Back in the days of tube audio gear in radio stations, almost everything was 600 ohm transformer coupled (inputs and outputs). Some professional broadcast solid state gear was even transformer coupled (not sure why, except for maybe RFI rejection). As you can see in my link above (600 ohm output transformer termination), there is still sometimes on-going discussion on the subject, as some highly sought after vintage pro processing gear has 600 ohm transformer outputs. AKG even made a K240 headphone that was rated at 600 ohms. I’ll have to dig back into some of my old broadcast magazines to refresh my memory on the subject, since it rarely concerns me anymore.
Amp preamp impedance matching...can anyone explain?
Hi, I currently have vintage tube gear, but want to try a SS amp with my tube preamp, and may try a SS preamp with my tube amps. I have noted there is an impedance matching issue, but do not understand it. Can anybody provide a quick summary?
Thanks
Jim
Thanks
Jim
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- 41 posts total
- 41 posts total