Recycled Sound 6/12 Attenuator - 16 Ohms. Why 6/12? Engage 1 switch and remove -6db of power. Engage the 2nd switch and your -12db. That equals a volume reduction of 60%.
The Recycled Sound attenuator is a passive, resistive load with compensated impedance and EQ, which maintains the designated impedance, EQ'd such that no degradation in tone is noted, even at full -12db attenuation.
Use it as a Master Volume, use it to save your hearing at practice, find your tube tone without getting thrown out of the club, use it to prevent blowing up your vintage or low power speakers.
Use TWO in series and achieve -24db attenuation - bedroom level! Example - Your 50 watt amp - engage one switch - it's now a 12 watt amp! Engage the second switch and it's now 3 watts!
With TWO Power Plugs - engage the 3rd switch = ¾ watt - 4th switch = less than ¼ watt.