Dayton Audio PMPC-4.0 4.0uF 250V Precision Audio Capacitor

Dayton Audio PMPC-4.0 4.0uF 250V Precision Audio Capacitor

Brand:| Model: PMPC-4.0
These capacitors offer excellent build quality, long-term reliability, and astonishing sonic clarity, all at a 1% tolerance for improved stereo matching between speakers.
  • Tightest capacitor tolerance available: +/-1%!
  • Specially designed for crossovers and electronics
  • Extra-thick tinned copper leads
  • 250 VDC, high current capacity
  • Dimensions: 17.8 mm x 31 mm
Part # 
Weight: 0.025 lbs.  
List Price$5.19
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Your Price
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Part # 027-226
Qty:  EA
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Product Details

Dayton Audio PMPC-4.0 4.0uF 250V Precision Audio Capacitor

Dayton Audio is once again leading the charge at bringing high quality, high value products to the speaker building community. Their new line of 1% tolerance capacitors gives you the ability to construct high-precision crossovers, which can eliminate "stereo wandering" and solidify the imaging and soundstage of your speaker systems. Commercial manufacturers know of this problem and buy thousands of capacitors so they can hand-match them for their products-- now you can effectively do the same, because every capacitor is matched! These capacitors share the same excellent build quality, long-term reliability, and sonic clarity of the standard Dayton Audio metallized polypropylene capacitors. Well-known in the industry as the brand of choice for use in loudspeaker crossovers, they offer the performance of boutique capacitors at a fraction of the price. Let the excellent reputation of Dayton Audio and their Precision Capacitors help you build the best speakers that you possibly can.

Specifications: • Rated: 250 VDC • Tolerance: 1% • Value: 4.0 uF • Dimensions: 17.8 mm Dia. x 31 mm L.

Product Specifications
  • Capacitance4.0 µF
  • Voltage Rating250V
  • Tolerance1%
Dayton Audio PMPC-4.0 4.0uF 250V Precision Audio Capacitor
  • BrandDayton Audio
  • ModelPMPC-4.0
  • Part Number027-226
  • UPC844632055638
  • Product CategoryMetalized Polypropylene Capacitors
  • Unit of MeasureEA
  • Product Rating
    (10 Reviews)
  • Weight0.025 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 Dayton Audio PMPC-4.0 4.0uF 250V Precision Audio Capacitor
in the Metalized Polypropylene Capacitors product category.


Dayton Audio PMPC-4.0 4.0uF 250V Precision Audio Capacitor
Dayton Audio PMPC-4.0 4.0uF 250V Precision Audio Capacitor is rated 4.9 out of 5 by 10.
Rated 5 out of 5 by from OOPS order needed two ... ordered one originallyNo problems with PE... quick ship..with excellent customer service
Date published: 2014-09-16
Rated 5 out of 5 by from Great For KLH 20 CrossoverI recently used these to rebuild a pair of crossovers in my KLH model 20s. Two of these in parallel to equal 8uf. After only twenty hours of use I can hear major difference between these and the 47 year old original capacitors that had fallen way out of spec. Open and airy highs and solid, no longer veiled mids. Expect these to only continue to impress as time passes. Thanks for another quality product P.E!
Date published: 2014-06-03
Rated 5 out of 5 by from Dayton Audio PMPC 4.0uF CapBecause my bi-amps were past warranty and beyond repair costs levels that I wanted to spend. I removed the amps from my near-field monitors and made my active speakers passive with crossovers that I made using the Dayton Audio Precision Caps. Also, installing a Zoebel network using the formulas and parts from Parts Express, I made my very nice monitors even better sounding than before. The response is virtually flat all the way across, but with much better articulation and the bass seems to have extended itself into the sub-range. I am very surprised how well this project turned out.
Date published: 2013-04-24
Rated 5 out of 5 by from Nice Inexpensive Capacitor UpgradePurchased a pair of these to replace some 20+ year old caps in my Boston Acoustics A70 Series II Loudspeakers. Along with replacement foam surrounds, these speakers now have a new lease on life. I don't remember them sounding this good back in the day. These replacement caps look 'much larger' than the originals but are fully compatible and work flawlessly in my restoration.
Date published: 2013-03-26
Rated 5 out of 5 by from It just works.First time building passive crossovers. My ears tell me that it would not get any better soundwise.
Date published: 2010-03-11
Rated 5 out of 5 by from Great Product and ServiceI am an extreme novice when it comes to electronics. I wanted to repair my crossovers on a set of Advent Speakers and had it not been for the help and support of Parts Express, this would have never happened. They stepped me through the process with great Customer Service and supplied me with schematics and the best parts available. They sent the parts and the Speakers sound better than ever. Thanks so much.
Date published: 2008-11-18
  • 2015-03-06T07:19CST
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  • clientName_PartsExpressInternational

Product Q&A

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who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email  for a prompt reply.
Dayton Audio PMPC-4.0 4.0uF 250V Precision Audio Capacitor

I understand these metallized polypropylene capacitors improve the sound of high-fidelity speaker systems. But how well do they work in pro audio speakers? Would these caps improve the sound of PA and/or stage-monitor systems? Please advise, thank you.

Asked by: Galleonmaster
Caps will create the same differences/changes in any type of speaker system. Poly caps are popular in pro audio speakers because they can handle more power.
Answered by: MattP
Date published: 2014-07-10

Replacing caps in old 1959 Pilot cab w 4 speakers-- 4uf 50V cap & 20uf/25V. will using ones w right uf but higher V affect anything?

Asked by: cinderbaron
The voltage does not matter, that is just how much power the cap itself can handle. As long as the values are the same, the voltage can be anything.
Answered by: MattP
Date published: 2014-07-10
  • 2015-03-06T08:11CST
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