Thanks curiousmuffin!   Yep, I concur. This circuit works well enough - and SOUNDS better than anything else I've tried, well almost...   For the "ultimate in sound quality", I do like putting another regulator out in front. The LD1085 3A adjustable regulators seem to sound really good...

see:  http://www.head-fi.org/t/654485/vitual-ground-regulated-and-rail-splitter-circuits  

Hi Wakibaki,   Well it turns out that that voltage regulator based virtual ground we were working with earlier in the other thread works OK after all. I had put a small wiring error into one of the prototypes and was scratching my head until I spotted it. For your perusal:   It's great for...

I want to use a TPA6111A2 with a split supply.   As you may know, it's pin-for-pin compatible with the old Nat'l LM4881. It's designed to be used with a single 5V supply - along with output capacitors.   Why I like this old chip is that it can easily drive 16 ohm loads - even small 8...

I want to use a TPA6111A2 with a split supply.   As you may know, it's pin-for-pin compatible with the old Nat'l LM4881. It's designed to be used with a single 5V supply - along with output capacitors.   Why I like this old chip is that it can easily drive 16 ohm loads - even small 8...

Wakibaki,   I removed only what might have been confusing. This thread overall has had a lot of activity while we were working out the "self adjusting" virtual ground using the LM317s/LM337s. Furthermore, as you may have noticed, I integrated the final results into the first post of the...

Sour grapes - porque so sour? How very childish some of these comments are! We apparently allow unsupervised, spoiled kids to post on this site, but something should be done about that...   The load itself (not shown here) demands more than enough quiescent current for the regulators to be...

RESULTS:   I got lazy and simplified the circuit again (practical considerations). The Voltage reference is an LM336Z. (KT88's suggestion)   You can see results here similar to those obtained earlier using 4ea 1N4148 diodes in series to create a 2.69V voltage drop. The main difference is...

Wow, fully untrue Wakibaki. I prefer my own tried and tested circuit - for reasons already stated repeatedly.   This whole virtual ground thread I started sure took off like wildfire, eh? Don't you also "just hate" my original post which started the thread? To each his own, child.

Hi Kim,   Um, that's not MY design, it's KT88's design you know.  But I like MY design because the voltage regulators HOLD the ground point in place, (either the iteration with two adjustable regulators or the original posting iteration with two fixed regulators and a pre-regulator). Even...

Oops! At least I can see who blew the whistle! Obviously, we should read the Service Agreements BEFORE we post! Thank you for your continual help WakiBaki. I guess that you will be seeing me as a different name soon. I am hoping all your simulations work out well. Sincerely, the guy.  

Long post is OK - lots to say  

KT88,   Thank you again. Do you like the TL431 series from ST Microelectronics?  see:  http://www.st.com/web/catalog/sense_power/FM1963/SC1771/SS1408/PF65361?s_searchtype=partnumber Could I burden you to draw the exact schematic you are describing? (Or at least the voltage divider section...

We certainly have been having fun here!

Hello KT88,   Good idea - the voltage reference. Um, I am not "against" that at all. Draw your preferred schematic for that and post it, please? However, it appears that this circuit, with or without a trimmer pot, works well for my application. The voltage regulators hold the ground point at...