Even if you had balanced ability with the servo box the woofers will never quite integrate. This due to the servo cables and the lead time of the accelerometers reporting back to the servo box.
The level on the servo box is there to allow you to match level with the high side amp(s). It really shouldn't be a problem.
There was a guy in Indiana some years back that made a balanced tube xover/servo box for the Betas, but he is long gone.
I fought with woofer matching with Betas for a number of years, I finally sold 'em off and haven't looked back.
I wish I could be more help to you.
Best,
beemer
The level on the servo box is there to allow you to match level with the high side amp(s). It really shouldn't be a problem.
There was a guy in Indiana some years back that made a balanced tube xover/servo box for the Betas, but he is long gone.
I fought with woofer matching with Betas for a number of years, I finally sold 'em off and haven't looked back.
I wish I could be more help to you.
Best,
beemer