[Ron Ramirez]

You can also use a PA line matching transformer such as this one:

https://www.ebay.com/itm/175587454272

Sacrilege? Not really. I installed one on a Philco 90 speaker (1-47) last week and it works just fine. (I used the black and brown primary leads, and the 4 ohm secondary even though the secondary impedance is just under 1 ohm for a 90 speaker.)

$10 for a line matching transformer, or $60 (or more) for a Hammond 125BSE 5 watt universal single ended output that likely won't sound any better.

Your choice.