DUMILOAD (Dummy Mechanical Impedance LOAD) devices have been used to test transducers for many years. In concept the DUMILOAD consists of another specialized piezoelectric transducer mechanically coupled to the transducer to be tested. By varying the electrical impedance placed across the DUMILOAD’s electrical terminals, varying mechanical loads can be presented to the transducer being tested. Drawbacks to this approach have included the need for a cumbersome mechanical coupling device and the limited operating frequency band of the DUMILOAD. This paper describes some of the consideration involved in designing and constructing a DUMILOAD capable of operating at a power level of 1000 W in the frequency band from 3000 to 4000 Hz. Details of a ’’quick connect/disconnect’’ mechanical coupling device are also described.Subject Classification: [43]85.40;[43]30.85