Manuals & Resources

GRS PZ1142 Piezo Bullet Horn Driver Similar to KSN1142A

Brand:|Model: PZ1142
Finally, an affordable drop-in replacement for those vintage KSN1142A piezos! GRS piezo tweeters are built using a 22 mm ceramic piezo element, to the original CTS specifications.
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List Price$6.99
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Part # 292-448
  • 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 CTS specs

Product Details

GRS PZ1142 Piezo Bullet Horn Driver Similar to KSN1142A

The PZ1142 is specifically designed and engineered to be a replacement for the very popular KSN1142A 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.

Standard 1-3/8" 18-TPI threads facilitate use with 1" horns. 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: 400 watts max • Frequency response: 1,800-30,000 Hz • SPL: 92 dB 1W/1m • Dimensions: Diameter: 2-7/16", Depth: 1-1/2".

Product Specifications
  • Mounting Type1-3/8"-18 TPI
  • Exit Diameter1"
  • Diaphragm MaterialPiezo Ceramic
  • Power Handling (RMS)200 Watts
GRS PZ1142 Piezo Bullet Horn Driver Similar to KSN1142A
  • BrandGRS
  • ModelPZ1142
  • Part Number292-448
  • UPC844632005626
  • Product CategoryHorn Drivers
  • Unit of MeasureEA
  • Product Rating
    (5 Reviews)
  • Weight0.15 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 GRS PZ1142 Piezo Bullet Horn Driver Similar to KSN1142A
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GRS PZ1142 Piezo Bullet Horn Driver Similar to KSN1142A
GRS PZ1142 Piezo Bullet Horn Driver Similar to KSN1142A is rated 3.2 out of 5 by 5.
Rated 1 out of 5 by from a waste of moneyI've been a lead vocalist/guitarist on and off for over ten years.Decided to get a punk band going again,I had gotten rid of most my sound equipment.I have two carvin 15" subsAnd two peavey 12" monitors.Running through a brand new mackie sound board,through 2 new crown power amplifiers.I also am running a sonic maximizer through a DBX graphic EQ.It's a decent set up.All of my cabs needed horn drivers so I thought I'd give these a shot.I bought 4One didn't work at allTwo of them the voice coils are no good.so out of four right out of the box only one of them works
Date published: 2015-01-01
Rated 3 out of 5 by from Good affordable replacementI bought these to replace the horn drivers that blew in a couple of imported (generic) 2-way monitors. The monitors started off cheap, so I couldn't see spending alot of money on the project. All I wanted was higher wattage handling so the horn wouldn't blow again. The trade-off with these is that the volume output doesn't seem to be as loud. Now the 12" drivers seem to have more woofy and honk than before. I read somewhere that these versions don't have the same lightbulb-type XO protection that the originals had, and that a simple 2-way crossover may be needed. I suppose that could help my overall EQ and tone. They seem to be working fine, just remember that you can't just look at the advertized specs to make things work well together. Some trial and error will happen.
Date published: 2014-12-31
Rated 5 out of 5 by from Easy fix for a great sound at an excellent price !I used two GRS PZ1142 Piezo Bullet Horn Drivers to replace the original horn drivers in a pair of MTX TP112s , and with two Selenium ADF25-25 Horn Adapters that I modified by simply drilling 3 new holes to match the horns and they work great.
Date published: 2014-10-16
Rated 3 out of 5 by from Great Emergency SpareBought this to replace a JBL 2414H-1 in an EON 10" speaker. Fit fine. Don't screw it in too tight or it with jump the threads. Won't strip them, it just won't allow being tightened past a certain point. Decent sound, but not very loud at all. Knew that when I bought it, though, looking at the sensitivity rating. Great for adding "sizzle" and clarity to vocals, cymbals, etc. However, would not recomend if you want to accentuate a hard-hitting acoustic guitar or snare drum. For the money, great as a spare part to have on hand.
Date published: 2014-05-29
Rated 4 out of 5 by from Crisp SoundCharmingly crisp sound, light weight as well. breathed new life into my old PAs. With a crossover and a small capacitor they sound crisp without being harsh.
Date published: 2013-06-07
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Product Q&A

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GRS PZ1142 Piezo Bullet Horn Driver Similar to KSN1142A

I want to know the amount of stock The same size and GT-400CD?

Asked by: kousuke nakamichi
Yes these drivers are very similar in size. Please contact our sales and customer service for available stock, price and shipping options. sales@parts-express.com or 800-338-0531 x2.
Answered by: MattP
Date published: 2015-08-19

Does this replaces a POWERLINE CTS for my B-52. sR-18? It looks similar but mine comes with a protection circuit light bulb inside Thank you

Asked by: Memovalen
If the original driver was a screw-on piezo like this it will work as a replacement, however this does not have built in protection.
Answered by: MattP
Date published: 2014-06-25

Does this driver have the protection circuit that the original 1142 has (PTZ and light bulb)?

Asked by: mbmtech
Unfortunately this driver does not have any built in protection.
Answered by: MattP
Date published: 2014-05-14

what is the true RMS power of this driver, and i have a few more questions

what type of horn do i need for this tweeter? and the last one is what type of crossover do i need to get a response of 17k and up?the drivers i'm using go up to 17k so i want to know if you have a cross over that's good for that? i don't wan't over lapping frequencies
Asked by: bobb1234
Unfortunately the manufacturer does not specify the RMS rating for this driver although it is basically irrelevant when crossing at 17k. In order to have a high pass at this frequency you will need an 8 ohm resistor across the terminals of the driver and a 1.5 uF cap in series. This will work with any standard 1-3/8" 18 TPI mount horn lens.
Answered by: MattP
Date published: 2013-08-17

crossover for garage speaker

i purchaced 290-310 8" 4 ohm speaker. and Brand: Lepai | Model: LP-168HA amp. what would be the simplest effective crossover (or none) in 1cubic ft sealed enclosure with these tweeters
Asked by: volkdigger
These do not require a crossover however I would recommend a 20 ohm 20 watt resistor in series for added protection.
Answered by: MattP
Date published: 2013-02-05

Could this tweeter be attached to the Eminence Beta 8CX-8" Coax. I'm using it for a home HiFi setup.

The sensitivity of the recommended Eminence APT-50 tweeter is over 100dB, much to high for home use. Would this Piezo bullet with a sensitivity of 92db be a good match? The sensitivity of the Beta 8CX is 93dB.
Asked by: Paradigm
Yes this uses a standard 1-3/8 18TPI mount and will work with the BetaCX models. The sensitivity should work out well.
Answered by: MattP
Date published: 2013-01-07
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