FWIW, I do not have the 7U's but I do have the Linbrook Signature Systems which I drive with an all tube system to great effect. The drivers themselves are very fast and revealing although the way Tyler has implemented them in this model they seem to have a small dip in the upper mid range (which I actually prefer over some Dynaudio driver based speakers that I have). These speakers even sound quite good using a small Primaluna amp.
Re spec's, my Tyler system is spec'd to 25hz. In my room, using a RS meter and applying error correction, they are flat at 25hz, whereas my other speakers rated -3db at 28 produce significantly less bass in those frequencies. I don't think Tyler is fudging on the spec's at all.
Once broken in and set up optiminally in my room I found they produced and excellent sound stage, in depth width and highth (I think the latter may be enhanced over the shorter speakers by the addition of a mid range unit above ear level.) I haven't heard the Loreleis, but its hard for me to imagine what I might be missing.
Re spec's, my Tyler system is spec'd to 25hz. In my room, using a RS meter and applying error correction, they are flat at 25hz, whereas my other speakers rated -3db at 28 produce significantly less bass in those frequencies. I don't think Tyler is fudging on the spec's at all.
Once broken in and set up optiminally in my room I found they produced and excellent sound stage, in depth width and highth (I think the latter may be enhanced over the shorter speakers by the addition of a mid range unit above ear level.) I haven't heard the Loreleis, but its hard for me to imagine what I might be missing.