Dummy speaker load

Log Out | Topics | Search Moderators | Edit Profile

Author Message   Tim Connolly Posted on Friday, December 23, 2005 - 12:14 pm:    Hi, What do you folks use for a speaker dummy load when bench testing an amp? Or do you have a dedicated test speaker setup?   Steve Kennedy (admin) Username: admin Registered: 03-2002 Posted on Friday, December 23, 2005 - 01:45 pm:    I use a dual 100 watt 8-ohm load box I bought from MCM Electronics (Tenma brand) a few years ago. They are on close-out for $45 now. Here is the link: Tenma Audio Load It is essentially a metal cabinet with cooling holes and two sets of binding posts (non-standard 1 inch spaced unfortunately) on the front panel. The resistors are 8-ohm wirewound 100 watt ceramic beasts that can be used as a 100 watt stereo 8-ohm load or your can create a 200 watt 4-ohm load or a 100 watt 16 ohm load by connecting the binding posts in parallel or series. Since the resistors are spiral wound you will get some inductance (which is a little more like a loudspeaker coil) but this is an essentially non-inductive test load. Steve (Message edited by admin on December 23, 2005)   Tim Connolly Posted on Monday, January 02, 2006 - 05:28 pm:    Thanks Steve! Just ordered one!