I have a Zu Mini Method, which is a powered sub. I don't have a preamp and I'd like to integrate it into my system, which is a Modwright Transporter and a Spectron Musician III SE MKII. I know I could use the XLR outs on the Transporter (which I'm not currently using) but I'd rather not go this route.
I know that I can tap signal from the amp's speaker connections and run them into the Hi-Level input of the sub, which I've done before with success. What I'm wondering though is, is there any difference between going this route and tapping signal from the speaker's binding posts? I'm asking because my Spectron MIII has the older binding posts which are not 5 ways so I can't connect bananas to them. I don't know if electrically these two configurations are the same as far as the load the amplifier sees, and also performance-wise. Again, to reiterate, the two configs I'm considering are 1) running an extra pair of wires from the Spectron MIII's binding posts to the subwoofer or 2) running a pair of wires from the binding posts of the left and right speakers (using banana connections so as not to get in the way of the spades that are the primary connections to the Spectron MIII) to the sub as a way to get signal to the subwoofer's plate amp.