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Audiocontrol processors and receivers are based on Harman design aka Arcam. Same display, same remotes, same button layout, basically the same back etc.

Looks like a nice setup!

Ok thanks what kind of preamp are you using?

Is there any loud pop/ thumps on startup with the Audiophonics purifi based amplifiers?

I’m not talking about IcePower in specific but I’ve seen products using XLR cables between with the XLR “chassis ground” connected on the contact which have indeed caused louder hiss/ noise.

It’s usually not an issue but you can try XLR cables that are not using chassis ground to see if that solves the issue.

It’s difficult to see if it’s connected to chassis since the solder tab is underneath the other ones.

Interesting. You could try another XLR cable and see if that would solve the issue. I don’t remember if the Supra XLR is connected to chassis ground but you can open it up and check. You could also try something like the iFi Audio GND Defender on the pre amp to see if that removes or lowers...

Ser inga direkta fel på slutsteget men om du svarar på det jag frågade innan kan det förmodligen ge dig svar på äfelet”. Kan lika gärna vara så att du har känsliga högtalare och använder slutsteg med hög gain, det ger dig hiss i högtalarna som inte är onormalt.

Hiss in the midrange? Like white noise? That’s not normal, is it hiss or like a hum noise in the midrange? XLR adapters should not change the gain. Maybe you have a ground loop. What’s the sensitivity of the speakers?

Noise level in form of hiss in the tweeters? The IcePower module does have almost 30dB of gain which’s is pretty high but not unusual.

Ok great, I’ll let you know if I decide to grab 3 modules and implement them. Thanks Tom!

I agree with you and I’m asking myself the same thing. I’ve asked Apollo and at least they say that the amps doesn’t have pops on startup. But all manufacturers I’ve asked say the same thing.

No worries! Would be nice to see the result though. I think it’s a bit odd that some people have pops on startup with Purifi modules but seems like most doesn’t have that at all.

Do you have any pictures of the installation?

Tom, In my case it’s the Purifi based modules that causes the pop since it pops without the preamp connected as well. Mine does not really pops on turn off, only when turning on the amplifier. I thought the Guardian-86 needed 15V to function. Using the 12V to power your module sounds like a...

Ah thanks that should do the trick!

I have similar turn on pops/ thumps in a 3ch Purifi based amplifier. Doesn’t matter if the amp is turned on manually or by a 12v trigger. What kind of network enabled plug did you end up buying? I’m considering buying Tom’s protection modules which would delay the output 5 seconds. Although...

To be honest, it didn’t sound like suggestion but thank you for clarifying :) Yes the Storm mic placement is different and the Dirac target curve is actually supposed to be quite “bass light” since it makes the sound flat. Most people don’t want a flat response in the bass region so we just...

Why? I’ve used and checked out storms calibration procedures. So if you have something to say… explain it so it’s possible to answer you. Just look at Diracs own calibration guide which says: Measure some points outside the listening area. E.g. for a sofa, it is recommended to do a few of the...