Usually, no—not because of the higher resolution alone. A Sony Walkman can decode 24-bit files, high sample rates and, on supported models, native DSD. That proves capability, not a guaranteed audible improvement over a well-mastered 16-bit/44.1 kHz (CD-quality) file. Controlled listening tests generally find the difference small, difficult to reproduce or dependent on the listener, music, equipment and test method.
In practice, the mastering, headphones, fit, wired-versus-wireless connection and listening level usually matter more than the “Hi-Res” label. A premium player such as the Sony NW-WM1AM2 can be worthwhile for its build, storage, format support and amplification, but you should not buy it expecting every high-resolution track to sound obviously better.
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What “high-resolution audio” means on a Walkman
CD audio uses 16-bit samples at 44.1 kHz. High-resolution audio generally means digital audio with greater bit depth, a higher sample rate, or both—for example, 24-bit/96 kHz, 24-bit/192 kHz or DSD. The extra data can describe a wider theoretical dynamic range and ultrasonic bandwidth than CD audio.
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A Walkman’s Hi-Res designation means its hardware and software can process those formats under specified conditions. It does not mean the recording contains more musical information, that the mastering is better, or that a listener will hear a difference.
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The recording is often the deciding factor
Two releases of the same album may use different masters. A less-compressed, carefully prepared 16-bit master can sound more natural than an aggressively compressed 24-bit master. Conversely, a high-resolution download made from an inferior master will not become better merely because its file is larger.
When comparing formats, use the same mastering whenever possible. Otherwise you may be hearing a mastering change rather than a resolution change.
The complete playback chain matters
The audible result is determined by the file, Walkman digital processing, amplification, cable or wireless codec, headphones or earphones, fit, room noise and your hearing. Changing headphones can produce a readily audible tonal difference; changing from 16-bit/44.1 kHz to 24-bit/96 kHz may not.
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Sony states that every component in the system should be Hi-Res compatible to fully enjoy Hi-Resolution quality. That includes the source file, player, connection and output device. A Walkman can therefore be Hi-Res capable while the final system is not.
The cited Sony NW-WM1AM2 is a premium dedicated player. Sony lists High-Resolution Audio compatibility, native DSD playback, FLAC, WAV, Apple Lossless and other lossless formats, plus S-Master HX digital amplification. It also supports LDAC, aptX HD, AAC and SBC for wireless connections. Sony listed a US price of $1,399.99 at the time of retrieval; price and availability can change, so check the current listing before buying.
What S-Master HX changes—and what it does not
S-Master HX is Sony’s digital amplification system. A capable amplifier can provide adequate voltage, current and low noise for difficult headphones, and it can preserve a clean signal at normal listening levels. It cannot turn a poor master into a better one or make inaudible ultrasonic information automatically audible.
Native DSD is a format capability
Native DSD support lets the player handle DSD data without first converting it to another format in the playback chain. That may matter to a collector with a DSD library. It is not evidence that DSD will sound better than PCM from the same master.
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What controlled listening tests found
DSD versus high-resolution PCM
An Audio Engineering Society double-blind ABX study, “DVD-Audio versus SACD: Perceptual Discrimination of Digital Audio Coding Formats,” compared DSD with 24-bit/176.4 kHz PCM. The abstract reports that hardly any subjects could make a reproducible distinction and concludes that no significant differences were audible under the test conditions.
This does not prove that every possible DSD and PCM comparison is identical. It does show why a format label alone is a weak predictor of what you will hear.
A CD-quality bottleneck inside a high-resolution chain
Another AES Journal report, “Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback,” compared high-resolution playback with and without a 16-bit/44.1 kHz conversion loop. Across the tested systems and listeners, the loop’s noise became audible only at very elevated levels.
The result is relevant to real-world claims: a CD-quality stage in an otherwise high-resolution path did not create an obvious defect at ordinary listening levels in that experiment.
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The 2016 meta-analysis
A 2016 AES meta-analysis reviewed studies comparing high-resolution audio with standard 16-bit/44.1 or 48 kHz audio. It found a small aggregate ability to discriminate between them. Results varied with listener training, program material, equipment and test design.
“Small” is not the same as “zero,” but it also cannot support a promise that every listener will hear an upgrade. Trained listeners, unusually revealing systems and carefully selected material may produce different outcomes from casual listening.
Why the Hi-Res badge is not a guarantee
Bit depth and normal listening levels
Higher bit depth mainly increases theoretical dynamic range and gives engineers more headroom during recording and processing. A 16-bit release already provides a very large range relative to ordinary listening environments. In a quiet studio with high playback levels, equipment noise and hearing limits may still matter, but those conditions are not typical of portable listening.
Sample rate and ultrasonic content
Higher sample rates extend the theoretical frequency range beyond human hearing. Any audible benefit would have to arise indirectly—for example, from filter behavior or production choices—not simply because a listener hears ultrasonic tones. The evidence above does not establish a universal audible advantage from the higher rate.
Mastering and dynamic range
A different master can change loudness, clipping, compression and tonal balance by an amount that is immediately noticeable. This is why a fair comparison must keep the master constant and match playback levels. A louder file is often judged as better even when it is only louder.
Does Bluetooth cancel out Hi-Res audio?
Wireless playback can become the limiting stage. Sony says ordinary Bluetooth speakers do not meet Hi-Res specifications because of bandwidth limitations. Bluetooth audio is encoded by a codec before transmission, and the receiving device decodes it. The codec, bitrate and implementation determine how much of the original data survives the link.
LDAC is the relevant higher-rate option
Sony describes LDAC as its higher-rate wireless option and cites transmission up to 990 kbps—about three times the information rate of conventional Bluetooth audio. Both the Walkman and receiving device must support LDAC, and the connection may select a lower rate when radio conditions are poor.
LDAC can preserve more information than basic Bluetooth modes, but “higher-rate” does not mean lossless in every operating mode, nor does it guarantee an audible improvement. Headphones, fit, background noise and the quality of the master still dominate many listening situations.
What to use for a meaningful test
Use a wired connection for the cleanest format comparison. If you must use wireless, record which codec is active and keep that codec and its quality setting unchanged for every file. Do not compare a wired high-resolution file with a Bluetooth CD-quality stream and attribute every difference to sample rate.
How to test your own Walkman without fooling yourself
A controlled home comparison cannot reproduce every laboratory condition, but it can eliminate the most common sources of bias.
- Choose identical masters. Use the same album edition and verify that the 16-bit/44.1 kHz and high-resolution files are not different remasters.
- Use known-good wired headphones or earphones. Make sure the seal is consistent and the equipment is comfortable enough for repeated switching.
- Disable processing for the baseline. Turn off equalizer presets, sound enhancements and crossfeed so the first comparison changes only the file resolution.
- Match loudness. A small level difference can dominate the result. Use a meter or a carefully calibrated test process rather than relying on the Walkman’s volume number.
- Keep the player and settings fixed. Do not change the gain mode, headphone output, volume, source application or playback path between trials.
- Switch quickly between short passages. Choose vocals, cymbals, acoustic instruments and dense mixes, then repeat the same passages rather than judging an entire album from memory.
- Use blind or ABX trials. Have another person select A and B, or use software that hides the identity of the file. Record whether you can identify X above chance over multiple trials.
- Repeat on another day. If the result disappears when you do not know which file is playing, expectation was probably contributing to the impression.
If you use Bluetooth, note the active codec first. Sony identifies standard Bluetooth as non-Hi-Res and LDAC as the higher-rate option; do not call a codec-limited comparison a test of the Walkman’s wired capability.
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When a high-resolution Walkman can still be worth buying
You want one player for many lossless formats
Support for FLAC, WAV, Apple Lossless, DSD and other formats can simplify a large library. The value is convenience and compatibility, not an automatic sonic transformation.
You need a dedicated player and stronger amplification
A dedicated device can separate music from phone notifications, provide physical controls and offer an output stage suited to headphones that need more power. Whether that matters depends on your headphones and listening habits.
You value storage, battery design and build
Premium Walkman models may appeal for their interface, materials and dedicated playback experience. These are legitimate reasons to buy, but they should be evaluated separately from the audibility of 24-bit files.
You own genuinely better masters
If the high-resolution release is also a superior master, you may hear a clear improvement. Attribute that improvement to the mastering and production differences unless you have controlled evidence that resolution itself caused it.
When CD-quality files are the sensible choice
- You are buying the same master in both formats and cannot reliably distinguish them in blind trials.
- Your player output is wireless through a codec that does not preserve the full source data.
- Your storage, download bandwidth or library management makes larger files inconvenient.
- Your headphones, listening environment or typical volume do not reveal a consistent difference.
- You prefer a well-mastered 16-bit/44.1 kHz release over a louder or harsher high-resolution edition.
CD-quality FLAC is lossless, widely supported and usually much smaller than equivalent high-resolution files. It is not a compromise in musical content simply because a larger file exists.
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Comparing different releases
Symptom: One version sounds dramatically clearer or louder. Fix: Check album credits, release dates and mastering information, then level-match the files.
Trusting the player’s format display
Symptom: The screen shows 24-bit/192 kHz, so the track must sound better. Fix: Treat the display as confirmation of decoding, not proof of audibility.
Using Bluetooth without checking the codec
Symptom: A wireless comparison sounds different and the difference is blamed on resolution. Fix: Identify the codec, test wired first and keep all wireless settings constant.
Listening louder to the high-resolution file
Symptom: The high-resolution version seems more detailed after switching. Fix: Match levels before judging. Loudness bias is one of the easiest ways to produce a false preference.
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Expecting every Walkman to behave identically
Symptom: A result from one model is generalized to the entire range. Fix: Check the specifications of the exact model, firmware and output mode. The cited studies did not test every Sony Walkman, headphone, codec or listener.
A practical decision guide
| Your priority | What matters most | What Hi-Res changes |
|---|---|---|
| Most audible improvement | Mastering, headphones, fit, room noise and level matching | Usually small or uncertain |
| Large lossless library | Format support, storage and software compatibility | Convenient support for larger files |
| Wireless listening | Receiver capability and active codec | LDAC carries more data than conventional Bluetooth, but is not a universal guarantee |
| Hard-to-drive headphones | Output power, gain and impedance compatibility | Resolution does not replace adequate amplification |
| Objective proof before purchase | Blind, level-matched comparison using the same master | Lets your own repeatable result guide the decision |
Bottom line for Sony Walkman buyers
A Sony Walkman can reproduce high-resolution PCM and, on supported models, native DSD. The independent evidence does not show a large, universally audible advantage over CD-quality audio. Any difference is generally small and sensitive to the listener, material, equipment and test conditions.
Choose a high-resolution Walkman for its dedicated design, format support, amplification, controls or library experience. Choose high-resolution files when they provide a preferred master or fit your collection. If your only reason is the expectation that 24-bit/96 kHz must sound better than 16-bit/44.1 kHz, perform a blind, level-matched wired comparison first; the result may save you money and storage without sacrificing audible quality.
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