PRV Audio D250Ph-S 1" Phenolic Horn Driver 8 Ohm 1-3/8"-18 TPI

Brand:| Model: D250Ph-S
Choose PRV Audio's D250Ph-S when in need of a low-distortion midrange compression driver. Works great as the mid in a 3-way speaker cabinet or even as a PA driver for small venues and gymnasiums. Car audio SPL enthusiasts use the D250PH-S for vocal reinforcement.
  • KaptonĀ® former for longevity and phenolic diaphragm for smooth sound
  • Designed for midrange use, 400-8,000 Hz
  • High 107 dB sensitivity
  • Standard 1-3/8"-18 TPI threading
  • Nickel-plated, spring-loaded speaker terminals
Part # 
Weight: 2.95 lbs.  
List Price$41.98
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Part # 294-2825
Qty:  EA
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Product Details

PRV Audio D250Ph-S 1" Phenolic Horn Driver 8 Ohm 1-3/8"-18 TPI

PRV Audio's D250Ph-S midrange phenolic compression driver is designed for use as a low-distortion mid in a three-way speaker cabinet, but can also serve as a PA announcement driver for gymnasiums and small venues due to its ability to capture the essence of voice and high 107 dB sensitivity.

High power handling and high sensitivity is achieved using a 2" diameter voice coil that is wound on a Kapton® former. A 1" exit and standard 1-3/8"-18 TPI threading allows the D250Ph-S to work as a replacement driver for many popular horns that play down to 500 Hz. The compact size and 2.99 pound weight allows for use where support brackets aren't available. Many high output, SPL car audio enthusiasts have gravitated to PRV Audio's D250Ph-S for it's high output and smooth vocal reinforcement.

Specifications: • Power handling: 75 watts RMS with recommended crossover of 500 Hz, 12 dB/octave slope • Minimum recommended crossover point: 500 Hz • VCdia: 2" • Impedance: 8 ohms • Frequency response: 400-8,000 Hz • SPL: 107 dB 2.83V/1m • Dimensions: 4.4" diameter x 2.99" depth  • Net weight: 2.99 lbs. See the Related Items section for the replacement diaphragm.

Product Specifications
  • Mounting Type1-3/8"-18 TPI
  • Exit Diameter1"
  • Diaphragm MaterialPhenolic
  • Impedance8 ohms
  • Power Handling (RMS)75 Watts
PRV Audio D250Ph-S 1" Phenolic Horn Driver 8 Ohm 1-3/8"-18 TPI
  • BrandPRV Audio
  • ModelD250Ph-S
  • Part Number294-2825
  • UPC799928733878
  • Product CategoryHorn Drivers
  • Unit of MeasureEA
  • Product Rating
    (6 Reviews)
  • Weight2.95 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 PRV Audio D250Ph-S 1" Phenolic Horn Driver 8 Ohm 1-3/8"-18 TPI
in the Horn Drivers product category.


PRV Audio D250Ph-S 1" Phenolic Horn Driver 8 Ohm 1-3/8"-18 TPI
PRV Audio D250Ph-S 1" Phenolic Horn Driver 8 Ohm 1-3/8"-18 TPI is rated 4.1667 out of 5 by 6.
Rated 5 out of 5 by from Quality productVery clean sound, love the fact you can replace diaphragms and not have to buy new speaker.
Date published: 2015-05-21
Rated 4 out of 5 by from Good sound at a reasonable price.I used this to replace a driver on an old University PA horn. It sounds so much better than the original, the frequency response is much broader. This is not a waterproof unit, so don't recommend for outdoor use (ours is indoors).
Date published: 2015-05-09
Rated 1 out of 5 by from TOTAL JUNKI bought 4 of these to try on a project.All 4 sounded completely different with very different output levels. the levels varied well more than 10dB with the freq response being an octave or more apart.I "dug into" them a little bit more and found that there is nothing to center the diaphragm on the voice coil gap and that you really have to "fine tune" the alignment to get something that is usable.I did not even bother with doing any more testing as to the suitability for my project since they were so VERY inconsistent.If you don't mind "hand tuning" these they might be OK, but not for me.
Date published: 2014-12-03
Rated 5 out of 5 by from Used as mid in a three wayEveryone touting 2 way systems for compression drivers needs to try a three way with this--you need a large waveguide - I bought the special purchase Community waveguide also from Parts Express (large format) and they sound fantastic! I have tried the pyramid tw44 tweeter cutting in at about 5KHZ and now am using a pyramid tw47tweeter on the top cutting in at about 9KHZ (there is a serious hump with that tweeter which the first order slope cuts down nicely to extend response to about 5K (all passive)---tw44 is actually the cheaper and better tweeter!; there is no need to put an inductor on this driver as its frequency response drops like a rock between 4 and 5KHZ; not having an inductor in the signal really, really improves the sound quality--I also use the electronic crossover available from pure vinyl and I have tried everything up to 6th order slopes (sounds a bit dry with the higher slopes) - to put it bluntly nothing sounds better than a first order slope between the woofer and this mid (my woofer is an old cerwin vega 12" that is properly tuned to about 35HZ in the LS12 enclosure which has been completely modified (double boxed with maple to form a 1.5" box- one of the ports was sealed otherwise bass is way to boomy) - I will eventually post a picture - Now try and guess what I am using for amplification but two Lepai T amps each channel in parallel and each driving the mid and the tweeter--sounds unbelievable - (I have very good amps both solid state and tubes -) I feel no need to change these!
Date published: 2014-10-20
Rated 5 out of 5 by from Loud horn driverI bought four prv and they are the best on the market. They really really lound I would recommend to any body
Date published: 2014-05-25
Rated 5 out of 5 by from very loud and clearTHEY GO VERY VERY LOUD AND SOUND VERY CLEAR. combined with tweeters and the appropriate passive crossovers bought from PE.
Date published: 2014-02-12
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Product Q&A

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PRV Audio D250Ph-S 1" Phenolic Horn Driver 8 Ohm 1-3/8"-18 TPI

Do u have a small amp for the driver

Asked by: tyrell
This requires a bit more information in order to proceed. Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-03-24

Is it exactly the same driver that Selenium D250-X? I noticed that several PRV models look identical to several Selenium models but for a lower price. Is it the same company?

Asked by: wankel
Hello. to answer your question, PRV and Selenium are not the same company. Selenium was bought by the Harman Group ( an American company) and on the last 7 years many engineers and sales people from Selenium joined PRV AUDIO but they are not the same company. About the Price, it has allot to do with market positioning and distribution channels, Selenium now belongs to a very large company with public capital. PRV is a private owned company.
Answered by: PRVAudioBrazil
Date published: 2015-03-07

Are they water proof because i want to put it on the outside of my car in the grillĀ 

Asked by: erni24
This driver is not specifically waterproof so I would not recommend it for that type of application. You might want to look at something like below, set to the 16 ohm bypass.http://www.parts-express.com/dayton-audio-d1075t-75w-horn-driver-with-70v-transformer--300-190
Answered by: MattP
Date published: 2015-01-06

what is the matching horn for this

Asked by: kannant
This is measured in the spec sheet using the WG14-25 horn.http://www.parts-express.com/prv-audio-wg-14-25-1-45-x-45-abs-waveguide-1-3-8-18--294-2841This model is out of stock until the 14th, however the Selenium HL14-25 will do the same thing and is currently in stock.http://www.parts-express.com/selenium-hl14-25-1-exponential-horn-45x45-1-3-8-18-tpi--264-315
Answered by: MattP
Date published: 2014-12-10

Can you get these in 16-Ohm versions?

Leslie speaker cabinets require 16-ohm horn and woofer in order to keep the crossover point at 800 Hz. Thanks!
Asked by: Feeshy
Unfortunately these phenolic horn drivers are only available in 8 ohm models.
Answered by: MattP
Date published: 2013-09-27
  • 2015-07-07T07:39CST
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