Of course if you listen to live instruments close up you may be pulled to dipoles
Ron’s New System
- Thread starter Ron Resnick
- Start date
Of course if you listen to live instruments close up you may be pulled to dipoles
Maybe the Clarisys.
those who love rock love Altecs too.
“gain more audio system experience” Is key here, as today you really need to put in effort to get exposure to horns. That’s why when I see someone liking the usual branded cone that is available at every city’s major dealer plus in multiple rooms at shows, I see a guy willing to put in less effort into the search.
TAD 4003 Dual Woofer FLH, Leif’s system, Norway – Zero Distortion
zero-distortion.org
92db@20Hz, 100db@30Hz and close to midbasshorn 110db at 75
4 metres with a 21 inch 18 sound driver driven by a low pass filter at 75 hz going down to 15hz. 2 KVA power transformers in the amps driving this.
Thanks..similar to my dipole at 30hz 100 dbTAD 4003 Dual Woofer FLH, Leif’s system, Norway – Zero Distortion
92db@20Hz, 100db@30Hz and close to midbasshorn 110db at 75
4 metres with a 21 inch 18 sound driver driven by a low pass filter at 75 hz going down to 15hz. 2 KVA power transformers in the amps driving this.
TAD 4003 Dual Woofer FLH, Leif’s system, Norway – Zero Distortion
92db@20Hz, 100db@30Hz and close to midbasshorn 110db at 75
4 metres with a 21 inch 18 sound driver driven by a low pass filter at 75 hz going down to 15hz. 2 KVA power transformers in the amps driving this.
Hello , your info needs an additional full 20 hz - 20 khz FR graph to make some sort of a correct assessment , i could not find one in your review .
As taken from your review
Some measurements: 92db@20Hz, 100db@30Hz and close to midbasshorn 110db at 75.
30 hz @ 100 db and 20 hz @ 92 db
You give no info on where the measuring microphone is placed ( closer , further away) so i assume it was on the same location.
In that case you have an 8 db roll off from 30 to 20 hz which means a 20 hz tone would be hardly audible
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My apologies …Someone forgot entirely the point he was making Duhhh , that for my part I find Planar’s and Horns to bring me closest to the front n centre corporeal experience of Ronnie Scots.Ronnie Scots many times over the years
I was just listening to the twin of those towers having fun watching the meters go from 2 watts to 800 watts out of a Beethoven Trio LOL
Close but sadly the Grand in the recording was close but not close enough to the Steinway Spinet up the stairs.
Well, we keep on tryin' anyway!
Here's what I think. I think one could theoretically build a sound system that can match the acoustic output of a drum kit or piano or even an orchestra. Take a piano and realize how much vibrating mass is involved. The task would be to match that output using light, durable membranes but with electromagnetic force behind them. Not easy but doable. The problem to me is if that output can even be really captured by these smaller, less durable membranes called microphones. Ultimately we are limited really to what the mics pick up and however the engineers piece them together. We're wishing for Classic Coke but what we have on medium or file is Coke Zero. Oh and the ice is probably dirty. LOL
I don't think I'm being pessimistic. Hopefully I'm realistic. By focusing on making the recording sound coherent (at least!) standards with regards to dynamics must certainly be lower but at least we still have timbre, texture, motion, tonality so on and so forth to lean on for enjoyment so it's far from a loss as far as I am concerned.
I don't think I'm being pessimistic. Hopefully I'm realistic. By focusing on making the recording sound coherent (at least!) standards with regards to dynamics must certainly be lower but at least we still have timbre, texture, motion, tonality so on and so forth to lean on for enjoyment so it's far from a loss as far as I am concerned.
One day a few years back in nyc a marching band was playing on a sidewalk 30 feet away
made my truck windows vibrate
I can’t imagine anyone’s system to have this much acoustic energy. even if we had a system that could the room would most certainly be over loaded anyway
my nyc place is 9 feet high 20 feet wide and 55 ft deep. I’ve had a guitar and a flute and a sax
You can’t stay in there for long a sax is a very expansive sound
And a piano is beyond this. Open windows or play softly but to hit hard on keys blows my ears out
so do recording capture this ? im
Not sure but I do feel the week link is our systems
yet a well setup one can suspend disbelief for us.
our brains can be the master of illusions.
made my truck windows vibrate
I can’t imagine anyone’s system to have this much acoustic energy. even if we had a system that could the room would most certainly be over loaded anyway
my nyc place is 9 feet high 20 feet wide and 55 ft deep. I’ve had a guitar and a flute and a sax
You can’t stay in there for long a sax is a very expansive sound
And a piano is beyond this. Open windows or play softly but to hit hard on keys blows my ears out
so do recording capture this ? im
Not sure but I do feel the week link is our systems
yet a well setup one can suspend disbelief for us.
our brains can be the master of illusions.
I have heard some very good house concerts where the sound was loud but not blow your ears out loud. Of course these were BIG houses
, with very big rooms where the performances were held.The best 3 were Schubert string Quintet at the home of a doctor as part of a Schubert festival, a cello duo at a home in Zurich and finally piano/violin Sonatas (Beethoven and others), in a very large room in a very large home in Zurich. The piano was a Bosendorfer concert grand that has the extra low notes (longer piano than even a normal concert grand) played by a very accomplished Argentinian pianist and my ex playing violin. All of these would be very difficult to record without compression and not overload the recording medium.
Hi Brad,
I know you're very familiar with the BG RD75 driver in my Pendragons.
A new audiophile friend who lives only ten minutes from me in Beverly Hills visited me last night. Presently he is using Stax electrostatic speakers and is a lifelong planer aficionado.
He said that the design of the RD75 is better understood as a magnetic planar design than as a ribbon design. Confusingly Gryphon and others refer to the same driver using both terms.
I think my friend is correct: the RD75 does seem to be more of a magnetic planar-type design. This would explain why we are surprised to be hearing so much "body" (relatively speaking) from a "ribbon." (I would expect a magnetic planar driver to exhibit more" body" than a traditional ribbon driver.)
How do you characterize the design of the RD75?
I know you're very familiar with the BG RD75 driver in my Pendragons.
A new audiophile friend who lives only ten minutes from me in Beverly Hills visited me last night. Presently he is using Stax electrostatic speakers and is a lifelong planer aficionado.
He said that the design of the RD75 is better understood as a magnetic planar design than as a ribbon design. Confusingly Gryphon and others refer to the same driver using both terms.
I think my friend is correct: the RD75 does seem to be more of a magnetic planar-type design. This would explain why we are surprised to be hearing so much "body" (relatively speaking) from a "ribbon." (I would expect a magnetic planar driver to exhibit more" body" than a traditional ribbon driver.)
How do you characterize the design of the RD75?
I don't know and I'm not brad but they do sound very good on the videos you've uploaded. I regret not staying a few days in LA
Hi Ron,
The RD75 is indeed a planar magnetic design and not a true ribbon. A ribbon is free standing and moves easily (you can blow in it and moves around) and only supported at the ends; however, a ribbon can be pure foil or traces on plastic. A planar magnetic driver is clamped on all sides and under tension like an electrostatic panel. This restricts the range of motion and planar magnetics can only be plastic membranes with a metal trace either etched or glued onto the plastic membrane and this acts as the voice coil.
A ribbon driver has magnets in rows on either side of the ribbon so that the ribbon is always immersed in the magentic field. A planar magnetic driver will have either magnets behind the membrane/voice coil or will have magnets on both sides of the membrane/voice coil to create a push/pull design. The RD75 has magnets on both front and back. Old Apogees were a hybrid where the mid/high was a true ribbon and the bass panel was a planar magnetic...same with Magnepans that have a true ribbon tweeter...Diptyque, Alsyvox and Clarisys are all hybrids in that sense. Eminent technology is all planar magnetic I think. To the best of my knowledge, there is no speaker that is a true ribbon over the full frequency range.
Cheers,
Brad
Well, if your ever near Switzerland you can look me up.I don't know and I'm not brad but they do sound very good on the videos you've uploaded. I regret not staying a few days in LA
Cheers,
Brad
I don't know and I'm not brad but they do sound very good on the videos you've uploaded. I regret not staying a few days in LA
Thank you, Jack!
I put the guest room back together just yesterday. It's waiting for you!