The Sony HT-CT390 is a specific 2.1-channel soundbar system with a separate wireless subwoofer. If you are checking a used listing or setting up a unit you already own, the important questions are whether the matching components are present, how your TV sends audio and whether the system works correctly.
This guide focuses on the HT-CT390 itself. It is an older model documented in Sony’s 2016 manuals, so assess any current offer by its actual condition and contents. A listing for another Sony speaker, receiver or soundbar does not describe the same system.
Identify the exact HT-CT390 system
Sony HT-CT390 Soundbar with Wireless Subwoofer, Black, One 2.1-Channel System
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Sony’s support page identifies the SA-CT390 bar, SA-WCT390 subwoofer and RMT-AH200U remote among the system’s components, while noting regional variation. Ask for photographs of the labels when buying secondhand. A bar-only offer is an incomplete purchase if you expect the matching bass unit.
The linked Amazon catalog entry identifies model HTCT390 and UPC 027242893481. That identifies the product page, not a promise about the condition, accessories, warranty or stock of a particular seller’s offer. Read those details separately before buying.
What the HT-CT390 does
Sony’s specifications describe a 2.1-channel system with 300W total stated output, HDMI ARC, optical and analog inputs, USB audio playback, and Bluetooth with SBC/AAC support. The bar is about 35.43 inches wide and 2.05 inches high. The subwoofer is a separate powered unit.
Its S-Force PRO processing provides a virtual surround effect. There are no separate rear speakers or dedicated center channel in the supplied two-channel bar. Do not buy it expecting an Atmos or eARC system, and do not compare its stated wattage directly with an unrelated product’s rating as though that proves loudness or sound quality.
For a small, straightforward TV setup, the useful question is whether these connections meet your needs. If you already own it and the sound is satisfactory, a new TV alone is not a reason to replace it. Check the new television’s outputs before deciding.
Connecting it to a television
Use Sony’s HT-CT390 startup guide alongside your TV’s instructions. Its connection diagram distinguishes televisions with an HDMI input labeled ARC from those without it.
- TV with ARC: connect the TV’s ARC-labeled HDMI port to the soundbar’s HDMI OUT TV (ARC) port using a suitable High Speed HDMI cable.
- TV without ARC: use the TV’s optical digital audio output and the bar’s optical input. An ordinary HDMI input without ARC does not send TV sound back to the bar by itself.
- External players: connect a console or streaming player to the TV as appropriate. The HT-CT390 has no separate HDMI input for passing that player’s video through the soundbar.
Check the audio-output selection on the TV as well as the physical cable. A cable plugged into the correct-shaped socket does not establish that the television is sending sound through it. Also check whether your television’s remote can control the chosen audio route in the way you expect.
Keep cables accessible while confirming the setup. If you are replacing a TV or moving furniture, establish working sound before concealing cables, fastening brackets or putting the cabinet back against the wall. That makes a wrong input or damaged cable much easier to find.
If there is no TV sound or no bass
In the HT-CT390 operating instructions, Sony specifies AUD > TV AU > AUTO for HDMI ARC, or OPT for the optical route. Confirm the selected input and remove mute before changing more advanced settings.
For the subwoofer, check its power connection and indicator. Sony documents green for a normal bar connection and orange for Secure Link. If it is not linked, follow the model-specific Secure Link procedure on pages 21–22 rather than trying ordinary phone Bluetooth pairing. SW volume is separate, and a source with little bass is a poor test of subwoofer output.
If basic checks fail, use the manual’s troubleshooting section. Its reset procedure restores settings, so record your setup before using it. Persistent malfunction, damaged cables or signs of overheating call for qualified service rather than opening a mains-powered enclosure.
What to check before buying one used
- Confirm the pair. Get clear photos of the bar and subwoofer model labels. “Sony wireless subwoofer” alone is not a sufficient compatibility description.
- Ask for a demonstration. Have the seller show TV audio, changing volume, the remote and bass from the supplied subwoofer. If you need Bluetooth music, check that function too.
- Inspect the condition. Look for damaged grilles, loose sockets, frayed power cords, missing feet and evidence of rough storage. Ask about any intermittent faults.
- Check the accessories you will need. Identify the remote, cables and mounting pieces included in that offer. Price missing pieces before deciding that the total is worthwhile.
- Check the return arrangement. A demonstration does not establish long-term reliability. Understand what happens if a fault appears after delivery.
A low purchase price is less attractive when the remote is absent, the bass unit does not link or a repair is already needed. Compare the complete cost with another system that meets your requirements. Do not assign value to features you will never use merely because they appear in a long listing title.
Placement and everyday use
Measure the space in front of your television and make sure the bar will not obstruct the screen or the television’s remote sensor. Leave access for cables and ventilation. For wall mounting, use the correct instructions, brackets and support for your wall; do not infer screw or anchor suitability from a listing photograph.
The subwoofer’s wireless audio connection reduces the need for a signal cable between the two units, but it still needs power. Include the outlet location in your placement plan. Start at a modest volume and assess the setup from the seat where you normally watch.
Should you keep it, buy it or move on?
Keep a working HT-CT390 when its connections and sound already meet your needs. Consider a complete used system only when the condition, included parts and total cost make sense. If your requirements include a dedicated center channel, modern immersive-audio formats or a specific external-device connection that this model lacks, compare systems designed for those requirements before spending on repairs or missing accessories.
Image note: AI-generated editorial illustration; not a photograph of the named product.
