Gentlemen, what Ralph appears to be referring to regarding the relation between feedback and output impedance was discussed extensively in this thread, beginning with the post that the link opens at.
Best regards,
-- Al
Best regards,
-- Al
transformers/output impedance
Hello,
I'm confused, or is it a question accepted that the use of output transformers for tube amplifiers, aims to lower the output impedance of the same, to match with the impedance of the speakers? However, how can a passive device (transformer) influence the output impedance of an active amplifier unit? I say that the output impedance is a characteristic of the amplifying machine, and transformers only optimize the ratio of its ability to deliver current, with the current requirements of the speaker, easily translated by its impedance
I'm confused, or is it a question accepted that the use of output transformers for tube amplifiers, aims to lower the output impedance of the same, to match with the impedance of the speakers? However, how can a passive device (transformer) influence the output impedance of an active amplifier unit? I say that the output impedance is a characteristic of the amplifying machine, and transformers only optimize the ratio of its ability to deliver current, with the current requirements of the speaker, easily translated by its impedance