Hello all!
I recently interested in buying a tube preamp but the output impedance is very high, it has 5000 ohm.
Unfortunately, the load impedance of my system is around 10K as the input impedance of the active subwoofer and power amplifier is 12K and 100K respectively.
Would it be any problems regarding impedance matching issue?
Thanks!!
I recently interested in buying a tube preamp but the output impedance is very high, it has 5000 ohm.
Unfortunately, the load impedance of my system is around 10K as the input impedance of the active subwoofer and power amplifier is 12K and 100K respectively.
Would it be any problems regarding impedance matching issue?
Thanks!!
If the tube preamplifier output can deliver enough current without distorting excessively, then you just lose about 3.5 dB of gain. You also have to make sure the cables between the preamplifier and the rest are not excessively long, otherwise the tube preamplifier output impedance in parallel with the input impedances and the cable capacitance act as a first-order low-pass filter, reducing treble.
I can run this particular preampifier in another system that has no subwoofer setup and the load impedance is around 50K, and I guess it should be fine.