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Post by svart on Feb 5, 2015 16:34:31 GMT -6
BTW Are there any plans to offer this project as DIY? Nah, the boards are 90% smd and the rest is so simple that there is no monetary reason to offer kits. |
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druu
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Post by druu on Feb 5, 2015 16:58:14 GMT -6
Understood, just trying to find a way to scratch that itch.  |
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druu
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Post by druu on Feb 5, 2015 18:22:30 GMT -6
Were you still looking into the possibility of an external PSU? What voltages are required? I was going to suggest looking at the Meanwell desktop supplies, triple output, +/- rails and +5v all on a 5 pin plug.
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Post by svart on Feb 6, 2015 13:24:39 GMT -6
Were you still looking into the possibility of an external PSU? What voltages are required? I was going to suggest looking at the Meanwell desktop supplies, triple output, +/- rails and +5v all on a 5 pin plug. Yeah I looked at those I think. Honestly there were only a handful of bricks that I could have used, most were too expensive to be practical. Anyway, I went internal with the power supply system. |
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Post by svart on Feb 6, 2015 13:25:28 GMT -6
I have a unit with the proposed software on it now. I need to test it out in the studio, maybe tonight. I'll be bringing it up to Nashville with me on sunday for testing there, if it actually works well enough.
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Post by tonycamphd on Feb 6, 2015 13:30:28 GMT -6
Welcome, druu - how you like the Superbeast? I'm sure it sounds great...this project was kind've thought up as an alternative because of the 10 month wait on RM's products. Thanks John! The Superbeast is great, I use it for monitoring and have relocated the internals to my own 1RU case along with the TPA6120 headphone amp. Also installed a 10K Alps RK27 for level control, works out well. I'm actually hoping to use both 1794A and 4222 to replace the Apogee I'm currently using for my analog chain so this looks ideal! Agreed on the silly wait times with Ross, I had to wait 6 months then another 3 months for a replacement due to 'hiss' on the first dac I received. Cool! welcome to RGO, As far as the RM superbeast, i have the equivalent of 32 channels of those being built to feed my console, coming the first week of april, i hope it doesn't extend much beyond that. |
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Post by kcatthedog on Feb 7, 2015 5:47:00 GMT -6
Cool svart; hope all goes well, if you can possibly grab some cilps of audio ; a 2 buss mix with and without your box; that would be cool !
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Post by jimwilliams on Feb 7, 2015 10:33:25 GMT -6
My Ross Martin Dual Bare Beast died on me last December. I switched off the power strip instead of the unit first, when I re-powered it, it failed. There is a short as the power supply pulls very hard and the forward facing 1n5xxx rectifier diode heats up real quick.
I sent it back to Ross and he said it's not worth repairing, sad as that's about all I do here. I hope some parts like the expensive ADA4898-2 opamps can be salvaged. He said he will send me a brand new Superbeast as a replacement. I'll report if it's better than the last one. I bought it almost two years ago so that's about as good as customer service can get.
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Post by svart on Feb 7, 2015 11:21:30 GMT -6
My Ross Martin Dual Bare Beast died on me last December. I switched off the power strip instead of the unit first, when I re-powered it, it failed. There is a short as the power supply pulls very hard and the forward facing 1n5xxx rectifier diode heats up real quick. I sent it back to Ross and he said it's not worth repairing, sad as that's about all I do here. I hope some parts like the expensive ADA4898-2 opamps can be salvaged. He said he will send me a brand new Superbeast as a replacement. I'll report if it's better than the last one. I bought it almost two years ago so that's about as good as customer service can get. Interesting. I almost always shut off the whole studio via a main power switch, without turning any of the gear(besides computer) off first, and I've never had a failure. I've also unplugged and plugged these converters maybe a hundred times between the prototypes and never had a failure. I also have TVS devices on the rectified DC to squash inrush transients too though. |
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Post by kcatthedog on Feb 7, 2015 13:34:18 GMT -6
I luv how you guys get right into the gear talk, can you imagine christmas dinner with these two guys at the table and after a little ,,ah liquid refreshment:)
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Post by tonycamphd on Feb 7, 2015 14:57:50 GMT -6
My Ross Martin Dual Bare Beast died on me last December. I switched off the power strip instead of the unit first, when I re-powered it, it failed. There is a short as the power supply pulls very hard and the forward facing 1n5xxx rectifier diode heats up real quick. I sent it back to Ross and he said it's not worth repairing, sad as that's about all I do here. I hope some parts like the expensive ADA4898-2 opamps can be salvaged. He said he will send me a brand new Superbeast as a replacement. I'll report if it's better than the last one. I bought it almost two years ago so that's about as good as customer service can get. i wonder what the voltage running through that thing was? are the heat dissipators on the chip soldered to grounding plane on the pcb? my guess is he's probably mounting those on chips like pictured below now, and in sockets? I'm pretty sure the super beast uses single op amps 4898-1's i believe? i'm curious to how much of a diff you hear?  |
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Post by svart on Feb 12, 2015 15:59:13 GMT -6
Got notification that the DAC boards are shipping and should be here early next week. I've ordered the parts to do a couple prototypes, so we'll see how they turn out shortly!
In other news, I think the software for the menu and settings is working pretty well. My sound card isn't rated for more than 48KHz S/PDIF input, but it does sync to 44.1k and 48K correctly.
When I switch to 88.2K I get a lot of hiss, which is what I would expect for something with a receiver that cannot take the higher rate. Likewise, 96K has even more hiss, while 192K is just crazy. I'll definitely need to figure out how to test these properly.
I'm adding a "bump" to the bottom of the chassis so that I can use a much thinner thermal gap pad to help heatsink the regulators to the chassis. They aren't dangerously hot, but they get hot enough that I need to make sure they don't get any hotter!
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Post by kcatthedog on Feb 12, 2015 17:10:17 GMT -6
that sounds cool and hot !
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Post by Johnkenn on Feb 17, 2015 19:47:23 GMT -6
DAC boards ever show up, svart? |
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Post by svart on Feb 17, 2015 19:52:40 GMT -6
DAC boards ever show up, svart? Nope. They got stuck up in Kentucky due to the snow. They should be here later this week although UPS can't say when yet. |
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Post by Johnkenn on Feb 17, 2015 20:00:19 GMT -6
Same with my M7 mount...sigh...The wwaaaaaiiiiting is the hardest part...
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Post by category5 on Feb 17, 2015 20:18:23 GMT -6
Same with my M7 mount...sigh...The wwaaaaaiiiiting is the hardest part... Where'd you get one from in the end? |
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Post by kcatthedog on Feb 17, 2015 20:31:10 GMT -6
@jk dude petty wants 12% of that action so here you go, send him this email "The Ww,,," whew, dodged a royalty bullet there !
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Post by Johnkenn on Feb 17, 2015 20:47:06 GMT -6
Same with my M7 mount...sigh...The wwaaaaaiiiiting is the hardest part... Where'd you get one from in the end? Flea |
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ericn
Temp
Balance Engineer
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Post by ericn on Feb 17, 2015 21:09:09 GMT -6
Same with my M7 mount...sigh...The wwaaaaaiiiiting is the hardest part... Tom Petty wants his 2 cents |
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Post by kcatthedog on Feb 17, 2015 21:38:21 GMT -6
Where'd you get one from in the end? Flea crazy money ? |
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Post by Johnkenn on Feb 17, 2015 23:56:44 GMT -6
Just bought a flea mount...yeah, it was more expensive but got here quicker and was well made...
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Post by kcatthedog on Feb 18, 2015 10:48:27 GMT -6
Oh ya and probably mounts cap easier . max includes spacers so Tony will be able to dial in your saddle height perfect !
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Post by jimwilliams on Feb 19, 2015 9:54:55 GMT -6
My Ross Martin Dual Bare Beast died on me last December. I switched off the power strip instead of the unit first, when I re-powered it, it failed. There is a short as the power supply pulls very hard and the forward facing 1n5xxx rectifier diode heats up real quick. I sent it back to Ross and he said it's not worth repairing, sad as that's about all I do here. I hope some parts like the expensive ADA4898-2 opamps can be salvaged. He said he will send me a brand new Superbeast as a replacement. I'll report if it's better than the last one. I bought it almost two years ago so that's about as good as customer service can get. i wonder what the voltage running through that thing was? are the heat dissipators on the chip soldered to grounding plane on the pcb? my guess is he's probably mounting those on chips like pictured below now, and in sockets? I'm pretty sure the super beast uses single op amps 4898-1's i believe? i'm curious to how much of a diff you hear? The power rails were holding their voltage, it was getting very hot at the rectifier diode. All the chips worked, something in the DSP or clock board fried. Ross said it wasn't worth repairing. So, like the rest of you, I wait. |
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Post by svart on Feb 19, 2015 10:03:56 GMT -6
i wonder what the voltage running through that thing was? are the heat dissipators on the chip soldered to grounding plane on the pcb? my guess is he's probably mounting those on chips like pictured below now, and in sockets? I'm pretty sure the super beast uses single op amps 4898-1's i believe? i'm curious to how much of a diff you hear? The power rails were holding their voltage, it was getting very hot at the rectifier diode. All the chips worked, something in the DSP or clock board fried. Ross said it wasn't worth repairing. So, like the rest of you, I wait. That's interesting. Even with a chip shorting internally it's usually still more cost effective to replace the part rather than the board, unless there is a massive design issue that allows these types of failures to happen that he's keeping under wraps. I've worked for companies that had issues like this and just quietly replaced failed boards as they came in for service, all without telling the customer that the actual failure was caused by faulty design, and using the "cost effective" reasoning for full replacement.. |
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