LC Audio Zapsolute "Power Down Mode" Problem

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Hello~

About a week ago, I changed input impedance of Zapsolute power amp from 2K to 45K. (in unbalanced connection)

As manual says, I changed RZ resistors & put 1uf Cap to signal line.
New parts are 4 Holco resisters(45K) & 2 Solen FastCaps(1uf). (for 2 channel)
Also because I use RCA only, so I connected it to 'direct input' as manual recommends.

Surely, Sounds are much better than before. (my pre-amp is tubed one.)
But, After changing that, 'Power down' mode does not work at all.
That is always in 'Class A' mode. (both two channels are same)

Is it normal ?
If not, please tell me some check points.

My Zapsolute is Mk4.2.

Thanks in advance

 

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Also... LC audio can not be reached

Also I tried to contact LC audio,
but that always return belowing messages.
Maybe they did something for preventing spam mail.
but that block regular mail too :-(

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This is the Postfix program at host mx3.b-one.net.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The Postfix program

<jens-posselt@stofanet.dk>: host mx02.stofanet.dk[212.10.10.12] said:
550-Rejecting this message because it looks like SPAM to me! - Denne e-mail
550 blev afvist fordi den ligner SPAM! (in reply to end of DATA command)
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