It has
RCA audio out, for plugging it into more powerful speakers.
Not exact matches
When
RCA sneered at transistor radios, Sony captured the
audio market by first putting
out tinny pocket transistors for teenagers, then expanded its base with steady technological improvement.
To hook into your existing speakers, the Chromecast
Audio supports a 3.5 mm
audio out, as well as
RCA out and optical
audio out.
The
RCA line -
out jacks include a phono / line -
out pre-amplifier selector switch that allows you to attach the JTA - 490 to an external
audio player or to your home music system.
I think the simplest option in your case would be to get a standalone Bluetooth transmitter dongle (example: http://amzn.to/18aoLSe) and hook it up to the «dumb»
audio line
out on your TV — either the TV or your set top box should have a set of
RCA red / white
audio out connectors that are always active, even when the TV speakers are playing.
To tie in with your setup, the Chromecast
Audio has a 3.5 mm
audio out, as well as
RCA and optical outputs as well.