On 1/30/2020 3:58 PM, bill steffey NY9H
having been in the audio business for over 40 years... 20+ with
JBL ... & then Renkus Heinz.. I'd say this is quite a nice
little box.... a very early version SP-1 the device inside was
my opinion exceeds BOSE ... for the purpose
On 1/30/2020 1:15 PM, Klaus Brosche,
@Vianney, with re. to Declans'
What type of audio amp is
used in the SP-1A (and in the SP-1, I have the latter one but
don't want to open
the housing just for this exercise)?
Is it one of these Class-D amp
73, Klaus, DK3QN
Am 30.01.2020 um 19:06 schrieb
Declan Mayock via Groups.Io:
I recently got a sp-1a and find it excellent but on usb/lsb
there is an annoying whine/fizzle, its hard to explain but on
a quiet part of band on filter 1 or 2 it sounds like it is
picking up internal electrical noise from circuitry, it is
only present when volume is turned on on duor even on volume
1, i have moved cables and separated etc but no joy has anyone
else noticed this?