Impedance matching 8ohm speakers to 4ohm sub
Perhaps a simple question: I have 8ohm Meadowlark Swallows driven by a custom-rebuilt vintage, 7591-based tube amp with the standard 4/8/16 ohm taps. I'm considering adding an REL sub with 4ohm impedance. If I use the High Level input to the REL, as apparently preferred by everyone on AudioGon, wont the amp see the 4ohm and 8ohm impedances in parallel from the speaker taps as 2.7ohms? Does this then preclude using the High Level input to the REL given I am using a tube amp. Almarg reply welcome.