system seems well designed.

OP, I don’t have answers, but I’m tagging along for the ride,

lowrider

I streamed Music Videos via my Smart TV’s YouTube for hours last night, the quality of the content made the big difference IMO.

I have this chain:

1. Verizon wall panel

2. coax from wall panel to router with wall wart transformer power

3. ethernet out of primary router direct to office pc with 120v, pc’s internal transformer

4. ethernet out of primary router to secondary router with wall wart transformer power

5. ethernet secondary router to devices with their 120v and their internal transformers.

6. ethernet out of secondary router to switch with wall wart transformer power

7. ethernet out of switch to devices with 120v power and their internal transformers.

It’s a wonder it sounds so darn good.
.............................................

sounds darn good means:

Lack of problem(s),

or, could

or WILL sound better IF???

My solution was to plug my router into a BrickWall power conditioner with RFI/EMI protection

Thank you. Just getting into streaming and had not thought about this. But it makes sense

The Verizon router and Fios feed to the house is full of noise in the form of RFI and who knows what else. I tested the RF levels with a RFI meter and beginning at the entry point to my house, my "RF sniffer" was off the scale. Next, moving to the coax line then the router, both indicated peak levels of RFI. Even my ethernet cable from router to streamer was full of RFI.

My solution was to plug my router into a BrickWall power conditioner with RFI/EMI protection. Now the meter indicated zero RFI at the router and my streamer. The coax leading to the router still indicated very high levels.

The result was a very audible improvement in SQ from streaming music. The noise floor had been lowered significantly. There was an improvement in both WIFI and ethernet.

It should also be noted that these routers use a SMPS wall-wart which will introduce noise from the mains and from the device they are powering. Adding a LPS to power the router will improve performance. Many members have reported their results on the forum.