Hi!
I have some prototypes on ebay, "make your offer" listings. I am interested in feedback from real audiophiles who enjoy fine sound quality. Since 2019 when I started the project, I sold a dozen, with modifications that improve their features step by step. The design is close to the end production, but not finished yet, so you have chance to get the working prototypes and participate such a way in R/D process, helping me to self-finance it.
https://www.ebay.com/itm/185295464131
https://www.ebay.com/itm/185288710253
I have some prototypes on ebay, "make your offer" listings. I am interested in feedback from real audiophiles who enjoy fine sound quality. Since 2019 when I started the project, I sold a dozen, with modifications that improve their features step by step. The design is close to the end production, but not finished yet, so you have chance to get the working prototypes and participate such a way in R/D process, helping me to self-finance it.
https://www.ebay.com/itm/185295464131
https://www.ebay.com/itm/185288710253
Let me be clear, why I am building this prototypes, and why I am selling them.
First of all, I am an old school engineer. I do not trust computer simulations. They are not accurate, they may not show that some bolt is under the board impossible to reach, that heat dissipation is not optimally organized, and so on. Building prototypes I check my schematic ideas, I adjust values to get the most ideal sound reproduction that I can. I can see how easy it can be in the production to assemble, to repair if needed. How convenient are controls.
I offer them time to time on eBay or on online forums to people who would appreciate them and give some new ideas. If I feel like the person can value it properly, enjoy it, I can give a pretty good deal.
But it does not mean that I can give a good price to a person who does not know what he/she buys, and wants it cheaper.
And I am selling them as is. I do not take custom orders. However, I can add some modifications if I believe that won't increase costs much, but from which the future production would benefit. I you like some random ideas of random people expressed on forums, please do not ask me to make from my amp something cobbled from such ideas. It is not my business. Better DIY, or find somebody who build custom designs.
I planned to start manufacturing back in 2020, but you all know what happens. Especially now, when people better buy gas and food instead of something that is not necessary to survive.
So, while the market is not favorable yet, I continue my R/D searching for new ideas, to offer something different.
And here is the example:
First of all, I am an old school engineer. I do not trust computer simulations. They are not accurate, they may not show that some bolt is under the board impossible to reach, that heat dissipation is not optimally organized, and so on. Building prototypes I check my schematic ideas, I adjust values to get the most ideal sound reproduction that I can. I can see how easy it can be in the production to assemble, to repair if needed. How convenient are controls.
I offer them time to time on eBay or on online forums to people who would appreciate them and give some new ideas. If I feel like the person can value it properly, enjoy it, I can give a pretty good deal.
But it does not mean that I can give a good price to a person who does not know what he/she buys, and wants it cheaper.
And I am selling them as is. I do not take custom orders. However, I can add some modifications if I believe that won't increase costs much, but from which the future production would benefit. I you like some random ideas of random people expressed on forums, please do not ask me to make from my amp something cobbled from such ideas. It is not my business. Better DIY, or find somebody who build custom designs.
I planned to start manufacturing back in 2020, but you all know what happens. Especially now, when people better buy gas and food instead of something that is not necessary to survive.
So, while the market is not favorable yet, I continue my R/D searching for new ideas, to offer something different.
And here is the example:
I have an idea. To use internals of my Preamp Plus, but without input switch and sockets, but with bigger power transformer and headsinks. It will be an OTL headphone amp for planar magnetic headphones.
Dynamic VS planar headphones. When driven by Edelweiss Power Amp Plus they sound much cleaner, and as loud as loudspeakers.
The last version is the best. Unbelievably real sound even from JBL monitors. I figured out how to assist SE by a pulling current from the other side of PP transformer, without changing SE signature.