Can you replace two 16 ohm speakers in a combo amp with 8 ohm speakers as long as the impedance is set properly? - Quora
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Wiring Diagram for Two 16 Ohm Speakers Wired in Parallel for 8 Ohm Load - Guytronix
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Speaker wiring | TalkBass.com
8 Ohms or 16 Ohms? Vintage 30 - METAL Celestion Speaker Comparison - YouTube