Related Manuals for ECdesigns PowerDAC-BX
Summary of Contents for ECdesigns PowerDAC-BX
- Page 1 PowerDAC-BX User Guide 1 17 © 1990-2023 - All Rights Reserved - ECdesigns...
- Page 2 Introduction The PowerDAC-BX is a discrete multi-bit DA converter without -any- amplifiers or buffer circuits in the signal path. PowerDAC-BX has fixed output. Balanced linear power-supply and resistor attenuator are used to generate the output signal. The PowerDAC-BX is intended for driving amplifiers and headphones.
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Page 3: Block Diagram
Block diagram 3 17 © 1990-2023 - All Rights Reserved - ECdesigns... - Page 4 The end result is an accurate and clean multi-bit power DA converter with low enough output impedance to directly drive the outputs. This way all lossy analogue circuits and related unavoidable degrading, typically required for conventional DACs can be avoided. 4 17 © 1990-2023 - All Rights Reserved - ECdesigns...
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Page 5: Technical Specifications
LED indicator Dim = power on, bright = locked PowerDAC-BX and The PowerDAC-BX makes it possible to directly drive many headphones (32 Ohm and up) without any analogue amplifier or buffer in the signal path. In other words the headphones headphones are directly driven by a balanced power supply, a number of digital on / off... - Page 6 Technical specifications PowerDAC-BX PAGE 2 POWER Output Voltage shifts attenuation in dB Volume Fixed output Output 1.77 V ms 6 17 © 1990-2023 - All Rights Reserved - ECdesigns...
- Page 7 DAPI firmware The DAPI firmware can be updated using the USB socket and jumper setting positions for firmware update. update Dimensions Width: 23cm, Height: 5cm, depth: 23cm Weight 1.5 kg 7 17 © 1990-2023 - All Rights Reserved - ECdesigns...
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Page 8: Jumper Settings
Jumper settings Disconnect the mains power cable from the PowerDAC-BX ! In order to access the jumpers, remove the PowerDAC-BX TOP cover by removing 6 x 2mm hex bolts. Carefully remove or place jumpers using tweezers. When replacing the top cover, make sure side, rear and front panels lock into the top cover slots correctly before tightening the 6 hex bolts. -
Page 9: Firmware Update
Use tweezers to set jumpers to PROGRAM configuration (see Jumper settings on previous page). Download and unzip latest pdrs-firmware.zip Now connect a USB cable from the PowerDAC-BX to your computer and start the STM32CubeProgrammer. 9 17 © 1990-2023 - All Rights Reserved - ECdesigns... - Page 10 Press the OK button on message window. Finally click on the Disconnect button to finish session. You can then close the STM32CubeProgrammer. Remove the USB cable between PowerDAC-BX and PC. Set jumpers to the normal positions. After power-up PowerDAC-BX the new firmware is used.
- Page 11 Use tweezers to set jumpers to PROGRAM configuration (see Jumper settings on page 9). Now connect a USB cable from the PowerDAC-BX to your computer. Now copy the firmware file (see page 10) e.g. PDRS140.bin into the same directory containing the dfu-util executable.
- Page 12 UT192 (Optical + ElectroTos output) The UT192 is an optional high-speed USB to Toslink converter that can be used with the PowerDAC-BX or other Toslink DACs. It supports USB high-speed: 44.1kHz / 48kHz / 88.2kHz / 96kHz / 176.4kHz / 192kHz The UT192 is based on the XMOS processor.
- Page 13 RF ground loop noise and very large bandwidth noise in general. ElectroTos offers low jitter, blocks RF ground loop noise and offers a clean, band-limited output signal. 13 17 © 1990-2023 - All Rights Reserved - ECdesigns...
- Page 14 It has 4 S/PDIF inputs and includes a remote control for selecting the active input. Digital Audio-Switch When using the PowerDAC i.c.w. an external (pre)amplifier performance is degraded as any active device in the audio path will degrade performance ! 14 17 © 1990-2023 - All Rights Reserved - ECdesigns...
- Page 15 If you are looking for simple music player for stand-alone or even multi-room to use with the PowerDAC-BX checkout piCorePlayer. When run from an RPI4 you could connect your music to the RPI4 directly by USB or to NAS via network.
- Page 16 Audirvana Origin (default settings with volume set to 100% on MacOS) Korg AudioGate Lite 44/48(with volume set to 100% and buffer size to 256 samples on MacOS) * follows sample-rate on MacOS 16 17 © 1990-2021 - All Rights Reserved - ECdesigns...
- Page 17 Hardware player that is able to produce bit perfect output to PowerDAC: • • piCore player (with correct settings and volume 100% on RPI) 17 17 © 1990-2021 - All Rights Reserved - ECdesigns...