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In Reply to: RE: Why.. did you ask ? posted by PaulF70 on September 17, 2015 at 18:26:03
I'm not anonymous, I'm Garg0yle.
"wow, you don't even understand the 604 driver. The treble is not dipole as it's a horn."
-That's pretty weak and obvious we are talking about the dynamic driver section which covers a good chunk of the mid range.
"Didn't you do that a week or two ago? After it was demonstrating you do not understand dispersion and power response?"
-OK, explain it to me.
"You didn't look very hard at all (surprise). Here you go:
http://www.audiocircle.com/index.php?topic=54147.0"
So Yamamoto buries his flagship in a forum post from 2008 and puts his crappy speakers on 6moons for review?
Makes sense.
" The speakers I currently own, of course. I stated at the outset that I am running GPA (Altec) 604s and was only curious about the Tannoy drivers. That said, we know that YOU have never heard either driver on any open baffle akin to that under discussion here, correct?"
-Well that is not entirely correct, I have heard them in the Flamenco cabinets with no back on it. (Lets call it an open baffle with wings.)
I also held it in my hand, neither situation yielded any bass to speak of. lol
"That is what I expected you to say, which is why I hesistated in offering that information. It's quite an easy retort. However, your conclusion doesn't follow logically from the premise at all. Also, I do own 604s (see the post you initially responded to). Also, I do think it likely I have quite a bit more experience than you. FWIW."
-Unfortunately as you have found, experience is not linear. It is dependent on the individuals ability to grasp, retain and apply his or her knowledge that renders an experience level.
"Last word"
△ᴉʇɐuᴉɯnllI oᴉpn∀△
Follow Ups:
Hi Paul,
I have a pair of Tannoy MG15's I have reserved to try out in OB. I read this thread hoping to find out what others might be doing but only found resistance to the idea. I have built about 8 pairs of OB using a variety of speakers including the Hawthorne Audio Silver Iris 15's.
I think you are perhaps making one mistake, and that is debating this with people who have a negative attitude and who clearly do not understand the OB potential.
The Silver Iris is based on a cheap 15" Eminence with a high Qts of about 1.2 and provides surprisingly good bass although it could be better detailed and defined. The overall sound is fun but a little unrefined with cheap XO and bottom of the range Eminence compression driver.
The Tannoy has a Qts of about 0.2 and will need help in the bass area regardless of baffle size (within reason ) The problem with increasing baffle width is it presents a huge reflective surface in the room and destroys OB's main attribute, spaciousness. I am considering using some 12" servo subs to augment the lowest 2 octaves. I will high-pass the Tannoys at about 80Hz with a 12dB LLPXO to keep the VLF from unnecessarily modulating the Tannoy cone. The resulting XO slope will nicely match the sealed box subs.
Previous experiments show a huge improvement in midrange clarity and expression when cone is freed from trying to also produce low bass. With low power handling, 65W if i remember, removing bass from the voice coil will allow the system to play louder with less thermal compression. This applies with varying degrees to all speakers
"I think you are perhaps making one mistake, and that is debating this with people who have a negative attitude and who clearly do not understand the OB potential."
Negative attitude? He asked for opinions and got them.
Maybe you guys should have asked your grandmothers instead, I am sure they will give you the blind endorsement you seek.
Have fun.
△ᴉʇɐuᴉɯnllI oᴉpn∀△
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