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Firmware for the Digital Preamplifier/Crossover
This ZIP package contains various pieces of software required for the Digital Preamplifier and Crossover, including:
- The HEX file to program the microcontroller
- Source code to build that HEX file
- The USB interface driver
- The DSP source code
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Digital Preamplifier main PCB [01107251]
The main PCB for the Digital Preamplifier.
Four-layer PCB with plated through holes, green solder mask and silkscreen overlay.
331.5 x 150.5mm.
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Digital Preamplifier front panel control PCB [01107252]
The front panel control PCB for the Digital Preamplifier.
Double-sided PCB with plated through holes, green solder mask and silkscreen overlay.
108.5 x 24mm.
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Digital Preamplifier power supply PCB [01107253]
The power supply PCB for the Digital Preamplifier.
Double-sided PCB with plated through holes, green solder mask and silkscreen overlay.
127 x 76mm.
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PIC32MX270F256D-50I/PT programmed for the Digital Preamplifier/Crossover [0110725A.HEX]
A 32-bit PIC microcontroller in a 44-pin SMD TQFP package programmed with the firmware for the Digital Preamplifier and Crossover (0110725A.HEX).
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Digital Preamplifier/Crossover PCB patterns (PDF download) [01107251-3]
Two PDFs with the PCB patterns for the Digital Preamplifier and Crossover.
The main PCB (01107251) has four layers, spread out across four pages of a dedicated PDF. This is provided as a reference only.
The front panel (01107252) and power supply (01107253) boards are double-sided and both of their layers are combined into the second PDF.
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3D printing files for the Digital Preamplifier/Crossover
This ZIP contains several .stl files of 3D models that can optionally be used to create labels and logos on the Digital Preamplifier and Crossover.
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Digital Preamplifier/Crossover case drilling diagrams
A two-page PDF with all the drilling diagrams for the Digital Preamplifier and Crossover.
Note that some diagrams are at 50% scale, others at 100% scale. Check the annotations.
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