Speaker L-Pad Attenuator 100W Mono 1" Shaft 8 Ohm

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 1" shaft length, and comes with mounting hardware.
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Part # 260-265
  • Easy level adjustment without changing impedance
  • Great for speaker design tweaking
  • Maintains 8 ohm impedance
  • Mounting hardware included

Product Details

Speaker L-Pad Attenuator 100W Mono 1" Shaft 8 Ohm

L-pads adjust the relative volume of drivers connected to them by placing added resistance in series. At the same time, a counter-resistance is placed in parallel with the driver to maintain a constant impedance which allows the original crossover design to be used. L-pads are to be placed in between the amplifier and speaker, or in between the crossover and driver. This particular L-pad is rated at 100 watts RMS, is designed to be used with 8 ohm loads, features a 1" shaft length, and comes with mounting hardware and faceplate.

Dimensions: 2-1/2" diameter, 1" depth. 

Note: See the Tech Drawings tab for wiring instructions.

L-Pad Instruction Diagram

L Pad Instruction Diagram

Speaker L-Pad Attenuator 100W Mono 1" Shaft 8 Ohm
  • BrandParts Express
  • Part Number260-265
  • UPC844632017056
  • Product CategorySpeaker L-pads
  • Unit of MeasureEA
  • Product Rating
    (25 Reviews)
  • Weight0.4158 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.

View similar products to the Speaker L-Pad Attenuator 100W Mono 1" Shaft 8 Ohm
in the Speaker L-pads product category.


Speaker L-Pad Attenuator 100W Mono 1" Shaft 8 Ohm
Speaker L-Pad Attenuator 100W Mono 1" Shaft 8 Ohm is rated 4.64 out of 5 by 25.
Rated 5 out of 5 by from Works perfectly for tweeters that are too brightI opted to place a pair of these between each one of my Definitive Studio Monitor 450's that have a 1" aluminum dome tweeter that's just too bright with almost all CD audio disks and for movie playback. I chose these after doing quite a bit of research as I didn't want to damage my expensive and nicely built Def Tech 450's.These are simple to mount right on the back binding post and cross-over plate that all Def Tech speakers have.I decided to use the 100 watt 1" which could have easily been the 3/8th instead. I thought I needed to go threw the 3/4" wood but the very thin plastic back plate ended up being the perfect mounting place, which means using the 3/8" are more than sufficient but the 1" will work just as well as the rear mounting plate is rather thin plastic.Don't hesitate to buy these for any Def Tech speakers that are too bright! Most complaints about these studio monitor 350 and 450 models is the extra brightness the well built 1" pure aluminum dome tweeters will produce.Great, well built speakers with expensive drivers and cross-over assemblies and speaker binding posts. These are easily mounted right above the cross-over and speaker binding posts and after soldering the copper wires you can get them in place nice and tight with the lock nut and washer. I also used hot glue to seal the L-Pad to avoid possible vibration.I recommend using hot glue around the two piece L-Pad and between its back plane and the plastic back plate for perfect alignment.They work perfectly and allow me to keep my vinyl sounding perfect and CDs tones back to avoid that excess brightness that anyone with good hearing has to admit is there.Great, well built speakers at 20 solid LBs but a L-Pad was really needed and should have been in the 350/450s' original design.So don't be afraid to drill a hole in the speakers plastic back plate right above the cross-over and get the fantastic option of controlling your peak high end back down where you feel it needs to be. Well built product that seems to be spot on and only attenuates the tweeter as needed with your source.These Definitive Studio Monitor 350/450 speakers are great well built speakers but the 1" aluminum dome is just too bright for most sources except when using a solid preamp, with a very good M.M or M.C. phono stage for vinyl.My Carver C-1 preamp that's been updated to top some of the best of the new breed of preamp sounds great and now I don't need to use the tone controls at all which is what all audiophiles expect from a quality preamp/amp and speaker system.Shipping cost is a bit on the high side but worth it for hard to find audio equipment like L-Pads and 3 to 12 DB inline attenuators that do not affect the quality of the sound output.Running a Carver C-1 preamp with a Hafler DH-500 255+ watts per channel amp 6 DB line attenuators are needed to get the best possible dynamic range as per the Carver C-1s manual written by genius, Mr. Bob Carver himself!
Date published: 2015-06-02
Rated 5 out of 5 by from Fast Delivery great productGreat service, fast delivery, part as advertised.Nice cataloge and good pricing a trusted vender
Date published: 2015-05-03
Rated 5 out of 5 by from very good construction,very good productvery accurate impedance is very good quality, I like it
Date published: 2015-03-22
Rated 5 out of 5 by from Super for a Guitar amp Attenuator!!!!!I used this to build a basic attenuator for my Fender Super Reverb. It works perfect! No tone loss I built a few others and they made my sound muddy, this L Pad is perfect for up to about 70 watts!
Date published: 2014-11-01
Rated 5 out of 5 by from Nice QualityLarge, beefy variable L-Pad can handle a lot of power and does a great job of fine attenuation that is consistent across its range. Worked like a charm to match my efficient tweeters to my less efficient midrange and woofer. Be sure that you have a 2-1/2" open space on your baffle to mount it and that the baffle is at least 3/4" thick. Wiring is simple and the connections hold solder nicely. Instead of recessing, I opted to open the center hole of the cosmetic plastic square plate to fit over the center nut that protrudes when mounted, and used simple double sided tape to adhere the plate to the baffle. The knob easily hides the center nut.
Date published: 2014-06-17
Rated 5 out of 5 by from great LPADi used for tube amp. excellent product. you should buy it
Date published: 2014-02-24
  • 2015-11-29T07:10CST
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Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Speaker L-Pad Attenuator 100W Mono 1" Shaft 8 Ohm

my purpose is to attenuate my 50 watt 8 ohm tube amp. i'm wondering: will the 100w L-Pad essentially bring my speaker volume down to near silent, when set at maximum? being the amp is only 50w?

Asked by: dreamconduit

will this work for 300 summitt jbls. any help will be greatfully appreciatied. thanks, Mike Fields

Asked by: Fieldsbart
As long as the driver they are used on is 8 ohms these will work fine.
Answered by: MattP
Date published: 2015-10-09

I need to replace CAT40H, 8ohm, 50dB wirewound pot manufactured by COSMOS (Tokyo). Will this work in it's place?

Asked by: mr rano
We do not have a cross reference available for this type of thing. Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531
Answered by: MattW
Date published: 2015-07-23

3 way crossover the woofer is at 4 ohms the Horn midrange is 8 ohms the horn tweeter is 50 watts at 8 ohms looking for a suitable aRotary  Attenuation  to tone the horn tweeter X 2 d b please confirm i need a pair of them regards Francis Jansz 

Asked by: smokeyjansz
If the tweeter is 8 ohms than you can use an 8 ohm l pad like this with no trouble. The woofer impedance will not have any effect on this and the tweeter.
Answered by: Chrisf
Date published: 2015-04-02

I am looking for a replacement L pad that would work in a pair of Optimus T-100 speakers. Do you have a comparable L pad?

Asked by: Truman52
If the driver that the L-pad attenuates is 8 ohm, this will work fine as a replacement.
Answered by: MattP
Date published: 2015-03-28

Can these be used as quick and easy attenuators for guitar amps?

Asked by: jrdworak
These are deisgned to be wired in line with the speaker itself, so if that is where you intend on installing it that will be fine as long as you don't exceed its rated power.
Answered by: MattP
Date published: 2015-04-02
  • 2015-11-29T07:58CST
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