The marketing language around DAC chipsets reached peak absurdity sometime around 2018. “Features the ESS Sabre ES9038PRO for reference-level conversion.” “AKM Velvet Sound technology for a natural, musical character.” “R-2R ladder network for true analog sound.”
In 2026, the signal-to-noise is louder than ever. This article attempts to cut through it and give you a technically grounded understanding of what DAC chipsets actually do, which differences are measurable vs. audible, and how to use this information to make better purchasing decisions.
What a DAC Chip Actually Does
A DAC (Digital-to-Analog Converter) chip converts a stream of binary data (zeros and ones representing audio samples) into a continuously varying voltage that your headphones or speakers can turn into sound. The core performance metrics are:
- Dynamic range / SNR (Signal-to-Noise Ratio): How far above the noise floor the loudest signal sits. Measured in dB. Higher is better.
- THD+N (Total Harmonic Distortion + Noise): The ratio of harmonic distortion products to the original signal. Lower is better. Expressed as a percentage or in dB (negative).
- SINAD (Signal-to-Noise and Distortion): A combined metric; effectively a single number representing overall analog performance. Higher is better. The gold standard measurement from audio measurement sites like Audio Science Review.
- Jitter: Timing errors in the clock that controls conversion. Manifests as high-frequency noise sidebands. Good DACs reject jitter at the input and use their own internal clock reference.
The Major Chipset Families in 2026
ESS Technology (Sabre Series)
ESS Sabre chips (ES9038PRO, ES9039MPRO, ES9038Q2M, ES9218P) are the measurement champions. They routinely achieve SINAD figures above 120 dB in well-implemented circuits, and the flagship ES9039MPRO has measured above 130 dB in devices like the iBasso DX320.
Sonic character: Neutral to slightly forward, with extended treble and precise imaging. Critics historically described early ESS implementations as “sharp” or “edgy” — a fair characterization of aggressive noise shaping at the time. Modern ESS designs with appropriate filtering are substantially improved.
Implementation sensitivity: High. ESS Sabre chips are demanding to implement well. A poorly filtered power supply, inadequate clock isolation, or incorrect I²S configuration results in elevated noise. Many budget devices use ESS chips and measure poorly because the implementation is sloppy. The chip itself is not the problem.
Used in: FiiO K7, Topping DX3 Pro+, FiiO Q7, iBasso DX320, many others.
AKM (Asahi Kasei Microelectronics)
The AKM AK4493SEQ, AK4499EX, and related “Velvet Sound” lineup have a different design philosophy. AKM chips use a form of noise shaping that reduces in-band distortion at the cost of slightly elevated out-of-band noise — a trade-off optimized for listening quality rather than raw measurement figures.
Sonic character: Warmer, more rounded in the high frequencies. The AK4499EX in particular has an organic, slightly musical quality that many listeners prefer for acoustic and jazz recordings. It does not measure quite as well as the top ESS chips in absolute terms, but the measurements align more closely with how listeners describe their experience.
Implementation sensitivity: Moderate. AKM chips are somewhat more forgiving to implement than ESS designs, though the premium AK4499EX still requires careful circuit design.
Used in: FiiO M11S (ES variant), various Astell&Kern devices, some Topping products, many mid-range DAPs.
Notable context: AKM experienced a major factory fire in 2020 that disrupted the chip supply for nearly two years. This accelerated adoption of ESS designs in the interim. AKM resumed full production by 2022.
Burr-Brown (Texas Instruments)
Burr-Brown DAC chips — the PCM1794, PCM5102, and the TrueBit series — are known for a warm, analog-sounding character. They measure well but not at the extreme levels of ESS Sabre or premium AKM. Burr-Brown chips have been in audiophile use for decades, and many of the best-regarded vintage DACs used them.
Sonic character: Warm, natural, with a slightly soft high-frequency presentation. Most iFi Audio products use Burr-Brown-based conversion, and the “iFi sound” — musical, non-fatiguing, slightly full-bodied — largely comes from this choice.
Implementation sensitivity: Low to moderate. Burr-Brown chips are relatively straightforward to implement and tend to be forgiving of modest power supply quality.
Used in: iFi Gryphon, iFi ZEN DAC V3, iFi Hip-dac 3, many iFi products.
R-2R Ladder DACs
R-2R DACs use a different conversion architecture entirely: a resistor ladder network (alternating R and 2R values) instead of a sigma-delta oversampling design. This was the dominant approach before the sigma-delta revolution of the late 1980s.
Sonic character: R-2R supporters claim a more “natural” sound with better handling of transients and less noise shaping. The character is often described as smoother, more analog-like. Measurements show lower SINAD figures than the best sigma-delta implementations, but the distortion products are lower-order harmonics (even-order, like tubes), which some listeners find more pleasing.
Cost: Implementing a high-quality R-2R DAC is expensive. Unlike chip-based designs, R-2R ladders require precision-matched resistors. This is why R-2R designs typically appear in $1,000+ products (Denafrips Ares II, Holo Audio Spring, Schiit Bifrost 2).
Practical reality: R-2R vs. sigma-delta is primarily a philosophical preference, not an objective performance advantage at equivalent price points. At $300, a well-implemented ESS chip beats an R-2R implementation. At $2,000, a high-quality R-2R can be competitive on sonic grounds even if measurements are lower.
The Critical Truth: Implementation Matters More Than the Chip
This point cannot be overstated: the design of the circuit around the chip determines the performance, not the chip itself.
Evidence: The Topping D90SE (ESS ES9038PRO) measures at ~122 dB SINAD. An unknown budget unit using the same ES9038PRO chip might measure at 95 dB SINAD. Same chip. 27 dB difference. The implementation — power supply filtering, clock quality, output stage design, PCB layout — determines the result.
This means:
- A well-designed device with a “lesser” chip will outperform a poorly designed device with a “flagship” chip
- Chipset stickers are marketing, not performance guarantees
- Measuring the output (using sites like Audio Science Review) is far more informative than the chipset spec sheet
- Brand reputation for engineering quality (Chord, Benchmark, Topping, SMSL, FiiO) matters more than chipset selection
Does Chipset Sound Signature Actually Exist?
The honest answer: yes, but less than the marketing suggests, and far less than implementation differences.
In blind tests, experienced listeners can sometimes distinguish between well-implemented ESS and well-implemented AKM units at equal volume. The ESS tends to be perceived as slightly brighter and more extended; the AKM as slightly warmer and more rounded. But these differences are at or near the threshold of audibility in level-matched comparisons.
What is absolutely not true: that a $300 AKM-based unit will sound “warmer and more musical” than a $300 ESS unit solely because of the chip. The circuit design contributes far more to the sonic character than the chip family.
Practical Buying Advice
Focus on these (in order of importance):
- Overall measured performance (SINAD, THD+N, noise floor)
- Brand engineering reputation
- Output stage quality (output impedance, power delivery)
- Features you actually need (balanced output, Bluetooth, USB)
- Chipset family — only if you have a specific tonal preference and everything else is equal
Ignore:
- “Velvet Sound” / “FPGA-optimized” / “bit-perfect” marketing adjectives
- Claims that one chip “sounds like vinyl” or “sounds more analog”
- DAC chipset as the primary decision criterion
For a deeper look at how DAC quality affects your full setup, see Best DAC Under $500 in 2026 for Audiophiles.
Chipset Reference Table
| Manufacturer | Key Chips | Character | Typical Use |
|---|---|---|---|
| ESS (Sabre) | ES9038PRO, ES9039MPRO, ES9038Q2M | Precise, neutral, extended treble | Budget to flagship |
| AKM (Velvet Sound) | AK4499EX, AK4493SEQ | Warm, musical, natural | Mid-range to flagship |
| Burr-Brown (TI) | PCM1794, TrueBit | Warm, organic, forgiving | iFi products, vintage gear |
| R-2R | (Discrete) | Smooth, analog-like | Premium/boutique ($1,000+) |
| Chord (FPGA) | (Proprietary) | Reference timing accuracy | Chord products exclusively |
FAQ
Q: Should I upgrade my DAC to get a “better” chip? Not on chipset grounds alone. Upgrade your DAC if the measured performance is insufficient for your headphones (i.e., your noise floor is audible, or you hear distortion). If your current DAC measures well, a “better chip” will not produce an audible improvement.
Q: Why do some people strongly prefer R-2R DACs? Partly sound preference (the smoother, lower-order harmonic distortion character), partly psychology (R-2R feels more “authentic” given its historical association with high-end audio), and partly because many high-quality R-2R implementations genuinely do sound excellent — just not objectively better than a well-implemented sigma-delta at the same price.
Q: Does the DAC chip in my DAP matter as much as in a desktop unit? The same principles apply, but in a DAP the implementation challenges are greater (smaller PCB, more interference sources, power supply constraints). This is why flagship DAP manufacturers use multiple chips in balanced mono configurations — it is partly about performance and partly about demonstrating engineering effort at premium price points.
Conclusion
The chipset inside your DAC is one variable among many, and not the most important one. Understanding this reframes how you evaluate audio equipment: instead of looking for the right chip name, look at measured output performance, track record of the manufacturer’s circuit design, and the feature set that matches your use case. The sticker on the front is marketing. The SINAD measurement from an independent lab is data. Use the data.