[HiGHFLYiN9]

The THD percentage level at 500mW is also relevant. Does anyone have that measurement?

EDIT: Also it would be nice to see the internals. Curious if it is point-to-point or PCB.

 

[SuperRoo]

Hello Headfiers!

We are happy to announce our July 17th Zoom meeting with Ken Zellin from McIntosh. Ken will be online to explain all the technology used also how and why McIntosh used this platform for the MHA200. We will be having a Q&A session so that can ask all the questions you might have.

Date: 7/17/2021
Time: 2:00pm Pacific time
On Zoom

I’ll announce more about this Zoom meeting very soon. We are still working out a few details but Ken is great and very fun source of information from The McIntosh Group.
We hope you join us for what should be very informative and knowing Ken, very fun meeting!

start collecting your questions and curiosities now

I'd love to participate. Keep us informed. Thanks

 

[HiFiGuy528]

Hello Headfiers!

We are happy to announce our July 17th Zoom meeting with Ken Zellin from McIntosh. Ken will be online to explain all the technology used also how and why McIntosh used this platform for the MHA200. We will be having a Q&A session so that can ask all the questions you might have.

Date: 7/17/2021
Time: 2:00pm Pacific time
On Zoom

I’ll announce more about this Zoom meeting very soon. We are still working out a few details but Ken is great and very fun source of information from The McIntosh Group.
We hope you join us for what should be very informative and knowing Ken, very fun meeting!

start collecting your questions and curiosities now

Zoom app is spyware... not for me. Perhaps they can do one over Webex.

 

[mammal]

Zoom app is spyware... not for me. Perhaps they can do one over Webex.

Like we are all pretending Facebook, Google and others aren't spying on us too

 

[qboogie]

Was the Q and A posted on youtube?

 

[TSAVJason]

Was the Q and A posted on youtube?

Only the original 20 minute video with some questions is on YouTube on our YouTube channel. We will post the Ken Zelin zoom meeting Q&A on YouTube within a day or 2 after we do the zoom meeting in July.

 

[TSAVJason]

Special note to owners of the MHA200. We have discovered in 3 cases that cell phones can cause a sound similar to tube degradation/failure. Before you assume your MHA200 has an issue and you use a phone as a music source be aware the scratching sound is more than likely a result of RFI not tube issues.

Have great weekend!

 

[bajs1988]

Special note to owners of the MHA200. We have discovered in 3 cases that cell phones can cause a sound similar to tube degradation/failure. Before you assume your MHA200 has an issue and you use a phone as a music source be aware the scratching sound is more than likely a result of RFI not tube issues.

Have great weekend!

So what do I have to listen to my music in a Faraday cage to know if there are issues with the tube or if it's RFI?

 

[TSAVJason]

So what do I have to listen to my music in a Faraday cage to know if there are issues with the tube or if it's RFI?

thats an option! I’d just move my phone a little further away from the amp. You decide which way you prefer

 

[qboogie]

Was the Q and A posted on youtube?

 

[Lépine]

Yes! I can confirm that the MHA200 will make scratching, popping, and tapping noises from 5G signals. My phone sitting in my charger cradle two feet away would cause these noise even though it was not my music source or connected directly to the MHA200 in anyway. Also it picks up noise from my laptop. The noise is not constant. It only happens when data is being transferred. Music playback may not cause any problems from the phone, but any cellular data transmission will make noises in the amp like a new message alert or app notification.

 

[doggiemom]

Was the Q and A posted on youtube?

It hasn't happened yet. It is not taking place until July.

 

[meomap]

Yes! I can confirm that the MHA200 will make scratching, popping, and tapping noises from 5G signals. My phone sitting in my charger cradle two feet away would cause these noise even though it was not my music source or connected directly to the MHA200 in anyway. Also it picks up noise from my laptop. The noise is not constant. It only happens when data is being transferred. Music playback may not cause any problems from the phone, but any cellular data transmission will make noises in the amp like a new message alert or app notification.

Well, that sucks.
Guess I have to scratch this amp off my Wanted List.....

 

[Lépine]

Well, that sucks.
Guess I have to scratch this amp off my Wanted List.....

You would discount buying one of the finest headphone amps ever built because you won't move your phone father away or put it into airplane mode? The amp is sensitive to RFI, but probably not much more so than any other Tube Amp

 

[meomap]

You would discount buying one of the finest headphone amps ever built because you won't move your phone father away or put it into airplane mode? The amp is sensitive to RFI, but probably not much more so than any other Tube Amp

I have Studio Six tube amp downstair and my laptop or phone did not do a darn thing with RFI.
Thinking about this mh200 for the bedroom with another laptop, Colbalt as dac out to this amp. And now this news coming out?

Really have to think about it......