Speaker's amplifer minimum power recommedation
Speaker manufactures often list in their specifications a minimum amplifier power recommendation. Is that power recommendation into a standard nominal 8 ohm impedance, or is it a recommendation based on the speaker's published nominal impedance? I am looking at a speaker with a 4 ohm nominal impedance and the specifications recommend a minimum power of 40 watts. Is that 40 watts into an 8 or 4 ohm impedance?
@testpilot I've always assumed the minimum power was the 8 Ohm rating, since that's typically what's sold, but of course, if your speakers are 4 Ohms or less you also wan to make sure that amp has the current drive for it. Ideally find the minimum impedance, and/or the minimum effective impedance. So if your speaker maker recommends 50 W minimum, but is 4 Ohms you'll want an amp that produces 100W or close to it at 4. |
