Recent content by gr-e

Sounds like your dac mutes the output when there's no audio, and the input on your speakers is left floating. You can try a software solution to keep the audio stream alive (Sound Keeper, for example). Personally, I'd just use the speakers' built-in dac instead.

That's unfortunate, did you contact Topping? The Omron relay is supposed to be yellowish, you can see it in the photos I posted here. In any case, it only switches the headphone output, not the speakers. You can look under the heatsink if you're curious, maybe something gone bad in there. I...

I don't really see any edge diffraction in the current version. There is some above 7k, but I would guess it's related to the waveguide. In any way, it's a good design, curious to see how the improved version compares.

Correct, however the cap is marked as 0.75uF which would be 0.00075mF or 750nF. I would use uF to avoid confusion, but VituixCAD switches the units automatically

You can actually see the value in the picture from post #79, it's 0.5mH I'm wondering if the low sensitivity in the midrange is a driver issue or if it's caused by the crossover.

Am I actually reading this... There are at least three reviewers that used your speakers without feet screwed in. Imagine how many unsuspecting customers have done the same and ended up with an underperforming speaker. How this doesn't concern you in the slightest is beyond me. The reviewers, on...

No! You really shouldn't twist two wires with 240v between them Same phase, but different taps. Here's a neat drawing I found. As you can see, all three wires are connected to the same winding: A similar EU wiring would look something like this:

Does anyone have remote codes for the RC-13a remote? I'm specifically interested in play/pause, next and previous track buttons

Thanks for including this measurement. >200uV idle noise seems a bit high but totally understandable considering the amp's power capability. Still, I'd be worried about hiss in a nearfield setup. The datasheet mentions output noise <85 μV, but I guess it's lower because of A-weighting.

Is the front chamber vented in this IEM? I can see a vent near the 2 pin connector, but I assume it's for the rear volume.

https://www.genelec.com/en/-/event/join-our-global-launch-event-1 It's It was in the image title. Yeah they changed the link. The old image is still available though...

Could it be Genelec 8381? I'm curious what's the use for 2 midwoofers (mids?) so far apart. Or maybe 4 midwoofers surrounding a coaxial unit?

Soup Classic Motoring - a car restoration channel with some amazing stop-motion footage

It doesn't send PWM signal to speaker. This is a fairly common "direct digital" aka "power dac" architecture: the PWM processor sends PWM to the power amp stage, which outputs your normal analog sine wave. In comparison, a conventional class D amplifier generates PWM by comparing the audio...

Yes, it's pin 40. As far as I remember, I just traced it from the Infineon amp with a continuity tester (the trace itself goes through the middle layer). Well, I just copied the relay circuit from the headphone amp section. I've since upgraded it with dual 5A relays: