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In Reply to: RE: Rotel RB-1092 and tube preamp posted by xtsili@grnet.gr on September 12, 2014 at 01:18:44
I found my 'd' amp, a GCC250 from PSAudio with B&O ICE modules to have a 'funny' top end which my panels didn't completely enjoy. I think there were some upper frequency phase issues, too.
Now, is spotify a 32kb sample rate or higher, like 44.1 or perhaps 48?
A 32kb sample rate implies a max frequency response of 16khz which makes your feed pretty much equivilent to decent FM.
I don't care about up/down/sideways sampling, what is the online feed rate?
Replacing the 'd' integrated with conventional stuff in the form of Parasound A23(s) made quite a difference for the better. With rms power a fraction less but I suspect as much as 1db more headroom or more….
Too much is never enough
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Spotify uses 320kbps for streaming that's only I know. Surely it is not the mantra of high-end but the quality is not bad at all.
I decided to go the preamp-change road and keep my amp. Otherwise I have to sell it very cheap and this will be waste of money. The chalenge is to find a good match for the amp and I am sure it exists.
xtsili
Don't get me wrong. My 'small dish' has Sirus / XM feeds which are really good for casual listening or doing housework.
I have 2 sets of file of my better stuff. Set #1 is ALAC and goes to the stereo. Set #2 is converted to MP3 at 160, which I find to be a reasonable compromise between memory used and fidelity.
It is SAMPLE RATE which would appear to set the upper limit of frequency response. Since NONE of my sample rate indicators light, I know that small dish is 32khz. And THAT tells me I'm limited to what would be pretty much FM frequency response, except digital has much better bass.
If you can get over tubes, the Parasound P5 has a built-in DAC which is perfect for those feeds you enjoy. I reserve my DACMagic+ for my Playstation or feed from the confuser.
Too much is never enough
I see what you mean with the sample rate. To be honest what I miss is some muscle alongside with mellowness If you know what I mean. In both fields tubes may offer some improvement. And I tend to believe that streaming quality isn't the problem.
For Spotify reviews please check this. it is quite telling as to its quality :http://www.whathifi.com/spotify/review
xtsili
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