burmar Posted October 1, 2018 Share Posted October 1, 2018 Hi I would like to go in the clean side with a couple of batteries 18650, but i measured them with a tester and the out voltage is 8.27V, not 7.4 like it must to be (3.7 x 2), at full charge they are 4.1 each one. Is it safe for the digione? Link to comment
burmar Posted October 1, 2018 Share Posted October 1, 2018 18 minutes ago, RX8R3ROD said: Hi, I measured mine at around 4 volts or just below when fully freshly charged, and they didn’t seem to do any harm as a pair, nor when I tried 4 of them into the clean side in the Allo battery pack, so I imagine you’d be fine. Hope you enjoy them, I think you’ll find them a pleasant experience ? Thank you... i'm going to test ? Link to comment
burmar Posted October 1, 2018 Share Posted October 1, 2018 Well, the battery power works perfectly, i could'not test it very well 'cause the late hour, but tomorrow i'll do it better... Question: I know you must power on 1st the clean side and after the dirty one what about power off? 1st dirty and then clean? Another thing, it seems to me that power connectors on digione are a little fragile, is it only an impression? ? Link to comment
burmar Posted October 2, 2018 Share Posted October 2, 2018 3 hours ago, allo.com said: Generally speaking clean power first...but since RPI tales a few seconds to boot you can also connect clean power a few seconds after. Powering both in the same time satisfies the clean power first (RPI boot time delay) So, just to be clear Power on = 1st clean and 2nd dirty (or maybe at the same time) Power off = 1st clean and 2nd dirty (or maybe at the same time) is it right? thanks!! Link to comment
burmar Posted October 2, 2018 Share Posted October 2, 2018 6 hours ago, RX8R3ROD said: I must admit I have both clean and dirty sides powered from a mains filter box, and I sometimes just turn it on and off, so that turns both on and off together ... and all seems to work ok (so far, anyway?)? Me too, but my mains filter box power on even dac, pre and power amplifiers... so it's not nice to power off all the stuff just to change sd card on raspy... ? Link to comment
burmar Posted October 2, 2018 Share Posted October 2, 2018 26 minutes ago, allo.com said: Only things that matter is power on sequence (you can power off however you want) Clean side first (or both in the same time , or while RPI boots/about 5 sec). As you can see its not very restrictive. Perfect, thanks so much!!!! ? Link to comment
burmar Posted October 2, 2018 Share Posted October 2, 2018 1 hour ago, allo.com said: Only things that matter is power on sequence (you can power off however you want) Clean side first (or both in the same time , or while RPI boots/about 5 sec). As you can see its not very restrictive. Just to understand If powered on in the wrong sequence what's happen? Just not working or blow up? Link to comment
burmar Posted October 2, 2018 Share Posted October 2, 2018 Ahahah.. Ok so nothing terrible, aliens invasion apart! ? Only software issues Link to comment
burmar Posted October 2, 2018 Share Posted October 2, 2018 11 hours ago, RX8R3ROD said: Look forward to hearing how you find the batteries in your tests ? Batteries power gives to signature a greater control on bass and clean even more all the sound, imho it's an upgrade on the upgrade against the linear power supply. Allo did a great job with this little hat!!! Link to comment
burmar Posted October 2, 2018 Share Posted October 2, 2018 17 minutes ago, RX8R3ROD said: Really pleased the batteries work for you! ? They sound great, don’t they? And yes, didn’t they do a great job with this little hat!! ?????? How many time batteries can power up digione? do you know how many hours of playing? (i'm talking about a couple of 18650) Yes, they sound great... this is for sure ? Link to comment
burmar Posted October 2, 2018 Share Posted October 2, 2018 Thanks I think about 25/30 hours of playing, not too bad... then, keeping another couple fully charged... the game can go on, or i'm wrong? Link to comment
burmar Posted October 2, 2018 Share Posted October 2, 2018 26 minutes ago, RX8R3ROD said: BTW, based on my experience (but not verified in other systems, so this is a sample of one using my system and my good / bad / average electricity supply, mains cabling, etc.) you can go quite a significant step beyond even battery power using an iFi iPower (I used a 12V model) and then regulating that using a linear voltage regulator to 5v. When the LVR circuit is fronted by a 1F Supercapacitor and fed into the clean side, the results are (IME) spectacular. I got an ifi-power 5V output... do you really think it's better than batteries? ? I'm using it to power up raspy at the moment and i didn't try it on clean side of digione Yes, timing, cleaning and chance to follow perfectly all instruments inside a track, it gives great and good food to dac input, so dac can work at its best possible (or nearly) Link to comment
burmar Posted October 3, 2018 Share Posted October 3, 2018 Is it possible to use rca and bnc output at the same time? Thanx Link to comment
burmar Posted October 5, 2018 Share Posted October 5, 2018 4 hours ago, SparkSpark said: Hello People, Anyone using a USB power bank to power the clean side and is happy with it? It's more convenient to charge it via USB. I have a 20k Mah RAV power that's good but occasionally cuts out (and comes back) - I suspect the current draw of the Digione clean side is just barely enough to keep it going. Other batteries I tried just won't turn on... Any suggestions are appreciated. I don't like too much power banks... they got inside some regulators and introduce noise... imho Better simple batteries... Link to comment
burmar Posted October 6, 2018 Share Posted October 6, 2018 8 minutes ago, RX8R3ROD said: This is the one I got from Amazon. If you search for DSD TECH 18650 Battery Holder with built-in 2 slots for Arduino and DIY it’s on Prime, so you can get it nice and quick (basically why I bought it ... ?) Hope that helps? Me too... the same holder ???? Not audiophile materials... but it works Link to comment
burmar Posted October 26, 2018 Share Posted October 26, 2018 3 minutes ago, RX8R3ROD said: I doubt you’d regret it! ? this is for sure!!!! ? Link to comment
burmar Posted October 26, 2018 Share Posted October 26, 2018 On 8/21/2018 at 6:49 PM, pjmcos said: We also decided to use 2 power supplies. The “dirty power” needs 5V /2-3A (RPI power). The “clean side” needs about 60mA and accepts anything from 5V to 29V. You can use anything on it, linear power supply or pure batteries power. Allo, can you confirm "from 5v to 29v"? I got an LPS with range from 15 to 24v to try on clen side, so it is safe... Link to comment
burmar Posted October 31, 2018 Share Posted October 31, 2018 9 minutes ago, nbpf said: I use two 5.5 x 2.5 to 5.5 x 2.1 adapters at the end of the cables that come with the DigiOne Signature. This is not an acceptable solution, in my view. One has effectively three terminations in a row (the 5.5 x 2.5 plug, the 5.5 x 2.5 to 5.5 x 2.1 adapter and the 5.5 x 2.1) for a total length of about 10cm. This is heavy, stiff, ugly and unnecessary. What Allo should do is to rethink the design of the board or at least provide cables with a 5.5 x 2.1 female plug. Everything else does not make any sense. If I'll keep the DigiOne Signature what I am going to do is to order a pair of https://www.ghentaudio.com/part/dc29.html cables of suitable length. i bought two of these.... https://www.ebay.it/itm/DC-5-5MM-x-2-1MM-to-USB-3-1-TYPE-C-MALE-CONNECTOR-ADAPTER-ANDROID-SMARTPHONE-ETC/222720290834?ssPageName=STRK%3AMEBIDX%3AIT&var=521575623212&_trksid=p2060353.m2749.l2649 Link to comment
burmar Posted November 3, 2018 Share Posted November 3, 2018 Today i tried a linear PS, a diy work... really good hand made from an audio forum friend.. I trigged it at 8v, less it is no good for it, don't want to burn it for heat dissipation, it is born for 12/24v, but... heatsink was really cold so i connect it to clean side and started to listen music. Well, the first thing was more bass and punch, then focus and cleanliness respect to the solution with two 18650 batteries. Maybe a friend that told me batteries have chemical noise was in right????? Link to comment
burmar Posted November 4, 2018 Share Posted November 4, 2018 7 minutes ago, RX8R3ROD said: The Signature is so transparent it seems to me just about anything makes a difference ... having one less parameter to play with is definitely helpful. ? Yes... it's true Today i discovered that my raspy was a little undervoltage, red led was blinking so i googgled for this So i raised up a little the PSU at 5.10v Sound is changed, in better. Link to comment
burmar Posted November 8, 2018 Share Posted November 8, 2018 12 minutes ago, dmormerod said: Could you use something like this for the clean side? https://www.amazon.com/dp/B01LRQDAEI/ref=emc_b_5_t Imho is not good, there are electronic voltage regulators inside and they introduce noise.. Link to comment
burmar Posted November 8, 2018 Share Posted November 8, 2018 On 11/7/2018 at 9:52 AM, RyanC said: Ok I will give that a try. On the Allo site is says to use LIFEPO (lithium iron phosphate) 18650 batteries which are 3.2v. In Hans Beekhuyzen's review he uses Li-ion 18650 3.7v. Is the LIFEPO recommended because they hold their charge longer or because of higher current etc. Advice is appreciated. I think LIFEPO batteries are better than LI-ION 'cause they have less chemical noise... Link to comment
burmar Posted November 8, 2018 Share Posted November 8, 2018 1 minute ago, dmormerod said: Thanks. I guess I'll plan on just using a battery pack! Yes, i think the best solutions are a battery pack or a very good linear PSU Link to comment
burmar Posted November 13, 2018 Share Posted November 13, 2018 Well, normally in all batteries the negative pole stands on the springs of the holder Link to comment
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