Hi,
I have bought a Beresford TC-7210 speaker/amp switch, described here http://www.beresford.me/downloads/TC-7210 speaker selector REV3.pdf
I've been misleaded reading this sentence : " Load Protection circuit design safeguards your amplifier when it is not connected to the speakers" so I figured out that the circuit was designed to insert a resistor between amp's hot and negative binding posts when an amp was not in use. As I'm a curious guy, I cracked the box open only to discover that a 100R/10W wirewound resistor is soldered between hot and neg of each input terminal, thus being connected in parallel to amp outputs permanently...
What would be the effects of such configuration on amp's and speaker's operation ?
I have bought a Beresford TC-7210 speaker/amp switch, described here http://www.beresford.me/downloads/TC-7210 speaker selector REV3.pdf
I've been misleaded reading this sentence : " Load Protection circuit design safeguards your amplifier when it is not connected to the speakers" so I figured out that the circuit was designed to insert a resistor between amp's hot and negative binding posts when an amp was not in use. As I'm a curious guy, I cracked the box open only to discover that a 100R/10W wirewound resistor is soldered between hot and neg of each input terminal, thus being connected in parallel to amp outputs permanently...
What would be the effects of such configuration on amp's and speaker's operation ?
Amps that have a large capacitance "output" DC blocking (AC coupling) capacitor in series with the output.
Also, some amps do not like to be driven hard without the load connected.... think of valve amplifiers.
If you know what you're doing AND you are familiar with the amps you are switching (see above)... the resistors can be removed.
Also, some amps do not like to be driven hard without the load connected.... think of valve amplifiers.
If you know what you're doing AND you are familiar with the amps you are switching (see above)... the resistors can be removed.
Thanks. Yeah, that was my intention, anyway when one of the amps isn't in use it is powered OFF.
I find this device quite expensive for what it is, a box, two multipole switches and a bunch of terminals 🙄 of course that's only my opinion...