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Search: Posts Made By: Bill Fitzmaurice
Forum: Speakers   07-03-2015, 11:19 AM
Replies: 158
Views: 3,239
Posted By Bill Fitzmaurice
Correct. There is another camp that advocates use...

Correct. There is another camp that advocates use of a single driver, but for a totally different reason. That's the folks who use single driver cabs from the Fostex/Lowther mold. They do so...
Forum: Speakers   07-03-2015, 09:19 AM
Replies: 158
Views: 3,239
Posted By Bill Fitzmaurice
That's not what they did. In a nutshell you can't...

That's not what they did. In a nutshell you can't get anything approaching flat response from 80Hz to 15kHz from any small single driver system. Response will be tilted to the midrange, with weak...
Forum: Audio Theory, Setup, and Chat   07-03-2015, 06:40 AM
Replies: 10
Views: 119
Posted By Bill Fitzmaurice
+1. Anyone can claim to be a professional...

+1. Anyone can claim to be a professional installer, they only have to know more about the subject than you do. The only way to be sure that you're dealing with a real pro is to see/listen to his...
Forum: Speakers   07-03-2015, 06:35 AM
Replies: 158
Views: 3,239
Posted By Bill Fitzmaurice
+1. In 1970 few people outside of Australia were...

+1. In 1970 few people outside of Australia were even aware of T/S specs yet, let alone using them. The first major exposure here was in the JAES in 1971, and it was close to a decade before they...
Forum: Speakers   07-02-2015, 07:27 PM
Replies: 158
Views: 3,239
Posted By Bill Fitzmaurice
Not when you compare the drivers. The FE103 is...

Not when you compare the drivers. The FE103 is still around, updated, but basically the same driver we used. Back then they went for around $12 as I recall, now they're $70:...
Forum: Speakers   07-02-2015, 04:49 PM
Replies: 158
Views: 3,239
Posted By Bill Fitzmaurice
It measured with higher accuracy, sensitivity and...

It measured with higher accuracy, sensitivity and wider frequency response, but that's just the objective part of the equation. On the subjective side we applied the only testing method that really...
Forum: Speakers   07-02-2015, 04:38 PM
Replies: 11
Views: 195
Posted By Bill Fitzmaurice
No, because there's more to it than just...

No, because there's more to it than just response, with THD and transient response, for instance, being just two of the additional factors.
Forum: Speakers   07-02-2015, 12:01 PM
Replies: 158
Views: 3,239
Posted By Bill Fitzmaurice
I never said that I hadn't heard them. I just...

I never said that I hadn't heard them. I just prefer not to unless it's unavoidable. ;)
FWIW the first Bose I heard was a 901, circa 1970. My engineering class invested in nine Radio Shack/Fostex...
Forum: Speakers   07-02-2015, 11:22 AM
Replies: 158
Views: 3,239
Posted By Bill Fitzmaurice
I trust this far more. The severe peaks and nulls...

I trust this far more. The severe peaks and nulls in your chart are indicative of flawed measurement protocols....
Forum: Subwoofers, Bass, and Transducers   07-02-2015, 08:48 AM
Replies: 1
Views: 38
Posted By Bill Fitzmaurice
If it sounds good it is good. The problem with...

If it sounds good it is good. The problem with not having a sub is that you're asking main speakers to reproduce low frequencies that they don't deal with well, and one result can be muddy response....
Forum: Speakers   07-02-2015, 07:51 AM
Replies: 158
Views: 3,239
Posted By Bill Fitzmaurice
Here's the thing: they don't. Bose doesn't go any...

Here's the thing: they don't. Bose doesn't go any lower than other speakers of the same size.
Forum: Subwoofers, Bass, and Transducers   07-02-2015, 07:32 AM
Replies: 5
Views: 135
Posted By Bill Fitzmaurice
Use the rear port air velocity chart. With the...

Use the rear port air velocity chart. With the input power set to the maximum that the driver can handle (see the maximum power chart) port velocity should be kept below 20 within the intended pass...
Forum: Audio Theory, Setup, and Chat   07-02-2015, 07:26 AM
Replies: 10
Views: 119
Posted By Bill Fitzmaurice
Try this: ...

Try this:
http://www.bcae1.com/images/swfs/speakerwireselectorassistant.swf
Forum: Subwoofers, Bass, and Transducers   07-02-2015, 05:41 AM
Replies: 5
Views: 135
Posted By Bill Fitzmaurice
WinISD shows half-space anechoic response. That's...

WinISD shows half-space anechoic response. That's quite different from what occurs in a real room, where you have both boundary loading and cabin gain as part of the equation. To get a better idea of...
Forum: Speakers   07-02-2015, 05:33 AM
Replies: 158
Views: 3,239
Posted By Bill Fitzmaurice
It's a joke. You cannot simply shrink an eight...

It's a joke. You cannot simply shrink an eight foot or higher line array down to two feet high and get the same results. As is the case with most of their products their marketing department is...
Forum: Subwoofers, Bass, and Transducers   07-01-2015, 02:57 PM
Replies: 6
Views: 96
Posted By Bill Fitzmaurice
Use an extension cord.

Use an extension cord.
Forum: Speakers   07-01-2015, 02:54 PM
Replies: 158
Views: 3,239
Posted By Bill Fitzmaurice
Probably because they figured the demographics of...

Probably because they figured the demographics of RF matched better with potential Juke buyers. By the same reasoning Bose appeals to mainstream, Harmon-Kardon and Mark Levinson to upscale, Bang &...
Forum: Speakers   07-01-2015, 02:15 PM
Replies: 1,868
Views: 85,710
Posted By Bill Fitzmaurice
No need: http://ethanwiner.com/believe.html

No need:
http://ethanwiner.com/believe.html
Forum: Subwoofers, Bass, and Transducers   07-01-2015, 02:10 PM
Replies: 6
Views: 96
Posted By Bill Fitzmaurice
If you're concerned about voltage surges, which...

If you're concerned about voltage surges, which you should not be, you can use a simple inexpensive surge suppressor between the outlet and plug, but just going direct to the outlet will suffice.
Forum: Speakers   07-01-2015, 01:13 PM
Replies: 158
Views: 3,239
Posted By Bill Fitzmaurice
Profits. The uninformed masses have proven their...

Profits. The uninformed masses have proven their willingness to pay far more than they should for something simply because it has the Bose name on it. Nissan, among others, is capitalizing on that.
Forum: DIY Speakers and Subs   07-01-2015, 11:46 AM
Replies: 18
Views: 242
Posted By Bill Fitzmaurice
True, but at levels well below where they'd be...

True, but at levels well below where they'd be damaged they'd sound really bad. It's only those who ignore how bad they sound who end up paying the price for that folly.
Useful, but this best...
Forum: Speakers   07-01-2015, 09:14 AM
Replies: 158
Views: 3,239
Posted By Bill Fitzmaurice
Compared to what? Stock? Any upgrade will sound...

Compared to what? Stock? Any upgrade will sound better than stock, even if it's a marginal upgrade.

CU appealed to a higher court, where Bose lost, and the First Amendment won. ;)

Bose sells...
Forum: Audio Theory, Setup, and Chat   06-30-2015, 08:29 AM
Replies: 193
Views: 3,522
Posted By Bill Fitzmaurice
Let's see, do we believe Floyd Toole, who has a...

Let's see, do we believe Floyd Toole, who has a list of audio engineering credits longer than the Tokyo phone book, or Andrew Robinson, who attended Art Center College of Design, no degree listed....
Forum: Subwoofers, Bass, and Transducers   06-30-2015, 06:27 AM
Replies: 7
Views: 131
Posted By Bill Fitzmaurice
Typically an insurance company will want to see a...

Typically an insurance company will want to see a purchase receipt, and if that's not possible then at the very least something from the manufacturer or seller that shows the original price. From...
Forum: DIY Speakers and Subs   06-29-2015, 09:55 AM
Replies: 85
Views: 1,370
Posted By Bill Fitzmaurice
I don't sit in my car so that I can have a...

I don't sit in my car so that I can have a concert hall experience. I don't watch movies in it either. When I want that I have my living room. ;)
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