arty_vandelay
Responses from arty_vandelay
| new GAN amplifier I think I just saw a pig fly over my house. | |
| new GAN amplifier A Class D amplifier is a "analog amplifier" with a two state (binary) output stage modulated by the output of a comparator that compares an analog signal with a reference waveform. Ultimately I guess it boils down to the definition of "analog", bu... | |
| new GAN amplifier I once made the class D > DSD analogy on another forum and was met with enormous hostility from the Class D faithful. The believers provide the missing bias. | |
| new GAN amplifier Like the Halcro Eclipse with its incredible specs; 110kg/250 pounds, 135,000 In line with laws of diminishing returns, but it is the best if you think least distortion = best. Distortion @ 100W into 4 ohms is on par with small signal performan... | |
| new GAN amplifier It's probably worth making the point that a person who owns a pair of Alexia's is probably driving them with a decent amplifier. Most, if not all high-end class A-AB designs are usually very over-engineered to avoid device failures and to be able ... | |
| new GAN amplifier Thanks George, my bad - typo. Typically, in "eng" speak impedance is expressed as a value with a phase angle (polar form) or real + reactive (rectangular form). EPDR is obviously a means of expressing power dissipated in the amplifier based on ins... | |
| new GAN amplifier EPRD isn't a term that's used in engineering circles, even if it's a more valid descriptor than than the invented term "RMS power".Any amplifier that relies heavily on NFB to present a low output impedance can be brought undone by a nasty capacit... | |
| new GAN amplifier All digital audio is built around the sampling theorem, not the other way round I wasn't singling out digital audio, but it's worth mentioning the use of oversampling to remove the necessity for analog brick wall filters in AD-DA conversions. C... | |
| new GAN amplifier >100kHz response? Some species of bats indeed can detect 200kHz but they can't hear the human range sounds.Then there is the question of transducers, I think I came across once a lab specimen that goes high ultrasonic. Then there is the prob... | |
| new GAN amplifier As for subjective perceptions of audio, to paraphrase the local classic, "there are many, me including, who like tubes best".Horses for courses. I don't care too much for tubes but I'm a fanatic for pristine treble, and that includes a ruler fla... | |
| new GAN amplifier A lower damping factor will, and especially in the case of the Alexia where one just has to look at the frequency response/impedance curve to see it, often correct peaks (valleys) in the frequency response. It is like a built in equalizer :-)And... | |
| new GAN amplifier Please compare data for your favorite top A/B amp U-LD Mk4, given by the creators at www.siliconchip.com.au (August 2015) and the newest D-class from Bruno Putzeys - Purifi 1ET400A (www.purifi-audio.com). Best to use third party measurements ... | |
| new GAN amplifier GaN are faster and present lower drive capacitance which theoretically allows for a higher switching frequency - which has encouraged many people including George. However, regardless of power device used efficiency is always inversely proportiona... | |
| Speakers under $50k that rival $200k+ speakers? The NS5000's are very nice. Very extended sweet treble and easy on the ear. Also, excellent transparency and micro dynamics. In one word, "refined". However, to my ears they slightly lack the macro dynamics of some of the competition at that price... | |
| Speakers under $50k that rival $200k+ speakers? The Persona 7H / 9H midband is excellent. Tonally more forward than B&W 800 / 802D3 in a side-by-side compare, but I would judge different rather than better, but dependent on genre of music. The big B&W's excel in casting a larger soundst... |