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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 SU-3 DESKTOP DAC
New Product Announcements

NEW: SMSL SU-3 DESKTOP DAC

The SMSL SU-3 is a compact desktop digital-to-analog converter using an AKM AK4496 DAC and XMOS XU-316 USB interface. It supports PCM playback up to 32-bit/768 kHz and native DSD512 over USB, with ...

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NEW: MOONDROP EVO2 IEM DAC/AMP EAR-HOOKS
New Product Announcements

NEW: MOONDROP EVO2 IEM DAC/AMP EAR-HOOKS

The MOONDROP EVO 2 is a true wireless ear-hook DAC and amplifier designed to bring Bluetooth connectivity to compatible in-ear monitors. Built around MOONDROP's custom TWS-01 Bluetooth master chip ...

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NEW: Moondrop MM3A 66W active desktop speakers
New Product Announcements

NEW: Moondrop MM3A 66W active desktop speakers

The Moondrop MM3A is a compact two-way active speaker system designed for desktop listening, music production, and everyday multimedia use. Each speaker combines a 0.65-inch silk-dome tweeter with ...

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NEW: FIIO FT15 PLANAR MAGNETIC OPEN BACK HEADPHONES
New Product Announcements

NEW: FIIO FT15 PLANAR MAGNETIC OPEN BACK HEADPHONES

The FIIO FT15 is a full-size open-back planar magnetic headphone built around a 101mm driver with an 800nm ultra-thin diaphragm, a full-surface diamond coating, and a patented uniform magnetic fiel...

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NEW: SMSL R100 R2R DESKTOP DAC
New Product Announcements

NEW: SMSL R100 R2R DESKTOP DAC

The SMSL R100 is a desktop R2R DAC centered around two Analog Devices AD1861-J converter chips, combining resistor-ladder digital-to-analog conversion with high-resolution PCM and DSD support, brow...

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NEW: CAYIN HA-1A MK3 CLASS-A TUBE HEAD AMP
New Product Announcements

NEW: CAYIN HA-1A MK3 CLASS-A TUBE HEAD AMP

The Cayin HA-1A MK3 is a compact Class-A tube headphone amplifier and preamplifier built around two JJ 12AU7/ECC82 tubes and two Electro-Harmonix EL84EH/6BQ5 output tubes. Dedicated power and outpu...

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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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