Recent Posts

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General Discussion / Crack Up hairpin leg and bottom cover kit for Crack amps
« Last post by Doc B. on Today at 01:32:38 PM »
The new bottom cover and leg kit is now available-

https://bottlehead.com/product/crack-up-legs-and-bottom-cover-kit/

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Moreplay / Re: Moreplay - Hum in the input-chanel with phono preamp, left chanel cracks
« Last post by Deluk on Today at 01:50:54 AM »
Where is that black wire connected to? Its counterpart on the other valve looks to go to the adjacent tag strip and the "spare" wire doesn't look to go anywhere near the left one. Photo?
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Moreplay / Re: Timothy C’s Moreplay Build
« Last post by timmieec on Yesterday at 02:49:53 PM »
Hah thanks @Karl5150 for pointing that out! In my excitement to listen to the Moreplay, I didn’t realise I had the direction reversed  ::)
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Moreplay / Re: Moreplay - Hum in the input-chanel with phono preamp, left chanel cracks
« Last post by Paul Birkeland on Yesterday at 05:49:45 AM »
When I have run into the problem you're describing, frequently the source of the issue is that earth ground, the chassis, and audio ground are in a state of relative disagreement with each other.  I just debugged an amp with this same problem the other day, and I had to scrape off some coating on a panel that was preventing the audio ground and chassis from connecting properly.  In your preamp, I would look carefully at the tinned buss wire around the IEC power entry module and be sure all your hardware is tight.   When you are connecting the Denafrips, it is temporarily restoring whatever is missing.
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Moreplay / Re: Moreplay - Hum in the input-chanel with phono preamp, left chanel cracks
« Last post by [email protected] on Yesterday at 05:08:41 AM »
Hi Paul

if you mean the black cable that is going over the left tube socket, that is actually connected. It is just a little to long and for that reason it looks disconnected.
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Moreplay / Re: Moreplay - Hum in the input-chanel with phono preamp, left chanel cracks
« Last post by Paul Birkeland on Yesterday at 04:46:48 AM »
Have you connected the black wire that's just floating around and not going anywhere in your build?
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Moreplay / Re: Moreplay - Hum in the input-chanel with phono preamp, left chanel cracks
« Last post by [email protected] on Yesterday at 01:08:09 AM »
hello again,

I couldn´t find anything about the Ifi Zen phonopreamp in the internet that could help, but I found out that only if I connect the Denafrips to the Moreplay via rca there is no hum. if I connect the Wiim mini, with 3,5 jack into the Wiim and rca into the Moreplay there is hum. the same with the Ifi Zen phonopreamp also rca. I always tried it with all 3 imputs, just the denafrips was silient. the moment I connect the rca between the Moreplay and the denafrips the hum desappears. If I don´t connect anything to the Moreplay there is hum in all of the 3 inputchanels. its the same hum that the Ifi Zen or the Wiim mini create, when they are connected.

And unfortunately my left chanel ist still cracking from time to time.

I am grateful for any ideas.

thanks
Jens
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Moreplay / Re: Timothy C’s Moreplay Build
« Last post by Karl5150 on April 15, 2024, 06:04:31 AM »
Again, nice clean build and finish. I noticed that you are using directional RCA cables on the output and that one is reversed. Will the electrons be facing the wrong direction in that channel?
Enjoy the tunes.
Karl
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BeePre / Re: Mechanical Buzz from Power Transformer on BeePre2
« Last post by Paul Birkeland on April 15, 2024, 05:55:00 AM »
I think it's worth giving a replacement transformer a shot.  I believe we will be getting a fresh batch in this month.

-PB
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Moreplay / Re: Timothy C’s Moreplay Build
« Last post by timmieec on April 15, 2024, 02:02:21 AM »
Thank you everyone for the guidance! Will do my best to balance the preamp using tracks with a strong centre image :)
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