atmasphere
Responses from atmasphere
| Question about high current amps versus "not high current amps" @thecarpathian 'Output devices' means components in the output section of the amplifier; usually power transistors mounted to a heatsink. We make both class D amps and tube power amps so in their cases either GaNFETs or power tubes. | |
| Question about high current amps versus "not high current amps" so what might be the instantaneous currents provided in music reproduction, even for a few milliseconds? @mclinnguy The instantaneous power will be within the output power limit of the circuit. Therefore so will the current (else the amp fails... | |
| Question about high current amps versus "not high current amps" I’ve always thought the higher capacitance reserve an amplifier has, the more amps it can deliver when needed. This isn’t correct? @thecarpathian That isn't correct. By that metric our MA-2 can deliver more amps that most solid state amps of th... | |
| Question about high current amps versus "not high current amps" @mclinnguy This statement is false: A Coda 16 has 280,000 uF of capacitance and can deliver 100 amps of current, per channel. Here’s why. As @immatthewj points out, the power the amp makes is equal to the current times Voltage. The actual Powe... | |
| Question about loading with an SUT I use five different carts and use one SUT currently wired at 1:10. @theflattire If you hear differences between the cartridges its likely got more to do with loading the transformer correctly than anything else. @adam8179 That method I mentio... | |
| So I Just Bought a Cassette Deck A checkout shouldn't be expensive. If sorting out the power supply I'd expect $200 might be pretty close. | |
| Your journey with lower-watt tube amps -- Can a kit be good enough? Do you think the issue is not voltage swing of driver but the current and power it should drive on capacitive load. @alexberger Generally speaking, yes. Specifically you want to be able to swing the Voltage without distortion. To do that the so... | |
| So I Just Bought a Cassette Deck Deck was just serviced by the previous owner, @jaybe If you can, ask the previous owner if the power supply filter capacitors were replaced. Any cassette machine is old enough these days that these parts should be replaced if the machine is to ... | |
| Question about loading with an SUT I’m wondering if there would really be much of a difference if I had an SUT with the exact ratio and loading that is specified rather than "getting close?" @adam8179 Transformers will ’ring’ (distort) if insufficiently loaded and will roll off ... | |
| Who positions their speakers straight ahead (zero tow in) and why. In both cases I ended up with tweeters on the inside and zero toe in. I like the more immersive soundstage I get with zero toe in. I sacrifice a little of the lock in for the center image. This can work fine with some speakers if there's no sid... | |
| Your journey with lower-watt tube amps -- Can a kit be good enough? @larryi Decades ago I put myself through engineering school by working as a repair technician at Allied Radio Shack. I saw equipment that clearly was not built with the ability to easily repair it in mind. Electronic components fail no matter how ... | |
| How many subs? the drive rack was not used for purpose, it was what it could do. I wanted a balanced product that could give delays up to 10 ms (not including latency). When the Acoustic Engineer said 3 ms delay there and 9 ms I got someone else to program it ... | |
| What contributes most to a change in how an amplifier sounds? What is it about the transformer?? What is it about the wiring? What is it about the chassis? What is it about the chips? What is it about the capacitors? What is it about the power of the amplifier? etc @emergingsoul Which transformer- the power... | |
| Your journey with lower-watt tube amps -- Can a kit be good enough? @alexberger The problem of 300B they need a driver with 150 volt peak to peak voltage swing. For 845 you need much more voltage swing. If you direct-couple with a CF that's no problem at all! Here's something to consider: The grid of triod... | |
| Your journey with lower-watt tube amps -- Can a kit be good enough? 845 is impossible to drive without IT! You get more driver tube distortions than 845 output stage distortions. You also can't get a good deep and fast bass. @alexberger This statement is entirely false (and is what IT manufacturers would like y... |