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Douk Audio

Douk Audio Ampapa H1 Tube Headphone Amp — Class A, 4W Balanced, Preamp

Douk Audio Ampapa H1 Tube Headphone Amp — Class A, 4W Balanced, Preamp
  • Genuine & Brand-New
  • Free Shipping · Ships from China
  • 1-Year Warranty
  • 45-Day Returns
Regular price $195.99 USD
Regular price Sale price $195.99 USD
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The Douk Audio Ampapa H1 is a tube headphone amplifier and preamp that pairs two ECC83 tubes with a discrete Class A output stage, rated at up to 4W from its 4.4mm and 4-pin XLR balanced outputs. It suits desktop listeners with demanding full-size headphones who also want one box to switch RCA and TRS sources and feed powered speakers.

Who the Douk Audio Ampapa H1 is for

  • Hard-to-drive headphones: High gain is rated at 4W balanced and 1000mW single-ended, and Douk Audio matches the H1 to headphones from 16Ω to 600Ω.
  • Balanced headphone owners: 4.4mm and 4-pin XLR balanced jacks sit beside a 6.35mm output, and low, mid and high gain settings cover sensitive, everyday and harder-to-drive headphones.
  • Desktop speaker systems: Two RCA inputs and a balanced TRS input feed RCA and TRS preamp outputs, with HP, Line or HP+Line modes and a 12V trigger so linked gear can power on and off together.
  • Tube and op-amp rolling: It ships with two PSVANE × Douk Audio ECC83 tubes, which Douk Audio says add a warmer, richer tube character, and the maker lists 12AX7, 6N4 and 5751 tubes and DIP-8 dual op-amps such as the OPA2134 as compatible swaps.
  • Skip it if: you need a DAC: the H1 has analog RCA and TRS inputs only, so it needs a separate DAC or another source with line-level outputs.

Douk Audio Ampapa H1 key specs

  • Design: Tube headphone amp and preamp: 2 × ECC83 tubes with a discrete Class A output stage
  • Headphone outputs: 4-pin XLR and 4.4mm balanced, 6.35mm single-ended (6.35mm takes priority and mutes the balanced jacks)
  • Headphone power: Balanced 4W / 2W / 1W, single-ended 1000mW / 500mW / 250mW (high / mid / low gain)
  • Headphone impedance: 16–600Ω
  • Line inputs: 2 × RCA (1V sensitivity), 1 × balanced TRS (2V)
  • Line outputs: 2 × RCA (up to 3.0V), 1 × balanced TRS (up to 6.0V); HP, Line or HP+Line modes
  • Performance: THD+N 0.04%, SNR ≥113dB, 20Hz–20kHz (±0.7dB)
  • Controls and parts: NJW1195 volume IC, 2 × pluggable LME49720 op-amps, 1.5-inch OLED display, 12V trigger in/out
  • Power, size and weight: DC 12V ≥2A (5.5 × 2.1mm), adapter included; 155 × 124 × 42mm, 750g; black
  • In the box: H1, 2 × ECC83 tubes, DC 12V power adapter, 6.35mm-to-3.5mm adapter, 3.5mm trigger cable, cleaning cloth, user manual

Genuine Douk Audio stock. Free shipping on every order, 45-day returns.

Douk Audio Ampapa H1 vs similar options

  • vs Fosi Audio GR70: Adds bass and treble controls and a 3.5mm headphone jack on a four-tube OTL design; pick the Douk Audio Ampapa H1 for 4.4mm and 4-pin XLR balanced outputs rated up to 4W and balanced TRS line I/O.
  • vs Douk Audio E2: Douk Audio's higher-priced tube headphone amp and preamp, also able to feed powered speakers or a power amp; pick the Douk Audio Ampapa H1 to spend less and get balanced TRS line I/O plus up to 4W balanced output.
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Good to know

Buying from TonePier

Is this unit genuine?

Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.

Where does my order ship from, and how long does it take?

Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.

What if it isn't for me?

You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.