Hello my fellow Burson HA-160 Owners,
I know, the HA-160 has since fell out of favour and is no longer the FOTM (taken over by the Soloist), however, I still find it to be an incredible amp for dynamic headphones. I have finally upgraded from a Meier Audio Corda Aria to the HA-160 as I was given an unbelievable deal on one of the last units in my local headphone store (cheaper than any price I have seen in the "For Sale" forum here or on e-bay). When I went in to purchase, I had the Soloist/Soloist SL plainly in sight of my scope, but offered with such a great deal, I couldn't bring myself to pass up on the HA-160 for a marginal increase in S/Q (at least when I auditioned in the store with the HD650, K701 and DT880).
As such, I left with the HA-160.
Now, my headphone collection:
Sennheiser HD650 (300ohms)
Beyerdynamic DT770pro and DT880 (both 250ohms)
AKG K701 (62ohms)
I have found that Burson's recommendation for the H and L impedance jacks isn't necessarily the best. L is rated to be 0-150Ohms while H is rated to be 150-500ohms.
I have generally found the L jack to be more laid back, smooth and warm. The H jack is a little brighter, with a little metallic edge to the sound signature. Surprisingly, I found that I much prefer the HD650 and DT770pro/DT880 out of the L jack even though they are all above 150ohms.
However, the K701, even though they are rated at 62ohms, I found that I much prefer it plugged into the H jack as I found with the L jack, the AKG gets too warm for my taste. Sounded muddy to my ears.
Was just wondering, anyone else found the same?