atmasphere
Responses from atmasphere
| Not enough power what does it sound like? +1 shadorne got it right with a minimum of words.In addition, if a solid state amp is used, your tweeter may be at risk. A classic symptom of an underpowered system employing a solid state amplifier is fried tweeters. | |
| Low power tube amp for Sonus Faber? A lot will depend on your room size and listening habits.The speaker efficiency is about 88 or 89 db 1 watt/1 meter; on paper the speaker is rated with the sensitivity spec of 91 db. But because its nominally 4 ohms, this means that the voltage in... | |
| MAC Autoformers? @bifwynne , Well, since you asked, the answer is ’distortion vs actual frequency response’.All amps make distortion. Some distortions (IMD and higher ordered harmonic distortion) are more audible than others. Of the two mentioned, the latter is wh... | |
| Is there actually a difference? ^^The specs on the amp appear to be misleading. If it were really capable of 150Amps at any time, at the very least it would be making 22,000 watts or more!Constant current mode involves using current feedback rather that voltage feedback, and wil... | |
| Autoformer vs Speaker impedance Curve @ramtubesHello Roger, welcome to the forum. Thanks for your posts!We used to make an autoformer we called the Z-Music autoformer, which had taps for 4,3,2 and 1 ohm loads. With it, Steven Stone of TAS was able to listen to his Apogee Full Range lo... | |
| Autoformer vs Speaker impedance Curve @73max Just for the record, I've nothing to gain if you buy a Mac with an autoformer in it :) However, you if you can find a set of ZEROs (which, so far as I know, are the only outboard autoformers available for this task), I think its a very go... | |
| The 'tube-transistor' enigma by MC carts? @chakster I stand corrected; thanks for posting that link. I've had more than one metallurgist tell me that while 6Ns metals exist, the wire from them isn't actually 6Ns, although it gets called that. Since I do EE work, I went with their expertis... | |
| Tri-Planar Vll "SE Upgrade" @atmasphere the two discs you cut, are those available? IF I never hear the cannons again it will be toooooooooo soon....Some of the LPs we cut are on the Nero's Neptune label. The LP I use for reference was not mastered by us- that was done at th... | |
| The 'tube-transistor' enigma by MC carts? @chakster Just so you know, 6Nines copper wire does not exist. The best anyone has done is 5Nines and that claim seems highly suspect! Another way to look at this is the wire might be extruded from 6Nines copper, but once extruded it won't be 6N a... | |
| MAC Autoformers? @bifwynne I run into that too- we make OTLs as you know, but there are speakers out there that on paper would seem to be too difficult a load, but in practice work out just fine with our amps. So your experience does not surprise me in the least. ... | |
| Autoformer vs Speaker impedance Curve @73max The amount of feedback is usually given in the spec sheet.Bubble still up, your having illusions, or didn’t do your homework.Really?? Your prior statement which I quoted suggested that you don't understand how feedback works. And here you a... | |
| MAC Autoformers? So here is my question. What is happening electrically if there is an impedance mismatch? Is the amp producing distortion if there is an impedance deviation from 3000 ohms? If so, does having larger wattage and power supply capabilities amel... | |
| Mytek slams Hypex in Stereophile Amp Review Not if there's a -50'-60' degree negative phase shift also at 3ohms, then the amp could be looking at nearer 1ohm.Not exactly how this works, but yes, large phase shifts mean high currents near zero volts. Hard for most amps. Would be nice if we... | |
| Tube Pre-Amp, vs Solid State with Tone Controls/EQ to take edge off the top end? The brightness on top is distortion (trace amounts of higher ordered harmonics to which the ear is keenly sensitive). Tone controls won't fix it.Tube preamps make less of this distortion than solid state. For this reason a good tube preamp can ton... | |
| Autoformer vs Speaker impedance Curve This statement ignores just how much loop feedback is needed to fully compensate for this sort of thing. We all know what too much feedback has the reputation to sound like.20 db is plenty. The problem area with feedback is **moderate amounts** ... |