The NewOntech DAC 07SE is a 16/20/24/32-bit at 32kHz to 192kHz digital to analogue

converter. Incorporating an enhanced version of the NewOntech designed circuit,

the DAC 07SE offers the highest possible resolution over all inputs including fully asynchronous USB. Developed to be simple to set up and use, the NewOntech DAC 07SE is designed to optimize performance from any two channel PCM digital audio source.

With the PC now widely accepted as a credible medium for storing and streaming music, the use of high-quality lossless files such as WAV, FLAC and ALAC offer performance through the DAC 07SE equal to and in some cases better than Red Book CD. Great care has been taken to remove

noise generated by the PC and other input sources. (During development this was identified as a major drawback with many DAC’s on the market today).

The DAC 07SE is housed in a custom aluminum case and using a Burr-Brown

DAC IC’s, a custom designed analogue filter and one asynchronous USB, two Co-axial inputs, one BNC & tree Toslink SPDIF inputs.

The DAC 07SE has been designed and engineered to integrate perfectly into any system and achieve the highest performance in its class. We hope you enjoy this NewOntech product for many years to come.

Technology

The optical and coaxial input stage comprises a Crystal digital receiver. The receiver

and PLL have their own dedicated power supplies. The DAC stages comprises a Burr Brown DAC, that are driven via a buffer stage, which ensures the integrity of the data being fed to the DAC IC’s.

The USB input stage is comprised of a bit perfect Amanero USB Audio 2.0 with asynchronous clocking. The USB input feeds the DAC through I2S interface, which ensures low jitter and perfect timing. The output amplifier employs a discrete differential, multiple feedback filter and output amplifier, with a high cut-off frequency for use with higher sample rates. We decided not to use a sample rate converter and process the data at the incoming sample rate which keeps the signal processing to a minimum. Jitter was minimized by synchronously clocking the digital data

with our receiver PLL (removing any jitter from the input signal).

All the capacitors associated with the analogue signal path are audio grade

bypassed with MMK polyester capacitors. The power supply utilizes a toroidal transformer, fast rectifier diodes and again audio grade capacitors. Special attention being paid to the inter IC control signals ensures the control data noise is kept to a minimum.

Power on/off. When the power button is pressed the power led illuminates.

A rotary switch selects between the 8 available digital inputs.

Backpanel input/output

Inputs

• Optical Digital Input 1- Optical/Toslink
• Optical Digital Input 2- Optical /Toslink
• Optical Digital Input 3- Optical /Toslink
• Co-Ax Digital Input 4- 75Ω Co-axial BNC
• Co-Ax Digital Input 5- 75Ω Co-axial Phono
• Co-Ax Digital Input 6- 75Ω Co-axial Phono
• Co-Ax Digital Input 7- 110Ω Co-axial XLR
• USB – Digital Input 8- Asynchronous/type B connector

Outputs

• Analogue Output Left and Right Phono
• Analogue Output Left and Right XLR
• Power Mains/line input IEC C13 type

Fuse Fuse holder