Этот вопрос меня заинтересовал, и я даже не поленился откопал инструкцию к данному усилителю:
http://www.marshallamps.com/wp-content/uploads/2013/08/DSL15C-H-hbk-ENG1.pdfТам написано следующее:
LOUDSPEAKER OUTPUTS –––––––––––––––––––––––
IMPORTANT OPERATIONAL NOTE: With all-valve
amplifiers it is imperative that the amp is connected
to a load whilst in operation and that the impedance
output on the amp matches the total impedance of the
speaker cabinet being used. Failure to comply with
these points will result in damage to the amplifier.
The DSL15H features three outputs, a dedicated
16Ω output and two 8Ω outputs.
The DSL15H must not be run into an impedance of
less than 8Ω.
1. 16Ω SPEAKER OUTPUT
For the connection of a 16Ω speaker cabinet. It
should be noted that when this Speaker Output is
in use the remaining Speaker Outputs (2 & 3), are
not operational.
2. & 3. 8Ω SPEAKER OUTPUTS
For use when the total impedance of the speaker
cabinet(s) being used is 8Ω. That is, when using
either a single 8Ω cab or two 16Ω cabs.
Если каб имеет 2 половинки по 4 Ом, то походу его использовать нельзя - в инструкции написано, что сопротивление должно быть не меньше 8 Ом.
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