kraftwerkturbo

Responses from kraftwerkturbo

Speaker Spikes - Working Principle
@vitussl101 do OSCILLATING tweeter membran REALLY MOVE a 50 lb speaker? Remember, those milligram 'pistons' go back and forth (SAME force or better, same impulse in EACH DIRCTION) about 5000 time PER SECOND. that 50 lb MASS is way to slow to move.... 
Eliminated my preamp with amazing results
How are volume controllers in the anaolog signal path (after the DAC) done today? Not anymore a variable resistance (either potentiometer or a multistep switch with descrete, high quality resistors for each step)?   
Speaker Spikes - Working Principle
@yoyoyaya "but they also stop the bottom of the cabinet from coupling directly to the floor". Yes, that crossed my mind as well. The spikes only couple the motion of the speaker assembly to the floor (undampened if made from just metal) and put on... 
Speaker Spikes - Working Principle
@ditusa Vandersteen on spikes:just came across this exmaple, and below in that same thread someone who put granite plates under the spikes. Those pucks seem to use rubber to quell speaker vibrations transmitted to the floor. The granite plates (h... 
Eliminated my preamp with amazing results
So PC-software-DAC-amp brings up the question: what software/volume control to use to play PC files. I only experiemented to simply find the volume control/software that allows the highest output (amp input not sensitive enough). Didn't consider q... 
Speaker Spikes - Working Principle
@mahgister Aside from mass (and materials wilth likely different resonance frequencies), what did you use to DAMPEN (sand filled for example (friction between sand corns converts energy), rubber (ditto), foam (? not sure)).   
Speaker Spikes - Working Principle
I guess I can close out this discussion, concluding that a) a lot are using spikes just to 'hold' their speakers b) spikes cannot decouple (reduce vibrations) the speaker from surface they are standing on.  
Speaker Spikes - Working Principle
@zo6ak Sorry, didn't see that you were trying to quote someone (i.e. missing "quote marks". It was aactuall @viridian  who said "Spikes are cheap, try them and they will either enhance your listening pleasure or they won't."  and thus promoting th... 
Speaker Spikes - Working Principle
@yoyoyaya The point of using spikes as anchors, anti slip, or 'keep level' is not disputed (even so much simpler/cheaper methods are plenty), rather their ineffectiveness as a "decoupler", "damper", or otherwise reduce vibrations.  i would even a... 
Speaker Spikes - Working Principle
@yoyoyaya Spikes as level and holding device: no issue. But piece of sticky felt, folded paper (to level), stick on rubber would do the trick without punching holes in the carpet or floor, and complicated designs.  Spikes have become another 'pix... 
Speaker Spikes - Working Principle
Another misconception: "depends on the spring rate and the mass": that is called a SWINGER for good reason. at resonance frequency, amplitude will be infinite. Try driving your car with spring only.  That is were the DAMPER comes in. Now you have... 
Speaker Spikes - Working Principle
@ditusa Thanks, that explains why spikes (or other rigid 'couplers') DON"T work. A suspected. The acrticle does NOT offer solutions to decouple.   
Speaker Spikes - Working Principle
Prevent from moving around: accepted (double sided tape would do as well).  Nice big heavy granite/cast iron plate on the bottom, some soft rubber 'pucks' will certainly help to kill SOME vibrations (sound) transmitted from the speaker to the flo... 
Speakers - Your "Safest" Choice
Those who plan to spend $20k on speakers won't have the money to buy groceries for a year, let alone subway ticket. Hitchhike to NY, sleep with the homeless and pan handle for subway ticket money.   
Sound Stage and Imaging
Just crossed my mind thinking about open baffle and reflecions: how does NEAR FIELD (reflections outside 'ear sensiivity range' compare with respect to imaging and sound stage? Guts feeling: creat imaging (pin point location) but poor 'sound stage...