atmasphere
Responses from atmasphere
| Amplification: what are the biggest advances of the last 40 years? During a recent visit at my local dealer, I inquired as to why the new amplifier we were listening to was so expensive?@bobbydd High end audio isn't about price, its about intention. It is true that better parts are more expensive than parts of l... | |
| Class D amps seem poised to take over. Then what? Just look at their independently measured 2ohm wattage figures (if you can find them) then compare to their 4ohm wattage figure, and see if the 2ohm even tries to come close to doubling the 4 ohm wattage figure, and post it up **** **** and if ... | |
| What about the other way around? Assuming the reverse is true that wattage output will be halved as resistance doubles, would a pair of 15 ohm Rogers LS3/5As (82.5dB/W/M) be too much of a load for a 50 wpc Forte 1A?With ~25 wpc, should I be concerned about clipping?You're corre... | |
| How to isolate turntable from footstep shake or vibration isomerically isolated? Does that mean rubber feet? No. Beneath my platform for my turntable I have some pads made of isolation damping materials- I don't recall the material (its certainly not rubber!). A different number of the pads are used depe... | |
| SOUNDLAB ULTIMATE 545 While technically true, high powered Solid state amps Like the JC1 do just fine to 105 dB (as high as I have gone) for several reasons. The JC1s due to a programming error I made absolutely fried the high frequency brilliance control and I mean... | |
| Amplification: what are the biggest advances of the last 40 years? From the perspective of an amplifier designer, these are the biggest improvements I've been aware of. OTLs became a lot more reliable- as reliable as any other tube amp. OTLs offer transparency like no other tube amp.Class D amps have been refined... | |
| How to isolate turntable from footstep shake or vibration Being a perfectionist does not mean you are paralyzed. <<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>It is my biggest obstacle, GETTING start... | |
| SOUNDLAB ULTIMATE 545 Duke is correct about Atma-Sphere but as a rule they work much better with solid state amps. The problem for most tube amps is the extremely low impedance at high frequencies. This requires a LOT of current. Big solid state amps with over built ou... | |
| Is D for Dry? Class D... Ralph, don’t skew things around "to seem" to suit your next product. I did not say "won’t handle", I said will not get "the best" out of the Alexia’s bass because of it loading.We have the Alexia’s here in front of us and know what they like to g... | |
| Using step up / down transformers? Not too much oversized though. 30% more VA than you need is a good amount. This statement isn't quite correct. AC power transformers will generate distortion, particularly if loaded past about 50%. So to prevent the transformer from distorting th... | |
| Is D for Dry? Class D... From the Wilson website page for the Alexia 2:Measurements Sensitivity 89 dB @ 1 watt @ 1 meter @ 1 kHz Nominal Impedance 4 ohms / minimum 2.54 ohms @ 85 Hz Minimum Amplifier Power 20 watts per channel Frequency Response 19 Hz – 32 kHz +/- 3 dB Ro... | |
| Best sub for music, How important is the amplifier in a system of subs? Almost any solid state amp made in the last 30-40 years has enough feedback to play the bass right (that's why solid state has always been known for good bass - good mids and highs? -that's anoth... | |
| Low-sensitivity speakers — What's special about them? Judging by this thread I'd say low sensitivity speakers have the advantage of not having an hysterical cult following that refuses to accept that what is most important to them isn't necessarily what is most important to everyone. A bit of inn... | |
| Best sub for music, There is many that say 2 subs is the best way to go. Can someone explain this philosophy a bit more (simple terms preferred)? Yes. If the subs are asked to go above about 80Hz they will begin to attract attention to themselves. At this point you'... | |
| Is D for Dry? Class D... George goes on about this EPDR thing. But he's not clear on what the impact will be on a class D amplifier other than saying that they won't drive it.Almost any class D amp made today has an output impedance that is often a good order of magnitude... |