Is the WA5LE powerful enough for the HE-6 to shine, or do you need the full $6,000 WA5?
I've never tried the WA5, but the LE I tried was not powerful enough. The dealer had me try it because he was curious, and in the end we both agreed it lacked the depth and impact you'd expect.
That must have been the Old WA5 LE. The new LE has added a 4 pin XLR out with same power as WA5 (8 watts).
http://www.wooaudio.com/products/wa5le.html