Last but not Least, the only good thing about piezos compaired to compression drivers are: piezos are harder to blow up than compression drivers,and piezos don't need a crossover to stop low frequency signals.But compression drivers are much higher average SPL at 1w 1m,sound much pure and much more treble detail,they cost more,and are heavier,and need at least a high pass filter,better if used with a proper crossoverīut if used with a good 18db 3rd order crossover,the compression drivers are probably safe from low frequency signals. I know you can buy the Powerline piezo series with have an internal protection unit,handling wattages up to 200w rms,400w music.īut i've seen normal square Motorola/CTS piezos in an array box of about 10 piezos,used with very high power amps,and large bass bins,used in out door events,and they seem ok,and don't blow up,how come this is? Most good piezos are either 50w rms or 75w rms,if this was matched with a 300w rms bass driver,and driven with a 300w rms amp,wouldn't the piezo be in danger of blowing? I'd like to know the truth,and the person who helps me out on this query must be experienced in pro audio,not just an idiot saying a random answer because thats what has happened to me before.The person has to explain why it needs that certain value resistor,not just presume it from what other people told him.Īlso does the CTS powerline series need another resistor like the normal unprotected piezos,because inside the CTS powerline housing is a tungsten bulb and a PTC resistor.Īlso piezo twweters,don't need a crossover to stop bass frequencies,as the nature of the piezo is it rejects low-frequency signals but would a crossover help the piezo handle high wattages without burn out. If the resistor is only there on a piezo,to stop the high resonating frequencies of modern amps damaging the piezo.Why does it need a 20w for example,when a 2w is sufficent.Īnd other people tell me i don't need a resistor for piezo tweeters at all,because it doesn't need a crossover. It really get on my nerves,why every person i've spoken to say something different.Īlso people have said use an 8 ohm ceramic wirewound 10w or 20w instead of a 22 ohm 2w metal film resistor. ![]() Daily sound pressure exposure, in excess of one (1) hour at 105 dB, may lead to permanent hearing impairment KSN1016A: 2.63' x 5.7' WIDE DISPERSION HORN TWEETER. Do NOT operate with continuous high voltage at frequencies below 20 kHz. The heralded Dahlquist DQ-10 used a KSN-1005 piezo for the highest frequencies and essentially the Large Advent woofer for the lowest.The 3khz or 4 khz piezo horn needs a 2 watt or 3 watt 47 0hm resistor in series with it.īut i've got a piezo with a 22 ohm 2 watt resistor attached to it,and it is a 3.5 khz horn. WARNING: Motorola / CTS piezo electric tweeters are extremely efficient. An application of rope caulk to the back and sides of the horn helps to deaden any plastic sound. CTS manufactures industry leading high density (HD) polycrystalline piezoelectric material Measured Density > 99.5 Theoretical Density Fine grain size (<3.5 mm) to enable micro-machining of features Uniform Electrical Properties Wafer-to-wafer and across the wafer Large Wafer Size Length and Width up to 5.8 (147 mm) x 3. Remove the three screws from the back of the piezoī.Coat the paper cone with one coat of damarĬ.Remove ‘pooling’ of damar with a tissueĤ. CTS KSN1141 Powerline Piezo Tweeter - Free Fast Ship Reverb Similar Listings Reverb Bump PIEZO TWEETER PAIR 3.75X3. Application of damar varnish on the piezo’s cone element is said to add refinement to the sound and almost completely reduce the fatiging sibilance:Ī. 0.47 uf capacitor wired in series (Hovland, $1.50 each from Madisound) I assume this only allows frequencies above 15,000 Hz (based on 12dB filter parameters) go to the piezo tweeter?ģ. SS Audio Piezo Horn Driver Speaker Repair Diaphragm Assembly For Motorola, CTS. ![]() 8 ohm/20 watt resistor across the piezo terminals (Radio Shack part # 271-120, $1.49 each) What affect does this resistor have? Does it make the piezo an appear to the system as an 8 ohm driver?Ģ. Although no crossover is needed and this driver supposedly does not significantly affect the impedence of the speaker it is wired to, I found the following ‘crossover’ circuit and modifications to the driver that is said to eliminate its "spitty and lispy" fatiguing harshness:ġ. Skar Audio VX4-ST 4-Inch 600 Watt High Compression Titanium Bullet Super Tweeter, Each. Skar Audio TWS-01 1-Inch 240 Watt Max Power Neodymium Silk Dome Tweeters, Pair. I thought I might try to extend the high frequency of the Large Advent by adding a Radio Shack Piezo Tweeter 40-1218 or the Motorola/CTS KSN-1005 (4kHz-27kHz). This item: Four (4) Piezo Replacement Tweeters for Motorola KSN1001A. English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia Türkçe Suomi Latvian Lithuanian esk. The New Large Advent has a reported frequency response of 33Hz to 17,000Hz +/- 3dB. piezoelectric tweeter datasheet - WES Components.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |