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Old 15th March 2013, 10:28 AM   #91
fas42 is online now fas42  Australia
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I might just mention it, because I just thought of it in relation to another post: I've done some pretty dumb "hifi" things over the years and gotten away with it. Like, having 2 completely different speakers for left and right channel, one a floorstander, the other a bookshelf on a stand, completely different manufacturers, styles of cabinets - this sounded completely OK, other people heard it and noticed nothing.

And worse again: right channel driven by big momma discrete device amp, left by chip amp in a semi-active configuration. No nasty anomalies, nothing screaming at you saying "this is wrong!"

I ran the system in these weird ways for a few weeks each with no concerns. Meaning, when the disappearing qualities are near at hand that the ear/brain is easily satisfied with the "compromise" ...

Frank
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Old 20th April 2013, 04:19 AM   #92
wlowes is offline wlowes  Canada
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Default I'm with Alex

Quote:
Originally Posted by Alex from Oz View Post
G'day Frank,

Sonically invisible speakers? You bet. Easier than one might think.

EnABL'd drivers
EnABL'd enclosures
EnABL'd ports
Ground control pig tails

Put them together and the box disappears sonically in a normal room.

Cheers,

Alex
I have to weigh in here. I have completely experienced the same. There is no hint that the speakers are the source of the sound. And they are not small like the Plutos.

I am using Boston Acoustics I purchased in 198?. I pulled them out of storage and refoamed them. Reading Planet10 stuff, put mac tac on the cheap stamped 10" baskets. Ripped out the crossover. Replaced internal wiring with solid core copper. Drivers are run full range. The Tweeters have a 10uf Blackgate (the blue one). Sound much better but still from the speakers.

Then Enable the drivers. Pretty good. Enabled the front baffle. They disappeared for all time. Gone. Sometimes marvel at why they are sitting there. The sound stage is wider than the speakers. Often instrument is behind one of the boxes but never actually coming from the box.

Enabled the Seas silk tweeter. Slightly better. Most recently enabled the sides, top and back. Still invisible but now much more natural precise 3d soundstage.

Oh along the way added a second set of old Alnico 10 drivers running open baffle on top. Also Enabled. They are wired parallel to to the original 10" drivers giving about a 13ohm rating. Nice full natural bass.

I only mention this as it was no question that Enable brought this home. $20 thrift shop specials and seems like they beat a lot of stuff out there largely due to Enable. I do run the pigtail things which do offer a nice little pop in clarity and coherence. But to my ear, the disappearing act is all Enable.

Of course all the upstream stuff has a major impact. It all has to work, but the speaker effect can be had for very little $$ with paper cones and Enable.

I do plan on seeing if I can do better with a scratch built open baffle. Certainly the driver and the baffle will be Enabled. No question. Don't care about the science, only the sound.
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Old 20th April 2013, 04:51 AM   #93
fas42 is online now fas42  Australia
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This is very interesting to hear. Obviously the EnABL treatment is a major shortcut to getting the effect, apparently because it diminishes the level and impact of disturbing distortion being projected into the listening space. IME, this is key, so if the technique works, go for it!

Do you find the "sweet spot" to be everywhere, and that difficult recordings are much better to listen to?
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Old 20th April 2013, 08:14 AM   #94
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Quote:
Originally Posted by fas42 View Post
Do you find the "sweet spot" to be everywhere, and that difficult recordings are much better to listen to?
For me the concept of a sweet spot is mute when your speakers are invisible. The music is just 'there'. Loud volume levels become unnecessary because the engagement with the music is there in spades. Details and nuances are alive - even at very low volume levels. I can also appreciate music that is not my cup of tea as well.
Watching movies is fun because your body will twitch involuntarily at certain sounds - even when you've seen a movie many times before and you know they're coming. I got in trouble with the wife once because I didn't get up to answer the knock at the front door - it was a sound in the movie that we were watching together! :-D

Cheers,

Alex
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Old 20th April 2013, 11:09 AM   #95
fas42 is online now fas42  Australia
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Quote:
Originally Posted by Alex from Oz View Post
For me the concept of a sweet spot is mute when your speakers are invisible. The music is just 'there'. Loud volume levels become unnecessary because the engagement with the music is there in spades. Details and nuances are alive - even at very low volume levels. I can also appreciate music that is not my cup of tea as well.
I agree with everything you say ... however, many people tune into the normal terminology used, so that's why I used that phrase,
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