atmasphere
Responses from atmasphere
| MAC Autoformers? But what about speakers with impedance swings all over the place, from 3 ohms to off the charts well at well over 20 ohms like 802D3s (nominally 8ohms). It’s swings like this that tax the best tube amps with their transformer outputs. How, exac... | |
| Autoformer vs Speaker impedance Curve What isn’t addressed is, what happens “electrically and sonically” with Autoformers when 8 ohm speakers, like 802D3s, dip down to 3 ohms or exceed 20 ohms??? With typical output transformers (common with tube amps) speakers with wild impedance swi... | |
| Class D is just Dandy! 1 - Direct Digital@erik_squires FWIW the phrase above is a marketing thing. It means that the amp has a DAC as its input, but the amp itself is actually analog, like all class D amps are. IMO/IME marketing terms like this tend to confuse the marke... | |
| Harman ST-5 Turntable RabcoTonearm and Cart I usually don't strip the wires used in an arm unless its Teflon and hardly anyone uses that! The heat of the iron is usually enough. I recommend SN63 as it will give you a better solderjoint than SN60! Tin the wires and connector first then tack ... | |
| Harman ST-5 Turntable RabcoTonearm and Cart As I recall that arm used a cartridge similar to a P-mount. The cartridge was probably sheared off in an accident and the 'table left for dead. Is the connector still intact? | |
| Soulution preamp DC-offset protection @katfnc I am now suspicious that this unit may be direct-coupled from input to output.If that is so, it could be that the source is the problem and not the preamp. Can you try a different source (cell phone for example) and see if it still misbeh... | |
| Electron Kinetics Eagle 2 Repair Help Years ago I fixed one of those that the owner managed to blow up. If its just filter caps and the like then its probably not that hard to sort out. Any independent shop (i.e. not Best Buy or the like) that can fix consumer electronics should be ab... | |
| Who makes the highest quality tube amps? Lets go with highest quality being equated to longevity.Any Dyna made in the old days will need refurbishment to sound right and be reliable; otherwise the power transformer is at risk. Dynaco went out of business in 1978; I bought one of their la... | |
| Soulution preamp DC-offset protection when I had the Spectral preamp I was simply unaware of this thing just because the Spectral doesn’t have this kind of protection Probably because it didn't need it. We don't have a protection circuit on our direct-coupled output either; in 29 ye... | |
| Foil damping tape as a tonearm tube wrap? The Sumiko Analog Survival Kit used a thin tape to be wound tightly around an arm tube slightly overlapping the winds. It was not heavy.The Analog Survival Kit was the brainchild of Warren Ghel, currently employed at ARC. He developed this about... | |
| Soulution preamp DC-offset protection @katfnc I would contact the manufacturer. I can't imagine why the circuit would need something like that, but that's me. | |
| Soulution preamp DC-offset protection First, the DC can't come from the recordings!!We make a preamp with a DC coupled output. Such a circuit needs something called a 'servo' to correct the DC voltage so that the DC output of the preamp is always at zero volts.By any chance does the c... | |
| Audio Note : amp and source matching xrayz is correct about the impedances involved.The speaker is a little on the low side as far as efficiency is concerned. Another 6 db would be really helpful in most rooms, but a lot depends on how lively your room is and your personal listening ... | |
| Quad ESL-63 and low-powered amps; Sun Audio, Atma Atmasphere, do you think the differences could be measured someday, but we have not figured it out yet?We can measure them now, but we don't go about it right. Essentially what is needed is a weighting system; one that applies more importance to t... | |
| Quad ESL-63 and low-powered amps; Sun Audio, Atma So as long as a well designed amplifier is not driven into clipping it should sound the same as another one not driven into clipping.This is a pretty big assumption. What is meant by ’well designed amplifier’?Designers have different goals so thei... |