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In the Forum: Horn-Loaded Speakers
In the Thread: Macondo’s Midbass Project – the grown up time.
Post Subject: How much more can I let it go?Posted by Romy the Cat on: 11/6/2010
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Today I spent many hours trying to remove large LF transformers from Melquiades belly and replace them with another one that would load my 6C33C a bit harder. I do idle my output tube very hard and my objective was to get to let it go slightly. The problem that I heard is that the amps had no power – I was burning all power in transformer. I want to care 0dB at 40Hz at 50W on 6C33C with no clipping – in my old configuration I was not able to do it. Also, I felt the harmonically sound from midbass horn was good but sometimes it was too controlled. I would like to have more bloom, not a lot but more. I had 11.83:1 and I replaced it with 9.3:1. It is still VERY much idea operation for 6C33C driving 15R but I very little pulled it back and got 2dB of headroom.
The result was nothing shorn of sensational – it was exactly what I was looking for. The horn got a slightly more harmonics and become warmer and more affluent. I’m much more comfortable with this sound. It still does not have this stupid bathtub sound that most of bass horns have out there and my notion to fight with midbass horn possible honk by idling out output stage still works great but it is up to the right degree and right balance. I do not know how much more I might to go into output stage loading but I think that I am approaching to very good configuration.
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