TVC Linestage (BD-Design)

by GC, Saturday, March 19, 2005, 21:10 (6976 days ago) @ GC

Hi Brian,

With a normal designed DC coupled system the DC voltage will be very low and therefore not much of a problem. The high total impedance with some DC mV will only give very little current (nA).

Don't connect a tube pre-amplifer without output capacitor, then it won't work too well I guess...

Also, the output impedance of the Twindacplus! is 2.5k ohm and the TX-102
suggests a number closer to 60 ohms. Has anyone noticed any bass roll-off
due to this?

The load on the other end dictates the load on the input. The higher the input impedance of your amplifier the higher maximal output impedance is needed on the input of the TVC. A tube amp with minimal 50k input (better would be 100k) will not be any problem for the 2.5k ohm.

Ciao,

Bert

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