FM Acoustics amps
- Thread starter wizard
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I noticed that too. He said he was going to share it with us. The only thing we know for sure that his system is better than mine.
I would love to listen to it in my speakers ...
What I would love is for FM to man up and give some equipment for review to the regular's at Stereophile, AS so we have some context on how FM sounds/stacks up against hi-end gear already reviewed by said magazines. I know they won't do it though...too dangerous to their mystique reputation.
there is zero to be gained by FM Acoustics to get reviewed by a magazine. and the downside is considerable. never going to happen. it's not in their DNA.
Easy MEP, it was tongue in cheek and your too easy ....... JUMP ..!
I would love to listen to it in my speakers ...
Yes you would ....good to know you can fit in your speaker ......
Not really and i can assure you there is no concern about equipement not stacking up , unfortunately , there's a vig necessary, some pay and play , others not .....
+1
I was going to type something like that ... But add that they had excellent reviews in European and Hong Kong magazines in the past.
If Stereophile and absolute Sound were serious , they would buy one and do an ultra amp shoot out , that would never happen for the same reasons .....
Man i miss audio Critic ....
Correct micro reviews can be found on their stuff and Manny attends enuff shows for one to have a listen. IMO its very difficult to pick a winner, as i would not be suprised because of load variance and drive level , each amp will show strenghts on differerent speakers and not so on all. A comparision of all the ultra hi-end amplfiers would require multiple setups to come to a definitive winner.
I would really love to see a power cube test on all of them .... !!!
Man i miss audio Critic ....
Correct micro reviews can be found on their stuff and Manny attends enuff shows for one to have a listen. IMO its very difficult to pick a winner, as i would not be suprised because of load variance and drive level , each amp will show strenghts on differerent speakers and not so on all. A comparision of all the ultra hi-end amplfiers would require multiple setups to come to a definitive winner.
I would really love to see a power cube test on all of them .... !!!
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Thf99, sorry for the late response. Yes I have. Garry's quote from an owner, and Wizard's descriptions are essences that pretty much sums it up and in alignment with my thoughts.
To me, 'perfect balance' (ie.nothing calls for attention, yet are all alluring at the same time), and 'nothingness' (a freed mind from everything else except the music), are the two things that immediately jump to mind each and every time I heard them properly set-up.
It's too easy to sprout superlatives when describing sound, but in this case its really not. Best to go hear them yourself, if not for anything, just the experience.
550 Amps of Peak current?!? In what kind of load? Allow me to have more than strong doubts.
I am no techie...any kind of explanation for laymen to understand would be appreciated.
Somehow i typically associated high-power, high-current and high-A designs with extreme weight. Compared to the relatively smaller FMA monos, most of the high-powered amps that come to mind are supremely heavy: Gryphon, Boulder, the AM Acoustics amps that you, Wizard, have posted (300+ lbs each!!!) Is there something to the 550A measurement that is different than how others portray their A output? For example, most of us are aware there are 400-watt amps and there are 400 watts amps...forgetting class D for a second, there is a big different in real-world output between a 400-watt, say, Onkyo receiver, and a 400-watt Boulder monoblock.
So I take it that this amplifier is capable of peak wattage at 8 ohms of 2 Megawatts!!? That is what 550 Amps with an 8 ohm loads is: P in watts = Resistance in ohm * square of the amperage ... Even if we admit that the peak amperage of 550 amps is under .1 ohm (basically a short circuit) ... the amp must be capable of instantaneous peaks of 30,200 watts. We are missing something here ... Maybe that 600 Amp is under a load of .01 ohm ?!? At 8 ohms it is just impossible.
real world conditions for amps have much more to do with how quickly they react to a demand and the complete absense of any sag maintaining linearity than peak watts or power or ability to control below 1 ohm impedance.
the ease of the first few watts under any circumstances is where the magic comes. i'm sure the 118 is exemplerary in this area.
how many joules of energy do the capacitors in the 118 hold?
the ease of the first few watts under any circumstances is where the magic comes. i'm sure the 118 is exemplerary in this area.
how many joules of energy do the capacitors in the 118 hold?
Hey Mike...is the measurement capacitance in microfarads? As in 400,000-500,000 microfarads in Gryphon amps? Presumably the amount of energy the amp can store, the greater the amp's ability to instantly react to large transients/energy draws without any sag?
Large charge storage does not affect how fast the amp reacts; it affects how long it can sustain a peak before either the power supply recharges the capacitors or the power drops due to the voltage across the capacitors dropping (sagging).
One of the mods I and a friend made many years ago was to build a massive capacitor bank for a Hafler DH-200 amp. The bass improved dramatically, both by ear and measured.
One of the mods I and a friend made many years ago was to build a massive capacitor bank for a Hafler DH-200 amp. The bass improved dramatically, both by ear and measured.
Thanks...when i meant faster...i was referring in the sense that an amp with de minimus capacitance has to recharge before hitting that transient...ie it can only hit the full transient after the transient has already passed. probably not the technical way to describe it.
BTW, what is considered a lot of capacitance for a stereo amp in the context of WBF?
The energy stored in a capacitor is given by the formula W = 1/2 x V x V x C , W , V and C being in joule, volt and farad.
The square dependence on V explains why tube amplifiers have reasonable energy storage in their capacitors with much less capacitance.
There is no proved relation between the amount of capacitance and the transient behavior of an amplifier. Some designers will even tell you that amplifiers with extra large capacitance are slow sounding. And electrolytic capacitors are "slow" - they must bypassed with other types, otherwise the power supply could not react fast enough to transients.
Power supply design is very complex and is linked with the overall design of the amplifier - most of the time the "audiophile rules" are mainly due to marketing pressure. Sorry to disappoint!
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