Dayton Audio D250P-8 1" Polyimide Compression Horn Driver

Brand:| Model: D250P-8
Product Video
The Dayton Audio D250P-8 compression driver features a polyimide diaphragm for a smooth character and rich detailed sound. A true rear-diaphragm design with advanced phase plug provides low distortion and excellent sonic detail.
  • 1,000-20,000 Hz frequency response
  • Optimized ferrite motor structure
  • Polyimide diaphragm for smooth, detailed reproduction
  • High sensitivity and power handling
  • 2-bolt/3-bolt mounting for a variety of applications
Part # 
Weight: 4.45 lbs.  
List Price$69.99
You Save29%
Your Price
Buy 4-up$47.35
Part # 270-402
Qty:  EA
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Product Details

Dayton Audio D250P-8 1" Polyimide Compression Horn Driver

The D250P-8 compression driver from Dayton Audio delivers sonic accuracy, power, and detail, thanks to an optimized acoustic and electromechanical design. Its robust ferrite motor is powerful yet economical, providing extended high frequency response and incredible dynamic impact. The precision polyimide diaphragm assembly is field-replaceable and features nickel-plated, spring-loaded push terminals for pro-grade serviceability.

Designed for demanding professional audio, custom cinema, or high-efficiency home audio applications, this driver is a full-spectrum performer and a true high-value choice.  A 2-bolt/3-bolt mount design allows the D250T-8 to be used with many popular horns. Please see the Related Items section for the replacement diaphragm. Mounting hardware is included.

Specifications: • Power handling: 60 watts RMS/120 watts with minimum crossover of 1.6 kHz/12 dB slope • VCdia: 1.7" • Impedance: 8 ohms • Frequency response: 1,000-20,000 Hz • SPL: 104 dB 1W/1m • Dimensions: 4.7" diameter x 2.2" depth • Net weight: 4.5 lb.

Product Specifications
  • Mounting Type2-Bolt/3-Bolt
  • Exit Diameter1"
  • Diaphragm MaterialKapton / Polyimide
  • Impedance8 ohms
  • Power Handling (RMS)60 Watts
Dayton Audio D250P-8 1" Polyimide Compression Horn Driver
  • BrandDayton Audio
  • ModelD250P-8
  • Part Number270-402
  • UPC848791000010
  • Product CategoryHorn Drivers
  • Unit of MeasureEA
  • Product Rating
    (1 Reviews)
  • Weight4.45 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.

Similar Products

View similar products to the Dayton Audio D250P-8 1" Polyimide Compression Horn Driver
in the Horn Drivers product category.


Dayton Audio D250P-8 1" Polyimide Compression Horn Driver
Dayton Audio D250P-8 1" Polyimide Compression Horn Driver is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from PhenominalI am working on a horn speaker project using all Dayton components. The one thing I was lacking was an HF driver, that had high enough sensitivity to keep up with the rest of drivers. Then low and behold I see Dayton compression drivers in the new products directory. After a quick comparison of specs I chose to give the Polymide driver a shot. Overall I am very pleased with the sound and performance of this driver, and will continue to use it in my future projects.
Date published: 2012-11-27
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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 tech@parts-expresss.com  for a prompt reply.
Dayton Audio D250P-8 1" Polyimide Compression Horn Driver

Can I wire this driver in parallel with the titanium version of this? One of each. Or will this give problems in responce/ powerhandling/ etc.?

Asked by: leonveek
You can use the polyimide driver and the titanium driver in parallel with no problems if desired. The only difference between the drivers is the diaphragm material.
Answered by: DaytonAudio_Rory
Date published: 2014-12-01

Will this work with with this waveguide?         http://www.parts-express.com/community-1-exponential-horn-90x40-non-standard-2-bolt-for-uc1-compression-driver--299-522

Asked by: jpjpjp
Unfortunately no, the bolt spacing on the horn is 91mm and is a proprietary fit for the Community UC-1 driver.
Answered by: MattP
Date published: 2014-06-30

What is the best and cheapest compatible horn or waveguides for this dayton driver?

Asked by: victorino
The cheapest compatible horn lens that will work with this driver would be in the link below:http://www.parts-express.com/prv-audio-wg11-25-b-90-x-60-abs-waveguide-2-3-bolt--294-2846
Answered by: MattP
Date published: 2014-05-19

What is the exit angle of the horn throat?

I'm turning custom wood JMLC horns and need the throat angle so the horn can be turned to match. Don't really want to have to remove the bug screen to measure throat angle...
Asked by: gpimm
I looked at one of mine and i'm not sure what you mean by throat angle. It's conical with a 1" mouth---the taper is blocked by the phase plug though. Usually it's a 90 degree throat taper. Remember, to add about 1-1.4" to allow for that in your horn length design. Also, the diffraction effect in the first 6" or so will help with your horizontal horn rate. Did you mean "tuned to match"? You have a nifty project here.
Answered by: Joe from San Francisco
Date published: 2013-09-11

When a positve signal is applied to the red terminal, does the diaphragm move toward the horn throat?

JBL did an article on polarity conventions;http://www.jblpro.com/pub/technote/tn_v1n12b.pdf
Asked by: dgwojo
Yes, this is typical of any driver.
Answered by: MattP
Date published: 2013-10-07

what are the advantages and disadvantages of titanium drivers (D250T-8) vs polyimide drivers(D250P-8) for P.A. set up , and home set up

1" compression horn drivers
Asked by: larry gj
This type of question boils down to personal preference. A titanium horn will have a brighter sound due to it's break up frequency whereas the Polymide will not be as bad.If you like metal dome tweeters, you will probably enjoy the titanium compression drivers as well.
Answered by: MattP
Date published: 2012-11-13
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