Recent content by drtechno

The differences is internal gain structure of the amps. The Roland that was mentioned was one of the few solid state amps with the same gain structure and internal signal levels as a tube amp. The output stage of a tube amp has no real advantages or disadvantages compared to changing it out with...

Its not a big deal as people think, but over time, you have to clean the equipment. I bought used studio equipment from someone who smoked cigarettes and weed in their control room for 20 years. Some stuff I cleaned controls, but most of the smoke residue was on the boards that I just cleaned...

Yes, there is a solution to eliminate the spurious interference. But its not a cheap solution. You buy copper screen mesh, attach it to the walls and ceiling (physically and electrically to each section of screen, and ground it. The inside door also must be covered with mesh and grounded if its...

I imagine the character is the same, but slightly different from different mic pres due to the way they make the input circuit so they can provision a condenser mic. The Phantom power circuits as well as the coupling are losses the passive dynamic mic must pass through. In reality, the input...

Their indicators from -7 to -2 is amber, and -1 to 0 is red.

Its a generic 2nd source switching power supply, but what usually happens to them and Mackie boards like them is the power supply plug gets slightly unplugged in them if you move them around a lot. 9 out of 10 times I had one come to me for a repair always was this connector. So I bet if you...

I would have to dig and find info on the 1820 but the omega is an instrumentation amp type like is in a lot of interfaces (INA217)

ISA 110 is an op amp mic preamp and the loss interaction is centered around its input transformer that terminates with a 2.2K resistor. But the termination impedance is not constant, so its higher input impedance at lower gain levels.

I find it interesting you chose mic preamps that have front ends of analog consoles. That is why I think someone should make a list so people can see what mic preamp they really have. It will be impossible to find schematics for some of them. Especially the presonus. But that mic preamp is the...

Sounds like those USB to midi interfaces. They work with most systems because they are usb compliant. They would even work in linux. I do remember someone making linux divers, did you see if it works in linux? I can't remember if that driver was added to their firmware db (linux firmware).

I would mix it up. But the mic test no one has done yet is across mic preamps in interfaces. Because the noise floor and tone is going to change going from one to another besides the mic. But I also want to point out, no forum has listed the mic preamp type for each interface either. I noticed...

Diameter and height. It will narrow down who I bug for a transformer. Because certain people only deal with certain core sizes.

If you use a transformer that is below the wall voltage (115V transformer on 120V wall voltage) it will heat up proportionally (like 125F instead of it normally running at 90F. That is why I choose 120V and 125V transformers for new builds. But you still haven't measured the Marshall...

Thanks. Your opinion is your own just like mine. Which are valid. Btw, I produce many different formats of music. Your highs analogy makes me think of the the Fletcher Munson curves you have to balance the mix to compliment in a recording.

no, I find that this mic is another 'bad audio purchase' like a lot of midstream things shoved into musician faces and priced higher than it should be. But let us not forget the rack gear either like the 1176 or the la2a that cost way more than they are actually worth. Because there is nothing...