I've demoed many times the whole Norse series in the same system and every step up in the series is an upgrade in the performance, so the Heimdall is better than the Baldur, the Frey is better than the Heimdall and so on.
BTW, as already pointed out, the Nordost cables should be breaked in with the Vidar or it will takes forever to show the best performance. I strongly prefer and always suggest to wire the whole system with the same series of cables (Nordost or not, no difference here) because I feel that it sound more coherent. And, Nordost cables are not forgiving on system's fault.
BTW, as already pointed out, the Nordost cables should be breaked in with the Vidar or it will takes forever to show the best performance. I strongly prefer and always suggest to wire the whole system with the same series of cables (Nordost or not, no difference here) because I feel that it sound more coherent. And, Nordost cables are not forgiving on system's fault.