https://www.techradar.com/reviews/audio-visual/hi-fi-and-audio/hi-fi-and-av-speakers/paradigm-signature-sub-2-691179/review
Paradigm Signature Sub 2 review | TechRadar
May 24, 2010 - The most powerful active subwoofer ever built...
paradigm signaturesub 2reviewtechradar
https://www.itpro.com/cloud/364676/new-signature-buys-paradigm-to-boost-portfolio
New Signature buys Paradigm to boost portfolio | ChannelPro
Feb 23, 2017 - The two companies previously worked together as a P2P network
newsignaturebuysparadigmboost