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How to make low end digital sound "not terrible" on higher end systems?

Hi all,
So when I listen to my hyperion CD of Rachmaninov’s Vespers (Corydon Singers with Matthew Best) or The Eagles "Hell Freezes Over" on the below system it’s utterly fantastic. The Vespers is just amazing. I could go on about how wonderful it sounds.
However, when trying low end sources (my iPhone or streaming from Spotify) through the below system ....well, it’s essentially so terrible, it’s almost laughable. It’s just offensive to my senses and really can’t be listened to for any length of time as it’s just very annoying.Is there anything I can do to make it tolerable?
And here’s what I mean by "tolerable": when I’m exercising or just out and about, I’ve got some descent LG ear buds bluetoothed to my iPhone and while the music (either from files on the phone or streamed from Spotify) isn’t like the Vespers mentioned above, I enjoy listening to it. It doesn’t annoy me and I’m into it, I’m captured and can lose myself in the music. I’m "rocking." --I’m not gritting my teeth like I do when it’s played over my below home system.
What I want is to occasionally play a lower end source over my home system and not have it suck as bad as it currently does. ....To at least get it to the level of my cheap ear buds streaming Spotify.I know there are many reasons low end sources sound crappy over good systems but are there any fixes? Some EQ adjuster that’ll at least get it up to where my ear buds are? Or something else?Thanks!

PS Audio PerfectWave transport
Chord 2Qute DAC
Modwright SWL 9.0SE Preamp
Butler 2250 Amp
Modified Maggies (by Peter Gunn)
andrew-benn
ieales's avatar
ieales
1,201 posts
 
Tubes won't help.

The signal bears no relationship to the original signal and the lost information cannot be recovered.

Compressed audio is tolerable here as sonic wallpaper only either mono over a Boston Acoustics Solo or through 5-ch stereo on the HT.

Otherwise, fogedaboutit!
Post removed 
clearthink
1,421 posts
 

ieales-"Tubes won't help. The signal bears no relationship to the original signal and the lost information cannot be recovered"

This statement is completely false and reflects confusion, ignorance and/or misinformation about the nature, function and operation of vacuum tube equipment. While I accept and understand you're apparent distaste and dissatisfaction with tube equipment, it is by design and operation a simple, demonstrative and scientific fact that the output bears a distinct relationship to the input signal which can be proven by simple math. If you can not accept, understand, and acknowledge this simple, basic, and fundamental premise then explain to the rest of us where the vacuum tube circuit gets it's output if it "bears no relationship" to the input do you think it collects it's output signal from thin air?
Post removed 
ieales's avatar
ieales
1,201 posts
 
I own tube equipment.

I should have said "Lossy compression bears no relationship to the original uncompressed signal and the lost information cannot be recovered, therefore tubes will not help."

Tubes may soften some of the more egregious artifacts, but will not stop image wander. In some respects tubes make it worse because sound staging is particularly affected. In a great system with excellent 3d presentation, it puts me in mind of orchestra meets Cirque du Soleil
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