USB audio transport of the second generation Reflex

06.02.2024

We have fully completed the development of the second-generation Reflex USB transport. The board is available in two releases Reflex 2.0Pro and Reflex 3.0

The last feature that we added just yesterday is audio playback in DSD (Direct Stream Digital) format. Starting today, all Reflex 2.0Pro and Reflex 3.0 users can upgrade the firmware to v2.3.1. It will be possible to play DSD over PCM (DoP) - up to DSD256 inclusive and DSD Native - up to DSD512 inclusive.

With the new capabilities, the second-generation Reflex transports have virtually no competitors left.

Reflex 2.0Pro

 

Reflex 3.0

The main features of Reflex transports of the second generation

  1. Playback of the PCM format with a maximum sampling rate of 762kHz and a bit rate of 32
  2. DSD512 native or DSD256 DoP playback
  3. Playback of multi-channel Surround sound in PCM format. Up to 16 channels to choose from, starting with stereo
  4. Recording stereo sound with studio quality with a maximum sampling rate of 762kHz and a bit rate of 32
  5. Two I2C ports for controlling external DACs and ADCs
  6. Two SPI ports for controlling external DACs and ADCs
  7. LED control port with address indication
  8. Thirty-two GPIO outputs for connecting external controls and displays (potentiometers, buttons, switches, LEDs, encoders)
  9. It is programmed using ChipStudio, SigmaStudio, PurePathStudio software
  10. Hardware adjustments
  11. Free change of Vid/Pid
  12. ASIO drivers from any third-party manufacturers.

All well–known modern USB - I2S music converters for playing HiRes audio streams are at least somewhat behind Reflex. There is no need to compare it for a long time, let's give examples.

Example 1, the very popular Amanero is consistent with Reflex only in playback frequency/bit rate in PCM and DSD formats. It also has native DSD512 and PCM 384kHz/32.
But only stereo! There is no Surround sound! There is no record! You can't connect anything to it just like that.

Or example 2. A transport built on an old CM6631 chip is a hardware transport from Cmedia. It is possible to record, but there is no DSD and PCM only up to 192kHz. Although it has a built-in 8051 controller.

Number 3. In fairness, XMOS should be noted. This is a British company engaged in the development of multithreaded multicore processors, whose products are successfully used in most high-quality USB DACs around the world. So transports built on XMOS controllers may override all of the above features of Reflex in terms of functionality. Except for point 9! But not all XMOS features are available without Licenses, which is worth something. Everything in the Reflex project is open and free!

In conclusion, it should be noted that the development environment for your audio projects ChipStudio allows developers with little or no experience to add high-quality digital signal processing to their projects based on Reflex transports. In the end, we will always help you in the CHIP and DIP Engineering Area.