salut,
à propos de l'impédance (ça provient du manuel de l'ampli)
Output Selector
Matches the amplifier’s output to the load impedance. With all-valve amplifiers it is imperative that the amp is
connected to a load whilst in operation and that the impedance selected on the amp matches the total
impedance of the speaker cabinet(s) being used. For example, if the amp is running into a single 16 Ohm cab,
the amp should accordingly be set to 16 Ohms. If running into two 16 Ohm cabs, the amp should be set to 8 Ohms. If
running into two 8 Ohm cabs, the amp should be set to 4 Ohms. Failure to comply with these points will result in
damage to the amplifier.
Your amp should be completely powered down before the selector is turned.
La puissance de 100w, tu peux en principe la diviser par 2 en enlevant 2 lampes de puissance (les 2 du milieux ou les 2 extérieures).
==> à confirmer par la lecture des forums existants (audiofanzine, harmony central...)