I have been in this hobby for a long time and I really enjoy great musical reproduction. When it’s done well it makes me smile a lot and I get lost in listening…well recently I had a purchase that makes this feeling and experience happen a lot! I had 24 amps in house at one time last year and...

Ok I finally got thru several days of being sick and under the weather but we finally got time to listen with the T4 in great detail! Tom Blanchard of Beezar Audio recently contacted me on Head-fi about some comments about his T3 torpedo para-feed headphone amp I made in a recent review. I got...

This is an update on a DIY amp I built several months ago. Pete Milletts "Butte" headphone amp. A very low cost simple amp with OPA552 high gain op amps (11X) that was easy to build and worked the first time. When first using the amp, there was a little noise heard at high volume settings...

Burson Bang Amplifier Hello, I just received a new amplifier from Burson. Its their very small dual mono Class AB power amp. Burson touts this as the worlds smallest dual mono Class AB power amp in the world. Its the same physical size as the Burson FUN headphone amplifier that I have, use...

I just finished this DIY project. HIGHLY RECOMMENDED. Posted here and rather re write it here is the link: https://www.head-fi.org/threads/mark-johnsons-t2-class-a-amplifier.908469/ Alex

I have build many, many DIY amps for headphones and have 10+ amps here to include several commercial amps, tube and solid state....so why build another headphone amp? Always looking for that special amp that really would remove that "veil"we all talk about, get new stuff and after a few weeks...

I have had the Burson Audio FUN amp in house for a few months now. It has been my go-to headphone amp for this time. I do have several other very good headphone amps like the Bottlehead Crack with Speedball and Bottlehead Mainline. I also have a Schitt Vahalla2 amp and several DIY SS versions...

I have had the Burson FUN amp in house for a week + now and its really caught my "ear"....really a great amp in this price range..and I have reviewed it elsewhere on this site. This Burson amp promotes OP Amp rolling! Burson supplies a allen wrench to take off the cover to "play" or swap out op...

Burson Audio FUN Well I have received from Burson Audio a new headphone amp to me. In the past I have reviewed Burson's Audio Cable + and Pro, and have always liked the Burson products. They seem to build some really well liked and well built headphone amplifiers. For people that like to play...

I asked this question in one of the Schitt threads and was told to come here and play. So here we are. I have a Schitt Bimby multibit and do not leave it on all the time. I don't really perceive any real world sonic differences when I leave it on for several hours vs 30 minutes. In some Schitt...

Many people spend lots of bucks and time searching for the end all of NOS tubes etc in there systems to find that very special almost "perfect" sound to them...we all have differing types of perfections...which make this pastime so unique. Many people just keep asking the same stuff over and...

Fathers day brought me a nice new DAC...Schiit's Bifrost Multibit or "Bimby". I am a die hard Beyer Headphone guy lately and have been looking for a great combination to make my T1 2nd gen play as best as possible. I have built many DIY amps looking to that special "one" and some are really...

AGDR has done it again and taken his new super Cmoy's design using the new TI OP1688 chip to the next level. He has added a second OP1688 to double the current capacity!!   I will be building on up next week and will be able to compare to the original cMoy and AGDR's new OP1688 cMoys!   Pix...

I just completed a new Cmoy amp using TI speciffically designed for headphones op amp the 1688. AGDR just designed a circuit based on the cmoy with TI 1688.   A mint-tin CMOY headphone amp like no other!  Uses the brand new Texas Instruments OPA1688 and (optionally) OPA1622 headphone driver...

Hello!   I have built several O2's.   A very special desktop type called the ODA, by AGDR over at diyaudio.com and now after going thru many other amps and headphones have built this new inverting type of headphone amp....similar to the O2 topology.   I have always wondered if the O2 had...

Hello,   I have been posting the O2 and ODAC thread about a new Objective Desktop Headphone amp I have just completed building. I think this new O2 derivative called the ODA deserves its own thread. So here it is.   I have been working with AGDR the designer of the ODA over at DIYAUDIO and...