REL subwofer High Level vs Low Level connection

Thanks so much to Stanwal and Bdgregory for favoring HighLevel as I have heard that REL recommends it over Low Level input. Thanks especially to Almarg for your detailed analysis of impedance matching. I'm a Cornell EE and get it.

Why does Bobby at Merlin tell me to use my sub full range with his TSMXe speakers. Am i losing out bye doing what he says. Its his speaker, and he should know........Right.

Ryriken, I suspect that you mean that he says to use the main speakers full range, as opposed to high pass filtering their inputs (i.e., filtering out the deep bass content of the signals that are provided to them). That's a different question than what is being discussed here. Among other factors, the answer would depend on how well the main speakers can deal with deep bass frequencies. I have no doubt that his recommendation is correct for his speakers.

Elunkenheimer, you're welcome! Columbia EE here :-)

Best regards,
-- Al

I run my sub High Level.

Good for both ee types here . My question to add would be. Does an air gap opt affect group delay as E lags for inductor? lbsu me so idk.