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Lucabeer wrote:
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Chris Firth 
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Joined: 16 May 2013 Location: Rossendale, UK Status: Online Points: 1532 |
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 Posted: 13 Mar 2019 at 9:07pm |
Where did you derive such figures?
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Lucabeer
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Joined: 24 Jan 2009 Location: Torino, Italy Status: Offline Points: 711 |
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Posted: 13 Mar 2019 at 9:17pm |
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From needledrops on the Dynamic Range Database.
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Chris Firth
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Posted: 13 Mar 2019 at 10:16pm |
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So it's based on someone else' digital recording of a bit of vinyl? I'd drop that as evidence of anything other than there's a signal of some sort ..... |
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Lucabeer
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Posted: 14 Mar 2019 at 6:30am |
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On average, I find that this database is rather reliable for understanding which recordings are hotter and which ones are softer (the numbers are consistent with what my ears say).
Between two albums with similar peak values, the one with lower rms always sounds lower in volume.
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ServerBaboon
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Posted: 14 Mar 2019 at 12:06pm |
 ..I cannot push my ATH-900 much past 9 o'clock |
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Steve
------------- Various bits of GSP Kit ..well two so far, unless you count the cables that is. |
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Lucabeer
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Posted: 14 Mar 2019 at 1:16pm |
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The 900 was a very efficient headphone: it requires around 1/5th of the mW power of my Denons to reach a comparable sound pressure level, so that explains why it sounds louder indeed.
Edited by Lucabeer - 14 Mar 2019 at 1:18pm |
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Graham Slee
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Posted: 14 Mar 2019 at 4:04pm |
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Years ago I made a voltage stage for a power amplifier which never got finished (client cancelled). As it featured a constant current source designed to drive a hefty output stage I thought it wouldn't be too upset driving my 600 ohm senny's (via a DC blocking capacitor of course). I remember to this day how nice it sounded. Obviously that was then and my expectations might (will) have changed. To get the levels you require would require a power supply greater than op-amps are designed for, and that got me thinking of it. I reckon with a decent output stage to buffer it you might find it loud enough, and that's why I considered adding a 1 to the 100 things... But as I said, it could take a while.
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That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
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