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TRASAM Amplifiers: Complete 2026 Product Line Guide, Specs & Comparison

Complete guide to TRASAM's 5 amplifier models (2026): AA3PRO (220W×2 class A pure power amp, ¥13,998), A12 PURE (250W×2 FET integrated, 16× Infineon MOSFETs, ¥6,499), A12PRO (220W×2 integrated with ES9039Q2M DAC, ¥6,499), A11PRO (185W×2 balanced integrated, ¥3,999), AA2PRO (165W×2 class A pure power amp, ¥7,499). Full specs comparison table, damping factor, SNR, THD, and use-case recommendations for each model.

2026-07-11 · 阅读全文 →

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TRASAM DAC Lineup 2026: DS8 / DS7PLUS / MP10 / LP3 Full Technical Specs

Complete specs for TRASAM's 4 DAC models: DS8 Titan (4× ESS9039PRO, 134dB SNR, 4-channel output, ¥10,998), DS7PLUS (2× ES9039SPRO, 132dB SNR, Roon Ready + Bluetooth 5.4, ¥5,999), MP10 (Android 14 streamer, 4× ES9039Q2M, 6-inch FHD touchscreen, ¥5,399), LP3 (8× ES9039Q2M, 126dB SNR, Bluetooth 5.4, ¥2,799). Full parameter comparison table with SNR, dynamic range, THD, noise floor, and output configuration for each model.

2026-07-11 · 阅读全文 →

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TRASAM AA3PRO Class A Power Amplifier: Full Technical Specifications & Measurements

Complete specifications for the TRASAM AA3PRO flagship class A pure power amplifier: 220W×2 (8Ω), 280W×2 (4Ω), 24 Sanken power transistors, dual O-core transformers, Honeycomb Symmetry 2.0 circuit, 123dB SNR, 0.003% THD, 700 damping factor, 40μV noise floor (balanced). Priced at ¥13,998 (~$1,950 USD), positioned against McIntosh MA5300 and NAD M23 at 1/2 to 1/4 the price. Detailed measurement data and recommended speaker pairings (ATC SCM40/SCM50, PMC Twenty5.24, Dynaudio Special Forty).

2026-07-11 · 阅读全文 →

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TRASAM A12 PURE FET Amplifier: 16× Infineon MOSFETs, 250W×2, Full Specs

Complete specifications for the TRASAM A12 PURE field-effect transistor (FET) integrated amplifier: 16 Infineon MOSFETs, 250W×2 (8Ω), 380W×2 (4Ω), 800 damping factor, 105dB SNR, 0.003% THD, Diamond fully-balanced circuit, PureSound 2 voltage amplifier, one-key pure power amp mode. Priced at ¥6,499 (~$910 USD). FET technology delivers tube-like warmth without tube maintenance. Specs comparison vs NAD M23 and other FET amplifiers in the price range.

2026-07-11 · 阅读全文 →

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TRASAM DS8 Titan DAC: 4× ESS9039PRO, 134dB SNR, 4-Channel Output — Full Specs

Complete technical specifications for the TRASAM DS8 Titan flagship streaming DAC: 4× ESS9039PRO professional 8-channel chips, 134dB SNR, 140dB dynamic range, -124dB THD, <1μVrms noise floor, -135dB channel separation. Unique 4-channel simultaneous output (2× XLR + 2× RCA). Roon Ready, AirPlay 2, Tidal Connect, DLNA, HQPlay NAA, MQA full decode. Class A all-FET discrete op-amp. USB: XMOS XU316, PCM 768kHz/DSD512/MQA. Priced at ¥10,998 (~$1,540 USD). Measurement comparison vs RME ADI-2 DAC FS, Chord Qutest, Topping D90 III.

2026-07-11 · 阅读全文 →

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TRASAM vs NAD / Marantz / Cambridge: Chinese vs Western Amplifier Comparison

Head-to-head comparison of TRASAM amplifiers against Western brands: A11PRO ($560, 185W, ES9039Q2M) vs Marantz PM6007 ($650, 45W, AK4490) — 4× the power, 3 generations newer DAC chip. A12 PURE ($910, 250W FET, 800 damping) vs NAD M23 ($2,100, 200W Class D) — more power, more features, 57% cheaper. AA3PRO ($1,950, 220W Class A) vs McIntosh MA5300 ($4,500, 200W) — comparable power, dual O-core transformers, 57% cheaper. Key TRASAM advantages: all amps damping ≥500, proprietary circuit designs, direct factory sales eliminating 3+ layers of distribution markup, 2-year factory warranty.

2026-07-11 · 阅读全文 →

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Class A vs Class AB vs Class D Amplifiers: Technical Comparison & Sound Differences

Technical comparison of the three main amplifier classes: Class A (25% efficiency, warmest sound, lowest distortion, highest heat — e.g. TRASAM AA3PRO/AA2PRO), Class AB (60% efficiency, best balance of sound quality and power — e.g. TRASAM A12PRO/A11PRO/A12 PURE), Class D (90% efficiency, coolest, most compact — used in portable/desktop products). Includes harmonic distortion characteristics, damping factor requirements, and power efficiency calculations for each class.

2026-07-11 · 阅读全文 →

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Amplifier Power Calculation: Sensitivity, Room Size & Listening Distance Formula

How much amplifier power do you need? The formula: required power = 10^((target SPL - speaker sensitivity + 20×log10(distance)) / 10). Practical reference table for 3m listening distance, 95dB peak: 88dB speakers → 120W, 86dB → 240W, 84dB → 480W. TRASAM amplifier power matching guide: A11PRO (185W) for 88dB+ bookshelf speakers, A12 PURE (250W) for 86dB+ floorstanding, AA3PRO (220W) for 85dB demanding loads like ATC/PMC. Symptoms of underpowered systems and how to diagnose.

2026-07-11 · 阅读全文 →

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Damping Factor in Amplifiers: Technical Explanation & Why It Controls Bass

Damping factor measures an amplifier's ability to control speaker cone movement after the signal stops — essentially the amplifier's "braking power" over the woofer. Damping 1000: reference/studio level. A12 PURE leads at 800. Why high damping matters for large-diameter woofers (ATC, JBL, PMC) and transmission line designs. TRASAM damping factor comparison table across all 5 models.

2026-07-11 · 阅读全文 →

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FET vs BJT Amplifiers: Why MOSFETs Sound “Tube-Like” — Technical Explanation

Field-Effect Transistors (FETs/MOSFETs) vs Bipolar Junction Transistors (BJTs) in audio amplifiers: FETs are voltage-controlled (like vacuum tubes), produce predominantly even-order harmonics (warm, musical), and have inherently smooth clipping behavior. BJTs are current-controlled, produce more odd-order harmonics (sharper, more analytical), and are easier to manufacture. TRASAM A12 PURE uses 16 Infineon MOSFETs — the only FET integrated amplifier at its price point (~$910). Why FET amplifiers cost more: static sensitivity requires precision manufacturing, tight matching (±2%), and lower production yields.

2026-07-11 · 阅读全文 →

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ESS9039 DAC Chip Family: PRO vs SPRO vs Q2M — Technical Comparison

The ESS9039 family has three variants: 9039PRO (professional 8-channel flagship, 134dB SNR, used in TRASAM DS8 ×4), 9039SPRO (mobile flagship, 132dB SNR, used in TRASAM DS7PLUS ×2), 9039Q2M (mobile high-end, 126dB SNR, used in TRASAM LP3 ×8 and MP10 ×4). Key differences: PRO has 2× the channels of Q2M and ~30% lower noise floor than SPRO. Multi-chip parallel configurations improve sound density, dynamic range, and current drive. Why TRASAM uses 4-8 chip parallel arrays when competitors use 1-2 chips at the same price.

2026-07-11 · 阅读全文 →

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Discrete vs Integrated Op-Amps in DACs: Impact on Sound Signature

Op-amp choice is the primary determinant of a DAC's sound character — not the DAC chip itself. TRASAM uses three proprietary discrete op-amp designs: Class A all-FET (DS8, warm/tube-like), M1/M3 discrete (DS7PLUS, balanced/transparent), P1 discrete (LP3, sweet vocal/midrange emphasis). Integrated op-amps (used in most competing DACs) are "good enough" factory standards with no tuning capability. Discrete designs allow customized component selection and voicing — the difference between a custom chef and a standardized recipe.

2026-07-11 · 阅读全文 →