1: 4 transformer, made on the basis of an amorphous alloy core.
Toggle switch for gain selection.
For position I: 40dB, 30dB, 20dB.
For position II: 30dB, 20dB, 10dB.
There are three switch positions at the preamplifier input.
Position I for microphones with transformerless output (SHURE sm7b, Electro-Voice RE 20, Rode Podmic, SHURE 55SH, SHURE Beta 57A)
Position II for microphones with transformer output (SHURE sm57, SHURE sm58, AKG D3800, Sennheiser MD421 II)
The Off position does not pass the microphone signal.
THD = 0.01%
Frequency range: 20 Hz - 20 kHz
Powered by 48V phantom power
Audio examples with T-Decor preamp
1. Recording speech on a SHURE SM7B microphone. Comparison without and with the T-Decor preamplifier.
Without T-Decor preamp
With T-Decor preamp
2. Recording speech on a SHURE SM7B microphone. Comparison without and with the T-Decor preamplifier.
3. Recording a guitar on a SHURE SM7B microphone. Comparison without and with a preamplifier. Recording was made on the RME sound card.