Here is the link to the group buy, go to the last post:
GB For Salas I-Select Mesmerize Type input selector and volume control
obviously check for noise issues first. if it's quiet-quiet, no need to get catholic on this (no pun intended, didn't remember a better expression)
Good industrial design and thoughtfulness can balance all that.
The human interface and technical performance are both important. They should go hand in hand through the design process.
The overriding organizing principle -- I want it this way because that's the way I want it -- might play a role too.
Some mocking up might be required.
The human interface and technical performance are both important. They should go hand in hand through the design process.
The overriding organizing principle -- I want it this way because that's the way I want it -- might play a role too.
Some mocking up might be required.
These Lorlin rotary switches are available as MBB or BBM...
I thought I'd read that BBM is preferred for input selection.
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...effort I went through to carefully measure and chop the VRDN heatsinks to fit 1U.
...
I really don't need more than 4.
Well, so did I, though I’m still with 1U (and therefore have space issues for volumecontrols, extension shafts and whatnot
I‘d stick with 4 connectors, and eventually add a nice dac ... phono will probably be difficult due to its sensitivity to ... noise.
I was originally going to build a full Salas setup (DCG3, DCSTB, I-Select) but ended up changing to BA2018 because the GB was taking a really long time. But also I changed to this project because people weren't freaking out about having the best of everything installed, e.g. >$100 pots and high end selectors. Trying to keep it simple for this attempt!
I'm going to try this as is, and it might work well! If there are noise issues, I will try things like mounting the transformers to the back of the front panel, since IIUC there is less noise as you get out of the plane of the toroid. I can try wrapping the toroids in my scrap mu-metal. Etc. If it still has an annoying hum I will start trying moving things around. But I'm not going to make big changes until I've heard it. I've seen smaller chassis builds with the transformer closer to the signal lines without problems being mentioned.
I'm going to try this as is, and it might work well! If there are noise issues, I will try things like mounting the transformers to the back of the front panel, since IIUC there is less noise as you get out of the plane of the toroid. I can try wrapping the toroids in my scrap mu-metal. Etc. If it still has an annoying hum I will start trying moving things around. But I'm not going to make big changes until I've heard it. I've seen smaller chassis builds with the transformer closer to the signal lines without problems being mentioned.
Oh, I wouldn't put the phono stage in the pre! It would be in another box (or I'd buy a ready made one). But honestly I don't own any vinyl, and it would be better for my bank account not to start looking for another way to spend $/€/£.
