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Post by Deleted on Sept 28, 2019 23:29:24 GMT
Looking into where to go next on the digital front, I got a reminder of the somewhat lauded Ian Canada pi based audiophile DAC from website Audiophonics.fr.
Seems there's a pi and DAC hat in this lot somewhere.
Gawd knows how it all fits together. Huge battery banks, isolators, dual mono boards..... Completely lost.
SQ, a guide wouldn't go a miss on building one if these, as I know you have done.
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Post by sq225917 on Sept 29, 2019 13:56:38 GMT
To cut to the chase. Rpi3 Fifopi 45 and 49 crystek cchd 957 clocks Dual 9038 dac board Transformer output board 2 lundahl 1544a traffos Lifepo battery board 4x 26650 a123 lifepo batteries 1tb samsung 860 evo ssd 3x 1.5f avk 5v supercaps 1x ess controller board 1x laptop smps rated at 5 amps 19v to run the lifepo from.
That's it.
Actual build process is too complex to write out on my phone. Basically you build the psu with 4 battery rails. 1x fifopi, 3x dac board with supercaps,and use the direct lt3045 2 amp x 5v rail from the lifepo for the pi.
There's various bits that need switching, disconnecting, to use this way without blowing it up. With a soldering iron I could have it all up and running in an afternoon.
Flash moode to an sd card and you're done.
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Post by sq225917 on Sept 29, 2019 13:57:17 GMT
At least one of these will be running at the Sheffield bake off.
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Post by Deleted on Sept 29, 2019 14:03:58 GMT
You make it sound so simple lol.
Looks like it isnt one for the amateur
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Post by macca on Sept 29, 2019 14:06:09 GMT
. With a soldering iron I could have it all up and running in an afternoon. How long would it take you without a soldering iron?
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Post by Deleted on Sept 29, 2019 14:08:27 GMT
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Post by sq225917 on Sept 29, 2019 16:30:09 GMT
3 power rails on the dac. It's a dual 9038qm ess dac.
You need to solder, transformers, caps and clocks. The new battery board has battery holders.
The tricky stuff is the dip switches for dac settings and on board regulator bypass.
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Post by sq225917 on Sept 29, 2019 16:31:27 GMT
Pi needs 2 amps x 5v, dac and fifo pi need 4x 3.3v between them, notionally any psu would do.
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Post by Deleted on Sept 29, 2019 17:04:25 GMT
3 power rails on the dac. It's a dual 9038qm ess dac. You need to solder, transformers, caps and clocks. The new battery board has battery holders. The tricky stuff is the dip switches for dac settings and on board regulator bypass. Oh, I'm with ya. SO any PSU throwing out the right juice will do the job. Cool Has yours been worth the aggro?
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Post by sq225917 on Sept 29, 2019 18:55:28 GMT
Worth the hassle, without a doubt. The minimum psu requirements are 2x 3.3v at 150mA, and 1x 5v @ 2 amps to power the pi. It does respond very well to psu upgrades, in fact on stock clocks, basic psu etc its distinctly average.
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Post by Deleted on Sept 29, 2019 19:10:52 GMT
Worth the hassle, without a doubt. The minimum psu requirements are 2x 3.3v at 150mA, and 1x 5v @ 2 amps to power the pi. It does respond very well to psu upgrades, in fact on stock clocks, basic psu etc its distinctly average. Ah OK. Expect a few messages if I go ahead lol Won't be for a while though, I need to sort my phonostage out first. I haven't got one lol
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Post by sq225917 on Sept 29, 2019 20:35:44 GMT
Yeh, no worries
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Post by Deleted on Sept 29, 2019 21:01:51 GMT
IAN Canada's Mad Pi.
I can think of no stupider title for a thread at the moment.... I had to read the fuker to actually partly understand wtf you were on about Ollie.
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Post by Deleted on Sept 29, 2019 21:05:00 GMT
IAN Canada's Mad Pi. I can think of no stupider title for a thread at the moment.... I had to read the fuker to actually partly understand wtf you were on about Ollie. Lol, i suppose it made enough sense to those who are interested in Pi audio.
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Post by Deleted on Sept 29, 2019 21:06:07 GMT
WTF is that? Can you get a case for it to make it look reasonably decent?
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Post by Deleted on Sept 29, 2019 21:08:03 GMT
WTF is that? Can you get a case for it to make it look reasonably decent? NOPE, it's ugly but it's supposedly awesome. I can hide it lol
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Post by Deleted on Sept 29, 2019 21:11:05 GMT
Just burn it.
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Post by Deleted on Sept 29, 2019 21:41:47 GMT
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Post by Deleted on Sept 30, 2019 19:06:40 GMT
Interesting development tonight.
I contacted Ian a couple of days ago to get some info on the Build and he replied today.
Obviously, it didn't make a whole heap of sense initially so after reading his Github page and finding the manuals for the various pieces, I felt I'd gained a decent idea of how everything connected up. All good.
What wasn't clear, my own fault as I missed the information, was whether the big battery bank had enough juice to power the whole stack. Of course, it does. I sent another message about it
However, I have to admit that Ians reply was a little bit..... Arsey.
I'll paraphrase to avoid finding the message but it essentially told me that it was above my ability so I should look elsewhere for something more "plug and play"
Yup, I was a bit taken aback by that as:
1, Nothing is beyond my capabilities, I just haven't looked into this area yet.
2, It wasn't the inclusive attitude I've come to expect from the fraternity at DIYaudio.
I replied simply that he was right, and I'd look elsewhere for something more simple. No need for conflict I thought. He obviously doesn't need the sale so no worries.
A little later, I got a message from Ian apologising for his message and hope he hadn't hurt my feelings. Well, he hasn't hurt my feelings but after his initial response earlier I went and bought the Orchard Audio PecanPi instead.
That'll do me now untill I can afford a Mytek Brooklyn Bridge. Then that'll be the digital side sorted.
Just goes to show how important each interaction is.
Even if my questions are rudimentary, the sale depends on the confidence I have in the sellers support. Today he lost a $600 sale and got poor feedback instead.
For someone like me who's "learning on the job" the idea that support is available from the maker is absolutely paramount to me giving things a go.
I've said it before, if Firebottle wasn't on my doorstep, I'd take far less risks. Knowing he's there to bail me out is massivly important.
Oh well, time to find a LPSU for the PecanPi
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Post by macca on Sept 30, 2019 19:19:38 GMT
Either he really didn't need the sale or he's not cut out to be a salesman.
A Brooklyn Bridge was something different in my day.
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Post by Deleted on Sept 30, 2019 19:25:25 GMT
Either he really didn't need the sale or he's not cut out to be a salesman. A Brooklyn Bridge was something different in my day. No idea Macca but as I say, I'm not offended and agree that I'd probably have needed a bit of guidance at some point, but telling someone to go find something simpler is taking the piss imo. There are ways to say..... "This could be a bit complicated with your current understanding" 🤣 I dread to think what that meant in your day lol
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Post by macca on Sept 30, 2019 19:30:37 GMT
This: I don't know what you were thinking lol
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Post by Deleted on Sept 30, 2019 19:41:05 GMT
This: I don't know what you were thinking lol Hahaha
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Post by sq225917 on Oct 1, 2019 16:52:18 GMT
English is his second language and he can be rather abrupt. It isn't a simple build due to the fact there's many options for each part, rather than there being any one thing that's hard to grasp.
I'm sure you'll be happy with the pecan, it gets good reviews.
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Post by Deleted on Oct 1, 2019 17:47:39 GMT
English is his second language and he can be rather abrupt. It isn't a simple build due to the fact there's many options for each part, rather than there being any one thing that's hard to grasp. I'm sure you'll be happy with the pecan, it gets good reviews. The thing i didn't grasp initially was the language. "Fifo"........Who would know what that is if you were on the outside looking in? To be honest, i'm not sure many folk would look at that and think it was easy to knock up, but with a bit of reading i am getting a much better grasp of whats to be done. I may revisit this when i have become a little more fluent in the acronyms and such. As for the PecanPi, i have had one here on two separate occasions, at different points of the production and the most recent one was superb. I just wasn't ready to make a move in the digital side. That's happening now and i suspect there is more to come on that side. The truth is his English is far better than my second language so fair play to him, but the communication side of things is so important when you're dealing with potential customers or even just people asking a few questions. They may not buy from you now, but if you gave the advice in the right nature, they are more likely to come back at a later time if they had a good experience. That's where i was aiming my post earlier.
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Post by sq225917 on Oct 1, 2019 18:10:28 GMT
I would never buy off anyone I didnt hit if off with either.
Fifopi, first in first out pi buffer, isolator and asynchronous reclocker.
Lifepo, lithium iron polymer offline battery power supply board.
Essdual dac, dual 9038qm dac board.
Ivstd, current to voltage converter, OP-amp out stage.
Transformer iv, transformer output stage board.
Ess controller, dac board controller, volume, dsd, pcm selector, data rate control board, a digital preamp controller.
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Post by antonio on Oct 1, 2019 18:28:50 GMT
Look on the bright side Oli, he could have done you a favour.
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Post by Deleted on Oct 1, 2019 18:51:37 GMT
I would never buy off anyone I didnt hit if off with either. Fifopi, first in first out pi buffer, isolator and asynchronous reclocker. Lifepo, lithium iron polymer offline battery power supply board. Essdual dac, dual 9038qm dac board. Ivstd, current to voltage converter, OP-amp out stage. Transformer iv, transformer output stage board. Ess controller, dac board controller, volume, dsd, pcm selector, data rate control board, a digital preamp controller. I'm going to study that cheat sheet lol Ta!
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Post by Deleted on Oct 1, 2019 18:52:33 GMT
Look on the bright side Oli, he could have done you a favour. Yup, true enough. I am a big believer in when things are meant to happen, they happen easily. If you have to force it, it's not meant to be. I kind of live by that.
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Post by alit on Oct 1, 2019 19:55:14 GMT
At least one of these will be running at the Sheffield bake off. Look forward to hearing it Simon.
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