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Topic: Sesh 400 pedal into Katana 50 (or other) |
Dan Beller-McKenna
From:
Durham, New Hampshire, USA
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Posted 5 Feb 2025 6:02 am |
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Anybody using the Sesh 400 into the "power amp in" jack of a Katana? Just tried mine for the first time in my 50 this morning and, while improving the sound of the Katana power amp/speaker noticeably, it also makes the amp sound HUGE! Even with the wattage cut to 25, I couldn't turn the sensitivity on the Sesh pedal above 2 without rattling the walls. I'm afraid that if I ran the Katana at 50w and turned the pedal sensitivity above 3 it would blow out the poor little neo speaker.
I have the K50 strictly as a lightweight bedroom and grab-n-go rehearsal amp. I'm planning on using the Sesh 400 to make it more effective in the latter situations. Interested in anyone else's experience with this combimnation. |
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Fred Treece
From:
California, USA
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Posted 5 Feb 2025 8:18 am
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The Master volume on the Katana should still be controlling overall volume, no matter what power setting.
There is a very basic Power Amp EQ with an output level control in Tone Studio/Settings.
Others have posted about the Sesh 400 Sensitivity control, and keeping it in the range of which you speak. I believe it is the same as input gain, and apparently there is a lot of juice in there. |
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Ron Pruter
From:
Arizona, USA
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Posted 9 Feb 2025 7:11 pm
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Fred. My understanding is, it's the same as Master volume???? but I see what you mean when you put it first. RP
_________________
Emmons SKH Le Grande, '73 Fender P/J bass, Tick tack bass, Regal high strung, USA Nashville 112. |
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Fred Treece
From:
California, USA
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Posted 9 Feb 2025 8:21 pm
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Lynn Kasdorf’s response makes the most sense to me:
https://bb.steelguitarforum.com/viewtopic.php?p=3234541&sid=c440be06fa22d261f97dcba01a91b530
Master on the Sesh is exactly what it says it is - a master volume for the Sesh. That would make “Sensitivity” short for Input Sensitivity, which usually means the same thing as input gain.
Regardless of where those controls on the Sesh pedals are set (unless they’re set to zero), the ultimate volume control is the Master on the Katana, or whatever power amp/powered speaker system the Sesh is being routed to.
Another important factor in the preamp>power amp equation is determining the clipping point for the power amp. For example, if the Katana sounds unpleasantly distorted no matter how low the Master (on the Katana) is set, then the power amp is receiving too much input from the preamp. So turn down the gain (sensitivity on the Sesh). If that results in a clean signal but wimpy tone, try turning the Sesh Sensitivity back up a little and turn the Sesh Master down. That should keep the Katana power amp from clipping, but still result in a robust tone that stays the same at any volume level on the Katana. Once you find that groovy spot on the Sesh, leave it there. It might behave differently with other power amps, but that is another story. |
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