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  1. Jim
  2. YC61 Stage Keyboard
  3. Tuesday, 19 May 2020
Don't know if you are wired into the discussion at the Keyboard Corner but some are struggling to get the rotary speaker sim to sound satisfactory especially on tremolo. There's something in the mid range that's causing a shrill beating sound...it's like the horn is wobbling off axis while spinning or it's interacting with some range of frequencies from the organ...it's same issue for both sim models. Was it designed intentionally to be this way? I've used the EQ to tone it down around 2K hz but I can't get rid of it. Don't want to come across as a complainer...it's a great board and I know there are always kinks to work out when one first comes out.
Responses (3)
Blake
Yamaha
Accepted Answer Pending Moderation
Hello,

I'm not sure what "especially on tremolo" is referring to here as tremolo is an effect apart from the rotary speaker.

You can edit the Horn and Rotor Level balance (a very useful tweak), increase/decrease Background Noise, change from stereo to mono (I find running mono gets me closer to a vintage sound), adjust speed and acceleration of the rotor and use the EQ to dial it in. Additionally, tweaking the Organ sound itself, adjusting leakage and choosing a different H model is important as well.

Everyone has their own opinion about the right organ/rotary speaker system sound. I'm pretty confident you have the tools inside YC to get there.
Accepted Answer Pending Moderation
Thanks Blake...the fast speed on a Leslie is often called tremolo so that's why i referred to it as such. I've tried all the things you suggested other than running it in mono which I will try. You are 100% correct that everybody has an opinion about what Leslie sims sound more "authentic"...of course the Neo Vent is usually cited as the gold standard. I am used to the Nord sim which is very sanitized where the sim in the YC is definitely earthier. I've grown more used to it over the past few days...it's just when there are sympathetic half and double beats to that of the fast speed of the horn and they interact with certain mid frequencies that I get a little uncomfortable with it. Try it with some headphones on and I'm sure you'll hear it clearly.

Anyway, having a great time with all the other clever features Yamaha has put in the YC61. I've already been able to dial up some interesting Live Sets both functionally and sonically. I see there have been regular OS updates that have added voices to the CP series. Not to rush it...but I like forward to similar updates for the YC...especially tapping what seems like a lot of untapped potential for the FM engine.
Accepted Answer Pending Moderation
Hi, I have a B with a 122 Lesile, it's a older setup,but its "The One".. Heres some downloaded info on TRUE Leslie 122 Speeds..On both settings, the treble horn rotates slightly faster than the bass woofer; about 50 revolutions per minute (rpm) for "chorale" and 400 rpm for "tremolo", compared to the woofer's 40 rpm and 340 rpm respectively.
You also have to take in consideration of what amp your using,Each amp sounds different so ,That is when you use the EQ on the right of your YC-61.. I fine tune the accel and decel of the horn and rotor..Never make them the same because a real Leslie's belts slip speeding up and down.. I'm still comparing My YC-61 to My Real Hammond setup.. Enjoy!!!
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