MarkBass still offer dual connectors I believe. I have several of their amps and all have the dual connectors. Best solution to keep everyone happy.
My LM250 has a dual SpeakOn, and a separate 1/4", but honestly who use 1/4" with SpeakOn available. It's like using a truck vs a Yugo to haul ones gear.
I clipped off the 1/4" connectors from all my speaker cables but one, and put on Nuetrik's SpeakOn. It's so easy, a cave man can do it. The only cab I have left with 1/4" is an old Avatar guitar cab. That's because I still have my JCM800.
