GRS PZ1025 2" x 6" Piezo Horn Mid/Tweeter Similar to KSN1025

Brand:| Model: PZ1025
Finally, an affordable drop-in replacement for those vintage KSN1025 piezos! GRS piezo tweeters are built using a 22 mm ceramic piezo element, to the original CTS specifications.
  • Perfect replacement for many classic loudspeakers
  • No crossover required - great for simple, economical designs
  • Frequency response into the ultrasonic range
  • Great for super tweeter applications in DJ/Karaoke systems
  • Equal or superior to products being sold for 8-10 times our price!
  • 22 mm ceramic piezo element that follows original CTSs original specs
Part # 
Weight: 0.25 lbs.  
List Price$6.99
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Part # 292-444
Qty:  EA
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Product Details

GRS PZ1025 2" x 6" Piezo Horn Mid/Tweeter Similar to KSN1025

The GRS PZ1025 is specifically designed and engineered to be a replacement for the very popular KSN1025 piezo tweeters from days gone by. Using a 22 mm ceramic piezo element, GRS piezo tweeters follow CTS' original recipe and are far superior to most look-alike piezos.

With a wide frequency range and ample power handling, this is also a prime candidate for new designs, especially if the crossover requirements must be kept to an absolute minimum. 

Specifications: • Power handling: 50 watts RMS/75 watts max • Frequency response: 1,800-30,000 Hz • SPL: 90 dB 1W/1m • Dimensions: Width: 7-1/4", Height: 3-1/10", Depth: 4".

Product Specifications
  • Diaphragm MaterialPiezo Ceramic
  • Power Handling (RMS)60 Watts
GRS PZ1025 2" x 6" Piezo Horn Mid/Tweeter Similar to KSN1025
  • BrandGRS
  • ModelPZ1025
  • Part Number292-444
  • UPC844632005329
  • Product CategoryHorn Loaded Bullet Tweeters
  • Unit of MeasureEA
  • Product Rating
    (5 Reviews)
  • Weight0.25 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 GRS PZ1025 2" x 6" Piezo Horn Mid/Tweeter Similar to KSN1025
in the Horn Loaded Bullet Tweeters product category.


GRS PZ1025 2" x 6" Piezo Horn Mid/Tweeter Similar to KSN1025
GRS PZ1025 2" x 6" Piezo Horn Mid/Tweeter Similar to KSN1025 is rated 4.8 out of 5 by 5.
Rated 5 out of 5 by from greatGreat service an product and I would recommend anyone to shop at Parts Express great service equipment arrived on time and hope to do more shopping
Date published: 2014-10-14
Rated 5 out of 5 by from Spot On!Read the reviews and got good advice, I ordered them and got then 3 day later, dropped them in the cab and BANG ZOOM, I am off to the races! You cant miss with Parts Express, they ship fast and have pro gear.
Date published: 2014-04-17
Rated 5 out of 5 by from Inexpensive replacementPurchased to replace tweeters in old PA speakers. They work well.
Date published: 2014-03-12
Rated 5 out of 5 by from Perfect drop-in replacements. Fit Kustom KPC10'sI killed the original CTS horns on my Sound Tech Audio Choice 15" trap cabs. No more live rock bands for the budget DJ cabs. These were perfect replacements, and sound fine. In my case, only one of the drivers failed completely, but the other one's output was down a bunch. I'd recommend replacing in pairs.I did have a look at my fleet of those very popular Kustom stage monitors, and verified that this is the horn for the 10" versions.My wish is that GRS would make a clone of the CTS Powerline series horn, with it's 400 watt rating.PLEASE?
Date published: 2013-09-15
Rated 4 out of 5 by from Great piezos!Let's face it: piezo tweeters are not the most accurate reproducers of sound. These are probably the best I have ever heard! They don't buzz, crackle or make unwanted noises like some other piezo tweeters at this price range. Excellent tweeters, and I never thought I'd say that about piezo tweeters!
Date published: 2013-08-16
  • 2015-04-21T06:37CST
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Product Q&A

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GRS PZ1025 2" x 6" Piezo Horn Mid/Tweeter Similar to KSN1025

With the mid/tweeter can you wire this without using a highpass? If so how would you wire it? Thanks

Asked by: mmalixi
Piezo drivers do not require crossovers like a standard tweeter or midrange. They are just wired in parallel with the other drivers in the system.
Answered by: MattP
Date published: 2015-02-02

I'm needing a tweeter/horn similar to this in my PA cab but mine has a capacitor inline from the tweeter/horn to the jack. Should I replace the inline capacitor as well, or will I even need it with these?

Asked by: tmartin
Piezo tweeters do not need a capacitor for protection but we do recommend a 20 ohm 20 watt resistor wired in series.
Answered by: MattP
Date published: 2014-08-13


there is not a rating for ohms listed that i can find. anyone know what it is? also, how would i wire this tweeter and an 8 ohm woofer to get 6 ohms?
Asked by: Dave B
This is a piezo tweeter so it does not have a specific impedance. There is no way to wire one of these with an 8 ohm woofer and achieve a 6 ohm load, the load will still be 8 ohms.
Answered by: MattP
Date published: 2014-01-31
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