I'm confused, are you running the Tyler speakers and the subs off the same EAR amps? Is this what you mean by "I effectively reduced it to 4 ohms"? If so, I would cease this practice immediately and get a powerful solid state amp to drive the subwoofers.
Can I run 4 ohms into 8 ohm speakers?
Hello, I went to EAR 890's as mono blocks. Set up as directed by EAR. I have Tyler Acoustic custom built 8 ohm speakers with 500 watt powered subs. When connecting to the EAR on the 8 ohm taps I effectively reduce it to 4 ohms. Since that time, I have blown 3 tubes total and took out one resistor. The problem has occurred on both amps. All tubes were new. The last incident occurred within 5 minutes of powering up! Has this been caused by the ohm issue? The tubes blew with great flare! Have I made the classic audioholic mistake of one tweak too many? Please don't chime in about "do you need this?" Looking for answers to the problem. Help me to understand ohms and mono blocking better!!