audio:audio_by_van_alstine_work
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audio:audio_by_van_alstine_work [2021/03/21 02:14] – [Vision SLR, Fet Valve CFR] mithat | audio:audio_by_van_alstine_work [2023/01/02 21:13] – [DVA Digital Preamplifier] mithat | ||
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[[https:// | [[https:// | ||
- | New line stage based on a discrete, class-A, solid-state gain stage I developed as an independent project. | + | New line stage based on a discrete, class-A, solid-state gain stage (developed as an independent project). |
**Contribution: | **Contribution: | ||
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Working with application engineers at AKM, I developed support circuitry for the AK4490EQ whose low-frequency reference voltage stability was significantly greater than the circuits used in AK4490EQ reference designs. This in turn reduced the low frequency nonlinearity of the DAC appreciably over more conventional approaches. | Working with application engineers at AKM, I developed support circuitry for the AK4490EQ whose low-frequency reference voltage stability was significantly greater than the circuits used in AK4490EQ reference designs. This in turn reduced the low frequency nonlinearity of the DAC appreciably over more conventional approaches. | ||
- | This would be the first design that required AVA to use microcontrollers they would burn in-house | + | This would be the first design that required AVA to use microcontrollers they would burn in-house, and it did so in a big way. I ended up using three independent microcontrollers in the final product, one for each of the DAC’s core functions: input selection and control, DAC control, and the user interface. Also notable in this design is the scale to which SMD technology was adopted and the high level of build integration. These required introducing significant changes to AVA’s manufacturing workflow, which in turn brought AVA’s production methods more in line with modern approaches. |
===== Vision SLR, Fet Valve CFR ===== | ===== Vision SLR, Fet Valve CFR ===== | ||
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Fully remote-controllable chassis and supporting circuitry. | Fully remote-controllable chassis and supporting circuitry. | ||
- | **Contribution: | + | **Contribution: |
**Discussion: | **Discussion: | ||
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**Contribution: | **Contribution: | ||
- | **Discussion: | + | **Discussion: |
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+ | ===== RC3 ===== | ||
+ | c. 2020--2021 | ||
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+ | Embedded design for IR remote control sending with silicone membrane switches. | ||
+ | |||
+ | **Contribution: | ||
+ | |||
+ | **Discussion: | ||
===== DVA Digital Preamplifier ===== | ===== DVA Digital Preamplifier ===== | ||
- | 2018--2021 | + | c. 2018--2021 |
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+ | **Contribution: | ||
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+ | **Discussion: | ||
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+ | The DVA Digital Preamplifier also brought forth a new design aesthetic and chassis design that I originally intended as a one-off transitional one. As is often the case, it took a good amount of work to convince AVA of the merits of making the change. But once the design was released, it received, for the first time ever for an AVA product, praise in the audiophile press for its aesthetics. Likely as a result of this, AVA asked me to design or redesign faceplates for a variety of new and existing products. | ||
+ | |||
+ | What this means is that my original plan of transitioning to a brand new design program that takes into full consideration user, business, and manufacturing requirements will be delayed. I regard this as an odd manifestation of [[https:// | ||
+ | ===== DVA A2D ===== | ||
+ | c. 2021 | ||
+ | |||
+ | **Contribution: | ||
+ | |||
+ | **Discussion: | ||
+ | |||
+ | ===== DVA R2X ===== | ||
+ | c. 2021 | ||
- | Coming soon | + | **Contribution: |
+ | **Discussion: | ||
===== The present ===== | ===== The present ===== | ||
- | I continue to provide consulting services to Audio by Van Alstine, particularly in the areas of digital audio, small-signal analog audio, | + | I continue to provide consulting services to Audio by Van Alstine, particularly in the areas of digital audio, small-signal analog audio, |
===== The future ===== | ===== The future ===== | ||
- | Within audio, my work focuses on developing solutions that represent meaningful audio progress rather than chasing | + | Within audio, my work focuses on developing solutions that represent meaningful audio progress rather than chasing |
audio/audio_by_van_alstine_work.txt · Last modified: 2024/07/02 21:32 by mithat