richieb Posted February 11, 2015 Share Posted February 11, 2015 I can use 4 or 8 ohm taps on one of my amps. Which is best for KHorn with ALK networks. I threw 16 ohm in for added discussion. Quote Link to comment Share on other sites More sharing options...
moray james Posted February 12, 2015 Share Posted February 12, 2015 Klipsch don't say on their site. so you are on your own I assume that you have a tube amp (there are some SS amps which are transformer coupled). There will be one tap which most closely matches the impedance of the speaker and using that tap will result in the best transfer of current. However if that is not the highest output impedance tap of the amp I would suggest you try that tap for a while. Running on the highest rated tap will insure that you are loading the entire secondary of the output transformer. Than means there will be no output winding left up loaded to resonate. The difference in current transfer between a 4 ohm tap and a 16 ohm tap is not a lot of power so it's not like half your amp walked away from the game. Short answer is listen to all your options and choose the one you think sounds best do that 3-4 time over 3-4 months and you ought to be able to sort it out on your own. Congrats on the big guns. Best regards Moray James. what Klipsch tell you now Frequency Response: 33Hz-17kHz(+-) 4dB SENSITIVITY: 105dB @ 1watt/1meter POWER HANDLING: 100 w max continuous (400 w peak) MAXIMUM ACOUSTIC OUTPUT: 121dB SPL NOMINAL IMPEDANCE: 8 ohms TWEETER: K-77-D 1" (2.54cm) Phenolic diaphragm compression driver MIDRANGE: K-55-X 2" (5.08cm) Phenolic diaphragm compression driver MID FREQUENCY HORN: Exponential Horn WOOFER: K-33-E 15" (38.1cm) Fiber-composite cone / horn-loaded with a trihedral exponential folded CROSSOVER FREQUENCY: HF: 4500 Hz MF: 450 Hz ENCLOSURE MATERIAL: Birch Plywood & MDF ENCLOSURE TYPE: Fully horn-loaded INPUT CONNECTIONS: 5-way binding posts / Bi-wire capable DIMENSIONS: 50 .75 H (128.91 cm) x 31.25 W (79.38 cm) x 28.25 D (71.75 cm) WEIGHT: 175 lbs unboxed FINISHES: Walnut Lacquer, Cherry Lacquer, Black Lacquer Built From: 1946 Quote Link to comment Share on other sites More sharing options...
richieb Posted February 12, 2015 Author Share Posted February 12, 2015 Thanks Moray: Yes it is small integrated tube amp with 4 and 8 ohm taps, I use 8. I use the amp occasionally as it is not my best but still enjoyable. I may give the 4 tap a try as there is nothing to loose. I think I have seen that the K33 is 8 ohm and the K55 is 16. Throw in the two piece ALK slope networks and it becomes confusing, at least for me. Quote Link to comment Share on other sites More sharing options...
WMcD Posted February 12, 2015 Share Posted February 12, 2015 Let me say, 4 ohms. The K-Horn drops down that low. Someplace PWK wrote that higher (ohms) loads don't hurt but lower ones can. So the 4 ohm tap is where the amp is putting out the most current. Also, amplifier noise and hum voltage is going to be lower at the 4 ohm tap. WMcD 1 Quote Link to comment Share on other sites More sharing options...
djk Posted February 12, 2015 Share Posted February 12, 2015 "So are you saying that you can get better sound on the 4 ohm tap with Klipsch speakers and tube amps?"At low volumes a speaker always plays loudest on the 8 and 16 ohm taps. As you turn up the volume and 'thump' it a bit you will find the speaker sounds the best on the tap that closest matches its impedance, and plays the loudest too.Always try the 4 ohm tap. Leave it on whatever sounds the best.Hint: it sounds 'thin' when you turn it up if you have it hooked to too high of a tap. Quote Link to comment Share on other sites More sharing options...
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