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Electrocompaniet ECI-5 MkII click/noise in speakers when turning on/off

I recently purchased an Electrocompaniet ECI-5 MkII integrated amplifier. When turning it on, after the relay is activated I hear a short clicking and/or noise in the speakers (B&W 805 D3). A similar noise/click occurs when turning off the amplifier. The behavior is independent on which source is selected, volume settings and power supply phase of the amp.

Did anybody experience anything like this with Electrocompaniet amplifiers?

Best regards, Johnny
jhalkjaer

Showing 2 responses by jhalkjaer

jhalkjaer's avatar
jhalkjaer OP
4 posts
 
Any owners of Electrocompaniet amplifiers out there?

jhalkjaer's avatar
jhalkjaer OP
4 posts
 
Thanks for your answer.

I think the click/crack/noise artefact occurs because the EC amplifier is a fully DC coupled amplifier and once the input relay is activated a potential DC offset on the input stage is coupled unto the speaker terminals. This is a consequence of the amplifier topology, I guess, it just doesn't sound that good. I'm just a little worried that this harmful to the speakers? However, I can then use the mute feature you mention.

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