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What Causes Idle Amp Noise/Hiss | The Gear Page
https://www.thegearpage.net/board/index.php?threads/what-causes-idle-amp-noise-hiss.820202/#:~:text=Hiss%20in%20an%20amp%2C%20be%20it%20tube%20or,we%20hear%20hiss%20from%20the%20speakers.%20Basic%20electronics.
amplifier - How to filter hiss from amp to speakers ...
https://sound.stackexchange.com/questions/42801/how-to-filter-hiss-from-amp-to-speakers
If the amp is the source of the hiss there is nothing you can do. Some computer headphone jacks have weird noises going through them when devices are connected. But if it’s not that and the hiss is before the amp you can try this: Make sure that the signal going into the amp is balanced and at line level or at least shielded.
How to Eliminate Hiss From Audio Amplifier | Our Pastimes
https://ourpastimes.com/how-to-eliminate-hiss-from-audio-amplifier-12602189.html
Plug your amplifier into an outlet and turn it on without plugging in any microphones, instruments or pedals. If the hissing is gone, your problem lies with something you connected to the amplifier. If it persists, you may have problems with your amplifier or outlet. Move the amplifier to an outlet that is part of a different circuit.
Hiss/white noise in an amplifier
https://el34world.com/Forum/index.php?topic=25525.0
The hiss is present as soon as tubes start conducting, and is there with volume and reverb down to zero. It does not vary as volume is turned up; it's a steady soft white noise at a constant level. No pops or flickers, just steady. I think I …
What Causes Idle Amp Noise/Hiss | The Gear Page
https://www.thegearpage.net/board/index.php?threads/what-causes-idle-amp-noise-hiss.820202/
Hiss in an amp, be it tube or SS originates in thermal noise that is inherent in the amp components. The gain stages in the amp amplify the noise to audible levels and we hear hiss from the speakers. Basic electronics. As donnyjaguar said, it is aggravated by cheap components. http://en.wikipedia.org/wiki/Johnson–Nyquist_noise oasis02 Member
Background hiss using power amp - 2-Channel Home Audio ...
https://community.klipsch.com/index.php?/topic/109167-background-hiss-using-power-amp/
The receiver and other power amp are much quieter; you need to get close up to the tweeter to hear any hiss or hum. The circuit the amp is plugged into is brand new, installed for the HT, and the outlet has no more than about 20 feet of wire between it and the breaker.
Speaker Hiss with volume at 0 after amp install ...
https://www.diymobileaudio.com/threads/speaker-hiss-with-volume-at-0-after-amp-install.106492/
Assuming the HU has a zero-bit mute circuit, turning it down all the way and the hiss still being there tells me that it is simply the amp's noise floor. Like Aaron said, muting plugs in the input of the amp will let you know for sure. Solution: Don't listen to music with the volume at 0. D digitaldav Registered Joined Dec 8, 2010 11 Posts
A Discussion About Idle Hiss – Upscale Audio
https://upscaleaudio.com/pages/idle-hiss
1. Even if you turn the volume all the way down, and there is still some remaining hiss, it means nothing. Once the music is playing, it is not audible. That is called the signal-to-noise ratio.
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