I've heard both and not just for a small amount of time--do yourself a favor and get the Tylers. Both are good, but only one captures the nuances of delicate or complex music. While the MKII will have better slam, the Tylers will give more liquidity and tonal balance.
And just as a sidelight--if you ever want to upgrade Tyler is very generous (after a year and a half of use he gave me 90% of the original price).
And just as a sidelight--if you ever want to upgrade Tyler is very generous (after a year and a half of use he gave me 90% of the original price).