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Learn about everything audiophile — from setups to components

Audiophile Learning Hub

Balanced vs Single-Ended: Does it Matter?

Balanced vs Single-Ended: Does it Matter?

How to Match a DAC and Amplifier

How to Match a DAC and Amplifier

What are NOS Tubes?

What are NOS Tubes?

Apos Blog

NEW: SMSL D400 MK2 Desktop DAC
New Product Announcements

NEW: SMSL D400 MK2 Desktop DAC

The SMSL D400 MK2 is a high-performance desktop DAC built around AKM’s flagship AK4191 digital processing stage and AK4499EX conversion architecture, with third-generation XMOS XU-316 USB processin...

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NEW: SMSL RAW-MHA1 POWER AMP
New Product Announcements

NEW: SMSL RAW-MHA1 POWER AMP

The SMSL RAW-MHA1 is a compact digital power amplifier built around a high-power Infineon amplifier chip, with selectable stereo and BTL bridged mono operation. It delivers up to 160W per channel i...

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NEW: NOBLE AUDIO FOKUS ARTEMIS ANC HEADPHONES
New Product Announcements

NEW: NOBLE AUDIO FOKUS ARTEMIS ANC HEADPHONES

The Noble Audio FoKus Artemis is a flagship wireless over-ear headphone built around a three-driver hybrid system combining one dynamic driver, one planar driver, and one balanced armature driver i...

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NEW: FIIO QX11 GAMING DAC/AMP
New Product Announcements

NEW: FIIO QX11 GAMING DAC/AMP

The FIIO QX11 is a compact USB DAC, headphone amplifier, and gaming sound card built around two ESS ES9069Q DACs and an all-TI analog stage. Dedicated HiFi and Game modes give it separate operating...

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NEW: ES LAB EHT-LPS Linear Power Supply
New Product Announcements

NEW: ES LAB EHT-LPS Linear Power Supply

The ES Lab EHT-LPS is a dedicated linear power supply for the EHT-7 electrostatic headphone energizer. It combines an R-core power transformer with dual LT3045 voltage regulators, Nichicon Fine Gol...

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NEW: CAYIN CP6 DUAL TUBE PORTABLE CD PLAYER
New Product Announcements

NEW: CAYIN CP6 DUAL TUBE PORTABLE CD PLAYER

The Cayin CP6 is a portable CD player, USB DAC, digital transport, Bluetooth transceiver, and fully-balanced headphone amplifier built around three selectable analog timbre modes. Its signal path c...

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NEW: FIIO EA13 VACUUM TUBE POWER AMP

NEW: FIIO EA13 VACUUM TUBE POWER AMP

The FIIO EA13 is a pure Class-A push-pull vacuum tube power amplifier built around two SYLVANIA NOS PCF80 voltage-amplification tubes and four JJ ELECTRONIC EL34 power tubes. It delivers up to 28W ...

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NEW: FiiO IMP XLR-4 Headphone Impedance Adapter
New Product Announcements

NEW: FiiO IMP XLR-4 Headphone Impedance Adapter

The FiiO IMP XLR-4 is a headphone impedance adapter designed to connect compatible headphones directly to the speaker outputs of a home HiFi power amplifier. Its internal voltage divider circuit at...

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New: Matrix Audio SI-1 network isolator
New Product Announcements

New: Matrix Audio SI-1 network isolator

The Matrix Audio SI-1 is an active network isolator designed to electrically separate network infrastructure from high-resolution audio components. It combines dual-channel optical-electrical isola...

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NEW: AURIBUS ACOUSTICS LAGUNA PRECISION CLOSED-BACK HEADPHONES
New Product Announcements

NEW: AURIBUS ACOUSTICS LAGUNA PRECISION CLOSED-BACK HEADPHONES

The Auribus Acoustics Laguna Precision is a lightweight closed-back dynamic headphone developed for home listening, travel, studio work, gaming, and content creation. It uses a newly developed 35 m...

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NEW: FIIO DM15 PORTABLE CD PLAYER
New Product Announcements

NEW: FIIO DM15 PORTABLE CD PLAYER

The FIIO DM15 is a portable stereo CD player built around two AKM AK4493S DACs, with 3.5mm single-ended and 4.4mm balanced headphone outputs, USB DAC operation, aptX Lossless Bluetooth transmission...

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NEW: SMSL H400 MK2 Headphone Amplifier
New Product Announcements

NEW: SMSL H400 MK2 Headphone Amplifier

The SMSL H400 MK2 is a compact desktop headphone amplifier and preamp built around a fully balanced discrete amplification architecture, 14 OPA1612A operational amplifiers, three selectable gain le...

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