EAC's new UD-501 is the star of the 501 series. The UD-501 supports Direct Stream Digital (DSD) playback at either 2.8 MHz or 5.6MHz (DXD) rates. PCM audio is supported up to 384kHz/32-bit resolution. It connects to your computer over USB using ASIO 2.1 or DoP. The output section of the UD-501 features two BurrBrown 32-bit DACs per channel and JRC MUSES op amps, also with a dual monaural design. Both balanced XLR and unbalanced RCA outputs are available to connect to your power amplifier. A toroidal-core power supply ensures top performance and clean transient playback, for quality that outperforms components five times its price.

The TEAC PD-501HR is a high-quality disc player with 5.6MHz DSD file native playback and up to 24bit/192kHz PCM on recordable DVD discs. Featuring unique VACS (Vibration Acoustic Control Structure) to control vibrations, separate power supplies for analog and digital sections, the PD-501HR really is an uncontested disc player......... The PD-501HR plays back DSD files recorded to DVD discs, eliminating the need for any PC. Conventional DVD writing software is capable of burning DSD discs, by writing dsf files to recordable DVD discs (DVD-R/-RW/+R/+RW). (SACD disc is not supported on the PD-501HR.)........ Conventional DSD processors convert PCM files prior to converting to an analog signal. The PD-501HR employs a "Pure Mode", processing DSD into an analog signal directly. This lets you enjoy pure DSD sound that normal PCM-conversion can't........ Unique Vibration Control Mechanism "VACS" Vibration Acoustic Control Structure While reading signals from a rating disc, vibrations may cause a read error and negatively affect the sound quality by missing some of the original data on the disc. To eliminate vibrations and reach perfect data reading, the PD-501HR employs a unique vibration control mechanism, VACS, for a smooth rotation. After dozens of evalution tests the VACS instrument was chosen and fixed to the drive of the unit in order to achieve the best possible performance......... Cirrus Logic's Flagship DSD-Supported DAC A celebrated CS4398 by Cirrus Logic is utilized to achieve 120dB of dynamic range. The CS4398 also employs un-damped volume control and a Mismatch Shaping Technology to eliminate distortion caused by capacitor mismatching....... "Green Technology" In keeping with the rest of the Reference 501 series, the PD-501HR also maintains low power consumption without sacrificing sound quality. With a maximum 11W of power consumption, a selectable power saving mode and 0.1W of power consumption during standby, the PD-501HR can truly be called "green technology"

The AK4490EQ is a new generation 32-bit stereo Premium DAC. It is a flagship product of AKM’s VERITA series in the Audio 4 Pro family. The AK4490EQ adopts a newly developed VELVET SOUND technology achieving high-resolution sound playback that realizes a rich sound field and bass representation with less distortion. Digital input supports PCM input up to 768kHz and DSD input of 2.8MHz/5.6MHz / maximum 11.2MHz, the industry's highest level. Internal circuit employs a newly developed 32-bit digital filter focusing on sound quality during development. This device is ideal for systems such as Network Audio Players focusing sound quality, SACD players and high-end audio systems supporting high resolution sound source.

The HA-P50 Portable Headphone Amplifier and USB DAC from Teac provides improved digital to analog audio conversion for your iOS and Android devices, as well as your Mac or PC Computer. Its headphone amplifier can power high-impedance headphones up to 600 ohms, allowing you to connect them to your portable device which may otherwise not be powerful enough for them. The HA-P50 features a BurrBrown PCM5102 DAC chip for performing its digital to analog conversion. Its built-in rechargeable battery provides up to 8 hours of operation time and can be charged with the included USB recharging cable. 2 rubber fixing straps and a USB computer connection cable are also included.

The main unit employs a USB Audio Input that allows users to connect to a computer and process high-resolution audio of up to 192kHz/24-bit by on-board D/A converter PCM1796 by BurrBrown. The asynchronous connection minimizes jitter noise generated by the computer, while the up-conversion function refines incoming digital audio to make it as smooth as possible, even from CD-based audio tracks.

The UDH01S USB Audio D/A Converter (Silver) from Teac is a dual digital/analog converter containing two BurrBrown DAC chipsets (Type 1795) and a Tenor USB audio interface. It allows you to connect it to almost every source imaginable including your computer to stream audio via a USB cable from your computer through your stereo system. The UDH01S is supplied with both balanced and unbalanced audio output connectors and a headphone connector complete with separate volume control. It has coaxial and optical inputs and both XLR and RCA outputs.

TEAC's A-H01 combines a high-quality D/A converter with a stereo amplifier to create a compact audio system for your home or office. Five stereo inputs are available – 2 analog and 3 digital format. The Burr Brown digital-to-analog converter supports high-resolution sample rates up to 192kHz/32-bit. The USB 2.0 input can be used with your Mac or Windows computer for audiophile-grade music playback of your music library. It's ideal for playback of FLAC, WAV, Apple Lossless and other high-res file formats. The A-H01's connects to speakers through a B&O ICE power stereo amplifier providing 50W per channel. Heavy-duty, gold plated binding post terminals connect to speaker cable of any thickness. A subwoofer pre-out is provided for extra punch, and a great-sounding headphone amp for private listening.

AI-301DA-S Pre-Main Amplifier with Bluetooth, USB, and Digital-to-Analog Converter from Teac is capable of DSD native playback by converting 5.6 MHz DSD files received via its USB input directly into analog signals, without the need for converting them to PCM first. It supports both the ASIO2.1 and DoP (DSD over PCM) conversion methods. When receiving digital audio signals from a computer via USB cable, the unit can operate in asynchronous mode, controlling the timing of the input signal using an internal clock. With asynchronous transmission over USB, signal compromising jitter is effectively eliminated. Besides its USB audio input, the amplifier also comes with S/PDIF inputs for versatile compatibility. The amplifier features the aptX codec, which offers wireless playback capability via Bluetooth hardware. This codec offers low latency and error recovery. The AI-301DA can remember up to eight Bluetooth device pairings. The device also features one coaxial and two RCA stereo line inputs along with a headphone jack (standard stereo) and a subwoofer output (RCA). The system features an 8.5" wide casework, which allows greater freedom in positioning the amplifier. The solid metal chassis minimizes the effects vibration has on sound quality. Capable of 5.6 MHz DSD Native Playback