Lowell 25LVC-RM Rackmount Autoformer Attenuator, 25W

The 25LVC-RM is a mono autoformer attenuator with a rotary dial for a 25V/70V speaker line, rated at 25 watts with 3dB-per-step attenuation across two 6dB steps before off, built for rackmount or custom installation.

It includes an adhesive dial scale with a pocket for a paper label to identify the control, and uses the same phoenix-style plug-in screw termination as the wall-mount 25LVC.