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sci / sci.electronics.repair / Does anyone have any ideas on updating firmware on Sennheiser MM 450-X?

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o Does anyone have any ideas on updating firmware on Sennheiser MM 450-X?Amanda Ripanykhazov

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Subject: Does anyone have any ideas on updating firmware on Sennheiser MM 450-X?
From: Amanda Ripanykhazov
Newsgroups: sci.electronics.repair
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Date: Sat, 23 Nov 2024 20:48 UTC
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From: licensedtoquil@gmail.com (Amanda Ripanykhazov)
Newsgroups: sci.electronics.repair
Subject: Does anyone have any ideas on updating firmware on Sennheiser MM
450-X?
Date: Sat, 23 Nov 2024 15:48:45 -0500
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These expensive headphones sound fine but there is almost no noise
canceling. I Also have a pair of cheap, older PXC310 with NoiseGard 1
and those DO provide quite good noise canceling. This despite the NC on
the 450s being NoiseGard 2

Nowhere is it suggested that there is anything wrong with these later,
significantly MORE expensive headphones, other than the el-cheapo
speling. In fact the reviews say the NC is quite good

I can't find anyone at Sennheiser USA who can be bothered to give me any
clue as to reinstalling the firmware so i wondered if anyone here has
any ideas on where I can find it and how to re-install it?

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