@terry1229,
It seems like you are directly associating as your tube amp with your digital source. If you want to associate your tube amp with it's most important mate, that's your speakers. Pairing amps and speakers that are a good match for each other is a vital part of the equation. Speaker sensitivity(aka efficiency) and impedance curves will make some amps great matches or not. If you change out one, do plenty of research that it will fit with the other.
With your mac & dac, the software that it uses and your choices of cabling and related accessories can make a huge difference too. Electrical & computer noise are the enemies and many products and approaches try to win that war in a variety of ways. Read up here, but more importantly at computeraudiophile to get up to speed on that topic.
Enjoy the ride. Cheers,
Spencer
It seems like you are directly associating as your tube amp with your digital source. If you want to associate your tube amp with it's most important mate, that's your speakers. Pairing amps and speakers that are a good match for each other is a vital part of the equation. Speaker sensitivity(aka efficiency) and impedance curves will make some amps great matches or not. If you change out one, do plenty of research that it will fit with the other.
With your mac & dac, the software that it uses and your choices of cabling and related accessories can make a huge difference too. Electrical & computer noise are the enemies and many products and approaches try to win that war in a variety of ways. Read up here, but more importantly at computeraudiophile to get up to speed on that topic.
Enjoy the ride. Cheers,
Spencer