C.BASIC INSTALLATION AND OPERATION
1.Place the MDA-300/500,on a firm level surface away fromexcessive dirt or moisture. Ideally the amplifiers '
shouldbe placedas close, to the speakersas possible. ,It is alwayspreferable torun long interconnect cables to tt~e
amplifiers and keepspeaker cable length t.o a minimu~m.. Speakercable does add an impedanceat tt~e output ot the amplifier, regardless of the cable. All KRELLamplifiers
will drive the lowest im. p.edances with ease. Whenimped- ance is added,the amphfier'spoweris litera.lly wastedin driving cable. Longspeaker cables reduce tlae maximum powerthat can be dehveredto the speakers.
2.Amplifiers dissipate muchof the powerthey consume in heat. The MDA-300/500sshould-be installed in a location that.provides unobstructedventilation. If you haveto install the units onshelves or in a cabinet, extra
ventilation m~¢be necessary_. This can be accomplished with "whisper- type fans. Consult your dealer for assis- tance.
Generally, with the front and rear of a cabinet open, 2-3 inches of clearance on each side and 8 inches of clear- ance abovethe amplifiers should provide adequate venti- lation.
The exact dimensions for the MDA-300and MDA-500 are in the Specifications Section below.
3.The MDA-300/500sshould have a dedicated 20.amp. line for each amplifier and should only be operated with the powercords supplied. Use of other powercords may damagethe amplifiers or void its warranty. Please consult KREELor your dealer BEFOREusing any devices de- signed to alter or stabilize the ACpow.erfbr.the MDA- 300/500s. If you have any questions about placementor ACpowerconditions please consult KREL-L.
4.The feet on the MDA-300/500scanbe used in several different ways. They are madefrom machinedDelrin and are supplied witla separate threaded rubber b~ottoms.The rubber bottomscan be screwedinto the feet tor protec- tion of fragile surfaces such as hardwoodfloors or furni- ture. For use on rugs, werecommendusing the fee.t with- out the rubber bottoms. MDA-300/500sfeet can also
accept the KRELL. AMDs(A, coustic MassDamper). These improvethe amplifier s sonic performancein most installations.
