By the way, The Celestion C series are rated at 4 ohm impedence whatever that means. From what I have read so far, in practice it means I need a monster to drive them. The salesman I asked here in the NL told me that any 500NLG receiver would drive them no problem. He says that because they are 4 ohm, even though they are rated at 120 watt you only need a 70-80 watt amp to drive them. Funny but thats the exact opposite of what I've been reading here. Regards, Miro.