atmasphere
Responses from atmasphere
| Has anyone switched from Class AB/A to Class D? Was it better? Was it worse? in my 40y + sound works I haven’t seen such speaker, with purely resistive load (2/4/6/8/12/16)! In order to design output filter properly, we need to take complex model of loading, including variety of speaker cables, DC protection relay ckt, spe... | |
| New preamplifier - Backert Rhumba Extreme, Aesthetix Calypso Signature, Ayre KX5 Twenty if I recall correctly if you make any volume adjustments while watching a “movie” the entire system does not stay “in sync”. @dotto81 IIRC the volume of the home theater processor is controlled by a remote. It feeds that signal to the preamp. If... | |
| New preamplifier - Backert Rhumba Extreme, Aesthetix Calypso Signature, Ayre KX5 Twenty I sent an email to LTA asking for recommendations for a work around to the HT bypass shortcoming. @dotto81 The solution is very simple. Find out what volume control setting satisfies the home theater setup. Use that setting when using the home ... | |
| Has anyone switched from Class AB/A to Class D? Was it better? Was it worse? @westcoastaudiophile You might try the AGD Audion, one of the Orchard Audio amps or one of ours. WRT to the analog filter, its job is to remove the switching artifacts that occur at the switching frequency. What is left will be a sine wave called... | |
| SUT Interconnects Curious how one measures capacitance of an interconnect? @rsf507 By using a meter which measures capacitance. You treat one connection as one lead of a capacitor and the other connection (perhaps the shield) as the other lead of a capacitor. | |
| New preamplifier - Backert Rhumba Extreme, Aesthetix Calypso Signature, Ayre KX5 Twenty I listen to a wide variety of music from Jazz to Blues. Classical has been finding its way more into my rotation. @dotto81 Your taste in music really should have no bearing on the choice of preamp! The electronics do not care what the genre is... | |
| Has anyone switched from Class AB/A to Class D? Was it better? Was it worse? You may dial 500mW output @ 1kHz sine on any D class and A class amp and compare waveforms to understand D class problems better! @westcoastaudiophile Actually there are a few class D amps that have a better first Watt than a good number of cla... | |
| Has anyone switched from Class AB/A to Class D? Was it better? Was it worse? But tubes are not something I hear and can easily go to a class D system unless heat or space is the consideration. A preference for tubes is in a class by itself. The differences are easily distinguishable in a blind test. SS v tubes, if you... | |
| Class d amplification Class D cannot outperform a great AB amp. @vinylshadow That was probably true a few years back. But these days it isn't by any metric you might find important (imaging, depth, smoothness, musiocality, distortion, etc). I heard a class D at AX... | |
| Stereo to mono bridge/phase inverter for AVA ST70 amplifier I have 2 AVA ST70 amplifiers that I want to use as mono. @rommel If the ST70s have the mono/stereo switch, put them in mono. Then parallel the outputs by connecting the 16 Ohms together if you are using 8 Ohm speakers, or the 8 Ohm taps togeth... | |
| Experience with Downfiring Subwoofer Bass is basically omnidirectional so doesn't matter if down firing, or standard front firing. the bass will radiate in all directions. @kofibaffour This isn't exactly true. What is true is by the time your ear can sort out what bass note is bei... | |
| Tube Pre/ Class D Amp - Who has done it? @erik_squires The seemingly consistent feature among previous generations of Class D amps has been relatively low input impedance. FWIW the input impedance of our class D amps is 100K single-ended or balanced. Anything can drive them. | |
| 10dB resonant peak at 40Hz You are using a subwoofer to break up the 40Hz standing wave produced by the loudspeaker? Not to produce bass itself? @cdc Yes. | |
| GaN FET Amps vs. Traditional Class D Amps They are often described as having a more natural sound due to their minimal feedback requirements, which helps avoid harshness @mapman This bit is nonsense, just so you know. The use of GaNFETs has nothing to do with how much feedback is or is... | |
| Anyone else constantly curious about amps? A pet project of mine is the restoration of a Nobles NS-130 amp. I've had two of these in the past (in much better shape). This one is going to get a complete rebuild after I take it completely apart to refinish the chassis. Of all the EL84-based... |