M-AUDIO Super DAC Digital to Analog converter

Super DAC is a USB digital to analog converter with stereo RCA analog outputs and both coaxial and optical digital outputs. With audiophile-grade Wolfson DAC/ADCs, the M-Audio Super DAC performs 24-bit/192kHz high-definition audio conversion over a USB 2.0 connection. This results in the highest possible audio quality, which is critical for users who want to connect their audio equipment to their computer but are not satisfied with the sound quality of the typical computer sound card or the compression limitations of a Bluetooth connection. Six sampling rates between 44.1 and 192kHz are user selectable so you can achieve the exact performance level needed for any given circumstance.

Super DAC has a built-in high quality headphone amplifier with both ¼-inch and 1/8-inch jacks, for connecting any headphones directly without the need for an adapter. It also features analog stereo RCA line outs and coaxial and optical digital output connections, so you can easily connect a wide array of external equipment. Since virtually all high-quality audio equipment has a digital input, Super DACʼs optical  and coaxial digital outputs are perfect for driving that equipment with a pure digital signal—especially valuable since most computers do not have a digital output.

Super DAC is USB-bus-powered or can use an optional AC wall adapter (not included). The M-Audio Super DAC is the answer when you require reference-quality sound from your computer.

• 24-bit/192kHz high-definition audio conversion over a USB 2.0 connection
• High-quality headphone amplifier with 1/4" and 1/8" outputs
• Stereo analog line in
• Stereo analog RCA line outputs
• Coaxial and optical digital outputs
• Wolfson digital conversion
• USB-bus-powered

• Windows XP - Windows 10 Compatible
• OSx 10.7.5 - 10.11 Compatible

The new Fostex HP-A3 is the perfect DAC for Computer Audio. This high quality unit features 32bit D/A Conversion with an integrated headphone amplifier exclusively designed to get the most from and PC audio set-up.

Why settle for 'built-in' D/A conversion when you can drastically improve the quality of your audio with a Fostex HP-A3?

• USB Bus power without using unwanted AC adapter
• Works with up to 24bit/96kHz audio source
• Exclusive PLL power supply is built in to reproduce the stable electrical supply
• High quality analog headphone amp to drive any type of headphones
• Equipped with hgih-grade AKM 32bit(*) DAC AK4390
• Condensers and OP amp designed exclusively for audio products
• USB / Digital (Optical) input selector
• Headphones / RCA (Analog) output selector
• Doubles as D/D converter from USB digital audio to Optical
• An USB/AC adapter from the shelf can be used for use as an Optical / Analog converter

Note: When using the USB input, the sampling frequency is fixed at 96kHz.  Audio file with Fs 32k/44.1k/48kHz will be reproduced by upsampling to 96kHz and the S/PDIF Out is also fixed at 96kHz.

Input
USB port sampling frequency 16bit-24bit/96kHz
Interface: USB full speed
Digital Connector: optical, square
Format: S/PDIF (32kHz - 96kHz)

Output
Phones Connector: Stereo phone
Max Output: 100mW (32-ohm loaded)
THD: less than 0.01% at 1kHz, 32-ohm loaded, 100mW
Frequency response: 20Hz / 20kHz +-0.3dB (32ohm loaded, 100mW)
Analog Connector: RCA Pin
Reference output level -10dBV
THD: less than 0.01% at 1kHz
Frequency response: 20Hz / 20kHz +-0.3dB
Digital Connector: Optical, square
Format S/PDIF (32kHz - 96kHz)

General
Power: DC5V (via USB port)
Power Consumption: 2.5W
Accessories: 1 x USB cable (1.0m), 4 x rubber foot, manual
Dimensions: 108mm(W) x 36mm(H) x 140mm(D)
Weight: approx. 450g

Housed in an elegant compact chassis that occupies just over 1 square foot of desktop or shelf space, the HD-AMP1 digital integrated amplifier features high resolution D/A conversion and compatibility with a wide range of uncompressed high resolution audio formats, including WAV, ALAC, FLAC and AIFF, and is also capable of decoding DSD tracks with compatibility of all 3 DSD sampling frequencies - 2.6/5.2/11.2-MHz (DSD is the audio format of SACD).

The powerful digital amplifier section features cool-running wide bandwidth and wide dynamic range Class D audiophile amplifier technology, delivering 35 watts per channel into 8 ohms and 70 watts per channel into 4 ohms, providing compatibility with the widest range of speaker types and impedances.

Featuring 2 USB ports, 1 on the front and 1 on the back, the HD-AMP1 lets you connect your favorite iDevice or USB drive to the front panel USB port, and your PC or Mac to the rear panel USB-B port to stream your high resolution audio tracks, and it features advanced noise isolation to guard against digital noise from degrading the high resolution sound.

Equipped with Marantz Musical Digital Filtering, our proprietary DSP filter technology, the HD-AMP1 lets you choose from 2 digital filter algorithms so you can precisely tailor the sound to your liking. The reference-class ESS SABRE DAC features 32-bit/384-kHz decoding for the highest resolution and widest dynamic range with today's advanced audiophile hi-res tracks.

The analog sections feature our exclusive HDAM-SA2 modules, including the analog front end block, the D/A converter block and in the dedicated headphone amplifier block.

There are 2 optical and 1 coaxial digital inputs, along with 2 analog inputs, so you can connect the widest range of source components.

The elegant chassis features a solid brushed aluminum front panel along with luxurious woodtone side panels.