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Crowdfunding in Russian: how it was

My crowdfunding project “Russian Audio Cards” is nearing completion. Working on this task gave me an interesting experience in both sales and product design. I want to share this experience, because I am personally interested in such projects as a consumer: I would prefer the domestic macro series, which is developed primarily for the consumer, in order to show my professionalism and author’s handwriting. So, crowdfunding in Russian - as it was ...

Before the publication on Habré , the conversion was absolutely zero. After publication, the situation changed dramatically, and it became possible to observe what was happening.



And the following happened:

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The path to perfection


For the developer, it is absolutely natural for the desire, if not to come to the ideal, then bring its brainchild to mind. In order to do this, we need feedback. The Internet provides a unique opportunity to get feedback (criticism, advice) with minimal effort. I got very interesting people, professionals who spent their time to help the project. For example, comrade GReY Rage made an expert evaluation and measurements of the first sample of the sound card, which allowed us to speak in detail about upgrades.

Modification first. Since the situations in which you intend to use the card are different for everyone, I left the customer the opportunity to choose the length and color of the USB cable.

Modification of the second. The money of patrons will allow you to order a fee with a new topology. The capacity of the output capacitors will be increased to 420 μF, which made it possible to obtain, for example, for the Sennheiser CX 300-II , a lower limit of 23 Hz.

In the picture you can observe the test stand:



These two upgrades will definitely be implemented. If there are more sponsors, then the following upgrades can be made:

Modification of the third. Power supply for the microcircuit and transfer it to self-powered mode. Theoretically, this solution can reduce the nonlinear distortion factor by half when working with an amplifier.

Modification of the fourth. Suddenly it was discovered that quite decent TTL generators are being produced in Moscow. Even the use of the simplest oscillator instead of a quartz resonator allows for a more accurate and transparent sound at the output. It will be possible to install one of the Russian generators and the second voltage stabilizer for it and the analog part of the DAC. This will allow the audio card to become the first product of this class, on which the quartz oscillator is installed.


Prospects and opportunities for crowdfunding


Leading a crowdfunding project, I made important conclusions for myself:

Source: https://habr.com/ru/post/146696/


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