Anyone heard the new ARC LS28 SE?

The preamplifier will need about 250-300hrs. At 100hrs it isn’t fully cooked yet.

Also, in my experience, the ARC preamps sound their best with XLR cables. 

@audphile1 

thanks Audphile1...I have it hooked up RCA right now so I can understand the differences between to the inputs so this is great to know. I will put a few days on RCAs then hit the XLR input for a few. My amp is fully balanced (I/O) so I think I should get some sonic improvement there. 

Definitely! XLR in and XLR out of possible. 

100 hours into breakin of Audio Research gear is not a good time to make appraisals of sound quality. It tends to get better (still not great) through 120 hours… then flip flops from good to bad for at least twenty to thirty hours. One definitely does not want to be assessing until at least 250 hours. It still improves through 600 hours, although not at as great a rate. There is a very very subtle improvement to 1,000..

Thanks @ghdprentice ...I let it run all night, listened some of today and listening now it’s definitely improved now sittiing at about 117 hours. I am literally stunned at how good this preamp is, and the synergy with my amp. It literally feels like I got a new DAC and a new preamp. I will reserve judgement until I get up around the 250 hour marker and also get it hooked up XLR, waiting for my new longer ICs to arrive next week. For now, it's a GIANT leap forward for my system. 

I had the AGD Audions in today for a short period as well before I went back.