Pete! simply beautiful, beautiful, beautiful...
..and the 'elusive as kitten mittens' matching green Canadian pigtail power hose! Damn nice. Doug is a Wonder Worker alright and found for me the green regular 89 hose with finger trigger and green clamp-on spiral power cord. It's top of my must-do list while in Winnipeg in December to make the 8 hour drive further west to Moose Jaw for another Canadian Micro Meet.
I concur these Canadian 89s are the quietest and most powerful Electroluxs of all.
In my engineer's opinion it has less to do with motor size & wattage than intake and exhaust orifices on Canadian models, which are designed with less airflow restrictions than the American models as are the hose couplers, compared side by side.
While the inside & outside diameter of the flexible hose and handle end are the same for both countries, the entry & exit port sculpting of the Canadian canister tapers smoothly from 1.5" to 1.25", transitioning the taper from the hose coupler. American LX, E, AE, etc have a more 'stepped ring' port design that sets up noise producing bumps in the air flow, whether the hose is attached or not.
American XXX's have ports similar in design as Canadian 30 & 50 canisters which contributes to XXX's reputation for running with a zephyr hush rather than a soft roar.
Canadian hose couplers begin a full 1/4" larger at butt end and taper down to the 1.25" hose diameter. American hose couplers are a straight shot that begins at 1.25 ID, which introduces another jetstream bump when connnected. I sampled 23 hoses & 10 Electrolux models to come to this Can/Am conclusion.