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#1
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help with Speaker wiring...
Hey guys new to the NG, but have been monitoring for a bit. I am in need of
a schematic for a two way floor monitor speaker cabinet....heres the details.....maybe someone can help!!! the box contains : 1 - 15 Inch 250W H325 woofer which is 8 Ohm (Not sure of Brand) 1 - Peizo Tweeter (Horn) Fostex 025H30 also 8 Ohm 1 - AT50H Attenuator L-8 ohm (has three contacts) 2 - 1/4 inch jacks (1 for in, and 1 for out) Mono I am trying to wire it so the tweeter uses the attenuator (I think thats how its supposed to be......correct me if I am wrong) connected to the middle contact of the attenuator is a white component looks like ceramic it says "10W 10-Ohm-J and has an HR in a diamond shape connected to the right side contact on the Attenuator is a Yellow Component that has the following written on it "TI 4.0J 250 VDC/160VAC" This is confusing to me as to the proper wiring of the speaker monitor! Please if you can help....draw me out a basci schematic.......and any advice on better components etc.... I really need this monitor and there is no technician here where I live! Thanks Alot for any help!!!!!!! |
#2
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help with Speaker wiring...
marco9 wrote: Hey guys new to the NG, but have been monitoring for a bit. I am in need of a schematic for a two way floor monitor speaker cabinet....heres the details.....maybe someone can help!!! the box contains : 1 - 15 Inch 250W H325 woofer which is 8 Ohm (Not sure of Brand) 1 - Peizo Tweeter (Horn) Fostex 025H30 also 8 Ohm Piezo tweeter don't have Ohms ! Are you sure it's a piezo or were you guessing ? It's NOT a piezo. You can buy spare diaphragms. http://cgi.ebay.com/Diaphragm-for-Fo...QQcmdZViewItem 1 - AT50H Attenuator L-8 ohm (has three contacts) 2 - 1/4 inch jacks (1 for in, and 1 for out) Mono I am trying to wire it so the tweeter uses the attenuator (I think thats how its supposed to be......correct me if I am wrong) So how is it wired now ? connected to the middle contact of the attenuator is a white component looks like ceramic it says "10W 10-Ohm-J A 10 ohm 10 watt resistor. It should go in series with the piezo tweeter (except it's not a piezo !) but even so it may be intended to be in series with the tweeter. and has an HR in a diamond shape connected to the right side contact on the Attenuator is a Yellow Component that has the following written on it "TI 4.0J 250 VDC/160VAC" A 4 uF capacitor. It would seem to be forming a high pass filter incombination with the attenuator. Why do you need a schematic ? Isn't it already wired up ? Graham |
#3
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help with Speaker wiring...
On Sat, 06 Oct 2007 08:01:58 +0100, Eeyore
wrote: marco9 wrote: Hey guys new to the NG, but have been monitoring for a bit. I am in need of a schematic for a two way floor monitor speaker cabinet....heres the details.....maybe someone can help!!! the box contains : 1 - 15 Inch 250W H325 woofer which is 8 Ohm (Not sure of Brand) 1 - Peizo Tweeter (Horn) Fostex 025H30 also 8 Ohm Piezo tweeter don't have Ohms --- They don't? Then how do they manage to do work? -- JF |
#4
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help with Speaker wiring...
John Fields wrote: Eeyore wrote: marco9 wrote: Hey guys new to the NG, but have been monitoring for a bit. I am in need of a schematic for a two way floor monitor speaker cabinet....heres the details.....maybe someone can help!!! the box contains : 1 - 15 Inch 250W H325 woofer which is 8 Ohm (Not sure of Brand) 1 - Peizo Tweeter (Horn) Fostex 025H30 also 8 Ohm Piezo tweeter don't have Ohms --- They don't? Then how do they manage to do work? They have Farads. And I'm sure you're going to nitpick now on account of the real component of work. I suspect that may be outside the OP's area of scientific understanding though. Graham |
#5
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help with Speaker wiring...
On Sat, 06 Oct 2007 23:44:23 +0100, Eeyore
wrote: John Fields wrote: Eeyore wrote: marco9 wrote: Hey guys new to the NG, but have been monitoring for a bit. I am in need of a schematic for a two way floor monitor speaker cabinet....heres the details.....maybe someone can help!!! the box contains : 1 - 15 Inch 250W H325 woofer which is 8 Ohm (Not sure of Brand) 1 - Peizo Tweeter (Horn) Fostex 025H30 also 8 Ohm Piezo tweeter don't have Ohms --- They don't? Then how do they manage to do work? They have Farads. --- Farads doesn't make them work, what does is the poling of the ceramic material, which then makes it piezoelectric. He try to learn something: http://www.americanpiezo.com/piezo_t...avior.html#top http://www.pulsardevelopments.com/pr...l/piezoan.html --- And I'm sure you're going to nitpick now on account of the real component of work. --- No need to, now that you've admitted that there _is_ a real, resistive component to work. Not only that, a piezo transducer exhibits an electrical (as well as mechanical) _impedance_ (as opposed to merely a reactance) so there's also a real, resistive component there. --- I suspect that may be outside the OP's area of scientific understanding though. --- So what? Do you think that somehow minimizes your ignorance? -- JF |
#6
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help with Speaker wiring...
John Fields wrote: Eeyore wrote: John Fields wrote: Eeyore wrote: marco9 wrote: Hey guys new to the NG, but have been monitoring for a bit. I am in need of a schematic for a two way floor monitor speaker cabinet....heres the details.....maybe someone can help!!! the box contains : 1 - 15 Inch 250W H325 woofer which is 8 Ohm (Not sure of Brand) 1 - Peizo Tweeter (Horn) Fostex 025H30 also 8 Ohm Piezo tweeter don't have Ohms --- They don't? Then how do they manage to do work? They have Farads. --- Farads doesn't make them work, what does is the poling of the ceramic material, which then makes it piezoelectric. He try to learn something: http://www.americanpiezo.com/piezo_t...avior.html#top http://www.pulsardevelopments.com/pr...l/piezoan.html --- And I'm sure you're going to nitpick now on account of the real component of work. --- No need to, now that you've admitted that there _is_ a real, resistive component to work. Not only that, a piezo transducer exhibits an electrical (as well as mechanical) _impedance_ (as opposed to merely a reactance) so there's also a real, resistive component there. --- I suspect that may be outside the OP's area of scientific understanding though. --- So what? Do you think that somehow minimizes your ignorance? Actually, I simply don't feel the need to confuse the beginner with detail unrelated to his enquiry. I see plenty of responders who choose to answer a simple question with a lecture, I for my part prefer to offer a concise answer. Graham |
#7
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help with Speaker wiring...
On Sun, 07 Oct 2007 10:59:48 -0700, GoldIntermetallicEmbrittlement
g wrote: On Sun, 07 Oct 2007 11:06:50 -0500, John Fields wrote: On Sat, 06 Oct 2007 23:44:23 +0100, Eeyore wrote: John Fields wrote: Eeyore wrote: marco9 wrote: Hey guys new to the NG, but have been monitoring for a bit. I am in need of a schematic for a two way floor monitor speaker cabinet....heres the details.....maybe someone can help!!! the box contains : 1 - 15 Inch 250W H325 woofer which is 8 Ohm (Not sure of Brand) 1 - Peizo Tweeter (Horn) Fostex 025H30 also 8 Ohm Piezo tweeter don't have Ohms --- They don't? Then how do they manage to do work? They have Farads. --- Farads doesn't make them work, what does is the poling of the ceramic material, which then makes it piezoelectric. He try to learn something: http://www.americanpiezo.com/piezo_t...avior.html#top http://www.pulsardevelopments.com/pr...l/piezoan.html --- And I'm sure you're going to nitpick now on account of the real component of work. --- No need to, now that you've admitted that there _is_ a real, resistive component to work. Not only that, a piezo transducer exhibits an electrical (as well as mechanical) _impedance_ (as opposed to merely a reactance) so there's also a real, resistive component there. --- I suspect that may be outside the OP's area of scientific understanding though. --- So what? Do you think that somehow minimizes your ignorance? We used a 200 plus wafer stack for micro-machining, so the pre-load pressure, as well as the work pressure feedback also causes a reactance. They operated at 800V from 20 to 20,000, and the nano-machining centers are used for race horse contact lenses, and the machines were bought/made for Bausch and Lomb. One could cut an optical grade surface on the face of a spinning lathe spindle, or even turn a round shaft into a square shaft with one of these FSTs (Fast Tool Servo) tool heads attached. Total traverse, less than 2 mm. Surface finish/quality accuracy, less than 2 microns. --- Interesting. Years ago, for the U.S. Navy, I designed and built a 40kHz projector using a hollow spherical segment of PZT8 as the projector and a couple of ENI 1kW power amps to drive it, underwater. When we fired it up a visible, golf-ball sized area of cavitation appeared at what was the focal point, the center of the sphere. Pretty neat machine. :-) I'll post pictures if anyone's interested. -- JF |
#8
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help with Speaker wiring...
On Sat, 06 Oct 2007 23:44:23 +0100, Eeyore wrote:
John Fields wrote: Eeyore wrote: marco9 wrote: Hey guys new to the NG, but have been monitoring for a bit. I am in need of a schematic for a two way floor monitor speaker cabinet....heres the details.....maybe someone can help!!! the box contains : 1 - 15 Inch 250W H325 woofer which is 8 Ohm (Not sure of Brand) 1 - Peizo Tweeter (Horn) Fostex 025H30 also 8 Ohm Piezo tweeter don't have Ohms They don't? Then how do they manage to do work? They have Farads. And I'm sure you're going to nitpick now on account of the real component of work. I suspect that may be outside the OP's area of scientific understanding though. Of course they have ohms! An infinite number of them, in fact! ;-) And at the frequencies in question, they have "impedance". Cheers! Rich |
#9
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help with Speaker wiring...
They have MICRO-farads at best. I'd guess it's more like pico-farads. |
#10
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help with Speaker wiring...
PhattyMo wrote: They have MICRO-farads at best. I'd guess it's more like pico-farads. I think it's usually specified in nanofarads actually. It's still farads though, not ohms. Graham |
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