On 2015-01-23, Martin Τrautmann <
t-us...@gmx.net> wrote:
> On 22 Jan 2015 22:03:44 GMT, Jolly Roger wrote:
>> On 2015-01-22, Martin Τrautmann <
t-us...@gmx.net> wrote:
>> > On 22 Jan 2015 17:20:19 GMT, Jolly Roger wrote:
>> >> No need for a dock (though a speaker with a dock would work fine I
>> >> suppose). I use a portable Bluetooth speaker for this. It sits on the
>> >> table next to the bed connected to power most of the time, but has an
>> >> internal battery for times when I'd like to take it somewhere without a
>> >> power connection.
>> >
>> > Wireless is nice. But why use wireless when a wired solution is as good.
>>
>> Because it's not as good. For one, it's missing all of the wireless
>> features, and is nowhere near as convenient. : )
>
> wireless features could be
> * additional radiation (ok, no one cares any more)
> * loss of transmission (works fine most of the time)
> * more energy (your numbers show a reasonable implementation)
> this should be improved by Bluetooth 4.0
> * less quality (which I do not mind for an alarm)
> this should be ok with A2DP
Please. You're obviously struggling to come up with negatives in order
to prove something. Use whatever you wish. I care not.
> .. so several questions, all of them solved more or less.
> But no need to ask for them for a wired transmission.
>
>> > What's the power consumption of a wireless solution? Usually it's much
>> > higher.
>>
>> My Kill-A-Watt P3 meter shows the following for my Bluetooth speaker
>> during normal operation:
>
> great, glad you got one of those
>
>> RMS Voltage: 120 V
>> RMS Output Current: 0.01 Amps
>> Active Power: 1 Watt
>> Apparent Power: 1 VA
>> Frequency: 59.9 HZ
>> Power Factor: ~.22 PF (W/Vrms Arms)
>>
>> In comparison, I have a powered speaker with iPhone dock that reads much
>> higher during normal operation:
>>
>> RMS Voltage: 120 V
>> RMS Output Current: 0.04 Amps
>> Active Power: 2 Watts
>> Apparent Power: 5 VA
>> Frequency: 59.9 HZ
>> Power Factor: ~.52 PF
>
> Not exactly the numbers I was looking fori
Yes, I know. My wireless solution doesn't consume more power, which is
opposite of what you said.
> So I'm more interested in the standby consumption. If it was 1 W, it
> would drain a battery with 5 Wh within 5 hours. But I suppose it would
> be too low to measure with your P3 meter. That's good to know. I've seen
> much worse, draining > 5 W in standby.
Not here. Must be your poor choice in hardware.
Anyhow, since you are apparently set in your ways and have already made
up your mind, there's no reason to continue this conversation. Have a
good one. : )