I bought an Ampeg B4R under the assumption that it had Speakon connections. It shows them in the owners manual, but I later realized that it's only the export models that include them?? I'm using the amp in bridge mode, so my only other choice is to use the standoffs. I'd prefer to use Speakon if I could, so since the mounting locations exist for the speakon jacks, do you think it would be possible to install one and wire it? Has anyone ever done this?