If you are using a "FIOS TV One" box, it is likely that you can upgrade that external wall-wart switching power adapter to a linear power supply. Just make sure you figure out the exact size of the DC plug and the voltage used (such as 5V or 12V or something). You can find a china linear power supply on ebay for $100-200 dollars. These are decent enough to give a big improvement over the switching power adapter. Just as a side note, I have seen a significant improvement on audio/video quality for a Tivo by adding a 12V linear power supply for it.
As far as PS4, I don’t know. It uses an internal switching power supply with multiple voltage outputs, so there really isn’t anything you can do. I believe it was engineered mainly as a gaming platform with media streaming support as well. It’s definitely not an "audiophile" device. If you wanted to stream with an audiophile level, I would look into something like a Roku device, then upgrade it to a linear power supply (BIG improvement). Or a Tivo. The Amazon FireTV cubes seem to have a weird power connector, so I don’t know about that one.
Googling, I see that there is a " pendoo Android 10.0 TV Box " using the latest Andriod 10.0 operating system available from Amazon for $55 if you want a more generic "android" streamer (instead of a more prioprietery Roku or Tivo).
The HDMI cable also has significant impact on sound quality. Just because it’s "HDMI 2.2" or "HDMI 2.1" certified doesn’t actually mean anything. A lot of these 2.0/2.1/2.2 cables really aren’t any better than older HDMI 1.3/1.4 cables in a lot of situations. Most will pass 4K, but it doesn’t mean anything about quality. I know of cables from 2007 (such as Wire World Starlight 5-2) that will also support 4K in the 1-5 meter length without anything special, but these cables provide a superior audio/video quality.
The best HDMI cable for the money I have found is Nordost Heimdall 2 with its 25awg solid core conductors (at a minimum 2 meter length). The older Wire World Starlight 5-2 or 6 cables are readily available. These 5-2/6 cables have a larger 24awg conductor, but lower grade copper and you -might- get some brightness/harshness from them (probably not with Marantz). However, they have better resolution and more "oomph" in the bass/midbass area.
Always get minimum 2 meter HDMI cables (even if the components are close). Short 1 meter type cables have problems with high frequency response and video sharpness due signal reflections on such a short cable.
As far as PS4, I don’t know. It uses an internal switching power supply with multiple voltage outputs, so there really isn’t anything you can do. I believe it was engineered mainly as a gaming platform with media streaming support as well. It’s definitely not an "audiophile" device. If you wanted to stream with an audiophile level, I would look into something like a Roku device, then upgrade it to a linear power supply (BIG improvement). Or a Tivo. The Amazon FireTV cubes seem to have a weird power connector, so I don’t know about that one.
Googling, I see that there is a " pendoo Android 10.0 TV Box " using the latest Andriod 10.0 operating system available from Amazon for $55 if you want a more generic "android" streamer (instead of a more prioprietery Roku or Tivo).
The HDMI cable also has significant impact on sound quality. Just because it’s "HDMI 2.2" or "HDMI 2.1" certified doesn’t actually mean anything. A lot of these 2.0/2.1/2.2 cables really aren’t any better than older HDMI 1.3/1.4 cables in a lot of situations. Most will pass 4K, but it doesn’t mean anything about quality. I know of cables from 2007 (such as Wire World Starlight 5-2) that will also support 4K in the 1-5 meter length without anything special, but these cables provide a superior audio/video quality.
The best HDMI cable for the money I have found is Nordost Heimdall 2 with its 25awg solid core conductors (at a minimum 2 meter length). The older Wire World Starlight 5-2 or 6 cables are readily available. These 5-2/6 cables have a larger 24awg conductor, but lower grade copper and you -might- get some brightness/harshness from them (probably not with Marantz). However, they have better resolution and more "oomph" in the bass/midbass area.
Always get minimum 2 meter HDMI cables (even if the components are close). Short 1 meter type cables have problems with high frequency response and video sharpness due signal reflections on such a short cable.