babadono

The Pats in the Super Bowl AGAIN Does Philly even have a chance? Or should I make other plans for SB Sunday?

@Turbox Call @MetropolisLakeOutfitters as well.

R U close enough? Or is that stuff that good?

@rplace Dis ur place rplace? Looks very nice and DRY.

Dtel, he's got an 1802.

Yea the orange grill will go with your avocado refrigerator

I and many others use foam pipe insulation to seal the horn to the corner. I think it is the kind for 1/2" pipe, easy,peasy. It's already slit and just holds on to the 3/4" wood like it was made for that very purpose with no adhesives. Like I said easy,peasy.

Zeners are special critters. In one direction(polarity) they stop conduction until their "zener" voltage is exceeded. Then they "avalanche" and conduct which limits the voltage across them to their zener voltage. In the other direction they conduct like a regular forward biased diode.

You bad.

BTW the zeners did not prevent me from blowing a T35 (K77)tweeter or two in the last 40 years Get a better tweeter...just sayin

True dat....but if we're putting them back to back as in a Klipsch AA crossover is it going to matter?

Hey I saw what you did there

Yea I get it. Efficiency does not = sensitivity, but they are mathematically related. I was just trying to make a point for @ksquared And yes loudspeakers are not efficient at converting electrical energy to acoustic energy. Most of the electrical energy is dissipated as heat not converted to acoustic energy. Just like an incandescent light bulb, most of energy is converted to heat not light.

Disclaimer: I am not a speaker expert. But my understanding is this. A speaker is a transducer, it changes one form of energy to another. In this case electrical energy to acoustic energy. So if two speakers produce the same acoustic energy output given the same electrical energy input they have the same efficiency. Where am I going wrong?

The higher impedance speaker needs a higher magnitude of voltage and a lesser magnitude of current for a given wattage. What I thought was funny was your use of the word "rate" as if we're speeding up or slowing down the flow of electricity. I'm sorry if I offended you.

Ha, Ha LOL I'm sorry but that there is funny. But seriously the lower the impedance the less restriction to current flow for a given voltage. And yes you are correct some amplifiers(although rare nowadays) cannot put out the current required of a 4 ohm speaker.

@ksquared If you have a 4 ohm and 8 ohm speaker and both are rated to produce 99dB at 1 watt at 1 meter then both are using that 1 watt of power at the same efficiency. The 4 ohm speaker requires more current and less voltage than the 8 ohm speaker to dissipate the 1 watt.

$4000? Toto I don't think were in the 1970s anymore

yes

I am currently refurb'ing some Crown D75 amps.The stock caps were 10,000uF. I increased them to the biggest I could find that would still fit 22,000uF. The at rest(no signal voltage) has increased from + and -30 volts to about 36 and at full load just before clip I am still getting about 30. I did not measure what the original caps dipped to at full load. Also have not or did not check the ripple yet. But @John Warren did some of this with D45s and documented it quite well. See: Well I can't get to his forum right now, don't know why But perhaps you have seen some of his posts here. I think this extra capacitance will give a reserve of power for low freq transients and I'm sure the added voltage probably makes the outputs run a little hotter. But with our efficient Klipsch speakers I will never run these things up high anyway. In short i don't think you can hurt your receiver by upping the capacitance. Of course make sure they're still rated to work at the correct voltage.

Here we go again: SPOCK: That is true. I am not from the world you know at all. My home is a planet millions of light years away. ZARABETH: Oh, how wonderful! I've always loved books about such possibilities. But they are only stories. This isn't real. I must be imagining all this. I'm going mad! SPOCK: Listen to me. I am firmly convinced that I do exist. I am substantial. You are not imagining this.

If a tree falls in the forest but no one is there to hear it does it still make a sound?

You never know you need one until there's 2.

BTW black is a color and none is a number, A Hard Rain's Gonna Fall.

+2 that's from both of me.