The Douk Audio H7PRO is a TPA3255-based balanced power amplifier for passive speakers, built to take balanced connections from a preamp or DAC. It suits listeners who already run balanced cables, or plan to, and owners stepping up within the TPA3255 amp category to a more fully featured unit.
Who the Douk Audio H7PRO is for
Passive speaker systems: As a power amplifier, it drives passive speakers fed from your preamp or DAC.
Balanced preamps and DACs: Sources with balanced outputs can connect the way they were designed to, thanks to its balanced design.
TPA3255 upgraders: Already using a TPA3255 amp? The H7PRO is a step up to a more fully featured unit on the same chip.
Skip it if: none of your sources has balanced outputs and none is planned; balanced connectivity is the main reason to choose the H7PRO.
Douk Audio H7PRO key specs
Amplifier chip: TPA3255
Type: Power amplifier, balanced design
Connects to: Preamps and DACs with balanced outputs
Drives: Passive speakers
Color: Gray
Genuine, brand-new stock. Free US shipping and 45-day returns from TonePier.
Douk Audio H7PRO vs similar options
vs SMSL AO200 MKII: Another amp with balanced inputs, built on the MA5332MS chip and including Bluetooth 5.0; choose the H7PRO if you specifically want a TPA3255 design.
vs Douk Audio ST-01PLUS: Douk's compact TPA3255 desktop amp with Bluetooth input; the H7PRO is the step-up option on the same chip, built around a balanced design for preamps and DACs.
vs FiiO Level 1: A desktop stereo amp for passive speakers with Bluetooth LDAC and Hi-Res support, bundled with its 48V 5A power supply; the H7PRO's draw is TPA3255 amplification with balanced connectivity.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging with a valid serial number, and backed by our 1-year warranty and 45-day returns.
How long does shipping take?
Orders ship within 3 business days, with full tracking. Shipping to the US is free on every order, and most US orders arrive within 7–15 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.
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