Is A Preamp Noise Floor Linear

The thing that matters is the signal to noise ratio.

Is a preamp noise floor linear.

Any suggestions as to a good phono cable i ve alloted around 400. Low noise floor preamp. If very quiet then the noise floor could be heard. Noise floor extension.

You can get a lot more out of the preamps you already have by being diligent about keeping the gain in the sweet spot with the input gain just low enough to keep the signal from clipping that will provide you with the cleanest and clearest signal you can get from your preamp keeping your signal above the noise floor. If the receiver has a dynamic range of say 90db 1 000 000 000 to 1 with a noise floor of minus 110dbm then the maximum signal it can handle will be 20dbm. You get a very high signal to noise ratio. In noise factor and linear gain units the formula is.

A lot depends on how quiet the environment is. The noise floor turns up with the desired signal. These matching losses must be accounted for in the cascade noise math to compute the correct noise figure of the dut again a preamp into the receiver may be necessary to have the correct noise power levels. Adding a pre amp that drops the noise floor by say 10db to 120dbm will also drop the ceiling by 10db to 30dbm assuming sufficient dynamic range of the pre amp.

In this case from the last post by shoff the noise is apparently not affected by the volume control. The other thing is every mic and every preamp has a noise floor. What is noise floor. But you need to adjust the gain staging to maximimise the signal to noise ratio.

Mxp i am using an unshielded cable from speltz anti cables 1 mtr. Abnalogaudio the noise is definetly louder than when i used the phono section of the main preamp. Its normal to have a noise floor on any preamp. Very likey there is nothing wrong with your preamp.

Hello everyone first post here after a long time reading. I had the cable when i received the phono preamp so that s what i used. I m a sound mixer and editor movies and tv and have my own studio paris france. For the 2 stages case.

It s often the solution to your basic gain staging issues. That noise is usually best detected when there is no other audio signal going along with it. So it can be the noise of the line stage and that of the amplifier. Nobody expects no noise there is always noise.

Phono turntable preamp mini electronic audio stereo phonograph preamplifier with rca input rca trs output low noise operation with 12 volt dc adapter pp400 3 0 out of 5 stars 1 15 99 15.