CleanBOX II – Hum Eliminator


“Hum” in an audio system is often caused by loop effects which act like antennas. These loops can easily pick up a 60 Hz (or higher harmonics) hum transmitted by electrical wiring. Typically, these loops are connected via grounds, more commonly called “ground loops”. The safest way to eliminate unwanted noise is with the CleanBOX II. Some examples of Ground Loops:

CleanBOX II Applications:


Frequency Response:      10Hz – 50kHz, +/- .5dB @ +4dBu

THD:                                .01% Typical @ 1kHz, +18dBu, <.05% @ 100Hz, +24 dBu

Insertion Loss:                 .4dB @ 100k Ohm Load, 5.5dB @ 600 Ohm Load

Connections:                   1/4” TRS balanced/unbalanced jacks

Power:                              Passive

Dimensions:                     4.5 x 2.875 x 1.5 inches (114mm x 73mm x 38mm)

Weight:                            .9 lbs (.4kg)