External speakers for SPDIF TV?

Feb 5, 2019
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I have an old Philips 47PFL3603D/F7 (https://www.usa.philips.com/c-p/47PFL3603D_F7/119-cm-47-inch-full-hd-1080p/specifications). It has SPDIF output & HDMI v1.3. I am wondering if I need SPDIF specific speakers or if SPDIF works with regular coax cables. Also, if I plug my game system & chromecast into the TV, will they play sound through the speakers or need to be plugged into the speakers directly to work?

Any help or speaker recs would go a long way. Shooting for ~$180ish.
 
SPDIF is oftentimes a COAX DIGITAL connection, and is old and outdated, unlikely to find in external speakers.

Fortunately for you, SPDIF is a close cousin of Toslink, add a gadget like THIS, and buy any active (self powered) speakers system with Toslink and you are done.
 
Feb 5, 2019
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So basically this will convert my digital coaxial to digital optical, which tends to be available for all newer speakers? Do you have any idea if I can expect my HDMI-connected devices via TV to play through my digital coax -> digital optical speakers without any issues?