Sabaj A10D
The Sabaj A10D (2022) pairs dual ES9038Q2M DACs, balanced XLR/4.4 mm outputs, and LDAC-capable Bluetooth in a compact DAC/amp that achieves transparent measured performance for 299 USD.
Overview
The Sabaj A10D 2022 is a desktop DAC and headphone amplifier built around dual ESS ES9038Q2M chips in a balanced configuration. It provides USB-C, optical, and coaxial digital inputs plus Bluetooth 5.0 (LDAC/aptX HD/AAC), balanced XLR and unbalanced RCA line outputs, and both 6.35 mm (SE) and 4.4 mm (balanced) headphone jacks [2]. The goal is high measured fidelity and practical connectivity at 299 USD.
Scientific Validity
\[\Large \text{0.8}\]Independent testing at Audio Science Review confirms that the A10D’s performance reaches audibly transparent levels for both DAC and headphone outputs [1]. Manufacturer-published key figures are: DAC THD+N 0.00008% (-121 dB), headphone out THD+N 0.00012% (-118 dB), dynamic range/SNR up to 126 dB, RCA 2 Vrms and XLR 4 Vrms line levels, and headphone power around 1 W into 32 Ω [2]. Architecture details include XMOS XU208 USB and multiple OPA1612 op-amps in the analog stage [2][3]. These numbers exceed common transparency thresholds; note that LDAC/aptX HD are high-bitrate but still lossy BT codecs [2].
Technology Level
\[\Large \text{0.7}\]Dual ES9038Q2M in differential mode, XMOS XU208 for up to 32-bit/768 kHz PCM and DSD512, and a fully featured I/O set reflect competent, current-generation design rather than novel research. The analog stage uses OPA1612 op-amps, with balanced line and headphone paths implemented cleanly [2][3].
Cost-Performance
\[\Large \text{0.7}\]Current price of review target: 299 USD.
Cheapest equivalent-or-better comparator: SMSL C200 (DAC/amp with balanced line out, 4.4 mm/6.35 mm headphone outs, Bluetooth with LDAC; line THD+N -120 dB, DR 126 dB on TRS; manufacturer) at 219 USD [5][6][7].
Equivalence note (user perspective): C200 offers the same key functions (USB/optical/coax/BT, balanced line out, integrated headphone amp) and comparable measured performance (line THD+N and dynamic range within spec of the A10D) [5][6][7]. Connector style (XLR vs TRS) is not user-visible performance.
Calculation (USD basis for consistency):
219 USD ÷ 299 USD = 0.732 → rounded to 0.7.
Reliability & Support
\[\Large \text{0.7}\]Warranty for new Sabaj products is one year (two years in Europe) and service is typically dealer-mediated [9][10]. Firmware/driver support exists for the XMOS USB interface where applicable. Overall hardware design uses proven components; direct global service infrastructure is limited outside Asia.
Rationality of Design Philosophy
\[\Large \text{0.8}\]The A10D prioritizes measurable fidelity and practical I/O over cosmetic excess. Balanced signal paths, sensible op-amp selection, and modern digital interfaces are used to achieve transparent performance at modest cost, aligning engineering effort with audible outcomes.
Advice
If you need a single-box DAC/amp with balanced line out, competent headphone power, and Bluetooth (LDAC), the A10D is a strong choice at 299 USD. If maximizing price-to-performance is paramount and XLR connectors specifically are not required, the SMSL C200 delivers equivalent functionality and specs for less. If you want advanced DSP/EQ and a higher-end UI, consider stepping up to devices like JDS Element IV at a higher price point.
References
[1] Audio Science Review, “Sabaj A10d 2022 Version Review (DAC & Amp)”, https://www.audiosciencereview.com/forum/index.php?threads/sabaj-a10d-2022-version-review-dac-amp.34918/, accessed 2025-08-28.
[2] Audiophonics, “SABAJ A10D 2022 DAC 2x ES9038Q2M” (specs incl. LDAC/aptX HD, XU208, power, DR/SNR), https://www.audiophonics.fr/en/dac-with-volume/sabaj-a10d-2022-dac-2x-es9038q2m-headphone-amplifier-xmos-xu208-bluetooth-50-32bit-768khz-dsd512-p-16494.html, accessed 2025-08-28.
[3] Headfonia, “Sabaj A10d Review” (OPA1612 stage noted), https://www.headfonia.com/sabaj-a10d-review/, accessed 2025-08-28.
[4] HiFi-Express, “Sabaj A10d 2022” Audio Desktop DAC ES9038Q2M*2 (price/specs), https://hifi-express.com/products/sabaj-a10d-2022-v, accessed 2025-08-28.
[5] SMSL (official), “C200” product page (functions/BT codec support), https://www.smsl-audio.com/portal/product/detail/id/799.html, accessed 2025-08-28.
[6] Aoshida Audio, “SMSL C200” (current price 219 USD), https://aoshida-audio.com/products/smsl-c200, accessed 2025-08-28.
[7] Audiophonics, “SMSL C200” (specs incl. THD+N/DR, LDAC), https://www.audiophonics.fr/en/dac-with-volume/smsl-c200-dac-es9038q2m-bluetooth-50-aptx-hd-ldac-32bit-768khz-dsd512-p-16812.html, accessed 2025-08-28.
[8] Audio Science Review forum, “Aoshida SMSL C200 Review (DAC & Amp)” (context), https://www.audiosciencereview.com/forum/index.php?threads/aoshida-smsl-c200-review-dac-amp.36850/, accessed 2025-08-28.
[9] HiFi-Express, Product FAQ (warranty term), https://hifi-express.com/products/sabaj-a10d-2022-v, accessed 2025-08-28.
[10] Sabaj official, “Warranty”, https://www.sabaj.com.cn/en/warranty.asp, accessed 2025-08-28.
(2025.8.29)