Section 2: Operation; Installation; Front Panel Features; Rear Panel Features - Wohler AMP1A User Manual
1u stereo audio speaker monitors with two or optional four analog audio inputs, stereo analog outputs, and optional dual 10-segment level meters and phase indication amp1a series
Amp2-am series 2u analog monitor speaker unit with two vu or ppm mechanical level meters, two balanced and two unbalanced inputs, two loop-thru outputs, and phase indication (20 pages)