I’ve presently got what you would call a starter system, which is an Onkyo bundle, a HT-S3405. The receiver is a HT-R390 and the speakers that came with it are rated at 6 ohms. I want to replace both the speakers and the receiver but probably have to do it in stages. (I’m looking preferably at the Yamaha RX-V575 or the maybe the Onkyo TXNR 515). I’ve pretty much decided that I want the Tannoy HTS101 speakers. Or maybe the Wharfedale DX1 HCP... My concern is, and excuse any ignorance as I’m not particularly clued up, if I buy the Tannoys now and plug them into my current receiver, can I for the time being continue to use the passive subwoofer - SKW-348 - that came with my current speakers? The current receiver doesn’t have Active Sub support but would like to use the Tannoys with my old sub (instead of the new Active sub that comes with them), until a time that I can change for a new receiver. The Tannoys are rated at 8 ohms according to spec. I just want to make sure I'm not going to cause any damage to the speakers or the amplifier.Hope someone can help or advise,Thanks, Gavin