Resembles this "Alice" schematic? https://groupdiy.com/threads/need-help-troubleshooting-a-pimped-alice-circuit.86068/
Yep, apart from the added high-frequency attenuation parts (R14, R15, R16 & C2, in the schematic in the linked thread).
Resembles this "Alice" schematic? https://groupdiy.com/threads/need-help-troubleshooting-a-pimped-alice-circuit.86068/
...way more than any super duper capacitor. The situation reminds me of close miking of a guitar amp speaker, small changes in position result in big changes in sound.I read the position of the capsule in the grill can affect the sound noticeably?
Monday-soldering? How did this pass QA...
Ok, maybe I should try to correct the height of the new saddle later....way more than any super duper capacitor. The situation reminds me of close miking of a guitar amp speaker, small changes in position result in big changes in sound.
The white plastic parts looks different, I can post more pictures little later.
MPA-81 is a capsule from the k67 family.I have to amplify 20-25 dB more than before when using default MPA-81 capsule to get good level using Arienne K47. Now my mic preamp is at +60 dB.
Is this as expected? I checked the pad (-20dB) on the mic is not enabled.
Thanks. That explains why I need to amplify more than before. So expected more gain required but not the amount of it (maybe add a pot and trim the bias?).MPA-81 is a capsule from the k67 family.
A normal K67 capsule at the same polarization voltage can deliver 5...6dB more than a normal k47 (at 10kHz for example)
Considering that the MPA-81 can be even brighter by a few dB than a classic k67,
and the Arienne K47flat is even darker in the most sensitive sound area, and also that there are cumulative tolerances, it is possible that the perception of loudness differs by probably 10...12dB, but not by 20...25dB.
Everything must be carefully checked. The character of the sound differs so loudness can be subjective.
Does the circuit have de-emphasis?
I put the microphone in cardioid mode and turn it around while recording my voice. I don't hear any attenuation off-axis. Except the overall gain gets higher in figure 8 and omni.
I don't know. I just put the wires how they were soldered with the original capsule. The original one has two white wires coming from the center of the both sides of the capsule. The blue wire was connected to the side of the capsule.How can you be sure "B" stands for "back", and not for "backplate" ("the side of the capsule")?
I put the red wire from the center of one side of the capsule to pad on the circuit board with letter 'F'. The white wire from the center of the other side of the capsule to the pad with letter 'B', The blue wire in the picture was connected to the side of the capsule so I attached that to the side of the new capsule as well.
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