RuudNL
Well-known member
Yes, I know, there is no schematic available for the Neumann TLM67. (As far as I know.)
But...is there someone who found out where the capacitor is located that is responsible for the HF roll-off?
Of course I could randomly add extra capacity to several capacitors and listen to the result, but maybe somebody had more or less 'analyzed' (part of) the circuit?
I hope to reduce the HF roll-off a little, to make the microphone slightly brighter, so it will be closer to a U87ai.
Who knows more?
I measured the frequency response of the electronics as it comes from the factory, with the following results:
20 Hz -8,0 dB
40 Hz -1,5 dB
63 Hz -0,5 dB
100 Hz 0 dB
250 Hz 0 dB
1 KHz 0 dB
4 KHz -1,5 dB
5 KHz -2,0 dB
6,3 KHz -3,0 dB
8 KHz -4,0 dB
10 KHz -5,0 dB
12 KHz -6,5 dB
15 KHz -8,0 dB
But...is there someone who found out where the capacitor is located that is responsible for the HF roll-off?
Of course I could randomly add extra capacity to several capacitors and listen to the result, but maybe somebody had more or less 'analyzed' (part of) the circuit?
I hope to reduce the HF roll-off a little, to make the microphone slightly brighter, so it will be closer to a U87ai.
Who knows more?
I measured the frequency response of the electronics as it comes from the factory, with the following results:
20 Hz -8,0 dB
40 Hz -1,5 dB
63 Hz -0,5 dB
100 Hz 0 dB
250 Hz 0 dB
1 KHz 0 dB
4 KHz -1,5 dB
5 KHz -2,0 dB
6,3 KHz -3,0 dB
8 KHz -4,0 dB
10 KHz -5,0 dB
12 KHz -6,5 dB
15 KHz -8,0 dB
