Microphone Self-Noise Question Re: Shure KSM8

Рет қаралды 427

Күн бұрын

Someone in the comments said his KSM8 was noisy. Strange I thought, so I decided to test mine, along with some other dynamics and condensers...
Earthworks SV33
sE V7 MK
Beyerdynamic M500
Neumann KMS 105
Shure KSM8
AKG C636 Master Reference
Earthworks SR314
Beyerdynamic M88 (2023)
Shure SM58 (USA)

Пікірлер: 17

@MrNicknayme 6 ай бұрын

Thanks! I’m the one with the noisy KSM8, or hissy, rather. From you video, it’s clear that your KSM8 don’t suffer the same problem. I’ll have to investigate further since it does not make much sense that it would be from the actual mic. Maybe it’s a when pairing it with a certain preamp.. It happens with my Konnect48 soundcard, from tc electronic, using one of the build-in preamps, which should be quite decent.. Again, thanks. Your videos are always a treat.

@MrNicknayme 6 ай бұрын

@@waynebrown7065 I tried going into an old Behringer MIC100, with the KSM8 and a SM58. No noise! So maybe it’s the preamp in the K48.. I havn’t noticed it before on any other mic using these preamps.. I’ll have to go into deep doctor mode on this one.

@rhinewater 6 ай бұрын

Strctly, all dynamic mics (including ribbons) generate some amount of self noise, because temperature (even just room temperature) induces Johnson noise in all wires, including those of the mic's voice coil (or ribbon) and those of it's output transformer. In general though, (and as you've found) this noise doesn't vary much from one model of mic to another, but I've heard it claimed that some ribbons are a bit noisier in this regard because of using finer wiring in their transformers, either to achieve a higher turn ratio or just to minimise the size of the transformer.

@magoostus 6 ай бұрын

so from what I understand, the "noise floor" of a dynamic mic is essentially it's output impedance. ksm8 is 300 ohms, Beyerdynamic M88 is 200 ohms so it will have lower noise/hiss. but the REAL issue with mics of this caliber is cheap mic amps with a E.I.N (equivalent input noise) of like -125db or higher. if you want to hear everything your M88 dynamic mic can put out, you'll need a mic amp with a E.I.N of less than -129dbu (needs to be UNWEIGHTED noise spec into 150ohm. A-weighting gives a ~3db better number, pro audio is all about how you can lie on a spec sheet these days) I'd recommend a Cranborne Camden EC1 mic amp to really get that last 5db of signal-to-noise these classic mics can spit out. cloud lifters are trash

@timbeaton5045 6 ай бұрын

For what it's worth any resistive element conducting a current will generate SOME noise. Resistors do it, metal film resistors generally being lower noise than say carbon resistors. It'll turn out to be due to that Quantum thingy that rears it's ugly head whenever there's some physical property that's hard to understand.