Uesugi Bros preamplifier | Stereo Amplifiers & Pre-Amps
Welcome, Horatio! The things that are important in your situation are: the output impedance (Zout) of the Uesugi UBros-1 preamplifier; vs. the input impedance (Zin) of your Berning ZH-230 OTL amplifier.; You say the Zin of the ZH-230 is 50K. If the output impedance of the UBros-1 is 1K (you said input impedance!) - you won't have a problem ... as the ratio …