Looking to DIY some decent quality stepped att's to correct level diffrences in a Bi-amp situation using tube amps
Rogue 120 and Antique hurricanes.
Hurricanes show a 100K ohm input impedance in the Manual; Should i oder that value of controls??
Rogue 120 and Antique hurricanes.
Hurricanes show a 100K ohm input impedance in the Manual; Should i oder that value of controls??
Depends mainly on the source that is driving the attenuator. If solid state, 10k is ok.
If tube, you may need a much higher value, depending on the driving circuit.
The amplifier's input impedance is not the main issue, unless it is relatively low.
If tube, you may need a much higher value, depending on the driving circuit.
The amplifier's input impedance is not the main issue, unless it is relatively low.
Last edited:
They rate their preamp at +/- 1dB down to 2Hz into a 50k load.
So I would use a 50k pot, but no lower. A 100k pot would work
if a 50k is not available, but a 50k is better.
Such high impedance pots should be mounted inside the amplifier,
or at least in a shielded enclosure near it with short cables,
to minimize HF losses.
So I would use a 50k pot, but no lower. A 100k pot would work
if a 50k is not available, but a 50k is better.
Such high impedance pots should be mounted inside the amplifier,
or at least in a shielded enclosure near it with short cables,
to minimize HF losses.
Last edited: