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Old 2nd September 2008, 04:58 AM   #141
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Quote:
Originally posted by wlowes
damped the 10" driver basket
Also add a brace between the woofer magnet & back of the cabinet.

dave
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Old 2nd September 2008, 11:19 PM   #142
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wlowes,

I'd be happy to help you get some gloss coat if you don't find it locally.
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Old 3rd September 2008, 12:29 AM   #143
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Hi Cilla,

I am apparently no longer signed up for this forum! Truly, I wasn't shunning you girl, at my age I cannot afford to and your avatar is so fetching , I don't want to.

Have you experimented with the mid cone rings yet? We have had a number of brilliant success stories with them and I was immersed in them just a week and a half ago, up in BC, standing on the Planet 10 mountain side.

You should talk Ruth, the planetary goddess, into letting you come for a summer and join the party at the end of August. Victoria is one of the more visually stimulating cities I have been in, such a wide variety of faces and all of them friendly. Plus, a vegan restaurant to die for!

sumadoggie,

I will email you my private email, accept your email and then I can send you the file. Meantime I have attached a text file below with most, maybe all, of the EnABL threads, with a couple of training thread locations. Easy to learn, tedious to do, very well worth the time, even your female companions will like the improvements. I also have pretty comprehensive files, in Corel 10, for all of the PDF sets you will find from the attached text file.

wlowes

Haven't dealt with that speaker system. I assume it has a dome tweeter? If so that can be rather dramatically improved too, as can any other configuration, for that matter. You can get the two to match in transient speed, very near to seamless, and if you also pattern the front fascia, the boxes and drivers will disappear from the sound field and all that will be left is a wall of music with a couple of miles deep back edge, out past the back wall. It will take about 48 hours before the pattern is cured and the driver quits changing and the gloss takes a minimum of 24 hours to cure.

Bud
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File Type: txt enabl posts for treatment.txt (4.7 KB, 100 views)
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Old 3rd September 2008, 02:30 AM   #144
wlowes is offline wlowes  Canada
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Default Re: Boston Acoustics

Quote:
Originally posted by jallenbass
wlowes - I tried to email you but apparently you're not accepting them from this forum. What does the sand do to the sound? Did you put the sand in sealed bags?
Jallenbass - I have updated my profile. I believe email should work now.
I confess that I added the sand at the same time I replaced the wiring, so I can't speak to the impact of the sand alone. I put about 10 pounds in a sealed plastic bag in the bottom of the box under the dampening material.
I forgot to mention that I put an EnABL pattern around the edge of the baffle using self sticking felt. It brought a relaxed clarity although not as dramatic as the 2 coats of Modge Podge on the driver.
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Old 3rd September 2008, 02:44 AM   #145
wlowes is offline wlowes  Canada
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Dave,
Thanks for reminding me about the wedge tweek. I'll be sure to add it. All of your other suggestions have been spot on.
Ed, thank you for the offer to supply Microscale. I'll take u up on it if I fail to find a source in Toronto.
BudP, I'll add the pattern to the dome tweeter. I keep thinking it can't get better but each step moves it up a notch.
Walter
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Old 10th November 2008, 09:43 PM   #146
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Hi all,

I was presented with the following just today and thought it presented what EnABL is up to so well I am posting it here.

Re: AN INTRODUCTION TO EnABL

posted by The GAS Man on Mon Nov 10, 2008 9:59 am on another, private, forum. Reproduced verbatim here, with permission of the author

At long last, I am posting the results of hearing what the EnABL modification does for the sound of my loudspeakers. In addition to the EnABL modification, Planet 10 HI-FI, from where I purchased the modified drivers, adds some of their own modifications to further improve upon the raw drivers. Take a look at the Planet 10 website to get a gander at the end result: http://www.planet10-hifi.com/fostex.html

In the past, tweaks have been somewhat of a mystery where you either had to believe in a higher authority to hear the results, or strain your ears and try to convince yourself that you were indeed hearing something. AC power cables fit into that category for me. The EnABLed/Planet 10-modified, Fostex, FE126 drivers that I installed in my Atelier First Horn speaker enclosures left no doubts in my mind of the improvements that have been touted. Sadly, the last First Horn speakers were produced with no firm commitment on a replacement.

Recently, I bought a used Luxman L-590AII integrated amplifier on Audiogon at a fantastic price. Check it out here: http://www.onahighernote.com/luxman/?c=8&id=30 This is Luxman's top-of-the-line integrated so anything less in the system that doesn't measure up won't reveal the potential of this amp. Listening to this wonderful piece of eye candy through the First Horns with the stock drivers was good, but it left doubts in my mind as to value of the Luxman in my system, even at nearly half list price. I waited it out because I had placed an order from Planet 10 Hi Fi before I bought this amp. It would be any day that the order would arrive. And boy, am I ever glad I waited.

The changes brought about with the new drivers was immediately apparent. Piano is probably the most difficult instrument to record correctly and reproduce accurately. It is the benchmark by which I judge because instinctively I just know when it's right. I love Mapleshade recordings and was listening to Chris Anderson's "Love Locked Out". Anderson was the teacher for Herbie Hancock but this recording was nothing like I was expecting. Because of my disappointment it didn't get much play. It was for that reason I chose it as the last music to hear before I installed the modified drivers. Afterward when I played this CD again, the modified drivers drastically transformed the musical message. Notes from Anderson's piano were now more fully developed from hammer strike, to sustain, to decay. Harmonics and overtones could be heard more easily as they rose up from the soundboard and expanded on their way out to wash over me. All the notes up and down the keyboard were now so distinctive that I could more easily hear the separate left hand and right hand play. I also didn't encounter the peakiness that the stock drivers were apt to display. Before, certain notes played resulted in the ice pick-in-the-ear effect. The apprehension from that of bracing myself and wincing at higher volumes faded as I got to know these new drivers. The stock drivers were uneven and lumpy in retrospect. It was also more evident the emotional and dynamic inflection the artist gave to the notes and chords in his halting style as he would start, then stop just as the flow would start to carry me. However, his vocals on some songs is annoying, and meaning no disrespect, it sounds like he was toothless and aged with his singing dissonant from the beauty of his playing. It just sounds wrong. What I heard after the upgrade was more richness and intelligibility to his singing, but nothing could have made it into a silken performance. All in all what I heard was more tonal density and richness with a vibrancy that kept me captivated and enthralled as the music carried me. I was more emotionally involved as I heard the purity of the Luxman being revealed.

An aspect that was a shortcoming in the stock drivers was a small shifting of vocals or instruments located in the center of the soundstage, as if the image was wobbling slightly from side to side. The driver upgrade locked the image more solidly in the center where I didn't have the tendency to shift my head to lock back in.

As I played more Mapleshade recordings I could more easily hear brush and stick work on cymbals, almost as if being able count the number of wires in the brushes. The sound now developed from the undersides of the cymbals as would be seen from the audience, while at the same time they had a more realistic ring and chime quality. Before, they were more diffuse and dull. It was at this point that I wondered if I really needed to install the super tweeters that I once used with the First Horns. The improvement in clarity with the new drivers was significant. Ambience recovery was also improved being better able to hear the studio or club in which the recordings were made.

There did seem to be some minor trade off for the improvements. Upper bass and lower midrange seemed slightly less emphasized with the resonant decay of drum cavities not as noticable as with the stock drivers. The higher notes played on stand up bass were slightly less loud than previously heard. Saxophones notes were also slightly less in the bowl but had more note pad and mouthpiece detail. Again, while noticeable, this didn't detract in my enjoying the improvements and overall performance gains.

And yes, I had to play some Diana Krall because she is a yardstick by which so many in audio judge and evaluate equipment. The new drivers revealed more focus to her voice and removed some of the slowness that makes these recordings so tiresome. She was also more a part of the entire musical ensemble instead of being being spot lit with the accompanying musicians being mere background performers. Again, I heard more ambience recovery than I previously thought was on these recordings.

Since moving to single driver loudspeakers, it has been my belief that all audiophiles should be required to start their quest with this type of speaker. In appreciating the coherence and dynamics that can be realized from a single-driver loudspeaker in the first place, they could then move on to more fully hear and understand what multi-driver loudspeakers can and can't do as they seek improvements to their systems. A lot of frustration and needless expense could be spared if that were the case.

Judging by what I hear, the improvements brought about to single-driver loudspeakers with the EnABL treatment and Planet 10 modifications is an order of magnitude. The single-driver, high-efficiency loudspeaker can now step out of the shadows of being a niche-type, hobbyist's speaker, to that of a mainstream design where audiophiles are able to enjoy and appreciate these loudspeaker's strengths without having to tolerate their weaknesses.

If there were a category in the Grammy Awards for Advancements in Audio Playback, these would get my nomination. Thanks, Bud, and thank you Dave!

The GAS Man
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Old 10th November 2008, 10:02 PM   #147
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Neat graph cuibono!

>>> Since moving to single driver loudspeakers, it has been my belief that all audiophiles should be required to start their quest with this type of speaker. In appreciating the coherence and dynamics that can be realized from a single-driver loudspeaker in the first place, they could then move on to more fully hear and understand what multi-driver loudspeakers can and can't do as they seek improvements to their systems. A lot of frustration and needless expense could be spared if that were the case.

BudP, interesting comment that would trouble many speaker manufacturers. I agree with you. Btw, your Luxman amp looks beautiful and based on what I heard of any Luxman product years ago, it must sound equally beautiful.

Godzilla
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Old 24th November 2008, 08:48 PM   #148
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G'day,

I've been quiet on the forum for some time but tinkering in the
background with application of enABL to cabinets.

Here's a few thoughts:
1) For those of you with enABL'd drivers it will add extra magic.

2) For those who are wishing to try enABL but not
ready/willing/able to do the drivers, it will give you about 70-80%
of the sonic magic of enABL without touching the drivers.

3) If point 2 applies to you - enABL your drivers!!

Block material
If you want an easily reversible way to try cabinet enABL, you can
cut up PVC duct tape on a cutting mat to make the blocks.
Norton 'All Weather Tape' is a clear tape and thicker than duct
tape.
You can also use paint if you are familiar with the enABL process.

Stage 1 - External cabinet edges
Start with the baffle edge.
Ideally, select block size based on 4 x baffle width.
Do one speaker baffle, then listen in stereo - it will sound strangely unbalanced.
Then do the other baffle and listen again.
If you like what you hear, do all other edges of the cabinet.

Stage 2 - Internal cabinet edges
Apply the pattern along the edges of all internal panels.
Use the same size blocks as you used for the baffle.

Stage 3 - Internal cabinet walls
OK this is extreme - but wow!
Do this with paint - otherwise you'll go crazy laying blocks!
Fill in all internal panels with the enABL pattern.

Cheers,

Alex

PS - Don't forget to enABL the ports/vents/mouths!
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Old 24th November 2008, 10:03 PM   #149
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enABL'ing room's corners should also help
I can see it as addictive hobby, tried it one can really go mad painting these blocks. the more you paint this pattern more you believe in it. don't start! it's hard to stop
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Old 24th November 2008, 10:20 PM   #150
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Quote:
Originally posted by MisterTwister
it's hard to stop
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