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Buffer to Gain Stage
Hi guys, Is it possible to change this buffer to have about 12db gain without sacrificing sonics. One channel shown.
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Input stage + current mirror and VAS analysis.
I did some measurements of this circuit with some changes. The VAS stage is loaded by 1k to just show how it works together with the current mirror and the input stage. The table over the measurements....
View ArticleSomething to lighten the mood
So I kick off early today like many are doing during this C19 crisis and I thought I'd do a little housework before the Mrs. came home. I started making the bed and I noticed a pillow was missing. I...
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low cost ADAU1452 China board...
hello, it's Andrea here, long time lurker and appreciating a lot this community. this is my first post, just registered to signal a China board i've not seen described here. of course, i've not any...
View ArticleDaphile - Audiophile Music Server & Player OS
Call for testers! Daphile is an audiophile class music server & player OS – targeted to dedicated headless PC. Features Headless music server OS Bitperfect and gapless playback of common audio...
View ArticleCovers that are arguably better than the originals:
She Blinded Me With Science Bill Parsons (orig Thomas Dolby) Sweet Jane Cowboy Junkies (orig Velvet Underground) Any others come to mind? (Thanks to Fred D. for bringing this to the top of my insomniac...
View ArticleIlluminated stainless steel push button power switches - what LED color &...
Just curious to know what other amplifier builders think about the various illuminated push button power switch options. What LED color(s) do you prefer and why? What action do you prefer, momentary or...
View Article8" midrange vs. 4" midrange (besides the obvious)
Hi, Obviously a 8" midrange can be louder (and I'm guessing less harsh) than a 4" midrange, but how might the "speed/accuracy" (or transient response), especially in the high-mids, compare...
View ArticlePlease help me understand the purpose of such a filter at DAC line output
Hi ! It is something about impedance matching or what else ? Capacitors value are so small that my multimeter shows 0.01nF that propably be an error, but it measures values about 5-10nF very well...
View ArticleL20.5 AP SYS Test data My design
I designed this amplifier. The original page is lost. There are a lot of people asking for the parameters of my design. I re - update the web page. To facilitate their acquisition
View ArticleDiagnosing and repairing Vibe Slick a0 amp?
Hi everyone, So I just had my old vibe slick a0 amp die on me. I hadn't realised but it had been running at bridged 1ohm this whole time so honestly surprised it lasted this long. It is rated for...
View ArticleDoes distance between drivers really matter?
There are a lot of recommendations to keep the distance between speaker drive units as close to each other as possible, especially the drivers for higher frequency, because a point source configuration...
View ArticleQCC5125 - stop the audio after you pause the music
Good afternoon. After ordering a qcc5125 + es9038q2m + NE5532 board on aliexpress, a problem arose. In general, the board gives me good enough sound for me, but there is a nuance. After I stop the...
View ArticleCurrent limiting resistor - what wattage?
Not really audio related but I figured I will ask here. I have an AC motor that runs on 115V and draws 1.3A. I need to drop the voltage going to the motor (to slow it down) by using 10 Ohm wire wound...
View ArticleTaking a Perfectly Fine Power Supply and Overengineering It Just a Little
Having build the very capable F6 I was left wondering (more like fantasizing) about how I could improve this magnificent amplifier. Fortunately I'm not the first one here having this crazy ambition, so...
View ArticleThe 15 Song Album collection:
Hi to all, I just want to make a album for 15 songs time over 16 minutes. It's simple. Each user has to copy and paste adding only one song to the album so in the end it's 12 songs, one per user, and...
View ArticleQUAD ESL63 dust protection comparative testing
I think about some comparative testing of different materials for the ESL63 dust protection purpose. Background: Quite many posts in different threads are related to the dust protection film and it's...
View ArticlePainting speaker enclosures with "Musou black" paint, long term durability...
I'm building Scott Hinson's Multiple entry horns and one idea was to paint the primary horn flares with Musou black. The flare parts of the horn are mostly protected from direct contact, but I'm a bit...
View ArticleAtmos sucks. I have a better idea
I own 2 atmos avrs and find both disappointing. IMO, height sounds such as aircraft, birds, thunder, rain, wind, spacecraft, rocket and other height sounds should only come through height speakers....
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