I got a DIY HE-6 speaker cable adapter yesterday and have been listening to the HE-6 via the speaker outs of my Leben CS300X. WOW. Best HE-6 sound I have heard yet. Using the headphone out of the Leben, I needed the volume at about 11:00. I can only just use 9:00 from the speaker outs, so there is more power available from the Leben's speaker outs than from its headphone out. But more importantly the sounds is SO effortless! Wow. Color me impressed.
Nice impressions Rob! I wonder if a speaker amp is needed to get the most out of the HE-6s?