top 100 innovations

[Albatross]

Text
some of those are retarded,but interesting list anyway

 

[Gibson486]

"The ZP120 digital amplifier is the brawn of the Sonos wireless music-streaming system. About the size of a few hardback books, the amp pumps 55 watts per channel-?enough to power the largest stereo speakers?using the same technology that keeps satellites from overheating. Instead of a traditional power supply, which always provides the same high voltage, the ZP120 delivers only what the amp needs at the moment. The trick for Sonos was developing filters to shield the audio signal from stray frequencies produced every time the power supply switches voltage. $500; sonos.com"

Do these people know what they are talking about?

 

[Jeff7]

I couldn't get past 68. Pressing the Next button stopped advancing the pages.

 

[sjwaste]

Originally posted by: Gibson486
"The ZP120 digital amplifier is the brawn of the Sonos wireless music-streaming system. About the size of a few hardback books, the amp pumps 55 watts per channel-?enough to power the largest stereo speakers?using the same technology that keeps satellites from overheating. Instead of a traditional power supply, which always provides the same high voltage, the ZP120 delivers only what the amp needs at the moment. The trick for Sonos was developing filters to shield the audio signal from stray frequencies produced every time the power supply switches voltage. $500; sonos.com"

Do these people know what they are talking about?

Wait, isn't this just a wireless network of sorts? As in, that 55 watts isn't a wireless signal at all? In other words, an amp in each speaker (or pair) that receives its input stream via wifi or similar rather than RCA pairs?

 

[Kaido]

Originally posted by: sjwaste

Originally posted by: Gibson486
"The ZP120 digital amplifier is the brawn of the Sonos wireless music-streaming system. About the size of a few hardback books, the amp pumps 55 watts per channel-?enough to power the largest stereo speakers?using the same technology that keeps satellites from overheating. Instead of a traditional power supply, which always provides the same high voltage, the ZP120 delivers only what the amp needs at the moment. The trick for Sonos was developing filters to shield the audio signal from stray frequencies produced every time the power supply switches voltage. $500; sonos.com"

Do these people know what they are talking about?

Wait, isn't this just a wireless network of sorts? As in, that 55 watts isn't a wireless signal at all? In other words, an amp in each speaker (or pair) that receives its input stream via wifi or similar rather than RCA pairs?

Yeah they totally screwed up that explanation. Sonos makes wireless music streaming boxes, some with amps built-in, some without. They have a proprietary wireless mesh networking system. It's nothing special, it's just their way of doing it - it was difficult previously to get networking signals to sync properly over Ethernet, which is why Sonos was a big deal. And still is, because they have the best distributed audio system on the market.

 

[Howard]

Originally posted by: Gibson486
"The ZP120 digital amplifier is the brawn of the Sonos wireless music-streaming system. About the size of a few hardback books, the amp pumps 55 watts per channel-?enough to power the largest stereo speakers?using the same technology that keeps satellites from overheating. Instead of a traditional power supply, which always provides the same high voltage, the ZP120 delivers only what the amp needs at the moment. The trick for Sonos was developing filters to shield the audio signal from stray frequencies produced every time the power supply switches voltage. $500; sonos.com"

Do these people know what they are talking about?

"About the size of a few hardback books, the amp pumps 55 watts per channel-?enough to power the largest stereo speakers"
larger speakers generally need less power to produce the same output

"?using the same technology that keeps satellites from overheating."
no idea about this one

"Instead of a traditional power supply, which always provides the same high voltage, the ZP120 delivers only what the amp needs at the moment."
not necessarily true

"The trick for Sonos was developing filters to shield the audio signal from stray frequencies produced every time the power supply switches voltage"
The low-pass to get rid of the switching noise exists in pretty much all Class-D amps. I believe the power supply doesn't switch the voltage, either.