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Parts Express Speaker L-Pad Attenuator 50W Mono 1" Shaft 8 Ohm

Overview
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 50 watts RMS, is designed to be used with 8 ohm loads, features a 1" shaft length, and comes with mounting hardware, faceplate, and knob.
Highlights
  • Easy level adjustment without changing impedance
  • Great for speaker design tweaking
  • Maintains 8 ohm impedance
  • Mounting hardware included
Part # 
260-255
Weight: 0.2838 lbs.  
IN STOCK
Your Price
$10.90
Buy 10-up$9.68
Part # 260-255
Qty:  EA
Available Payment Methods

Product Details

Parts Express Speaker L-Pad Attenuator 50W 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 50 watts RMS, is designed to be used with 8 ohm loads, features a 1" shaft length with 2" square body, and comes with mounting hardware, faceplate, and volume control knob.

L-Pad Instruction Diagram

L Pad Instruction Diagram



Parts Express Speaker L-Pad Attenuator 50W Mono 1" Shaft 8 Ohm
  • BrandParts Express
  • Part Number260-255
  • UPC844632017032
  • Product CategorySpeaker L-pads
  • Unit of MeasureEA
  • Product Rating
    (10 Reviews)
  • Weight0.2838 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

Parts Express Speaker L-Pad Attenuator 50W Mono 1" Shaft 8 Ohm
Parts Express Speaker L-Pad Attenuator 50W Mono 1" Shaft 8 Ohm is rated 3.9 out of 5 by 10.
Rated 3 out of 5 by from Shaft diameter is 9mm, not 3/8"I got two of these to replace ones that I have in my custom made cabinets but found that they did not fit my existing hardware. I am using 3/8" T-Nuts to allow for setting the controls flush with the face of the cabinet. These slide right through the T_nuts. The diameter is 9mm and the thread pitch appears to be .75mm. I have been unable to find a source for hardware that will fit the shafts on these L-Pads. The pads themselves appear to be well made and I will keep them for another application. PE is researching this issue.
Date published: 2015-02-16
Rated 1 out of 5 by from l-pad 260-255wrong item the shaft on l-pad 260-255 is not 1 inch
Date published: 2015-02-04
Rated 4 out of 5 by from Excellent ValueA good value for a quality made L pad, excellent choice for DIY projects
Date published: 2014-11-20
Rated 4 out of 5 by from Good unitI have these units in use for several projects. They are well built and perform well. The features are what they are not many features needed for this type off product.
Date published: 2011-09-18
Rated 5 out of 5 by from Great L-PadSearch other stores for this L-Pad and only found it at Parts Express.
Date published: 2009-04-30
Rated 4 out of 5 by from Great replacement part and prompt delivery.As a new member to sound reinforcement it is good to have a company like parts express available. Our team is currently mending an existing sound system after years of abuse. Parts express has offered tec support and prompt delivery of products required to repair our current system. The L-pad replacement was just the begining, which brought back life to our over driven stage monitors. Thanks for your help FBC SR team.
Date published: 2009-03-11
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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.
Parts Express Speaker L-Pad Attenuator 50W Mono 1" Shaft 8 Ohm

Is the shaft threaded portion long enough to extend through 3/4" material for mounting? How much of the 1" shaft is threaded?

Asked by: Zhillsguy1
Here is the response I received from Matt at PE tech support:"Hello,Yes this will work with 3/4" material, the threaded portion of the shaft is 1" long." Thanks Matt......
Answered by: Zhillsguy1
Date published: 2015-02-11

I am restoring some Knight 2350A speakers. The crossovers are original, I believe, and the l-pads do not appear to work. The speakers are rated 8 ohm 70 watts. Would these l-pads work for that application? 

Asked by: Jakie Boy
Yes these L-pads will work fine for that application.
Answered by: MattP
Date published: 2014-11-07

will this work for a 4ohm tweeter?

Have a morel mdt30 4ohm tweeter and and SB13pfc24-08 8ohm midwoofer with a custom crossover done by simulation. The tweeter needs attenuation and I do not own the proper measuring equipment. Will this 8ohm L-pad work with my morel 4ohm tweeter?
Asked by: Dirk B.
This is only designed for 8 ohm applications unfortunately. We do not carry a l pad that is compatible with 4 ohm loads at this time.
Answered by: Chrisf
Date published: 2013-08-19

what size connectors are used for this L-pad?

Asked by: davidk35
These are 0.110" connections.
Answered by: MattP
Date published: 2013-06-20

where to insert a phase reversal switch into the network

I have used this 260-255 L-pad successfully to attenuate my mids, (and another for the tweets), but now wish to begin experimenting with home-built crossovers. I would like to be able to add a phase reversal switch (DPDT) for the mids - my question is where? - on the crossover side of the L-pad or the speaker side? Or, am I missing a better option?
Asked by: gulfislandguy
Best bet is to do as the last thing before the driver that way it works as if you just switched the leads on the driver itself.
Answered by: mtg90
Date published: 2014-09-24

What is the max attenuation of this l pad?

Asked by: Michael600f
The maximum attenuation will be at or near 100%. Full on, turned all the way to the right, will be no attenuation. Full off, all the way to the left, will be more less off.
Answered by: RussR
Date published: 2014-09-24
  • 2015-03-27T09:35CST
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