Not sure what you are referring to. Only thing I see on the back is the horn drivers (big magnets!), and an enclosure for the 12" custom driver for the low bass horn (on the top). There is no port on a horn... or on any Magico speaker (God save us from that!)
Magico Ultimate 3
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Hi Stereo...I think he meant the three small circles along the white sloping section at the back...perhaps just a design element?
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http://www.aleacoustic.com/Drivers_2.html
http://en.wikipedia.org/wiki/Compression_driver
brings me to another point , off course its open baffle and there is no acoustic shortcut as i can see from pic s,it seems like there is a very small closed acoustic chamber behind every horn membrane.creating over and underpressure`inside hmmm...and`` possibly`` influencing the membrane excursion
http://en.wikipedia.org/wiki/Compression_driver
brings me to another point , off course its open baffle and there is no acoustic shortcut as i can see from pic s,it seems like there is a very small closed acoustic chamber behind every horn membrane.creating over and underpressure`inside hmmm...and`` possibly`` influencing the membrane excursion
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ok, now I have the chain of command, please explain how so many components can speak "as one". Firstly, 5 dacs, how do they get to work as a team? What high-end preamp has 5 inputs and 4-5 (stereo)/8-10 (monoblock) outputs? Gotta love this project! Just hope the end result is a LITTLE less stressful than the journey may prove to be!
Driven for the same master clock keeping 5 dacs in sync is not an issue. Also you can daisy chain emm labs or Ayre high grade preamps to do the trick. Alternatively, you can use dacs with build in volume control and sync them up with rs232. Not cheap, but very realistically doable.
pretty easy. Just have a common clock (using either daisy chaining, or better, a star configuration) to synchronize the Conbrio server and the 5 DACs. Same, the preamp will be controlled by the Conbrio. We are building all the intelligence to be able to adjust 5 volumes in parallel (either with a small motor to turn a knob, or with for example a signal to command a custom 10 channels LDR-based pre, controlled by a DA6116 chip). Curves for volume control will be calibrated to have 0.1dB alignment between drivers at any volume level.
Stereo, I hope you don't mind me throwing my proverbial audio spanners into the works. I'm a little perplexed as to how the original ethos of simplicity and 'minimal implementation' approach, to maximise potential of eventual outcome can be reconciled with having to link 'extra' boxes together, notwithstanding custom implementation eg a single volume control btwn multiple preamps, and a single clock to coordinate btwn multiple dacs.
It just seems to me that the criticism of signal loss thru multiple components in a passive crossover is one, possible significant, compromise. But surely a total custom set up enhances difficulty in it's own right too. I mean other than cost, there must be SO many downsides to mounting up preamps, volume controls, dacs, clocks etc.
How are you ever going to really be able to make a definitive decision btwn the two configurations you said you'd a-b in a previous post?
You have to remember I'm coming from the viewpoint of eliminating the xover completely in my system with Zu Audio Definitions Mk 4 spkrs, and given the choice I'd never go back to a xover, hearing (actually "NOT" hearing) the benefits of absence of xover in my system.
Just my two Cents.
It just seems to me that the criticism of signal loss thru multiple components in a passive crossover is one, possible significant, compromise. But surely a total custom set up enhances difficulty in it's own right too. I mean other than cost, there must be SO many downsides to mounting up preamps, volume controls, dacs, clocks etc.
How are you ever going to really be able to make a definitive decision btwn the two configurations you said you'd a-b in a previous post?
You have to remember I'm coming from the viewpoint of eliminating the xover completely in my system with Zu Audio Definitions Mk 4 spkrs, and given the choice I'd never go back to a xover, hearing (actually "NOT" hearing) the benefits of absence of xover in my system.
Just my two Cents.
- happy to hear what are the downsides besides cost. Actually there are only upside: ability to control each driver individually with an optimized solution. If you know what you are doing, it is not so difficult... And if you follow the signal, it is very simple. Between the source and the driver, there is only 3 boxes: the DAC, a passive attenuator, the amplifier. And I may even get rid of the attenuator if the digital volume control in Conbrio is going to be up to the task (all work done at 64bits, so no loss of definition)
- I will A-B both solutions because I will compare solution in Magico factory before shipping them.
- Yes, a passive crossover is detrimental to sound. But using in large band a driver which is not planned for it is even more detrimental...
Sure Stereo, you know more about what is a fantastic potential in this, and likely will be in a group of one. Just as you've had clarity in the decision to go down this route of tailored driver implementation purely in the digital domain to a cutting edge degree, my eyes/ears have been opened to the promise of no xover in a system. In reality, your system will trump any other most likely, incl mine, but I'm getting a 'hint' of the promise of more reality in music reproduction at home by eliminating the xover. With my standard xovered spkrs in the past, in retrospect they were just attempting reality and falling well short. YMMV, as all things in the high and ultra high end.
I am confused. It seems to me that Zu uses a xover in the speaker, just not on the "full range" driver.
From the website:
Tweeter detail: 1x Radian 850 based dynamic tweeter // bandwidth: 12kþ20kHz (high-pass bessel @ 18kHz)
High Pass detail: 1st order bessel @ 18kHz (12kHz acoustical) Mundorf Silver/Oil 1uF + Mills 10? 12.5W Rs + 10? 12.5W Rp
Full range driver detail: 2x Zu103/ND/G1-16 nanotech full-range driver // bandwidth: 30þ12kHz (direct and un?ltered)
Subwoofer system detail: 1x Eminence LAB-12 based subwoofer, sealed // bandwidth: 12þ80Hz (user adjustable, actively ? ltered)
Myles, what I would give for an absolutely full range driver, eg 15Hz-20kHz+ with no xover at all.
As you say, Zu have specialised in keeping the range c35Hz to c12kHz, ie the range of the human voice uninterrupted by xover. My other spkrs have always x'd over at 100Hz and 7-8kHz, slap bang in the middle of the uninterrupted Zu Full Range Driver spectrum. There are low and high pass filter networks to the built in sub at 40Hz and supertweeter at 12kHz+. Just find I'm glued to the "realness" of that middle range with no intervention. The Ultimates as configured by Stereo are going in a very different direction.
And before anyone says it, the Zu sound isn't for everyone, but I'm never looking at another spkr, I'm sure because I find the Full Range Driver sound so intoxicating.
As you say, Zu have specialised in keeping the range c35Hz to c12kHz, ie the range of the human voice uninterrupted by xover. My other spkrs have always x'd over at 100Hz and 7-8kHz, slap bang in the middle of the uninterrupted Zu Full Range Driver spectrum. There are low and high pass filter networks to the built in sub at 40Hz and supertweeter at 12kHz+. Just find I'm glued to the "realness" of that middle range with no intervention. The Ultimates as configured by Stereo are going in a very different direction.
And before anyone says it, the Zu sound isn't for everyone, but I'm never looking at another spkr, I'm sure because I find the Full Range Driver sound so intoxicating.
Maybe one day I can get rid of my Duelund Cast Coppers and 10 pound inductors.
Trickle down effect -
stereo wrote: "Between the source and the driver, there is only 3 boxes: the DAC, a passive attenuator, the amplifier. And I may even get rid of the attenuator if the digital volume control in Conbrio is going to be up to the task (all work done at 64bits, so no loss of definition)"
Maybe one day I can get rid of my Duelund Cast Coppers and 10 pound inductors.
Now I am an old fashioned type of guy [7 liters of torque vs. 3 liters of RPM], but I want the on going accumulation of this technology to be available at an OK price [not meaning cheap, but more consumer friendly]. I want great fully adjustable crossovers [all in a box - no outside computer assistance] that have NO negative effects on the signal. Do not forget to make it consumer friendly. I realize there are consumer units out there, but I have not heard any truly great reviews [that are honest].
Keep up your excellent development work,
zz.
Trickle down effect -
stereo wrote: "Between the source and the driver, there is only 3 boxes: the DAC, a passive attenuator, the amplifier. And I may even get rid of the attenuator if the digital volume control in Conbrio is going to be up to the task (all work done at 64bits, so no loss of definition)"
Maybe one day I can get rid of my Duelund Cast Coppers and 10 pound inductors.
Now I am an old fashioned type of guy [7 liters of torque vs. 3 liters of RPM], but I want the on going accumulation of this technology to be available at an OK price [not meaning cheap, but more consumer friendly]. I want great fully adjustable crossovers [all in a box - no outside computer assistance] that have NO negative effects on the signal. Do not forget to make it consumer friendly. I realize there are consumer units out there, but I have not heard any truly great reviews [that are honest].
Keep up your excellent development work,
zz.
my problem with all of these "super speakers" is that they are worth 40 cents or less on the dollar in two years. You can't give away Q7s and the like. So while people love talking about how expensive they are MSRP- they forget the back end of the bargain. Unlike art or collectible cars, audio is definitely a terrible "investment"
ps. not sure why running Soulution monoblocks on a 110db speaker is ideal
ps. not sure why running Soulution monoblocks on a 110db speaker is ideal
Second-hand they're free...but shipping'll cost you about $90,000.
I still take Keith's original point...there often is a huge write down on esoteric audio equipment. That said, I am amazed that some equipment (the truly good stuff?) has held up better. Apogee Grands, Krell MRAs, Zanden digital, Guarneris, even my old Antileon amp (either that or I got really lucky on the sale).
Second-hand they're free...but shipping'll cost you about $90,000.
I still take Keith's original point...there often is a huge write down on esoteric audio equipment. That said, I am amazed that some equipment (the truly good stuff?) has held up better. Apogee Grands, Krell MRAs, Zanden digital, Guarneris, even my old Antileon amp (either that or I got really lucky on the sale).
I refuse to take hits on anything analog (amps, cables, speakers), buy fully depreciated and always get 90%-110% of my money out upon resale.
Digital not so much of course.
I have been fortunate ...net, net on the combined value of equipment I have bought and then since sold on/traded in, I have come out a little bit ahead. Mainly due to 2 really good trades.
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