Neumann TLM103 small pcb on the xlr connector.

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AUDIO FREQ

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Does anyone know what this thing is? Looks like a built in pad and HPF, but no mention of it anywhere on the manual.

Mine has both of the switches in the "OFF" position.
 

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Does anyone know what this thing is? Looks like a built in pad and HPF, but no mention of it anywhere on the manual.

Mine has both of the switches in the "OFF" position.
It is an internal switch with two sections
The one visible in picture (2) is a hi-pass
(now it's set to FLAT, so it doesn't cut the bass)
Post pictures from the other sides as well, let's see what the other one is doing
 

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It is an internal switch with two sections
The one visible in picture (2) is a hi-pass
(now it's set to FLAT, so it doesn't cut the bass)
Post pictures from the other sides as well, let's see what the other one is doing
The otherside says "PREATT" which I am assuming means Pre Attenuation....a PAD perhaps?

I never knew the TLM103 had a HPF or a PAD. I don't think anyone else knows this either. Because it's so hidden inside and theres no mention of this in the manual or the "getting started" pamphlet.
 
The otherside says "PREATT" which I am assuming means Pre Attenuation....a PAD perhaps?

I never knew the TLM103 had a HPF or a PAD. I don't think anyone else knows this either. Because it's so hidden inside and theres no mention of this in the manual or the "getting started" pamphlet.
Put some pictures from below and from the other side, from other angles
I'll tell you what each one does
 
The otherside says "PREATT" which I am assuming means Pre Attenuation....a PAD perhaps?

I never knew the TLM103 had a HPF or a PAD. I don't think anyone else knows this either. Because it's so hidden inside and theres no mention of this in the manual or the "getting started" pamphlet.
Yes, it's a sensitivity attenuation Pad, but I want to see how it does it, by lowering the capsule's polarization voltage or with a capacitor in parallel on the capsule
 
It is an internal switch with two sections
The one visible in picture (2) is a hi-pass
(now it's set to FLAT, so it doesn't cut the bass)
Post pictures from the other sides as well, let's see what the other one is doing

Where's that schematic from?
 
Wait!
I found another one, it is similar but drawn differently. Only the audio part and no switches or dc/dc converter
 

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"Neumann, for example, goes one step further with its BCM-104, which hides the pad and low cut switches on the circuit board of the XLR socket; they can only be accessed by loosening a screw."

Neumann does the same with this microphone...

neumann-bcm-104-schalter-730x482.jpg
 
To be honest, I don't think a PAD and rumble filter that nobody knows about (and can only be reached with a screwdriver) are particularly user-friendly.
 
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