Amp running at 4 ohms


Most vintage speakers run at 8 ohms or greater,JBL,Altec, so will a vintage McIntosh MC60 run a 4 ohm 89 db speaker with no problem?
gellis1
The problem may occur that onto 4Ohm and lower it will decrease power.
Having in mind 89dB speakers you might have large problems with dynamics and SPL.