LiNKFOR 192kHz DAC Converter Digital to Analog Converter Digital Optical SPDIF Toslink to Analog Stereo Audio RCA L/R Audio Adapter with Optical Cable for HDTV Blu Ray DVD Amps (RCA Male)
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AI Verdict
This is a cheap, no-frills adapter for connecting a TV's optical audio output to older analog speakers, but only if your TV can output a PCM signal.
This converter is a strong fit for the very specific task of converting a digital optical PCM signal to basic analog stereo. Its low price and simple design are perfect for that job. However, its inability to decode common Dolby/DTS formats and mixed reports on sound quality make it a poor choice for anything beyond that basic need.
If you need to handle surround sound from streaming services or Blu-rays, look for a DAC that explicitly lists 'Dolby Digital' or 'DTS' decoding capabilities.
Regret Score™
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Pros
- Supports up to a 192kHz sampling rate, which helps provide clear audio.
- Includes a built-in 3.6ft RCA cable, so you don't need to buy one separately.
- Powered by a standard 5V 1A USB cable, often from a port on the TV itself.
- Extremely compact and lightweight at just 1.06 ounces, making it easy to hide.
- Simple plug-and-play operation once the source device is correctly set to PCM output.
Cons
- Does not support 5.1 channel signals like Dolby AC3 or DTS, which is a common source of user confusion.
- Some users report a noticeable background hiss or hum during quiet moments.
- Sound quality is described by some as thin, with a bias towards treble and lacking bass.
- Multiple owners report the device failing or getting 'knackered' after a few months of use.
Dimension Scores
Some users report it sounds thin and treble-biased, while others mention an audible hiss, placing it below average.
The built-in amplifier provides an acceptable signal level, but some users report a lack of bass extension or weight.
It provides the essential optical-in to RCA-out conversion, but its critical lack of Dolby/DTS support is a major limitation.
The unit is extremely small and light, but some user reviews mention concerns about its long-term durability.
Best For
- Connecting a new TV that only has an optical output to an old stereo receiver with RCA inputs.
- Getting stereo sound from a game console like a PS4 to a pair of analog powered speakers.
- A simple, budget audio solution for a secondary TV where high-fidelity sound isn't critical.
- Users comfortable with changing their TV's audio settings to 'PCM' or 'LPCM'.
Not Recommended For
- Home theater setups that use any form of 5.1 surround sound like Dolby Digital or DTS.
- Audiophiles seeking high-fidelity, distortion-free sound for a primary listening setup.
- Users who want a simple plug-and-play solution without needing to dig into TV settings menus.
Watch Out For
- You absolutely must change your TV's audio settings to 'Digital Sound Out: PCM'; otherwise, you will get no sound or just static because it cannot decode Dolby or DTS signals.
- Powering it via your TV's USB port can sometimes introduce a buzzing noise due to an unstable power supply; a separate 5V 1A wall adapter is recommended.
- Some users report it sending a loud 'click' or 'pop' to speakers when the TV is turned on or the source changes.
- It is not compatible with content from some streaming apps like YouTube or Netflix if they output in Dolby Digital Plus (DD+).
Full Specifications
| UPC | 711583416491 |
| ASIN | B072LGBNBB |
| Brand | LiNKFOR |
| Material | ABS |
| Item Weight | 1.06 ounces |
| Manufacturer | LiNKFOR |
| Mounting Type | Optical Cable |
| Interface Type | Optical |
| Number of Pins | 1 |
| Item model number | DAC Converter |
| Number of Channels | 2 |
| Product Dimensions | 82.68 x 2.4 x 0.04 inches |
| Maximum Supply Voltage | 5 Volts |
| Upper Temperature Rating | 70 Degrees Celsius |
| Is Discontinued By Manufacturer | No |
| Global Trade Identification Number | 00711583416491 |
What Buyers Say
The most common experience with this little box is relief mixed with a bit of frustration. It successfully solves the problem of connecting a new TV to an old stereo, but only after the user figures out they have to dig into their TV's expert audio settings and force the output to 'PCM'. Once that hurdle is cleared, it generally works as a basic converter. The convenience of the built-in RCA cable is a nice touch, but the sound quality is a toss-up. Some find it perfectly clear for TV dialogue, while a significant number of others complain about a persistent low-level hiss or a sound profile that lacks any real bass. Several users also report the unit dying after several months, so durability is a concern.
“I almost threw this thing out because I got nothing but static, but then I googled it and had to change a weird setting on my TV to 'PCM' and then BAM it finally worked and saved my old speakers from the dump!!”
Common Praise
- It's a lifesaver for connecting modern TVs with no analog outs to older, perfectly good stereo systems.
- The setup is very simple as long as you know about the required PCM setting on your TV.
- Its tiny size makes it easy to tuck away behind the entertainment center without a mess.
- The audio is clear enough for dialogue on TV shows and news.
- Includes both the optical and power cables, so you have everything needed to connect it.
Common Complaints
- A persistent, low-volume hiss or buzz is audible during quiet scenes.
- The sound quality is thin and lacks low-end punch, making music sound flat.
- It's not compatible with Dolby Digital, which causes confusion and makes it seem broken at first.
- Several users reported their unit stopped working entirely after a few months.
- The device can run warm to the touch during operation.
Ownership Tips
- If you switch inputs on your TV (e.g., from cable box to a game console), double-check that the audio output setting hasn't reverted from PCM.
- The red power indicator light is quite bright and can be distracting if it's in your line of sight.
- Don't lose the USB power cable; while standard, the connector head is small and you'll need one that fits the recessed port.
- The attached RCA cables are only 3.6ft long, which might be too short if your TV is wall-mounted high above your stereo cabinet.
Frequently Asked Questions
Why am I getting no sound or only static?
Your TV's audio output is likely set to Dolby Digital or DTS. You must go into your TV's sound settings and change the 'Digital Audio Output' format to 'PCM' or 'LPCM'.
Does this come with a power adapter?
No, it includes a USB power cable but not the wall adapter. You need to plug it into a 5V 1A USB port, either on your TV or a separate adapter.
Can I control the volume with this device?
No, this model does not have a volume control. You must adjust the volume on your amplifier or powered speakers.
Will this work with my Samsung or LG TV?
Yes, but you have to find the audio settings menu and set the output to PCM. For some models, you may also need to specifically turn on the 'external speakers' option.
I hear a buzzing or humming noise. How can I fix it?
This is often caused by 'dirty' power from the TV's USB port. Try powering the converter with a separate USB wall adapter to see if it eliminates the noise.
Does this work for surround sound systems?
No, it only converts to two-channel stereo (L/R RCA). It is not compatible with 5.1 channel signals.
Buying Guide
The single most important thing to know before you buy this is that your TV *must* have an option to set its optical audio output to 'PCM'. This converter is a translator, but it only speaks one language (PCM). It cannot understand surround sound languages like Dolby Digital or DTS, which many TVs use by default. If you can't change that setting, this box will not work for you, period. Think of it as a simple pipe, not a complex filter.
Digital to Analog Converter (DAC)
Your new TV speaks a digital language (light pulses via optical cable), but your old speakers understand an analog one (electrical signals via RCA cables). This box is the translator that converts the signal so they can talk to each other.
PCM/LPCM Support
PCM is the most basic, universal stereo language for digital audio, like a .txt file for sound. This DAC *only* understands PCM. It can't read more complex formats like Dolby Digital (which is like a .zip file with multiple channels), so you have to tell your TV to send the simple version.
192kHz Sampling Rate
This is like the 'pixels' of the sound; a higher number means a more detailed and potentially clearer audio signal can be processed. 192kHz is more than enough for this purpose, as most TV content is 48kHz.
Alternatives
If this converter's limitations are a dealbreaker, search for a 'DAC with Dolby Digital Decoder' or 'Optical to RCA with 5.1 support'. These models are designed to handle the more complex audio signals that this basic unit cannot.
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