Parts Express 8 Ohm 100W Non-Inductive Dummy Load Resistor

Works as it should

I've got one of these bolted to the metal frame of my workbench and routinely use it while biasing guitar amps and measuring their RMS output. It never gets more than just very slightly warm. I just drilled and tapped two holes on the frame for the bolts and mounted it without any heatsink compound. I like that it has built-in leads, which makes for a clean installation and leaves no exposed connections to accidentally get shorted out.

Great for doing amp repair without big speaker laying around. Bought cheap patch cable and soldered onto leads so I just plug in to speaker jack when working on amps.

feel good can't wait to try them out will update

I ordered these to connect as a load on a stereo amplifier I rebuilt. I have a pair of 50 watt small aluminum finned non-inductive resistors but they got too hot when connected to the 30 watt amp I'm working on, even for short time periods.Those aluminum resistors measured a perfect 8 load but these 100 watt ones are close enough, measuring 8.1 and 8.2. These were able to absorb the heat, being rated for double the wattage they shouldThere are not mounting holes to secure them to a heat sink or any other mount.For use on a higher wattage amplifier you might consider getting larger rated ones.Update: These do have mounting slots on both ends.When testing my amplifier to determine full power these got warm but not hot. (amp measured 43 watts both channels driven).While not necessary, I put red and black heat shrink tubing on both connecting cables as a visual reminder when connecting multiple connecting cables (e.g. alligator clipped cables from amp, oscilloscope probes, and/or mini grabber clips from DMM).The wiring coming from the resistors have some stiffness to them but can easily be bent to different angles and pretty much remain in that shape.Edit: There are mounting slots on both ends of each resistor that can be used to mount to a base that I didn't initially see.The amplifier I restored measured 43 watts per channel and these dummy loads were only slightly warm.

Tested to specifications, and did its job. unit does get warm but they all do. I used it for testing guitar amp signal as a dummy load at speaker output. would buy again....