Oppo HA-1 Headphone Amplifier

Oppo HA-1 Headphone Amplifier US$ 1,199.00

Discrete Class A Balanced Headphone Amplifier
Asynchronous USB DAC Up to 384 kHz and DSD256
Stereo Pre-Amplifier with Home Theater Bypass
Compatible with iPod/iPhone/iPad and Bluetooth
Bluetooth also supports the APTX codec.
A remote control app is available for both Apple's iPhone and Android-based smartphones.

Inputs
Analog inputs: RCA/XLR

Digital inputs:
Coaxial, Optical, AES/EBU 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz with 16/24 bit word length
USB:
Stereo PCM:
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz, 352.8 kHz, 384 kHz
16-bit, 24-bit, 32-bit word length
Stereo DSD (DoP v1.1 or native)
2.8224 MHz (DSD64), 5.6448 MHz (DSD128), 11.2896 MHz (DSD256, native mode only)

Mobile USB Audio Input (USB A Type)
Stereo PCM 44.1 kHz, 48 kHz

Profile USB 2.0, USB Audio 2.0 (driver for Windows available)

Bluetooth 2.1+EDR
Profile: iAP, SPP, AVRCP, A2DP
Audio: SBC, aptX


Outputs
Analog output: XLR/RCA

Headphone output: Jack (0.7 Ohm), 4 pin XLR (symmetrical, 0.5 Ohm)

Bryston BUC-1 USB Converter

Bryston BUC-1 USB Converter $750

• Native 24 bit resolution at sampling rates of up to 192 kHz
• Asynchronous USB receiver
• Controls master timing of the audio system
• Outputs transformer coupled
• Input sample rate indicators
• Ultra low noise linear power regulation

Dimensions

• 2.25” H x 5.63” W x 8” D
• 57.15mm H x 142.88mm W x 203.2mm D

Audiobyte Hydra X+ USB to SPDIF converter

Audiobyte Hydra X+ €699.00

- asynchronous operation
- DSD compatible
- Lithium Polymer nano , low noise battery technology
- 384k/24 bit on all outputs (optical could be limited to 96k)
- bitperfect operation
- Native on Linux, Mac
- Windows drivers available
- I2S/DSD output , LVDS compatible
- S/PDIF, AES/EBU, BNC

Gato Audio DIA-250 Integrated Amplifier $4,500

• 2x 250W@8ohm / 2x 500W@4ohm
• Class D output stage
• Built in 24bit/192kHz D/A converter with upsampling
• Coax, optical and asynchronous USB digital input up to 24bit/192kHz
• Accepts digital streaming directly from Apple iPad
• Two unbalanced and one balanced inputs
• Nonmagnetic enclosure
• Direct function; enables use in home theater sytems

Clones Audio Sheva DAC

Clones Audio Sheva DAC €1799

 Digital Inputs: AES/EBU, S/PDIF, BNC,Toslink, I2S and USB
• 2 stereo analog outputs, one on XLR one on RCA
• 100steps fine setting via rotary encoder (digital domain) control main output

Frontpanel controls:
• Dot Matrix display for display of sampling rate, input source, audio level, filter type
• Rotary encoder with push switch

Special features:
• DSD 64/128 and DXD (384KHz 24bit PCM) compatible
• Ultra-Low Phase Noise Femto Master Clock
• Power supply has separate torroidal transformers for Analog and Digital section.

Sampling rates:
• AES/EBU, COAX, OPT up to 192kHz
• USB/I2S: PCM 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384kHz; DSD64, DSD128

Eclipse TD-M1 $1.300

Eclipse TD-M1 $1.300

Full range driver with NOS DAC and Class D amp.
Inputs:
Airplay (16 bits / 48 kHz)
Async USB (24 bits / 192 kHz)
USB-A
3.5mm analog Aux

Audioengine D3

24 bit / 96 kHz DAC with asynchronous USB input and headphone out.

• Full-scale output 2.0V RMS
• Frequency response 10Hz - 25kHz (+/- 0.5dB)
• SNR (DC to 20kHz) 110dB
• THD+N (1kHz FS 96 kS/s) <0 .002="" li="">
• Crosstalk -110dB
• USB transfer mode Asynchronous (dual clock)
• USB device class Type 1.1 or above
• Input USB Audio Input bit depth up to 24 bits (upsampled)
• Input data rate up to 192KS/s (96K native)
• Output Analog audio mini jack
• Output impedance 10 ohms
• Suggested headphone impedance 12 ohms to 10Kohms
• Headphone amplifier LME49726
• D/A converter AKM4396
• USB controller TI1020B
• Power requirement USB 5V DC, 200mA
• USB power filtering 2-stage redundant regulation
• Product dimensions 19x12x6mm (including USB connector)

Website Audioengine
Price: $189.00

AMI MUSIK DDH-1

Pre-amp with analog, USB, Toslink and SPDIF input.
Analog line- and headphone out
Digital out (Toslink)

32-bit Texas Instruments PCM1795 DAC
XMOS-based asynchronous USB input 24-bit/192kHz
1/8" analog input couple to a AKM AK5386 AD converter (24-bit/96kHz) coupled with the amp and the Toslink output allowing for digitizing analog input.
USB input coupled with Toslink output ( USB to SPDIF conversion)



Website: AMI MUSIK DDH-1
Price: US$549

LH Labs Geek

Small portable USB DAC/headphone amp

• Two outputs on all types (2 x 3.5 mm jack): line and headphones, both are variable in digital domain (64bit precision)
• Volume control: two buttons and software (Operation System main volume slider sends volume data to Geek which implements the volume change in its internal volume control)
• Line-out output impedance: 47 Ohm (on all types)
• Headphone output impedance: 0.47 Ohm (on all types)
• Max output voltage (line-out and headphone): 2.65 Vrms (Geek), 3,4 Vrms (Super Geek), 4 Vrms (Super-Duper Geek)
• Max output power (headphone, 16 Ohm): 450 mW (Geek), 720 mW (Super Geek), 1000 mW (Super-Duper Geek)
• Native decoded  music format in PCM: 44.1, 48, 88.2, 96, 176,4, 192, 352.8, 384 kHz / 16, 24, 32 bits.
• Native decoded digital format in DSD: 2.822, 3.072, 5.644, 6.144 mHz / 1 bit
• "Class A" analogue output stage, THD+N better than 0.005 %, SNR is 103dB (none-weighted), 109dB (A-weighted)
• Sample rate indicator LEDs, machined aluminum enclosure in three different colors, with 6" USB cable, driver for PC (plug and play on MAC and Linux)

Website: LH Labs
Price: US$ 299

AURALiC Gemini 2000 headphone amp

DAC with a 2 Watt class A headphone amp build into a Klutz design headphone stand.

Output: 6.3mm jack / 4-pin XLR.

Input:
USB
Toslink
3.5 mm analog

Integrated SDXC card reader
File format: PCM 24/384, DSD128

Website: AURALiC
Price: US$1995

Resonessence Labs Herus

In case of small portable USB DACs there is the flavor of the month DAC

There is the Audioquest DragonFly doing 24/96.

This was pretty soon surpassed by the Meridian Explorer doing 24/192

Now there is the Herus supporting PCM up to 24/352.8, DXD and DS64/128

Herus $ 350.00

Small PCM and DSD capable USB DAC
63.5mm (2.5in) long, by 31.7mm (1.25in) wide and 19mm (0.75in) high

Asynchronous USB Audio 2.0: PCM bit width 24 or 16
Supported Data Rates: 44.1, 48, 88.2, 96, 176.4, 192 and 352.8 Ks/S
Supported Formats: PCM, DXD and DSD64/128 Uses DoP protocol 1.1 over USB for DSD
Operating Systems MS Windows, MAC OS and Linux

Use the Resonessence Thesycon Driver for USB Audio 2.0 on Windows
Output Signal Level At Maximum Volume level: 2.4 VRMS
Output Impedance:   0.2 Ohms
SNR at least 100 dB, Typically 108dB
THD at least 85 dB, Typically 90dB

Rotel RA-1570

Two years ago a DAC featuring an asynchronous USB input was news.

Today, a DAC without async USB is news and as far as I am concerned, a showstopper.

In the amplifier world, async USB input is still rare.

Rotel is one of the exceptions to this rule.

I wouldn’t be surprised if in a couple of years a USB input is as common as a RCA.

Asynchronous USB 24 bit / 192 kHz
Wolfson WM8740
2x 120 wattAB into 8 Ohm

Website: Rotel
Price: € 1599

QNKTC AB-1.2 USB DAC

Asynchronous USB DAC at a bargain price

• One USB-I2S Module plugged into the Analog Board
• Golledge high-quality XOs at 22.5792 and 24.576MHz
• Asahi Kasei AKM4430 DAC
• Low-noise 3.3V LDOs by Demain and Oneoclock, or ADP151
• RCA (phono) stereo output
• Headers for alternative power supply designs
• Unpopulated connectors for RS232, LCD etc.
• Bootloader buttons so you don't have to pop open the box to reprogram the MCU
• You must provide an USB 2.0 mini-B cable. It is not included.

Open source drivers for UAC2 (24 bit / 192 kHz) and ASIO.


Website: QNKTC
Price: US$ 135

Matrix Audio X-Sabre

Looking at the connectivity of this DAC and its price, it will probably become the DAC flavor of the month.

• Asynchronous USB
• DSD×64 (2.8224MHz) / DSD×128 (5.6448MHz）over USB
• Sample rates supported USB: 16-32Bit @ 44.1kHz/48kHz/88.2kHz/96kHz/176.4kHz/192kHz/352.8kHz/384kHz
• Sample rates supported Coax/AES-EBU: 16-24Bit @ 44.1kHz/48kHz/88.2kHz/96kHz/176.4kHz/192kHz
• Low latency ASIO/KS drivers supported
• Drivers available for: Windows XP/ Windows Vista/ Windows 7
• 4 ESS 9018 Sabre Reference DAC per channel
• XMOS X-CORE 32Bit/500MIPS DSP

Website: Matrix Audio

Price: US$ 1,099.95 

Meridian Explorer

Portable USB DAC with analog volume control on the headphone out, fixed line out combined with Toslink out.

Asynchronous 24/192 USB (XMOS) with driver for Windows.

Website: Meridian

Price: € 295 

Woo Audio WA7 Fireflies

Class-A tube headphone amplifier with asynchronous 24/192 USB Audio Class 2 input.

• C-Media 6631 USB chip
• TI PCM5102A 32-bit DAC chip
• Distortion: <0 .03="" li="">
• S/N: 95dB

Website Woo Audio
 Price: $999

Lector D i g i t u be D S D

 DAC with a tubed output stage (ECC-81/12AT7)





Asynchronous USB support up to 32 bit / 384 kHz. Driver for Windows
Supports DSD over USB

Inputs

- Spdif IEC-958 as RCA connector / 192 Khz 24 bit
- Spdif IEC-958 as BNC connector / 192 Khz 24 bit
- AES-EBU AES-3 as XLR connector / 192 Khz 24 bit
- Opto toslink digital input / 192 Khz 24 bit
- Asyncronous USB / 384 Khz 32 bit
- Word Clock

Unbalanced output / 2.5 volt 250 ohm

Website: Lector
Price:  € 1990

Bryston BDA 2

Another DAC with the almost mandatory asynchronous USB input.

 

 • Dual 192K/32Bit AKM DAC’s
• Independent dual power Supplies
• Discrete Class A analog output stage
• Selectable synchronous upsampling (176.4K/192K)
• Independent analog and digital signal paths
• Inputs: 192/24 USB (1, asynchronous), COAX (2), OPTICAL (2), AES-EBU (1) BNC (2)
• Fully differential balanced XLR and unbalanced RCA stereo outputs
• Transformer coupled SPDIF and AES EBU digital inputs
• SPDIF COAX bypass loop output

Website: Bryston BDA 2
Price: US$ 2395,-

iFi iDAC

Small pre-amp with line out and headphone out.
24 bit / 192 kHz asynchronous USB input
ESS Hyperstream Chipset

Specifications:
Signal to Noise Ratio:	>111dB(A)
Dynamic Range(-60dBFs):	>111dB(A)
Crosstalk:	<-102db td="td" z="z">
Total Harmonic Distortion(THD):	<0 .005=".005" td="td">
Jitter:	Below measurement limit
Frequency Response:	3Kz to 33KHz + 0.1dB/0.3dB
Headphone section:
Output Power:	>150mW(15Ω)
Signal to Noise Ratio:	>97dB(A)
Total Harmonic Distortion:	<0 .003=".003" mv="mv" td="td">
Noise:	<-86dbu td="td">
Output Impedance:(Zout):	<10 td="td">
Power Consumption:	< 2.5W
Dimensions:	158(l)x68(w)x28(h)mm
Weight:	193g(0.43lbs)

Website: iFi
Price: US$ 299

Electrocompaniet PI 2D Integrated Amplifier

2 x 100 Watts integrated amplifier with digital and analog inputs.
Digital inputs: two Coax, two TOSLink and one 24/192 async USB
Analog input: 1 balanced XLR input and four single ended RCA inputs.

Technical specifications:
• Input impedance ( Single Ended ): 60 kOhm
• THD + N: < 0.005%
• Output Impedance: < 0,03 Ohm
• Frequency response: 1 – 225kHz
• Channel separation: > 120 dB
• Noise floor ( 1Vrms, 20 - 20 kHz, balanced): <-130 br="br" db="db">• Damping factor: >300
•Rated output power
8 ohms 2 x 100 W
4 ohms 2 x 165 W
2 ohms 2 x 220 W


Website: Electrocompaniet
Price: €3.150