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From: Roger Lapthorn <rogerlapthorn@gmail.com>
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Subject: LF: OT: Headphones
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Slightly OT but people like Mal and Jim may have an answer.

Is there a "modern" (i.e. can you buy it new today?) headphone set that is *
extremely* sensitive in the same way that the old DLR5 headsets were in
terms of efficiency converting AF to sound pressure in the ear?

I believe Jim M0BMU claimed 2uV audio power could be heard using DLR5
headsets in his passive mechanical SAQ receiver. As DLR5s are more
difficult to find these days I was wondering if there is anything as
sensitive, or more so, around "new".

73s
Roger G3XBM

-- 
http://qss2.blogspot.com/
http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
https://sites.google.com/site/sub9khz/

--f46d04447e5927006904b78a06c7
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Slightly OT but people like Mal and Jim may have an answer. <br><br>Is ther=
e a &quot;modern&quot; (i.e. can you buy it new today?) headphone set that =
is <i>extremely</i> sensitive in the same way that the old DLR5 headsets we=
re in terms of efficiency converting AF to sound pressure in the ear?=A0 <b=
r>
<br>I believe Jim M0BMU claimed 2uV audio power could be heard using DLR5 h=
eadsets in his passive mechanical SAQ receiver. As DLR5s are more difficult=
 to find these days I was wondering if there is anything as sensitive, or m=
ore so, around &quot;new&quot;.<br>
<br>73s<br>Roger G3XBM<br clear=3D"all"><br>-- <br><font color=3D"#888888">=
 </font><font color=3D"#888888"><a href=3D"http://qss2.blogspot.com/" targe=
t=3D"_blank">http://qss2.blogspot.com/</a><br></font><font color=3D"#888888=
"><a href=3D"http://g3xbm-qrp.blogspot.com/" target=3D"_blank">http://g3xbm=
-qrp.blogspot.com/</a></font><br>
<font color=3D"#888888"><a href=3D"http://www.g3xbm.co.uk" target=3D"_blank=
">http://www.g3xbm.co.uk</a><br><a href=3D"https://sites.google.com/site/su=
b9khz/" target=3D"_blank">https://sites.google.com/site/sub9khz/</a><br><br=
></font><br>


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