HD600/650 maximum power rating?
Jul 7, 2008 at 2:34 PM Thread Starter Post #1 of 8

Navyblue

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Anyone know what is the maximum power that Sennheiser HD600 or HD650 can handle?

I can't seem to find it on their website.

Thanks.
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Jul 7, 2008 at 6:39 PM Post #2 of 8

HeadphoneAddict

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I was gonna take a guess at about 500mw. But I found this that says 0.2 watt (200MW): Hardware Pacers - Reviews, Previews and Articles on latest Hardware and Technology

Technical Specifications:

Transducer Principle: Dynamic, open
Frequency Response: 16-30,000 Hz (-3dB)
Nominal Impedance: 300 ohm
Sensitivity at 1 kHz: 97 dB
Weight Wo Cable: 9.2 oz (260 g)
Power handling capability: 0.2 W as per DIN 45580
THD (as per DIN 45500): ≤ 0.1 %
Characteristic Spl: 97 dB
Ear Coupling: Circumaural
Headband Pressure: 2.5 N
Distortion: Less than or equal to 0.1%
Connector: 3.5 mm mini-stereo with 1/4” adapter
 
Jul 8, 2008 at 2:07 PM Post #3 of 8

Navyblue

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For me I was going to take a guess at 0.1W.
biggrin.gif
The 250 ohms DT880 is 0.1W. K501 that need a couple of notches up the volume knob to attain the same volume as the DT880 and HD600/650 is 0.2W. So I am guessing the HD600/650 should be in the ballpark of DT880.

Thanks.
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Jul 8, 2008 at 9:27 PM Post #4 of 8

HeadphoneAddict

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Here is an interesting tidbit. The max output voltage for the Pico is about 8V. Max output current is 250mA (.25A). The power = voltage * current, so that would be up to 2 watts.

With a 300 ohm headphone, the power is limited to 1/5W by voltage because at the max 8V output, only 26mA of current is being used (8V = .026A * 300). This is the magical 0.2W the HD600 is rated for.
 
Jul 9, 2008 at 1:54 AM Post #5 of 8

alitomr

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I am pretty sure the max power rating in my HD650 was 500mW. I sold them to Ramdom Murderer last week and he received it yesterday. I am going to PM him to ask him to check the lil manual.

Ive read here that the HD650 requires around 9V output to sound its best. 8V seems to be great for a portable. Ive been trying to find out what is the output of the lyrix but Robert never replied when I asked him.
 
Jul 9, 2008 at 4:53 PM Post #6 of 8

Navyblue

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Ok, the standard answer is:

HD600: 0.2W
http://www.sennheiser.com/sennheiser/icm_eng.nsf/resources/HD_600_Avant_GB.pdf/$File/HD_600_Avant_GB.pdf

HD650: 0.5W
http://www.sennheiser.com/sennheiser/icm_eng.nsf/resources/HD650.pdf/$File/HD650.pdf

Apparently there is a few versions of the webpage and brochures of the same product. It's strange that Sennheiser didn't include this piece of information on all versions.

Thanks guys.
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Jul 9, 2008 at 5:10 PM Post #7 of 8

Golden Monkey

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I love how the manual tells you you need to clean or replace the earpads from time to time, but there's no instructions on how to remove them...
 
Jul 9, 2008 at 5:28 PM Post #8 of 8

Tiemen

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Quote:

Originally Posted by Golden Monkey /img/forum/go_quote.gif
I love how the manual tells you you need to clean or replace the earpads from time to time, but there's no instructions on how to remove them...


Just pull them out. Take a side of the cushion between your fingers, and pull towards you. It comes out rather easy. They're mounted on a plastic edge.
But I have to admit, it took some time before I had sorted that out
 

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