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Review and Measurements of Massdrop THX AAA 789 Amp

Rottmannash

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I find it hard to let go of a really good amp as it is always possible to fit them in with new gear. I still have my vintage NAD 7125 also. I love the rear mounted heat sink and small form factor still. Also I love my 11 year old THX Select 2 Onkyo 608 receiver that runs cooler than my Denon x3700 that I am pre-outing to it from. My E30 dac can act as a preamp with remote volume also for more flexibility. $300 for an amp as good as the 789 is a worthy investment IMO.
Here's to NAD. I have 2 3140s and will never get rid of them.
 
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May 2, 2019
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I have an engineering question- is anything with DC-in power by definition a so-called 'virtual ground'? Asking because everything Schiit, JDS and the O2 are all AC-in but amps like this one have to create a negative rail. Is a 'virtual ground' how this is accomplished? Thanks.
 
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Someone can comfirm with measurements if crosstalk decreases in gain I to gain II particularly, is not only affected with SE output for headphones, but even balanced headphones output?
 
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