Dead battery, internal short-cicuit probably. Still, try another charger first. GL

Quote: Originally Posted by Spiritboxer ... have you tried other op-amps aside from the AD797?... No, I haven't but I did read that the LT1028 is warmer, sweeter than AD797. Don't be discouraged by the fresh K701. Give them at least 300 hrs (24/7 with FM hard rock station) before...

My K701 after 500 hours are not sterile. In fact, those cans when fully matured are very musical if fed with good recording via good amp. You can find many opinions on H5 here and if you need a warmer amp, the XP-7 would certainly be a better choice with AD797 op-amp. More musical and refined...

Forget portable amps with those cans! You wouldn't be so cruel to the lovely K701, would you? XP-7 amp is a good choice, perhaps with AD797 that matches jazz well. ooops H5 is mains powered Anyway, I'd buy XP-7 for its opamp rolling.

Well, MarkyMark - my AKG K701 have 500 hours of burn in. The K701 are now fully matured for me. Maybe they are not in absolute therms, but for me those cans are real magic!!! Your new Solo, when matured after 500 hrs will beat all the other amps!

Quote: Originally Posted by davewhit Is this the newest one ? No my friend! It is the Solo MkII or MkIII (before 2004 model) OK, the Solo Mk III is silver plated, as the newer ones. No worries, you still have the music!

Quote: Originally Posted by charley phogg Yes ... Graham spent many hours tweaking it to get the sound of the Solo/PSU1. All of the mods were hardwired underneath the pcb. That's correct Charley - what's more, there are some other discrete parts of the mods ON the front PCB. `...

Quote: Originally Posted by davewhit Inside one It's 2008, isn't it? The Solo above is MkII. The Green one looks like 2007 model

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