Hi all, Haven't been to HeadFi for quite a while, nice to meet you again :). Recently I became interested in portable USB-C audio, particularly in those ugly(well...) dongles that provide a 3.5mm jack. To start with, I thought of them as passive adapters: somehow the idea of a DAC, amp, and...

Hello guys, What software do you use for drawing neat,clean,good-for-publishing schematics?I mean schematics for textbooks and websites.I know I should get drawing packages for LATEX,but I'm sure there's something simpler out there. I tried several drawing applications - Xcircuit,Fluid...

I've read that turn-off dc spikes of an amp can damage your headphones.I've measured mine,and highest i could get was 30 mv.Should I be worried ?

The KRK KNS-8400     I see this headphone is getting some well-deserved popularity here.I bought mine absolutely blindly(I like KRK monitors) to be honest.Currently I'm very satisfied.   Reviews on Head-Fi...

I want ot make a 24/96 USB DAC,so PCM2704 is not suitable,since it gives me only 16/48. Recommend me a chip please

I've played some piano when I was a kid,so I want to go back to this.I' still concerned on should I get just a MIDI controller or a digital piano.I'm looking for the most realistic piano sound and feel(weighted action I guess?).61 keys minimum.Mostly classic(Beethoven,Bach).I know there are some...

Recommend me some new albums based on what's in my collection now:   Classical: Albinoni,Bach,Haydn,Strauss II,Tchaikovsky,Pavarotti,Stravinsky   Jazz: Spyro Gyra,Billy Cobham,David Sanborn,Miles Davis,Dave Brubeck   Electronic: Massive Attack,Bjork,Tricky   That's 55...

Hi,I've got some BUF634s,and I want to make an amp with them.Is this schematic ok ?     Should I bias the buffer in class A with the 150-ohm resistor,or it's unnecessary?

I don't think age actually matters,but I'm curious.It's a fun hobby.We mean audio DIY,of course,and add some background. For me it was at 14,me and some friends at school build a 2 m. tall speaker out of plywood,and inserted 10 transducers into it.Later,trying to build a metal detector was a...

...and I have to switch it manually from the driver each time.It was automatic in XP.Someone help ? Thanks!

Well,it won't blast your ears,but it's loud enough to leave the pot at 1/3.The RMAA results actually surprised me(mind that this is pocket amp). Take a look: No load: Load 32 ohm headphones: Subjective sound is good too.So,not bad as a headphone amp. Here's a pic of the thing...

OK,I've build a simple pocket headphone amp.It's schematic is like the MINI3,except for virtual ground with two BJTs instead of opamp.Also,I'm using the LM4562. I've been using it for some days,so the 9v battery is about it's half or less...gives 7.8v.I've bought a new one for the sake of better...

Well,recently I bought the M-Audio 2496 audiocard for recording and listening purposes.Sounds good,it's very detailed and neutral.I like it very much,but It's kinda wierd though,because it's released in 2001.That makes 10 years.I mean,that's an era in computer world.It's almost like vintage...

Well,I got an M-Audio Audiophile 2496 audio card.I like it very much,it records well and the sound is dead neutral(likey that). I'm thinking of some modding now.What about the NE5532 on the output?Is it dual supplied?If so,the two output caps I see are unnecessary,aren't they?Can I just bypass...

I've bought some CDs to record,they are manufactured by Taiyo Yuden.Never heard that brand before,but I like the gold surface design,also they are stated "For Audio".What does this mean? Is there any difference between regular and "Audio" CD's ? Taiyo Yuden also have discs stated "For...

Could you indicate some dramatic Cello & Violin recordings...something like Janos Starker's Kodaly...it's incredible.Thanks

I want to measure the frequency response of my amp.I played different samples 30Hz to 16kHz from my pc.I've measured the voltage swing on each one with my multimeter and added the data to excel worksheet.So is this measuring adequate ?If not,how this should be done ?(The multimeter can't measure...