re constant voltage
I don't know if he mentiones this on this website Soon, but you can find it in his1974 AES paper..
"Acive filters for non coincident drivers".
I don't know if he mentiones this on this website Soon, but you can find it in his1974 AES paper..
"Acive filters for non coincident drivers".
SY said:Carlos, if I had more time, I'd be more surgical. When you resort to name calling, I just start hacking crudely. So the moral is, try to stick to technical arguments if you don't like my lack of precision.
By coincidence, look who started:
rnrss said:
Here:
http://www.diyaudio.com/forums/showthread.php?postid=692576#post692576
With all those DUHs and LOLs, must be a kid.
And with this guy it's impossible to discuss anything technical, because it's only damping factor.
I'll try to avoid him, this is stupidifying.
rnrss said:
When i worked HiFi the Phase Linear that hadn't been thru thr repair shop was rare. The Cobra Cable pictured was a good way to kill one (or a PS Audio and any NAIM (which counted on a certain amount of L in the wire to stabilize them -- but were the best thing i've seen for driving dayton Wrights))
dave
carlosfm said:
Yeah, must be the farm style.
He doesn't know that Epos is a serious manufacturer and specs +/- 3db frequency response.
From where to where? 100 up 20,000?
I am sorry but any speaker that does not do at least 40 cannot reproduce the full spectrum of music... and by my standards they have to do at least 30... That and the review made by objective listeners do not seem to entirely agree with that...
In the pic I posted of mine it is +/- anything you want it to be since I use zillions of nasty op amps and sound processing equipment... and they may exist somewhere along with the holy grail I am sure but I have never hear a speaker or speaker system that did not need to be equalized in a normal home, auditorium etc app...
If any one knows of one enlighten me please...
They might be the best in thier class but they do nothing for me personally... If you are happy with them great for you!
I will never understand people that try to get everything out of one speaker or worry about +/- specs because once you put it in your room you can throw all that in the garbage... Only good if you want to listen to it in an anechioc chamber... Consistancy between drivers is way more important the the +/_ specs imho..
Not trying to boss you around at all carlos I just have a very difficult time believing that yo uhave any real experience building speakers... Now thats the 6 or 7" epos in the pic I assume?
I will believe you if you show me carlos and I am asking that you just show me what you have done... I am asking not ordering you...
I am fresh off the farm from the show me state... so if you want recognition by me show me.... That is the way us Missouri people are... So how about showing us the speakers yo ubuilt now?
planet10 said:
I'm reading up on the validity of this now actually
🙂
I might just try it with a simple TB 4" i have and xovered with a simple tweet
I'm sort of removing myself from this thread now... it's gotten too emotional for any real information to be discussed... though I still will be reading
rnrss said:
I'm unsure that's he's built any speakers
why else would he give such high marks to B&W speakers
lol I'm out for nowoh and just because a manufacturer "specs" FR response... doesn't mean much... ALL major manufacturer's fudge things a lot... I wouldn't be happy with that unless I see RTA's he's done even in open air
rnrss said:
Look, I don't feel no lack of bass ON MY ROOM with these speakers.
Even without necessity, I built a sub, which goes down to (simulated) 20Hz at -6db, on a SEALED cabinet, with no EQ to boost bass.
The rest of your post I didn't even read, I've just entered the ignore mode.
Audiophilenoob said:I'm unsure that's he's built any speakers
why else would he give such high marks to B&W speakers
What is this, kindergarden?
Are all kids on the loose?😕
I've never seen anything like this.
Good luck for the speaker you intend to build, seems like you don't have anything decent to compare with.
PS: I don't know why some think that commercial designs are all bad and only THEY know how to make the best speakers in the world.
carlosfm said:
What is this, kindergarden?
Are all kids on the loose?😕
I've never seen anything like this.
Good luck for the speaker you intend to build, seems like you don't have anything decent to compare with.
I felt I should address this before I really end my role in this thread
That was a joke carlos... 🙂
considering I've extensively heard and played with pretty much every worthy speaker now that you can buy under $40,000 that I have access to, I would say that... yes you are correct... I wish I had more extensive listening tests with ACTUALLY GOOD speakers...
🙂
you two play nice while I'm gone...
rnrss said:
The midrange is where most of the music is. I'd much. much rather have a speaker that does 80-15k (like an FE108ES in a B-Horn) and gets the midrange right than one that goes to 30 & doesn't.
If you need more bottom than that (and some rooms just won't support it) then you add a pair of active woofers (not subs per say -- a woofer should have decent response up to 1k or so to properly integrate even if XOed at 80-120 Hz.
dave
Bass, bass, bass, damping factor, damping factor...
Yes, Dave, midband and treble is where the music is, I prefer FAST, tight bass than slow and unmusical.
Also, I see some very tall speakers that almost reach the ceiling of the room and I think to myself WHAT FOR??!
Those are the fans on room treatment and EQs.😎
Yes, Dave, midband and treble is where the music is, I prefer FAST, tight bass than slow and unmusical.
Also, I see some very tall speakers that almost reach the ceiling of the room and I think to myself WHAT FOR??!
Those are the fans on room treatment and EQs.😎
At the store where i got the Nikko i heard a pair of Genelec Powered Monitors.
Dude i would cut off a toe to get that sound at home. Genious loves company Ray Charles and Norah Jones. The image was picture perfect. Old Ray was bobbing and weaving right before my eyes. They were some sweet speakers. My speakers are not even in that league yet.🙁
I wonder what wire they were using ?😱
Dude i would cut off a toe to get that sound at home. Genious loves company Ray Charles and Norah Jones. The image was picture perfect. Old Ray was bobbing and weaving right before my eyes. They were some sweet speakers. My speakers are not even in that league yet.🙁
I wonder what wire they were using ?😱
carlosfm said:
I have a friend that excercises a lot to gain weight. Maybe there are similar ideas in audio?
Madmike2 said:
Whatever they are using it is short & there are no passive components between the drivers & the amps.
dave
Madmike2 said:
"Genious loves company Ray Charles and Norah Jones", is that the title of the CD, I'm interested in that.
Powered speakers use interconnects externally, don't they?
Don't give up that toe for lust. You just might need it some day.😀
planet10 said:
Sad attempt again on my part for Humour Dave 😀 those are active monitors with god knows what kind of internal correction and the weirdest looking front baffle. But the imaging was pinpoint and the feild depth extrodinary in the near field. XLR cable was the only wire running to those babys
😀
soongsc said:
I am not talking out of my hat here when i say this. Thats is one of the BEST recorded CDs i have ever heard that did not come from Telarc or StudioLab. And the music is superb as well. Top quality kit all in all.
Ray Charles Duets with
Natalie Cole Elton john bb king Gladys Knight Diana Krall Michael Mcdonald Johnny Mathis Van Morrison Willie Nelson Bonnie Raitt James Taylor Norah Jones
Album title is Genius Loves Company
Concord Records\
Musicians sitting in ?
how about
Billy Preston
Tom Scott
Gary Grant
Clarence Macdonald
etc....
😀
It's too hot here to do anything outside, so I thought I would try some new speaker cables to see if they made any difference in my modest audio system. Since my budget is tight and I had some Cat5 cable around, I tried my hand at weaving a speaker cable.
The instructions are here.
Some more information and a damping factor(df)/wire gauge calculator here.
A quote from this website: High damping factor means that the amp is able to control the speaker's Q factor properly, and therefore not only the quantity of its motion, but also its quality. While it is assumed a damping factor of 20:1 (26 dB) is sufficient, one must also realize that speakers drop below their nominal impedance as a general rule - therefore, that 20:1 should be applied to the speaker's lowest actual impedance, not its nominal impedance. Assuming drops to 2 Ohms, relatively pessimistic, the 8 Ohm damping factor should be no smaller than 80:1.
Since I don't know the lowest impedance of my speakers, I used the 2 ohm value and used the wire gauge calculator to find the number of conductors to keep the df above 20.
The receiver is not placed between the speakers, so the wire lengths are unequal. 8 feet to the right and 4 feet to the left. I ended up with 3x4 doubled conductors to the right speaker and 3x2 doubled conductors to the left. The df for both cables is calculated to be 23.41 for each cable. The right speaker wire is equivalent to 13.28 gauge and the left is equivalent to 16.27 gauge.
Here is a picture of the termination of the right cable at the speaker. It's 3 bundles of 4 doubled wires in a left-right braid. I tried a four-strand round braid with 4 doubled conductors as shown here as a test run, but it got too tangled after about 6 inches of braiding to continue. I liked the look, though.
The instructions are here.
Some more information and a damping factor(df)/wire gauge calculator here.
A quote from this website: High damping factor means that the amp is able to control the speaker's Q factor properly, and therefore not only the quantity of its motion, but also its quality. While it is assumed a damping factor of 20:1 (26 dB) is sufficient, one must also realize that speakers drop below their nominal impedance as a general rule - therefore, that 20:1 should be applied to the speaker's lowest actual impedance, not its nominal impedance. Assuming drops to 2 Ohms, relatively pessimistic, the 8 Ohm damping factor should be no smaller than 80:1.
Since I don't know the lowest impedance of my speakers, I used the 2 ohm value and used the wire gauge calculator to find the number of conductors to keep the df above 20.
The receiver is not placed between the speakers, so the wire lengths are unequal. 8 feet to the right and 4 feet to the left. I ended up with 3x4 doubled conductors to the right speaker and 3x2 doubled conductors to the left. The df for both cables is calculated to be 23.41 for each cable. The right speaker wire is equivalent to 13.28 gauge and the left is equivalent to 16.27 gauge.
Here is a picture of the termination of the right cable at the speaker. It's 3 bundles of 4 doubled wires in a left-right braid. I tried a four-strand round braid with 4 doubled conductors as shown here as a test run, but it got too tangled after about 6 inches of braiding to continue. I liked the look, though.
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