Using the Torpedo Captor X with a cabinet

When you use the Captor X, here are the different impedance behaviour in regards to the use of the attenuator:

1. VOLUME LEVEL on FULL position: the attenuator is bypassed. The output acts as a THROUGH output. The impedance shown to your amp is the cabinet's impedance. You are advised to use the corresponding output of your amp, in this case. ( 4 Ohms output for a 4 Ohms cabinet, 8 Ohms output for an 8 Ohms cabinet,16 Ohms output for a 16 Ohms cabinet)

2. VOLUME LEVEL on LOW or halfway position: the attenuator is in use. The impedance shown to the amp is the Captor X's one, which is 8 or 16 ohms depending on the version you have. Use the matching output of your amp (8 or 16). The impedance of the cabinet connected to the speaker output does not have any impact on the impedance seen by the amp. You can keep the cabinet connected at all times to the Captor X when the attenuator is in use.

You can keep the cabinet connected at all times to the Captor X. If the VOLUME LEVEL is on FULL, the amp and the Captor X are matched but the cabinet has a different impedance than the Captor X you will have an impedance mismatch.

This article will help you understand more about impedance mismatch and what you need to be careful about:
https://support.two-notes.com/knowledgebase.php?article=321

WARNING: Be sure to check which amp's output is used if you have a Captor X 16 Ohms and a 4 Ohms cabinet. In the case where the VOLUME LEVEL is on FULL, the impedance mismatch is too high (4 vs 16) if the 16 Ohms output is used.