Clio, I'm sure you are right, but I don't understand the value of such an arrangement unless you are using an attenuator with fixed impedance values so the impedance value seen by the amp is constant. Is that not why most amplifying sections come after the attenuator?
I guess in hog heaven an attenuator with fixed impedance values coming after the preamp' amplifying section could be optimum as it would not only control volume it would lower the pre-amps noise level as seen by the amp something of much value and could also make interface with various amp input sensitivity levels more efficiently. No more problem with high gain pre-amps and high sensitivity amp inputs, a common real problem. Keeps Rothwell busy I think.
Do you know why they actually use such a configuration? Do you know why they don't?
I guess in hog heaven an attenuator with fixed impedance values coming after the preamp' amplifying section could be optimum as it would not only control volume it would lower the pre-amps noise level as seen by the amp something of much value and could also make interface with various amp input sensitivity levels more efficiently. No more problem with high gain pre-amps and high sensitivity amp inputs, a common real problem. Keeps Rothwell busy I think.
Do you know why they actually use such a configuration? Do you know why they don't?