Sure you could try an RCA to HDMI converter however it may be more finicky since HDMI also carries video.

Or get some speakers for the turntable starting with compact 4" Bestian $62.

More 4" powered speakers with Bluetooth for a small room or desktop setup:

• Edifier R1280DBs $159 $127.
• Klipsch KD-400 $329 $159 adds USB input for a computer.

Larger 5.25" passive speakers for a small to medium size room plus an amp or stereo receiver:

• 5.25" Neumi BS5 $109 passive speakers.
• Plus Fosi Audio BL20A $68 mini amp Bluetooth and a subwoofer output. 3.5mm input instead of RCA output so use the correct cable or adapter.
• Or Yamaha R-S202 $199 $99 stereo receiver with Bluetooth.
• Speaker wire, pure copper oxygen free 16 AWG. Then How To Strip Speaker Wire and How to Install Speaker Wire.

Or upgrade from the sound bar to an AV receiver and passive speakers?

Or what is a nearby town or zip I can search for used options? Reply here or chat.

Audio Guides, Speaker Placement, Accessories and Vinyl Care