Looks cool, basically like their new MD recorder.
I guess these panels on the sides of docking station are mini speakers.
The only thing I wonder is how it sounds, particularly from its headout (and my hopes are not extremely high there)
maximum 193-hour playback, probably achieved by cutting amp output (it is now 3+3mW @ 32ohm, down from 3.5+3.5 @ 22). It also has headphone surround, but the press release says nothing about how it works.
Originally posted by leon maximum 193-hour playback, probably achieved by cutting amp output (it is now 3+3mW @ 32ohm, down from 3.5+3.5 @ 22). It also has headphone surround, but the press release says nothing about how it works.
At least it ain't as low as the E909's...from what I know, that's 3.5mW @ 16 ohms...
If you were to plug some MX500s, with an impedence of 32 ohms, the you should be able to get 3mW per channel with the Panasonic. If you were to do the same with the Sony E909, then you'd get 1.75mW per channel, if you connected some cans with 40 ohm impedence, the the Panasonic should provide 2.4mW per channel, and the Sony E909 1.4mW per channel...
This is what I came up with after trying to figure out why an extra .3mW made my Aiwa so much louder than my Panasonic, and louder than 5mW Sonys. Also why the Panasonic was pretty much level with Sony, but with less mW. So I figured that it had to be something do do with the unit's rated amp impedence.
So to me, when Sony claims a 5mW amp at 16 ohms, that means when you plug in some 16 ohm headphones (is there such a thing?) you'll be able to get 5mW per channel running through the 'phones. This also made me think that if you were to use cans with twice the resistance, you'd only get half as much power running through them. But to work out, say cans with 40 ohm impedence I came up with this:
Sony standard headphone amp (not E909 AFAIK) is 5mW x2 @ 16 ohms.
Therefore to find the power supplied to 40 ohm cans:
Then multiply the amp's rated output at 16 ohms by the above number, in this case, 0.4:
0.4*5=2mW per channel.
For my Aiwa:
0.8*3.8=3.04mW per channel.
For my Panasonic:
0.55*3.5=1.925mW per channel.
For the new MJ15:
0.8*3=2.4mW per channel
0.4*3.5=1.4mW per channel
For most Sharp units:
0.8*5=4mW per channel.
It works for any impedence, but the lower the impedence of your cans, the more favourable Sony units will be over Panasonics. However, the higher the can's impedence, the more equal they become. That is what I've found. eg, for D66 eggos with 24 ohm impedence:
0.66*5=3.33mW per channel
0.9166*3.5=3.208mW per channel
For 16 ohm headphones:
1*5=5mW per channel
1.375*3.5=4.81mW per channel
Just for fun:
0.0533*5=0.266mW per channel
0.0733*3.5=0.2566mW per channel
This could also explain why people find that cans such as KSC35s sound so soft on their PMDU.
I have no idea if this is right, but when I came up with it, seemed to explain a lot.
P.S. Sorry this is long, I hope it is clear enough though!
Right... I remember having read somewhere that doubling impedance (meaning, say, rated at 32 ohm instead od 16) doesn't simply double anything or halve anything... and that with lower impedance phones it's more about current (off topic)...
But I guess the thing I don't think is the case is usually the case, so there we go.
It's true you know. If the impedance used to state the power / current output and the impedance of your phones are too far apart it's impossible to accurately predict the power output to your phones without some knowledge of the inner workings of the amp.