8 Ohm 100W Non-Inductive Dummy Load Resistor

8 Ohm 100W Non-Inductive Dummy Load Resistor

Overview
Non-inductive dummy load resistors are a must for bench testing amplifiers. Also useful for testing loudspeakers and other audio circuits requiring an 8 ohm load.
Part # 
019-020
Weight: 0.7392 lbs.  
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Product Details

8 Ohm 100W Non-Inductive Dummy Load Resistor
Non-inductive dummy load resistors are a must for bench testing amplifiers. Also useful for testing loudspeakers and other audio circuits requiring an 8 ohm load. 5% tolerance. Dimensions: 6-1/2" L x 1-9/16" W x 3/4" H; Inner width of the screw holes: 5.4 mm; Inside edge to inside edge measurement between the two screw holes: ~144 mm.


8 Ohm 100W Non-Inductive Dummy Load Resistor
  • BrandParts Express
  • Part Number019-020
  • UPC844632011993
  • Product CategoryDummy Load Resistors
  • Unit of MeasureEA
  • Product Rating
    (15 Reviews)
  • Weight0.7392 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Reviews

8 Ohm 100W Non-Inductive Dummy Load Resistor
8 Ohm 100W Non-Inductive Dummy Load Resistor is rated 4.8 out of 5 by 15.
Rated 5 out of 5 by from Great for repairsI have used the dummy loads whilst repairing and testing a 25w per channel amplifier. Even at full load for the amp (25w), the loads didn't even get warm.Highly recommended for using during repairs to save possible damage to speakers if the repair goes wrong.
Date published: 2014-09-30
Rated 5 out of 5 by from GreatAllowed me to crack my 60 watt tube amp. I might go with a 200w load next time though because this thing started getting hot, but thats what it's supposed to do.
Date published: 2013-02-18
Rated 5 out of 5 by from Can use with Guitar ampsI have used this with a standard amplifier to run in mono and with guitar amps. Functions beautifully. With guitar amps, you can put a DI in between this and the power amp and have your own silent recording rig.Very useful, great value, and doesn't get too hot. Only wish it came pre-wired with a jack or was in a housing.
Date published: 2012-03-12
Rated 5 out of 5 by from These are perfect for amp diagnosis and repair!Using these to load the output for testing in the onlyway to go!
Date published: 2009-02-19
Rated 4 out of 5 by from Good for bench testing more than just amplifiersI haven't used this to test my amplifiers yet, but it has worked well for testing a low power power supply - a +/-12VDC power supply. Hooking both outputs in series across the resistor dissipates 72W of continuous power (so watch out, it gets hot quickly!) but it gives a good idea of the power supply droop and ripple levels.
Date published: 2008-10-23
Rated 5 out of 5 by from Eceleent test loadPerfect for testing amplifier in our repair shop.
Date published: 2008-09-12

Product Q&A

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8 Ohm 100W Non-Inductive Dummy Load Resistor

just bought one.. can anyone please tell me how to hook it up? which wire do i attach ground to? just confused since theyre both the same, i know i have to somehow attach it to a ts cable. Please help!!!!

Asked by: joeshmoe08
Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-11-20

This is a similar question to someone else's but I want to be clear.... Can I use this WITH an existing speaker in a 1x12 combo amp simply to reduce wattage to the speaker? I would like to halve the wattage to the existing speaker while playing.

Asked by: Ed A
This will technically lower the output of the speaker, but simply turning the volume down on the amp will do the same thing and not waist power as heat through the resistor.
Answered by: MattP
Date published: 2014-11-11

is this a cheaper alternative to a THD Power soak? I want to be able to run a 100 watt tube head without bringing a cabinet with me and go out form the direct out to a PA mixer I'm assuming I will need to solder this to a 1/4' jack as well?

Asked by: peachsnapple
In most cases the 8 ohm resistor will drop the volume by 3 db. The THD drops volume by 4db or more all the way to infinity. IMO, not really comparable let alone a cheaper alternative. As far as running the output of an amp directly into a mixer, you need more than a single 8 ohm resistor to get the voltage down to what the mixer wants, as well as getting the input and output impedance so that both the amp and mixer are happy campers.
Answered by: fastrr1
Date published: 2014-11-18

Can I run this with an 8 ohm speaker to make a 16 ohm load on a tube guitar amp?

Asked by: jd2classic
Unfortunately impedance does not work this way. You will have to use a single 16 ohm speaker or two 8 ohm speakers wire in series.
Answered by: MattP
Date published: 2014-08-11

Are these safe to use with solid state amps as well as tube?

Asked by: LusciousClay
Yes.
Answered by: MattP
Date published: 2014-02-26

2 dummy loads for stereo bench testing?

Do you need 1 dummy load for each channel when testing a stereo signal or can 1 load be hooked up to both channels at the same time?
Asked by: MeTarzan
You need two to test L & R at the same time. Connecting the two outputs together will cause either a failure or activate the protection circuitry [if your amplifier has one] and shut down.
Answered by: Joe from San Francisco
Date published: 2013-11-12

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