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What does RE-ACT mean in the Torpedo Reload?

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Some attenuators are resistive, others are reactive, and most of them are passive.

Passive means that the attenuator’s electronics does not require a power supply.

Resistive means that the power out of your amplifier is tamed by the presence of one or severalresistors on the signal path. The load impedance plays a huge role on the sound, and a resistive attenuator will make the tone somewhat darker, with losses in the high and low frequencies.

Reactive means that reactive elements (transformers, coils and/or capacitors) are used instead of mere resistors. With this technology, the damping factor will decrease with the level of attenuation. Most of the time, a reactive attenuator means losses in character and fidelity, "muddy" sound and other unwanted effects.

Another downside of passive resistive/reactive attenuator is the way the listening level is controlled, usually by some stepped potentiometer, which does not allow for precise volume setting, and limits you to a set of fixed attenuations.

RE-ACTTM stands for "Reactive-Active Attenuator", which means it uses a reactive load and active overall schematics. In effect, the RE-ACTTM can be described as the conjunction of two elements :

  • a reactive loadbox inherited from the critically acclaimed Torpedo Live series, followed by
  • an ultra-low-distorsion, wideband, low-noise solid-state amplifier based on a widely used HiFi architecture.
The role of this system is to present a speaker-like impedance to your amplifier, get rid of the power, then re-amplify it to the desired volume. This design offers a number of advantages over resistive/passive ones:
  • the amp is always connected to a fixed impedance, which is as close as possible to a real speaker impedance ;
  • as the impedance does not change with the attenuation, the tone of your amp stays the same ;
  • the volume you hear in the room can be set continuously, you get REAL master-volume control (SPEAKER parameter), after your amplifier’s master volume ;
  • the speaker-output impedance of your amplifier is independent from the speaker impedance of the actual speaker cabinet you plug on the Torpedo Reload. This opens up a great many fun possibilities of cabinet mixing.
 

 

 

 
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Article details
Article ID: 164
Category: Torpedo Reload
Date added: 2013-12-12 12:37:15
Views: 742
Rating (Votes): Article rated 3.9/5.0 (7)

 
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