I used plastic standoffs - actually, plastic sleeves with stainless steel screws inserted from the bottom of the chassis and held with nuts on the top of the board.
After testing some coax I've used in the past and finding some high frequency rolloff from capacitance, I just went with short signal wires to the jacks. Since my unit has a remote PS and good shielding by the chassis, it didn't seem necessary to add shielded cable (results verify this).
EDIT to add: power cables are shielded, 4-conductor, same as umbilical.
After testing some coax I've used in the past and finding some high frequency rolloff from capacitance, I just went with short signal wires to the jacks. Since my unit has a remote PS and good shielding by the chassis, it didn't seem necessary to add shielded cable (results verify this).
EDIT to add: power cables are shielded, 4-conductor, same as umbilical.
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@mhenschel - the mounting holes are not tied to ground.
However, if you connect the board grounds to the TT ground post, you are grounding the boards to the chassis.
However, if you connect the board grounds to the TT ground post, you are grounding the boards to the chassis.
Yes, I realize that (and have been wondering if that's a good idea for a while now)
Thanks.
1) Metal.
2) The little coax is Mogami W2330. I absolutely love that wire.
3) 4-conductor mic cable is best for for the umbilical, like Mogami W2893
It just gets better… My neighbors are out of town so I can really let the system breathe. Loud for me is 80 dB at 2 meters away. 
I LOVE this phono pre. Playing records is even more fun and engaging than before. Discovering new depths within the grooves is a great experience.
I LOVE this phono pre. Playing records is even more fun and engaging than before. Discovering new depths within the grooves is a great experience.
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It just gets better… My neighbors are out of town so I can really let the system breathe. Loud for me is 80 dB at 2 meters away.
I LOVE this phono pre. Playing records is even more fun and engaging than before. Discovering new depths within the grooves is a great experience.
AWESOME... love the B&W..
Are you using a tablet as "media server"? I've been using an Android tablet with a USB-OTG into external DACs for several years now. I can't see how people spend kilo bucks on a "media server"...
Yes, the P3 really lowers the noise floor, huh? You can play at lower peak levels while still maintaining a healthy dynamic range.
Mind you, the P2 is no slouch.
If anyone wants to listen to their Pearl 3 with "rolling opamps" in a single blind test, shoot me a PM.
I'll send you some dual opamps whose part numbers have been sanded off and painted over with different colored paint. You won't know which is which and I won't tell you the ones that are, or are not, in your batch. Maybe I'll send you four sets of identical dual-741's (perhaps RC4558 etc) in different colored paints, because I am a sadistic baxter. Maybe I'll send you some bleeding edge Telleurium-Gallium-Phosphide military grade opamps on SOIC-to-DIP carriers, mixed in with TL072 and LM358. Who knows. Maybe the best of the best of TI and Analog Devices and Cirrus Logic, all mixed together. If you're willing to possibly make a fool of yourself by "hearing" superior performance from 60 year old dual opamps, ... let's party.
You and I will split the cost of the parts and the adapters and the postage, until you post a message here containing your listening evaluations. Then I'll send you the other half of the money --- and your net cost (in money, not reputation) will be zero.
Do I have a protocol which guarantees there is no lying or changing-your-mind about what color is what opamp? Yes. And it is so obvious you should be ashamed of yourself if you even think to ask.
Let's party.
I'll send you some dual opamps whose part numbers have been sanded off and painted over with different colored paint. You won't know which is which and I won't tell you the ones that are, or are not, in your batch. Maybe I'll send you four sets of identical dual-741's (perhaps RC4558 etc) in different colored paints, because I am a sadistic baxter. Maybe I'll send you some bleeding edge Telleurium-Gallium-Phosphide military grade opamps on SOIC-to-DIP carriers, mixed in with TL072 and LM358. Who knows. Maybe the best of the best of TI and Analog Devices and Cirrus Logic, all mixed together. If you're willing to possibly make a fool of yourself by "hearing" superior performance from 60 year old dual opamps, ... let's party.
You and I will split the cost of the parts and the adapters and the postage, until you post a message here containing your listening evaluations. Then I'll send you the other half of the money --- and your net cost (in money, not reputation) will be zero.
Do I have a protocol which guarantees there is no lying or changing-your-mind about what color is what opamp? Yes. And it is so obvious you should be ashamed of yourself if you even think to ask.
Let's party.
@tonyEE, totally agree on spending big for media servers. Though, convenience is king…
No, I don’t use a tablet for a server. The little tablet in my pictures is just to display what my server is playing. It was the cheapest display I could come up with.
I’ve been fully committed to the Logitech Media Server (LMS) ecosystem for more than 20 years now.
What once was several Squeezeboxes is now several Raspberry Pi’s running piCorePlayer. The Amazon Fire tablet display I use just has a browser window showing what’s going on with the local network LMS server via the ‘Material Skin’ plugin for the server.
No, I don’t use a tablet for a server. The little tablet in my pictures is just to display what my server is playing. It was the cheapest display I could come up with.
I’ve been fully committed to the Logitech Media Server (LMS) ecosystem for more than 20 years now.
What once was several Squeezeboxes is now several Raspberry Pi’s running piCorePlayer. The Amazon Fire tablet display I use just has a browser window showing what’s going on with the local network LMS server via the ‘Material Skin’ plugin for the server.@Mark Johnson Your scheme may present a lucrative gaming opportunity $$$ name that op amp. 