Well Im very fimilar with the ksa250 (owned 3 of them) and i currently run the rogue 120's magnums. That Ksa250 is no slouch. The 120's will bring out much more detail while they still have fantasic lowend control. The 120;s are not a typical Lush sounding tube amp they have a faster sound.
Check this out. Heres how I upgraded. Started with Von schweikert Vr-4. Rogue 120's. Fantastic sound, ran out of power sometimes. Changed amps the VTL 300's, sold them, Hurricanes, sold them, Cary v-12 sold it, rogue Zues, sold it. Spent$$$ on new Von schweikerts, bought another set of M120's. Thats where im at. Thers things I miss about every amp ive sold, 120's? addictive. ( just ordered a older Ksa200B for my lowend Biamp. keep your ksa250 for refrence you will miss it.
Check this out. Heres how I upgraded. Started with Von schweikert Vr-4. Rogue 120's. Fantastic sound, ran out of power sometimes. Changed amps the VTL 300's, sold them, Hurricanes, sold them, Cary v-12 sold it, rogue Zues, sold it. Spent$$$ on new Von schweikerts, bought another set of M120's. Thats where im at. Thers things I miss about every amp ive sold, 120's? addictive. ( just ordered a older Ksa200B for my lowend Biamp. keep your ksa250 for refrence you will miss it.