You CAN use the Bose 901 EQ with most all modern receivers (for just $20).\nThe Bose EQ has to be "between" the source (CD, Sirus\/XM radio, computer, Amazon Alexa, etc.) and the power amp. So you plug in all of your music sources into an audio\/video switcher. The switcher output then goes into the input jacks of the EQ. The EQ output goes into the AUX (or whichever) input of the receiver. I just keep my receiver always on AUX and choose which source I want to listen to on the switcher.\nRCA or GE Pro 4-Device Audio\/Video Switcher - $20 at Wal-Mart.\n\nEven older post now lol. Will this switcher work with optical sound output from modern tv? I just bought new tv and want to get new receiver that can handle the optical audio from the tv and use the 901 speakers. Thanks if you can help me!