So, today brought me a long time elected Sennheiser HD 215:
I thought that now I listen to a better sound quality.. BUT NO.. I think this is my PC (Desktop) is to blame. 7 years. Very old, faulty PSU, Motherboard (etc) do not support the new sound technology standards. When I listen through, there is absolutely no bass, just dirty stereo, buzz, music plays softly. Motherboard just as my PC is old, the sound is integrated (Realtek), bad quality. Settings do not change anything. I'm a producer. I make a music. I love music! Listen to music very much and I want to listen to really good quality. This is going to want to get the DAC+AMP and submit untreated digital audio signal. I want cheaper DAC+AMP. I can't spend more than 120$. But with a such characteristics: 8 channels, 192KHz, 24bit, a lot of SNR and with S/PDIF support. I'm waiting on a proposal, recommendations, advice and opinions.
Sorry for my poor English.