Both preamp and power amp have volume controls. Preferred method to control volume levels?
My power amp (Whammerdyne DGA-1, 2A3 tube-based) has a volume control (passive) as well as my tubed preamp (active). I’ve been running the amp with volume control all the way open and controlling the volume level with the preamp. However, I could instead run the volume control on my preamp full open and control the volume level with the amp. Does one way or the other cause more strain on the power amp tubes to achieve matching volume levels (SPLs)?
The designer and builder of the Whammerdyne line is a friend of mine and I forwarded your question to him. See his answer below: - Always run the volume control full open on the Whamm amp and use the volume on the pre-amp as the master volume control. This is the best impedance match as the set up. It’s the correct load that way with volume control on the amp full open. |
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