Turn an altoids can into an outstanding headphones amp. Cmoy amp kit a diy headphone amplifier kit headphonesty. Electronics projects diy electronics zelt camping altoids tins mint tins altered tins ways to recycle ex machina tin boxes. Portable headphone amp usb dac headphone amplifier pha. The jds labs cmoy bb headphone amps are conveniently installed in an altoids or blank tin that makes for a durable, portable case. Weve seen some pretty cool amplifiers over the years but this one made out of an altoids mint tin is literally a breath of fresh air. Altoids pocket guitar headphone amp with speaker volume control gain muscle man mint tin pocket guitar amp headphone amp amp w by hesslerk speaker in an altoids box your place to buy and sell all things handmade this is insane. Headphone amplifier is small enough to fit in altoids tin box, and thanks to low power consumption may be supplied from a single 9v battery. Aug 03, 2001 that was a very kind gesture, and a very generous gift.
Our pcbs are done just over the hill from us, or done in norcal. Switched off, your original audio signal is amplified. I love making beeps and bloops with the arduino pitches library, but sometimes archaic 8bit tunes just dont cut it. As the op amp directly drives headphones some care should be given when choosing an op amp, some op amps are not suitable for such low impedance loads and will result in poor performance. When you buy products through links across our site, we may earn an affiliate commission. Refusing to go back to the headphone jack, i took it as an opportunity to build another ampperhaps one a little more advanced. As highlighted before, a headphone amp can be used with a smartphone or computer, however considering headphone amps are getting better and better most people wont be able to tell the difference between using a headphone amp and not using one. Ce hansen designed a pcb layout based on a circuit by jasmin levallois which is a cmoyop amp gain stage at the front, incorporates the meier crossfeed circuit in the middle, and has an op amp at the output. It makes a good judge of headphone quality as well, since higher quality speakers use energy more efficiently and play louder than others. Mar 24, 2020 altoids headphone amp pdf why use a headphone amplifier. This is where you can turn to the cmoy headphone amplifier. This new cmoy incorporates moreover bassboost circuit and constant current charger for 9v battery. Altoids headphone amp here we have another simple lm386 amp i made, this one made in the style of all the altoids tin amps out there, though i used an aluminum gift card case instead of an actual altoids tin.
The default objective2 assembly places the power jack at the front of the enclosure. Refusing to go back to the headphone jack, i took it as an opportunity to build another amp perhaps one a little more advanced. Diy altoids tin headphone amp electronics projects diy. The headphone amplifier is designed around single or dualchannel op amps such as burrbrown s opa or opapa, however, a wide hsadphone of op amps have been successfully implemented. Cmoy headphone amplifier cmoy amp cmoy is a term derived from its inventor, mr. This is a depository for various audio designs and projects mostly tube that ive put in the public domain, as well as additional info to support magazine articles that ive written, and an evergrowing amount of technical data archives relating to vintage and tube audio. You do realize all speakers no matter how big or small need amps, right. Mar 27, 2017 cmoy headphone amplifier cmoy amp cmoy is a term derived from its inventor, mr. This article is written for the beginner diyer, though if you just want a guide to building this particular amp, you can skip to the parts or assembly sections. The headphone amplifier is designed around single or dualchannel opamps such as burrbrown s opa or opapa, however, a wide hsadphone of opamps have been successfully implemented. Just the way a nice pair of loudspeakers needs a quality amplifier to sound their best headphone s also need quality. This project can be completed in one sitting, depending on how long that sitting is and how precise you make everything. How to build the cmoy pocket amplifier tangentsoft. Main feature is that the new pcb fits exactly to the classic altoids tincan.
In all, it took over 25 hours to build the same amplifier many others before me had built over the previous eight years. Minttin amp pocket amplifier punches up headphones. More details on making the mint tin amp can be found here check out other altoids tin. Cmoy mint tin headphone amplifier diy audio projects. They were made by a music fan who designed and constructed the whole setup himself, before posting the process on imgur. Jun 07, 2019 amazon rapids fun stories for kids on the go. It was where he published the famous article a pocket headphone amplifier. Chu moy designed a very popular headphone amplifier thats easy to build, and it can be built small enough to fit in a. Altoids box headphone amp o2 objective 2 more pictures at the end of the document. Whether you want your robot to terrify your enemies with a demonic synthetic voice, you just need a pocket boom box on the go, or you want to a miniature guitar amp, a simple lm386 amplifier can crank up those signals loud enough to play through any speaker. No more hiss with my new o2 headphone amp from jdslabs. The article was the blueprint to build an affordable and portable amplifier. I would like to try one in a altoids mini tin if i can find speakers small enough.
A cmoy is a pocket headphone amplifier originally designed by pow chu moy on the. You may have seen the diy altoids amp somewhere else, but this one is easier than the other plans i have seen. This usb digitaltoanalog converter dac and headphone amplifier takes over from your pc or mobile devices builtin amp. Ampoid portable mp3 amp and speaker altoids bluered reverb. Altoids headphone amp pdf why use a headphone amplifier. Nwavguy used two 9volt batteries, a 200ma led, a dc supply option, and an added gain switch.
How to solder together a headphone amp with an altoids can. You can use this circuit in any project where you need to amplify sound. It can be used to drive demanding headphones, produce thunderous volumes and most importantly, it sounds excellent. Which altoids tin looks best for a cmoy headphone amp. Diy easy altoids smalls speaker with amplifier circuit. So i got a great new pair of headphones over the holidays last year, and so far theyve served me well, but lately ive been trying to figure out how i can get the most out of the new cans. Jds labs cmoybb curiously strong altoids headphone amp. Mar 16, 2014 mar 16, 2014 altoids headphone amp here we have another simple lm386 amp i made, this one made in the style of all the altoids tin amps out there, though i used an aluminum gift card case instead of an actual altoids tin. Adding to the ranks of great projects like the mouse and headphone amp, is ken kirkpatricks mini speakers. Create mini speakers out of an altoids tin apartment therapy. Every headphone jack is amplified unless its a lineout in which case theres other issues, a quality headphone amp can improve the sound. The cmoy headphone amplifier can be fit into altoids tins and headpgone often be found for sale on ebay by searching for cmoy. The kit includes all the parts needed to build the amp including detailed assembly instructions. Ill be back for any possible audio altpids daniel w.
The input has been optimised for passive piezo transducers passive pickups but the pre amp is suitable for acoustic, electric and bass guitars also. I really like this one because it is so simple, sturdy and portable. He was the founder of the first headphone forum, headwize now defunct. The signal handling is based largely on the nwavguys schematic for his objective 2 headphone amp design. Power jack will be mounted at right, rear side of enclosure. Now an audio amp inside an altoids tin isnt exactly a new concept, but dino takes the time to discuss the. Need a nice quality battery powered amp but love to assemble them yourself. Thanks go to warren young for the original article in make. Aug 18, 2016 for these reasons, i think that the cmoy pocket amplifier is an ideal project to get started in audio diy. Ampoid portable mp3 amp and speaker altoids bluered. No matter where in the world you are, these guys will take great care of you. Hacker dino segovis is back again with the fifth installment in his hack a week series. This time around he has put together a 12 watt audio amplifier that would make for a great weekend. Aug 03, 2001 the amp will fit fine in an altoids tin or even a 9v batteryfilm container see skippys amp though you can do more interesting things with the layout and topology if you use blank boards rather than ce hansens boards.
By designed and built in california this is what we mean. Jan 03, 2014 if youd like to see more pics, ive posted the build process on. Build a powerful pocket amplifier for your headphones and put it in a curiously strong minty case. The classic tin has inspired many a diy, and while looking online for more creative altoids projects we stumbled upon this project from readymades archives. Audiophiles out there know about some great and expensive headphone amps that really help you get the most out. Original digital audio including highresolution audio is processed by the pha3, creating a dramatically superior soundstage for enhanced listening. Aug 25, 2008 build a pocket amplifier for your headphones and put it in a curiously strong minty case. No matter what youre looking for or where you are in the world, our global marketplace of sellers can help you find unique and affordable options. Just the way a nice pair of loudspeakers needs a quality amplifier to sound their best headphones also need quality amplification to sound their best.
If you want to try a simple compactron audio amp and have a little experience rolling your own with tubes this is a very good place to start. Make a diy headphone amp and of course, put it in a mintcandysourtin thanks macaba. As the opamp directly drives headphones some care should be given when choosing an opamp, some opamps are not suitable for such low impedance loads and will result in poor performance. May 01, 2011 since it is so versatile, he used it as the centerpiece of his altoids tin amplifier. I would choose curiously strong peppermint instead. How to build the apheared 47 headphone amplifier for grado. Apheareds 47 mod is the basic opamp gain stage that we all call a cmoy but with parallelled op amps which is what makes it so. To download mint tin amp mp4 click here or subscribe in itunes. Sadly, i fried the opamp in the cmoy the little chip inside that does all the work after listening to it for 6 months. The output power coming from most devices is inadequate to power larger hifi headphones. Jds labss success is due to cmoybbs legendary bass boost switch. You can use it as a headphone preamp, a portable guitar amp, an miniature mp3 player speaker, or even a synthetic robot voice box using the speakjet if you are going to house your amplifier in a tin, be sure to use electrical tape or heavy card stock to insulate the circuit from the metal bottom. Sadly, i fried the op amp in the cmoy the little chip inside that does all the work after listening to it for 6 months. Learn to solder by building yourself the most excellent chu moy headphone amp.
The completed altoids mint tin headphone amp after being fitted together. Etsy is the home to thousands of handmade, vintage, and oneofakind products and gifts related to your search. Spl and impedance graph given in the instructions manual. An altoids pocket guitar amp headphone with speaker volume control gain in turquoise blue tin. It sounds great but cheap enough to give away as holiday stocking stuffers. This is an article about my new pcb design for cmoy headphone amplifier. Jun 07, 2019 headphone amplifier is small enough to fit in altoids tin box, and thanks to low power consumption may be supplied from a single 9v battery. Mar 16, 2014 one last thing that i like that makes a headphone pocket amp more fun than a speaker amp is that you can use whatever headphones or earbuds you like and it gives a different tone with each one. The cmoy is a very popular and easy to build headphone amplifier that can be fit into a mint tin. All you need is a soldering iron, solder, and what ever enclosure you want to mount it in altoids tin, etc. Mar 01, 2010 this is an article about my new pcb design for cmoy headphone amplifier. Altoids pocket guitar headphone mp3 amp with speaker.
This guy makes headphone amps from altoids mint tins. Jan 19, 2017 of course, as mentioned, a headphone amp can also improve quality. So here are the pics of the wonderful altoids amp jmt made for me. Thanks go to warren young for the original article in. You can use it as a headphone preamp, a portable guitar amp, an miniature mp3 player speaker, or even a synthetic robot voice box using the speakjet. Altoids charger for less than twenty bucks, you can make a portable battery pack for your laptop. As the op amp directly drives headphones some care should be given when choosing an op amp, some opamps are not suitable for such low impedance loads and will result in poor performance.
A simple 1w audio amp built on an altoids box, with a second altoids box housing the hv power supply. Connect an audio source to the input jack using a 3. Adding to the ranks of great projects like the mouse and headphone amp, is. Chu moy designed a very popular headphone amplifier thats easy to build, and it can be built small enough to fit in a pocket, power supply and all.
Chu moy designed a very popular headphone amplifier thats easy to build, and it can be built. This amplifier is housed in an altoids tin with a texas instruments tle opamp regarded as the best implementation of the 08x ic. Jds labs objective2 headphone amplifier amplifiers. Although a lot of cmoy headphone amplifiers are designed to be portable this one is. The whammy classa headphone amplifier wayne colburn, the genius at pass labs who for the last 25 years has designed essentially all the things that arent speaker amplifiers, wanted to make a fun, highperformance, fantasticsounding, classa, diy headphone amp for this community. For a more indepth article on amplifier, you should read external dac. Build a pocket amplifier for your headphones and put it in a curiously strong minty case. It is standard cmoy schematic, noninverting amplifier with gain from wikipedia, the free encyclopedia.
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