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LISA III Available for Order - Page 17

post #241 of 1070
I thought it would trickle charge? Normally a trickle charge is just enough to keep the battery at near full charge allowing for the energy loss by the battery that normally occurs when the battery is not in use.

By 30 days is that referring to the amp being left charging for 30 days?

Does the ps for this unit improve or enhance the sound in any way? What would be the advantage over the Elpac if it does not?
post #242 of 1070
Anyone have any thoughts on burning in this amp? I'm leaving town this weekend and will probably leave it connected to Elpac and running for three days. I assume this should work without problems.

I also have a new set of HD650s with a new Silver Dragon cable, so I definitely need to run some current through everything.
post #243 of 1070
Quote:
Originally Posted by flashbak View Post
jlingo,
This thread has alot of info in it. Please look it over since part #'s for the AC Adapter as well as a few vendors who carry that Elpac adapter were listed should you choose to go that route.
Thanks, I'm not really from The US. so for me to actually get an adaptor and an amp from two separate vendors would be a bit troublesome. It's best if Lisa III expedition come with an adaptor, well at least for international people like me. We prefer something simple in one order hehe.

By the way so sorry that I didn't have the chance reading through this thread. As you may noticed, I have been very busy replying and helping others concerning UE11 IEM

After a while there are just soo much to read in headfi nowadays, don't you think hehehe.
post #244 of 1070
Quote:
Originally Posted by gregeas View Post
Anyone have any thoughts on burning in this amp? I'm leaving town this weekend and will probably leave it connected to Elpac and running for three days. I assume this should work without problems.

I also have a new set of HD650s with a new Silver Dragon cable, so I definitely need to run some current through everything.
If you will be away that long, I suggest you remove the rechargable batteries out and leave the amp on for buning process by connecting it to Elpac. I use it this way too since I never carry it away as other porable amp.

Even I realize that it's quite safe to leave the batteries inside, but I still worry about heat and/or possible error of the battery.
post #245 of 1070
Yes, I would think anything in excess of 16/18 hrs continuous charge on the batteries will start leading to them heating up.
post #246 of 1070
rechargable battery is safe for using with PSU. Phil designed it for charging with limited current to 20mah so it will be safe as long as you don't put alkaline battery in there.
post #247 of 1070
Then it isn't really trickle charging them. I have batteries in a dac I built that ran for a couple of years at trickle with no problem.
post #248 of 1070
Quote:
Originally Posted by jamato8 View Post
Then it isn't really trickle charging them. I have batteries in a dac I built that ran for a couple of years at trickle with no problem.
Where did you read it was a trickle charge?
post #249 of 1070
It has been mentioned in these pages. I didn't read it on the web site but then I don't find that much info on the web site referring to this. If a recharge circuit is involved I don't understand why a trickle charge would not also be incorporated. I am just trying to find out how it works with batteries and if the new power supply being developed will enhance the sound quality.
post #250 of 1070
This is confusing. Perhaps PPL could weigh in.

My question: is it safe to leave the XP on and running with the Elpac plugged in for three days straight?
post #251 of 1070
ppl will probably have to chime in on that one and I think WindowsX is the only one with a PSU so he would have to say if it had any impact on SQ.
post #252 of 1070
It's safe. PSU makes Lisa III sounds better but not a lot. If you want to see WOW from PSU, you have to replace stock power cords and dc to dc cables with good ones. And that'll be the real WOW.

Anyway, Brad found good rechargable battery that can boost up lisa's running time to 8-9hrs. Good news for further products.
post #253 of 1070
So is that the PSU that will be sold with the Lisa III that you changed the AC and DC handling on?
post #254 of 1070
With the 24 volts wall wart the batteries are being charged with 14-18 mA. I believe three days of straight charging will cause th batteries to get pretty hot. I agree, we need ppl's input on this to clarify things.
post #255 of 1070
Here's a post by ppl on TriadAudio website:

by ppl on Mon Aug 06, 2007 11:49 pm
The Elpack will operate and charge both the XP and standard LISA. The internal changing circuits do not disconnect the internal batteries after specified of time so it is advisable to disconnect the charger from the standard lisa and perhaps operate the unit on batteries for 30-60 Min to deplete any slight overcharge that may have happened under very long intervals of as only use, this is more than 30 days. LISA takes a full 15 hours to charge the batteries on both the standard and Expedition models.

The same apply s to the optional LLP (Little Lab Power)LLP power supply.
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