What diagram do I use to have four 8-ohm speakers with a 4-ohm receiver? - Quora
Aiyima High Sensitivity Audio Speakers | 4 Inch 8 Ohms Full Range Speaker - 2pcs 2.5 - Aliexpress
How to connect four 8-ohm speakers in an 8-ohm amplifier? I have two channel amplifiers. Each channel I need to connect 4 speakers. Is that possible - Quora
What Will A 2, 4, or 8 Ohm Impedance Speaker Measure For DC Resistance?
What is the best way to connect speakers or cabinets? – MESA/Boogie Support
How Multiple Speakers Share Power - Geoff the Grey Geek