Shopping Cart

Your cart is empty.

Your cart is empty.

Parts Express Speaker L-Pad Attenuator 100W Mono 1' Shaft 8 Ohm

Free shipping on orders over $29.99

$25.55

$ 11 .99 $11.99

In Stock


L-pads adjust the relative volume of drivers connected to them by placing added resistance in series and parallel, keeping impedance a constant 8 ohm load. This L-pad is rated at 100 watts RMS, is designed to be used with 8 ohm loads, features a 3/8" shaft length, and comes with mounting hardware.


Sammy Bunton
Reviewed in the United States on August 4, 2018
I am using this as an attenuator on a little 5 watt champ clone and it does a great job. It doesn't come close to getting hot, or warm for that matter. Easy to install, there is a generic drawing on the side of the box or you can look it up to figure it out but you shouldn't have to. Very simple. I can now crank the amp late at night and not have to worry about waking up the baby and getting killed by my wife, ha ha, but seriously. A great, cheap way to attenuate an amp, I wouldn't go over 50 watts just to be safe.
Johnny Jett
Reviewed in the United States on July 1, 2018
Item was damaged. Prongs were bent.
Mars Trader
Reviewed in the United States on November 9, 2018
I work in a haunted house and the owner has piped background music into several of the rooms. The system he's got has no facility for adjusting sound levels per room. I bought this on my own , put it in a outlet box and mounted it behind the speaker. Now I am not blasted and the speaker is no longer buzzing on the bass notes. I recommend a 2-gang, shallow knock-out box - blue plastic, with banana jacks or a terminal block on one side. I used a blank metal front end plate, drilled a hole in the center for the L-Pad and let it be the heat sink, painted it all black and you can't notice it up on the wall.
Frank Von Furstenrecht
Reviewed in the United States on May 3, 2015
Having purchased a sound system for my TV, I was not satisfied with the Bluetooth sub woofer, even at its lowest setting it overpowered the system. It made it very boomy, bass way too much. I decided to attenuate the woofer output to balance it out and found that there was no way to do it without major surgery on the component board(s) of this system. So I added an L-pad between the amplifier output and the speaker.I can now balance the system to what it should have been to begin with. I have full control over the output of the subwoofer that even at its lowest setting was too much. After installing the L-pad and setting it to obtain a balanced system it sounds wonderful.Glad I was able to find a source for an L-pad, especially one that is well constructed and appears to be of high quality.
Chris DIYer
Reviewed in the United States on March 26, 2014
These worked pretty good for a while and then they got staticy, and then died. Not really impressed with them and they seem to cause more problems then their worth.
John Paul Griffith
Reviewed in the United States on December 4, 2014
I bought these in a rebuild of some very old Acoustic Research speakers. Everything went so well, I was so happy with what I had that I never went on to install these...........
Johnny
Reviewed in the United States on July 25, 2013
I was goofing around the 'net looking for a cheap and simple solution to attenuate my 30W tube amp.This looked like just the ticket. And it is, HOWEVER you must know some crucial information.1: These things aren't designed to attenuate more than 3 or so dB. Their purpose is to balance the volume of one speaker element in relation to the rest of a set. At an attenuation of -3dB, feeding 100W RMS into a 100W L-Pad it will have to handle 50W RMS. 2: Guitar amps deliver the OPPOSITE of RMS. The power of heavily distorted sound is roughly twice as powerful. In other words, your 30W guitar amp actually delivers 60W with all the distortion or fuzz or whatever you use. This is why tube amps are "louder."I naively tried the L-Pad by itself to tame my 30W beast.. without doing math. It got so hot I couldn't touch it. It didn't fail, but boy did it make me nervous.Then I did math. I got a 100W, 8 ohm, aluminum-case, resistor and wired it in parallel to the L-Pad. This divides all the power from the amp by 2. Half of it hits the resistor and the other half hits the L-Pad. I set the amp to 4 ohms, and plug the output of the L-Pad into my 8 ohm speaker cabinet, and it works awesome.So with a $13 L-Pad, a $12 power resistor (I got it on amazon too), a $6 electrical node box and cover from the hardware store, and jacks and miscellaneous out of my parts bin.. I built a guitar amp attenuator that can handle a 50W guitar amp.Get this and learn about audio. It's a win - win.
confirmed customer
Reviewed in the United States on June 21, 2011
I bought this as a well-priced trial to place between my valve amp (VHT special 6 combo) and its internal speaker, so I can crank the amp, get that lovely tube sound, and keep my hearing (and my wife) happy.EVH used a variac, IIRC, but this thing, as my understanding goes, is a little safer because it presents itself as a constant impedance to the amp's output. In this particular case it's 8 ohms. My amp's internal speaker is 16 ohms (which I neglected to check first. D'oh), but I just use the 8 ohm output and everything's GREAT.I wouldn't use this for mega-high output amps. Probably best to keep use it with nothing greater than say 50w MAX. I hear these things can get hot when in use. Mine doesn't (but it's only a 6w amp!).Works GREAT. Highly recommended.