Another fine alternative is the Nordost Valkyrja, which was between Qfil and Valhalla, i.e., the spot presently occupied by Tyr. Valkyrja was dropped from the line and replaced by Tyr. Valkryja is also a great buy in today's market since it is much lower priced than Tyr but is nearly identical in sound. Some have said the Valkyrja was superior to Tyr but Nordost felt it was too close to Valhalla at a much lower price, the reason why Nordost replaced Valkyrja. No way to confirm that, however.
I can say that when I replaced my Frey interconnects and speaker cables with Valkyrja, the improvement was very very significant all across the spectrum. I could never go back to Frey after Valkyrja.
When they were a current model in the Nordost line-up, published reviews of Valkyrja were superb, with one calling it 90% of Valhalla at 50% of the price.