Atténuateur linéaire de Lisle Drop Box 5 W pour amplificateur à tube à tonalité spatiale Swart

It's linearly adjustable from -2dB to -15dB. Just insert the Drop Box between your amp's output and the speaker and you're ready to rock! • Suitable for 4, 8 or 16 Ohms. • In / Out Jacks. • Powder-Coated Aluminum Housing.

eBay