Hi Bill;
The manual on our website is quite out of date at this point, and actually predates the MPS2 itself. The BP1.5 ships with an XLR6 to DIN cable that allows it to plug directly in to an unused output on the MPS2.
The wording on the BP1.5 web page appears to be copied, pasted and edited from an earlier version of the page, and will be corrected shortly. No daisy chaining is required; sorry for the confusion here...
Thanks,
Mike