Can amplifier X drive 2 ohm or 4 ohm speakers? How do I raise the impedance of a speaker from (say) 4 ohms to 8 ohms?
Almost any amplifier can drive almost any load if you don’t turn the volume up too high. Tube amplifiers are one exception. Some amps clip if you play them too loud. This is bad and damages speakers. Other amplifiers shutdown if they are asked to play too loud. Many will overheat, with bad consequences. However, in almost all cases, it takes seriously loud sound or low speaker resistance (less than 4 ohms) to do damage. Running two sets of 8 ohm speakers at once with common amplifiers represents a 4 ohm load. Four sets of 8 ohm speakers makes a 2 ohm load. Two sets of 4 ohm speakers also makes a 2 ohm load. If you stay sober and don’t turn it up past the point where it distorts, you are PROBABLY safe with most amplifiers and most loads. See 10.3 for more information. You can raise the impedance of a speaker by a few different methods. However, each has drawbacks. If your amplifier won’t drive your speakers, AND you are sure that the problem is that the speakers are too low impedance, y
