It's certainly being done in HiFi and already is the norm for consumer and pro-audio but many audiophiles equate large transformers and heft to quality so there is some risk for a manufacturer to take that leap as well since it's marketable. The cooling requirements of the amplifier section dont change with a more efficient power supply so there are not really any cost saving opportunities there.īy the way, why don't more non-class-D amps modulate or switch power rails at different power levels? Subreddit's theme is /r/Minimaluminiumalism. Moderators may at their discretion remove content that fits better in one of the above subreddits. /r/Cd_Collectors - Talking About CD's and music in general./r/audiorepair - Repair help for audio gear./r/BudgetAudiophile - for restricted budget hifi./r/diyaudio - Do-It-Yourself Audio - also /r/diytubes and /r/diysound./r/audioengineering - Pro audio/engineering./r/audiophilemusic - Music for audiophiles./r/StereoAdvice - Home HiFi Shopping Advice./r/headphones - Headphones and portable Audio. If you made a post to /r/audiophile that is in accordance with our rules as listed above, and it doesn't seem to appear on the front page, please message the moderators. Or someone else's if it gives audiophiles "The fizz" Content that facilitates discussion about audio quality.We may further remove posts that are deemed off-topic, low-effort, or better suited to other subreddits. Moderators also reserve the right to remove other content that fits better in other subreddits.Īdditionally, sitewide rules and reddiquette applies. No off-topic or headphone content: Post portable audio related content in /r/headphones.No selling or buying: Please use /r/AVExchange.Disallowed content: affiliate links, links to affiliate farms, pirated content, NSFW/NSFL content, market research, surveys, sweepstakes, giveaways, spam or self promotion.The comment does not need to be exhaustive, but should strive to give enough information to start the discussion. Image posts: Image posts must be accompanied by a comment with impressions or details that add value to the post.Ask troubleshooting and setup questions in the Shopping and Setup Help Desk Requests for troubleshooting and setup help must be made in the dedicated Shopping and Setup Help Desk instead of a new post.Ask purchase and shopping questions in the Shopping and Setup Help Desk: Requests for product opinions, comparisons, and general purchase advice must be made in r/StereoAdvice or the dedicated Shopping and Setup Help Desk instead of a new post.Be most excellent towards your fellow redditors: And by "be most excellent" we mean no personal attacks, threats, bullying, trolling, baiting, flaming, hate speech, racism, sexism, gatekeeping, or other behavior that makes humanity look like scum.Our primary goal is insightful discussion of home audio equipment, sources, music, and concepts. R/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music.There are a few small schematic drawing errors in the power stage- ignore them, they don't translate to the actual amplifier. Schematic is attached, VAS is virtually a complete amplifier on its own. It uses a most interesting design and I wonder how it differs or is similar to other systems like the Benchmark? Perhaps you can comment on the topology and any similarities, this amplifier has always intrigued me (I have few of them) and apparently caused more than a few techs and designers to scratch their heads back in the day. That needed 150MHz fT transistors in the front end/driver and 35MHz output stages and it was made in 1983! Other feedforward/'non-nfb'/direct distortion cancelling power amplifiers from the past specified huge numbers for slew rate and not just internal. Scott, the post above simply asked whether the AHB-2 rated amplifier slew rate of 16V/uS was "sluggish".Ĭlearly, the 16V/uS quoted is surely an outer loop (overall) worst case number for the AHB-2 amplifier as a whole, wouldn't you say? Wouldn't you consider 16V/uS overall (line in to speaker out) sufficient at large outputs to reproduce content in the audible bandwidth without slew-induced distortion rearing its head?
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