Hello,
The HEOS app makes the marantz be the streamer/DAC. I would recalibrate your Audysee to adjust 300 hz and below. I think you need the Audysee app for that type of calibration. The HEOS is free. Take the money you have and save up for a stronger DAC streamer. I have a BlueSound Node2i. I love it. I feel it is way better than the Marantz. I do have a really good sounding DAC to put my BlueSound Node into. Lumin is a great streamer but not a DAC. I prefer the BlueSound app over the Lumin app. Lumin does sound better and is killer at locating your other music on your network. You can get a BlueSound Node 2i for $450 right now. It is a DAC because it has a toslink input. The built in DAC is equivalent to a $500-$600 DAC. If you can stream all of your CDs you will leave your CD collection be until you get a killer DAC and run you CD/transport through it. This store in the Chicagoland area has the BlueSound Node 2i for $450 if you can’t locate anywhere else. https://holmaudio.com/They have the new Node but I can’t hear any difference. They also have the Vault. I am toying with buying it because it rips my CD collection and I can play that in other parts of the house or on my patio system. Some of my CDs are not streaming.
The HEOS app makes the marantz be the streamer/DAC. I would recalibrate your Audysee to adjust 300 hz and below. I think you need the Audysee app for that type of calibration. The HEOS is free. Take the money you have and save up for a stronger DAC streamer. I have a BlueSound Node2i. I love it. I feel it is way better than the Marantz. I do have a really good sounding DAC to put my BlueSound Node into. Lumin is a great streamer but not a DAC. I prefer the BlueSound app over the Lumin app. Lumin does sound better and is killer at locating your other music on your network. You can get a BlueSound Node 2i for $450 right now. It is a DAC because it has a toslink input. The built in DAC is equivalent to a $500-$600 DAC. If you can stream all of your CDs you will leave your CD collection be until you get a killer DAC and run you CD/transport through it. This store in the Chicagoland area has the BlueSound Node 2i for $450 if you can’t locate anywhere else. https://holmaudio.com/They have the new Node but I can’t hear any difference. They also have the Vault. I am toying with buying it because it rips my CD collection and I can play that in other parts of the house or on my patio system. Some of my CDs are not streaming.