S.M.S.L

SMSL PA400 Gallium Nitride Hi-Fi Power Amplifier

Name: SMSL PA400 Gallium Nitride Hi-Fi Power Amplifier
Brand: S.M.S.L
SKU: 1005010150779972-PA400
Price: 815000.0 KRW
Availability: InStock

₩815,000 KRW

~~₩0 KRW~~ ₩815,000 KRW

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Specification

SMSL PA400 — Gallium Nitride Hi-Fi Power Amplifier

Pure power • King of detail • Infineon GaN output stage & TI PGA2311 precision volume

Infineon GaN Power Transistors ~1 MHz Switching TI PGA2311 Volume IC Balanced XLR / RCA In Bridge-Mono via XLR Aerospace-Grade Aluminum 200 W ×2 @ 8 Ω <0.5 W Standby

Overview

The SMSL PA400 is a next-generation power amplifier that leverages Infineon gallium nitride (GaN) power transistors running at an ultra-high switching frequency of ~1 MHz to deliver extraordinary speed, control, and low distortion across the entire audio band. A TI PGA2311 flagship volume IC provides precise channel tracking and smooth, accurate level control for truly faithful reproduction.

Two Ways to Play

Stereo Power Amp (Balanced/RCA input): Use PA400 with your favorite preamp or DAC/pre for a pure, transparent, high-headroom stereo setup. High input impedance and linear response ensure it amplifies the character of your front end without coloration.
XLR Bridge-Mono: Run two PA400 units—one per channel—in XLR mono mode to dramatically increase power (up to 500 W @ 8 Ω per channel) and soundstage scale, with deeper bass grip, richer midrange body, and airier treble extension.

Engineered for Silence & Strength

Aerospace-grade aluminum unibody: 5-axis CNC with 150-grit bead-blast and anodized finish for excellent rigidity, heat dissipation and durability.
Side grille design: Improves passive cooling and strengthens the chassis against vibration and impact—your foundation for a black, stable background.
Premium parts throughout: Components are sourced from top suppliers to ensure abundant current delivery and ultra-low distortion from the source to the speaker terminals.

System Pairing

Create the “Golden Triangle” SMSL stack: PL200T CD transport → D400 PRO DAC → PA400 power amplifier. From bit-perfect readout to analog finesse to GaN muscle, it’s a complete flagship path from source to speakers.

Technical Specifications

Amplifier Topology	Gallium Nitride (GaN) power stage, ~1 MHz switching
Volume Control	Texas Instruments PGA2311 precision volume IC
Inputs	Balanced XLR, Single-ended RCA, XLR Mono (bridge)
Input Sensitivity / Impedance	RCA: 0.96 Vrms / 22 kΩ • XLR: 2.1 Vrms / 22 kΩ
Output Power (Stereo)	200 W ×2 @ 8 Ω
Output Power (Bridge-Mono)	500 W ×1 @ 8 Ω (per unit)
THD+N	0.003%
SNR	115 dB
Channel Separation	75 dB
Power Consumption	~40 W (normal listening)
Standby Power	<0.5 W
Dimensions (W×H×D)	254 × 47.7 × 242 mm
Weight	2.58 kg (5.69 lb)

What’s in the Box

SMSL PA400 Power Amplifier
AC Power Cord
User Manual & Warranty

Notes: Output power and performance may vary with mains voltage, speaker load and operating mode. Accessories may differ by region.

What's in the Box?

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HiFiCat offers consumers different shipping, depending on the country, a choice of different shipping methods.

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Estimated Delivery Time

1. France, Germany, UK, Italy, Spain, USA.

All taxes and duties are prepaid to the carrier by HiFiCat prior to shipping, so there are no taxes or duties to pay when you receive it. 6-10 days to arrive.

Tracking Example

France: https://t.17track.net/en#nums=YT2132021222003141

Germany: https://t.17track.net/en#nums=YT2133621222016083

United Kingdom: https://www.17track.net/?nums=GV779664269GB

Italy:https://t.17track.net/en#nums=YT2133021222011717

Spain:https://t.17track.net/en#nums=YT2129521222003430

United States:https://t.17track.net/en#nums=SUA211205BIUQ1000007

2.EU Country：Filand, Poland, Estonia, Norway, Switzerland, Greece, Sweden, Israel, Czech Republic, Slovenia, Slovakia, Denmark, Netherlands, Latvia, Croatia, Austria, Hungary, Belgium, Bulgaria, Romania, Ireland, Malta, Iceland, Serbia and so on.

All taxes and duties are prepaid to the carrier by HiFiCat prior to shipping, so there are no taxes or duties to pay when you receive it. 10-15 days to arrive.

Filand: https://www.17track.net/?nums=UG324191515YP

Poland: https://www.17track.net/?nums=UG335827360YP

Estonia: https://www.17track.net/?nums=UG363043181YP

Norway: https://www.17track.net/?nums=VR457380806YP

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Greece: https://www.17track.net/?nums=UG250851788YP

Sweden: https://www.17track.net/?nums=UG353458343YP

Israel: https://www.17track.net/?nums=UG356134837YP

Czech Republic: https://www.17track.net/?nums=UG320437102YP

Slovenia: https://www.17track.net/?nums=UG349882511YP

Slovakia: https://www.17track.net/?nums=UG349946557YP

Denmark: https://www.17track.net/?nums=UG272480001YP