Doesn't matter now, as Gan are out of stock of these now for 36 weeks.
I'll re-introduce then.
GaN Class-D feature packed amplifier from GaN USA themselves limited supply!!!
The thread derailers are out yet again. Ok I’ll bite, let see what your Class-D can do tested by Amirm, and if it can maintain full power into 4ohm continuously when it comes. For those that wish to know these are the specs from Gan themselves, on this Class-D Evaluation Board Test and Validation Following are the results of both the initial Characterization that was performed on the Class-D Amplifier platforms. Unless otherwise noted, the Characterization was performed under the Power Supply conditions that allow for the specified Target Market specification of 200W/8-ohms. This requirement resulted in Power Supply Voltage rails of +/-32VDC. This selected Power Supply definition provides up to 200W of clean power into 8 ohms, (as captured in Figure 5.1 below).Figure 5.1 https://ibb.co/Jm9vbG5 with user switchable low or high feedback The owner gave it to Amirm for testing set at low, high would have measured far better in the tests. Amirm: "his focus was to keep the level of feedback low to show the advantage of the GaN transistors not needing much. He was not aiming to produce the best performance possible. Personally I wish he had targeted that, given that is what we like to see here." And yes one thing the detractors got correct, more power can be obtained with added heatsinks and a higher voltage smp later if an owner needed more (I believe this has more than enough). But I’ll still say like any Class-D, it/they are not for the 0.9ohm EPDR load that Wilson Alexia’s and others present especially in the bass. Also they still need what Technics did with their SE-R1, and raise the switching frequency from 600khz to 1.5mhz so the output filter can do it’s job of filtering it out so this sort of 70 degrees of phase shift is not in the audio band. https://ibb.co/LpMkm8Y Cheers George |
There are other retailers they were sent to though, even cheaper at $940!!!! at bottom of this page. https://gansystems.com/where-to-buy/ Pics from the video https://ibb.co/wMf0nGS https://ibb.co/wMf0nGS https://ibb.co/r3zjQyR Cheers George For those wanting one, here’s a place (subsidiary of Arrow Electronics) that has 5 of them, and they’re cheaper here too, only $940!!! https://www.richardsonrfpd.com/Products/Product/GS-EVB-AUD-BUND There must be others as GaN has about 50 outlets world wide on the GaN where to buy page, bottom of this page. https://gansystems.com/where-to-buy/ Cheers George |