Headphone amplifier TPA6120 - RS Headamp 2016
Listening to music on large headphones connected directly to the sound card, I often lacked power in them. I decided to try to construct a fairly simple amplifier based on the Noise Reducer kit - Headamp 2016 on the TPA6120 chip.
This is my first construction, which I managed to complete fully. It was created for about half a year, including during the waiting time for various parts that traveled from China (housing), and the lack of free time to "push" it forward. I also hunted for small luck, but eventually I ended up buying a new one from Toroidy.pl. The amplifier kit itself is very well described on the RS channel, so I will not write here.
All holes in the front panel made by hand with a drill, at first glance I decided to make a back panel from dibond (CNC milled) to keep the original aluminum panel in case of failure. Ultimately, I left it in a version that does not bother me, and by the way I can use the aluminum panel for the front, which unfortunately I scratched when drilling the hole for the potentiometer (although this is not very visible).
Below photos from the creation, unfortunately taken with a phone that only then I had on hand.
Neutral headphone jack, which was easiest to mount on the front panel, Alps blue potentiometer, RCA rhodium sockets, 20W toroidal transformer (smallest available) 2x13V, standard version proved to be sufficient (zero any hum), all-aluminum housing from China. I was thinking about shielded signal wires, but it turned out to be unnecessary. The amplifier has quite a large output power, the difference in quality between the sound card and it is very large. Now only the headphones change for the better.
Comments
Add a commentHmm, ready module inserted into the finished housing ... "P = 100mW, RL = 32?". Is it such a big output power? Where do you get the signal fed to the amplifier's input? [Read more]
TPA6120 provides 500mW at 32?, can work with loads even from 8?. It's probably a lot for a headphone amplifier. Signal from a sound card from a laptop, from a DAC to PCM2704 or from a CD H / K HD720... [Read more]
Yes, a lot, but at these 500mW distortions are already increasing significantly. The nominal power for headphones is 80mW and this is usually sufficient. Personally, I use such an amplifier and it... [Read more]
So what if the plate is ready, let the boy do what he loves. Why should he overpay 3x, how can he also learn something. Distortions are growing by leaps and bounds, I doubt that at 0.5W. [Read more]
After all, nobody chases him for it, kasss12 do not clutter the subject. [Read more]
For me, the power switch on the back of the case is not a very comfortable solution, we go further: - no fuse protecting the trafo on the 230V network side. - unshielded audio cables, and too close... [Read more]
Strangely, there is no problem with the hum, even with the maximally "unscrewed" potentiometer. I was thinking about using shielded cables before everything went to the housing (I was also worried about... [Read more]
Will you provide any information on the advertisement with the housing? It can be PW. [Read more]
I also folded it. http://obrazki.elektroda.pl/4272692200_1502807831_thumb.jpg http://obrazki.elektroda.pl/6339736200_1502807837_thumb.jpg http://obrazki.elektroda.pl/1624908900_1502807840_thumb.jpg... [Read more]
me too Affirmative. This is me too :wink: http://obrazki.elektroda.pl/5883650100_1503000320_thumb.jpg http://obrazki.elektroda.pl/9039977300_1503000320_thumb.jpg http://obrazki.elektroda.pl/8274550800_1503000326_thumb.jpg... [Read more]
Hello everyone, I'm also proud of my amplifier on the same system My version is double, meaning in one housing there are two amplifiers with independent volume control The amplifier has two stereo... [Read more]
Where did you get the casing ?? [Read more]
Is there documentation available for this amplifier somewhere on the network (RS 2016) or do I need to buy a kit (pig in a poke)? [Read more]
The author built such a nice headphone amplifier, and such a design babol has passed ... The ground wire cannot be screwed to the toroid screw. Now, when you touch the amplifier housing (or the equipment... [Read more]
How does sound quality compare to such a classic construction: http://sound.whsites.net/project113.htm ? [Read more]
I built such an amplifier is oki but I would like to add one pair of cinch and a switch to select the sound source , what can be used and how to connect it . [Read more]
For example, such: https://www.sklep.monster.pl/2-poz-6-pin-mts-202-przelacznik-631,4,36557,2007 pins from the left - left channel, from the right right center to the inputs of the amplifier top and... [Read more]