Technical and scientific discussion of amps, cables and other topics.
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The Real Belief System Exposed.............
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| Posted on August 13, 2009 at 00:13:32 | ||
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Posts: 22046
Location: SW United States Joined: November 2, 2000 |
I've apparently hit a hot button with a few of the so-called high-end "naysayers" in regard to an exposed belief system on **their** part, in which stating mere opinions or preferences of audio equipment somehow **implies** "audiophile claims of hearing differences"...... This belief system is apparently so strong, several here are now militantly defending the practice of implying "audiophile claims of hearing differences" from any preference or comment of specific audio equipment that has been posted or published. Mainly because explicit claims from audiophiles stating an ability to "hear differences" have almost never taken place in actuality. The militant defending of this belief system by the so-called "naysayers" also demonstrates the belief system is very real. Unlike the "belief system" they claim audiophiles follow. And this belief system should be cited for what it really is- An **excuse** to resent the high-end audio community, by conjuring up false accusations of "whacked" behavior on the part of audiophiles. ![]() |
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| RE: I disagree, posted on August 19, 2009 at 05:10:31 | |
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Hi-Fi Choice magazine in the UK does blind listening in their product group tests. Donald North |
| You won't accept any DBTs. No use discussing the matter with you. (nt), posted on August 26, 2009 at 07:54:35 | |
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"Probability is the very guide to life."---Cicero |
| Robert Young thinks asking for evidence is whining! (nt), posted on August 28, 2009 at 14:06:37 | |
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"Probability is the very guide to life."---Cicero |
| Isn't That The Truth? (nt), posted on August 24, 2009 at 13:07:10 | |
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Location: Orlando, Fla Joined: January 7, 2001 |
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| Yeah, but that went right over Don's head :) -nt, posted on August 19, 2009 at 10:16:45 | |
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rw |
| You described your Phantasy World - nothing more. N/T, posted on August 18, 2009 at 12:46:47 | |
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Location: NJ Joined: September 20, 2006 |
N/T |
| Beats vicariously experiencing it then attempting to build it up by beating on a strawman. nt, posted on August 18, 2009 at 16:43:16 | |
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| Shoo fly! nt, posted on August 18, 2009 at 16:47:55 | |
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Location: Tempe Joined: February 16, 2009 |
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| Does it really matter what a few think? nt, posted on August 17, 2009 at 07:39:04 | |
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a |
| Speaking of the Carver Challenge, posted on August 17, 2009 at 17:25:57 | |
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Location: Central boonies Joined: May 12, 2000 Contributor Since: April 5, 2002 |
Did you read Bob Carver's recent comments about that? :) He cheated! rw |
| My attempt at drawing the line, following your logic and recommendations:, posted on August 17, 2009 at 11:08:13 | |
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Posts: 2634
Location: NJ Joined: September 20, 2006 |
"You are a fool". How's that? |
| RE: Audiophiles are forced to make a choice every time they buy a component, posted on August 19, 2009 at 09:26:35 | |
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Calling me a liar, are you? What poor manners! ;-( |
| I only defined "liar", posted on August 21, 2009 at 08:30:42 | |
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It was your choice to call yourself one. Oh well, no one is perfect. , , , |
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| Great proof, El Nutto !, posted on August 20, 2009 at 08:16:08 | |
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Posts: 9838
Location: Central boonies Joined: May 12, 2000 Contributor Since: April 5, 2002 |
That you cannot remember why it is you believe what you do! What was that again? Your amnesia reminds me of the Tom Hank skits on SNL called "Mr. Short Term Memory". Remember this? rw |
| For your repeated and lame insults, you may ..., posted on August 18, 2009 at 08:10:51 | |
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be sentenced to nine months listening to Yoko Ono for twelve hours a day. . . . . |
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| Speaker break-in, posted on August 14, 2009 at 21:13:12 | |
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Posts: 963
Joined: June 2, 2007 |
The subject of speaker break-in is interesting, as it's among the least "far out" of audiophile claims. In fact, it's downright easy to see how it happens. There's a Spanish site in which the webmaster wrote to a bunch of speaker companies and asked them about this. It is here. The most interesting response, I think, came from Scan-Speak. I'll repeat a part of it below for clarity. "There is a fast way to do it and the speaker designer should burn in the units (especially the woofers) before tuning the cabinet volume, damping material and port length (vented speaker) and trimming the cross-over network. All you need is a sine wave generator and a power amplifier. Keep the drive unit in free air. Set the frequency to about 75% of the expected free air resonance frequency of the drive unit and turn up the voltage until the cone reaches full excursion without making mechanical noise. Let it run for 5 minutes and the job is done." I like this because it gives very specific test conditions. In fact, the conditions are rather brutal, running the driver at near Xmax for 5 minutes. Lately, I've been interested in DIY subwoofers, and have looked at various exotic drivers. One of these is the "Maelstrom-X" from Kevin Haskins of Exodus Audio. This driver is 18" in diameter and has a single-ended Xmax of 33mm. If you look at this driver in an analysis program like WinISD or even SPICE, you'll see that it takes some pretty incredible power to reach this displacement - about 2.5 kW at or around 22 Hz in a closed-box system. Do you really want to apply such power to the driver for 5 minutes straight? I doubt it. So then, you'd end up applying a lot less power, presumably taking much more time to break it in. But how much? I guess I don't care, as long as the parameters they provide are accurate for a fully broken-in driver, as Scan-Speak claims they do. Bottom line: I wouldn't dismiss speaker break-in as audiophile BS. Further, it seems the wimpier the test signal, the longer it takes to break the driver in. So for a quiche-eating audio reviewer who listens to his system wearing an ascot and smoking jacket, I can see how it would take a long time to break in a loudspeaker system :-). |
| Just As I Expected Gym. You Have NO PROOF! (nt), posted on August 21, 2009 at 06:36:30 | |
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Location: Orlando, Fla Joined: January 7, 2001 |
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| RE: Speaker break-in, posted on August 16, 2009 at 09:35:38 | |
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Posts: 963
Joined: June 2, 2007 |
"If you spring for the 18" woofer, and I think you should as it seems like a literally great thing, I'd consider breaking it in with tone bursts so you get the displacement without a lot of VC heat." Well, it looks like I screwed up here. WinISD calculates power from the amp voltage as if the impedance of the driver were the nominal rated impedance. But near resonance, the impedance gets pretty high, reducing the thermal stress a lot. SPICE tells a more accurate story. For the Maelstrom-X, it takes a sine wave of about 92.5 Volts peak to get the 33 mm Xmax (assuming linearity, a dicey assumption). At resonance, because of the high impedance, this is "only" about 235W, rather than the > 2kW you get if you assume 4 Ohms. This is a pretty cool driver, but if you put it in a closed box and use the Linkwitz transform to get the deep bass extension, it takes obscene amounts of power (> 2kW) to reach full SPL at low frequencies. Then this requires a pro amp, which means there's fans to deal with. Ugh. The Parts Express Titanic series seem to be more practical. The 15 incher has about 6 dB less output than the Maelstrom-X, but it does this with about 560W. They make a nifty external 1 kW class G amp for $425 that looks like just the ticket. The rest of my system doesn't have the SPL capability of the Maelstrom-X anyway as it turns out. BTW, I found a site with all the Thiele and Small articles here. |
| Sounds like the "Animal House" of audiophilia :-) (nt), posted on August 14, 2009 at 21:24:19 | |
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nt |
| That's for sure! Education certainly wouldn't appear to have been a priority., posted on August 15, 2009 at 06:55:07 | |
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Location: Toronto, Canada Joined: November 22, 2003 |
As for Meyer it would appear he took Home Economics instead of Statistics! Analysis of Hi-Rez v. Reedbook results - Pt. 1 Analysis of Hi-Rez v. Reedbook results - Pt. 2 To his credit however it must be admitted he had the good sense not to comment on the above (he was very active in the other threads on the topic). The same can't be said for some number of lesser idiots (some still present) who in typical dumbass fashion did their best to obfuscate the obvious. Everything matters, don't forget to tweak your placebos! |
| Did you ever figure out how to answer the question below?, posted on August 14, 2009 at 15:08:12 | |
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Location: Central boonies Joined: May 12, 2000 Contributor Since: April 5, 2002 |
Dig deep in the reaches of your intellect and give this one a try: This question Is it so far beyond your capabilities? If so, then I can easily understand why you only puppet the comments of others and have an utter lack of any sort of experience yourself. rw |
| It's all your fault, posted on August 14, 2009 at 13:33:34 | |
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You should agree with me, so we'll both be right. If I agreed with you, we'd both be wrong. . . . . |
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| RE: It's all your fault, posted on August 14, 2009 at 20:19:02 | |
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Posts: 11876
Location: Toronto, Canada Joined: November 22, 2003 |
Away, Fool!
Everything matters, don't forget to tweak your placebos! |
| Learn to read., posted on August 17, 2009 at 15:35:41 | |
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Joined: June 20, 2000 |
I did answer your irrelevant question.
"Probability is the very guide to life."---Cicero |
| Mr. Teflon has difficulty with the English language -nt, posted on August 18, 2009 at 15:42:27 | |
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Posts: 9838
Location: Central boonies Joined: May 12, 2000 Contributor Since: April 5, 2002 |
rw |
| And the sheep sure like to talk about cables :) -nt, posted on August 18, 2009 at 19:09:04 | |
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Posts: 9838
Location: Central boonies Joined: May 12, 2000 Contributor Since: April 5, 2002 |
rw |
| You're a self-fulfilling prophesy! (nt), posted on August 19, 2009 at 14:02:23 | |
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Posts: 7558
Joined: June 20, 2000 |
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"Probability is the very guide to life."---Cicero |
| Well let me state for the record I don't think you would ever like any tube equipment better, posted on August 14, 2009 at 08:30:43 | |
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Joined: January 8, 2002 |
under sighted conditions. |
| Beat Yes, But.........., posted on August 13, 2009 at 12:01:54 | |
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Location: SW United States Joined: November 2, 2000 |
I wish the "death" actually occurred...........
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| I'm with you, Tesla, posted on August 13, 2009 at 09:37:09 | |
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Regrettably, you and I appear to be in a very small minority. |
| Sorry, but you've lost me, posted on August 13, 2009 at 09:41:51 | |
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Location: NYC Joined: December 4, 2002 |
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| Quelle surprise! nt, posted on August 13, 2009 at 10:02:54 | |
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Location: Toronto, Canada Joined: November 22, 2003 |
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Everything matters, don't forget to tweak your placebos! |
| Were you born rude..., posted on August 13, 2009 at 10:19:39 | |
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Posts: 523
Location: NYC Joined: December 4, 2002 |
or is it a trait you acquired over time? Adios. |
| You will not have to till me twice., posted on August 13, 2009 at 10:42:49 | |
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Location: NYC Joined: December 4, 2002 |
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| Why? Isn't that why we're here - to have fun, using any and all means available? N/T, posted on August 13, 2009 at 15:22:22 | |
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Location: NJ Joined: September 20, 2006 |
N/T |