Message Board

OK I tried again.

Does this look better to anyone?

Anyone... Bueller...

Glenn Gould playing Bach. It's in a few parts. Parts 4-6 are of the studio footage. I linked part 4 below. What an amazing room, amazing performer. Looks like three M49 (M50s?). Too bad this room was torn down. I particularly like the exchange where the engineer asks Gould if he's superstitious. The...

I've built the Royer mod. I don't want to use a voltage tripler for this one. Smart folks like David Bock, Gunter Wagner, Oliver Archut, Klaus Heyne all seem to agree that the power supply design is very important to the sound of the microphone. I want to do a power supply that's more in line with t...

I've been learning and working all day and here's what I've come up with. This is just my first draft, so I'm sure there's problems. I'm a rookie at PSU design. That's why I'm asking! I hope you don't mind, but I have the eyes over at prodigy-pro taking a look at it, too. Hope you don't mind the cro...

OK, so I've been doing some learning. The U47 draws 40mA of current according to the schematic. That makes the math rather easy for that particular circuit. Where I get hung up is this-- I plan on a separate heater supply for my microphone, which will use an EF12 tube. To my understanding, the lion'...

So I want to build a tube microphone. I've been working on an adaptation of a U47 to use a more readily available tube. I know this has been done a bunch but this one is my own design. The U47 is so simple that even someone with a modicum of knowledge of tube circuits can figure it out with only a l...

Thanks for posting that. I really hadn't considered that, I appreciate you making that known (even if that was obvious to everyone but me). I do know that in the design world, with information design specifically, when you see graphs you kind of assume they're formed by putting information in a pro...

Re: measurement. I think the clearest analogy for me is to think that looking at a frequency response curve will give you a good sense of a microphone's sound. As in: "Sure it's bright, but in a good way or a bad way?" I think empiricism is still king. This is not to exclude measurement, I just hav...

if there is such a huge difference in converters, why doesn't it show up on measurements (differences within .1db or less, noise specs very very close, etc)? This has the potential to be a very interesting topic of conversation, perhaps deserving of its own thread. It could even salvage this one! I...

A few points to consider, independent of membrane/capsule size: many microphones have integral high-pass circuitry, even those in which this circuitry is NOT switchable. Did you know that the M49 and U67 have built-in high-pass and low-pass filters? Equally important to membrane diameter is membrane...

eeldip wrote:i am very sure that everyone's 90's digi gear in fact sucked. and when they upgraded to something manufactured 7 years later, they heard a decent improvement.

According to at least one person on this thread, converters are a "mature" technology.

Not to be a dick , but did you take steps to eliminate potential bias when listening to the converters that you say sound MAJORLY different? What converters are you referring to? No, I didn't, and that's a fair point. But differences I've experienced haven't seemed subtle enough to me that I would ...

Let's look at some numbers for the Burl: Frequency response at 48kHz sample rate is 12Hz to 22kHz, +/- 0.1dB Frequency response at 96kHz sample rate is 15Hz to 46kHz, +/- 0.1dB Frequency response at 192kHz sample rate is 18Hz to 94kHz, +/- 0.1dB Those are the numbers for deviation from bandwidth. To...

No, we spend a lot of time on conversations about what compressor / preamp / converter / monitor / microphone / DAW / plug-in / etc. is better On the "gear" section of a message board devoted to recording and audio, I don't think those discussions lack perspective at all. In my opinion, this is the...

Burl... designed to not be linear but impart euphonic distortion. Not trying to be a dick, but what is this claim based on? Here's a statement from Burl's own literature on the B2 ADC: By using a revolutionary hybrid circuit with a proprietary transformer, the BURL AUDIO BX1, and a discrete class-A...