If one of the components is tubed, you can see if the tube is bad and perhaps make it quieter. Gain and sensitivity is how touchy the gas pedal is on the car, power is how much horsepower the car has. Please note: Idle hiss is a question of gain and sensitivity.
#2: The impedance between components is a separate topic, and they are not supposed to "match". #1: Noise has nothing to do with impedance. Say whaaaaaaaat? Tell him to go back and go to school. I know of one dealer who told a customer the noise was because of an impedance mismatch between the preamp and amp. Buy your gear from a dealer that will make sure nothing is wrong, but that dealer better have understanding of the questions. If you hear a noise, how loud is the volume? The important thing is that the music signal far overrides the noise. So you hear hiss when you put your ear up to the tweeter? Then don’t do that! The best way to tell the salesman "I don't know anything" is by putting your ear to a tweeter in a store and then complain that the gear is noisy. The dealer you buy your gear from should keep you on the sunny side of the street. And with the volume all the way down, the 101dB speaker will typically have more idle hiss. Using the same amp and preamp, and the volume set to the same spot, an 89dB efficient speaker will require more gain than a speaker rated at 101dB. When could this be a problem? Usually if you are in a teeny room and sit close to the speaker, or if you have high sensitivity speakers. Depending on the gain in your preamp this could mean less movement on the volume knob.
So the 0.8 volt model is more sensitive and takes less to get it going.
#Speaker hiss full#
Others may require 2, 3, or even 4 volts to reach full volume. Some amps require only 0.8 volts to bring them to their full power. So when does this come into play? When you pick your power amp, the specification we look at there is input sensitivity. Other preamps like the Audible Illusions Modulus 3A can have up to 30dB of gain. For instance, the PrimaLuna DiaLogue Premium has only 10dB of gain. This type of noise can be caused by a few different factors. You can add an amp with less power and have the idle noise go up. What counts is what is happening when the music plays. I remember back working at Rogersound Labs over 20 years ago, when we saw people do this we would laugh. I notice this when playing my CDs (haven't checked the radio yet). When I crank it up, the hissing gets drowned out by the music. The hissing noise is pretty much constant, so I only hear it at low volume. Well, putting your ear up to the tweeter to listen for noise THAT WILL ALWAYS BE THERE and thinking it's a problem is even sillier! I'm noticing a bit of hissing coming out of my speakers. I will personally drive or fly out there and turn you over my knee and give you a spankin'. If you walk up and put your ear to the tweeter to look for hiss. maybe it's time to smoke a fattie one more time.Ģ. Imagine being 18 yrs old and smoking a joint and acting like this. don't ruin one of the few things that bring you joy by nutty-ing up. you will get freaked and won't quit until you find a situation where it IS audible, just to prove there is a problem. If you start to chase your own tail like a crazy dog. That is called the signal-to-noise ratio. Once the music is playing, it is not audible. Even if you turn the volume all the way down, and there is still some remaining hiss, it means nothing. Before going forward, you have to promise to remember these two major points:ġ. This is a question that will lead to people doing dumb things and getting freaked out. Is this because they're codecs and modules?Īnyway there is no snd_hda_codec_realtek showing so im guessing this might have been the cause of the hissing.I have changed a component and idle hiss went up. Interestingly, even with the other 3 codecs blacklisted snd_hda_codec_generic and snd_hda_codec_hdmi still show up in lsmod. First I unblacklisted snd_hda_intel and the hissing was still gone but the sound was back to normal! So next step was to start unblacklisting the various things 1 by 1. I then rebooted and the hissing sound was gone but so was all sound (guessing this is because of blacklisting snd_hda_intel). I also blacklisted snd_hda_intel just in case that was the culprit. I have no idea if this is normal but I thought maybe they have something to do with it so I blacklisted them all in /etc/modprobe.d/nf (by adding blacklist snd_hda_codec_xxxx at the end of the file). I ran lsmod in a Terminal and saw that there were 3 different codecs in use: I think I may have found a solution so I'm answering my own question! It might help someone else if they're struggling anyway.
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