If you are interested for a headphone amplifier, you could find one in my article in Audioxpress June 2013. The article is also on line here:
Build A High-Quality, High-Power Headphone Amplifier | audioXpress
If you are interested for easy construction using a PCB, you could find information here:
http://www.diyaudio.com/forums/swap...headphone-amplifier-audioxpress-6-2013-a.html
Build A High-Quality, High-Power Headphone Amplifier | audioXpress
If you are interested for easy construction using a PCB, you could find information here:
http://www.diyaudio.com/forums/swap...headphone-amplifier-audioxpress-6-2013-a.html
I have ordered a new small quantity of PCBs for my Headphone amplifier.
Build A High-Quality, High-Power Headphone Amplifier | audioXpress
The cost is 50 Euros for the two boards that are needed for a stereo amplifier.
If you are interested, send me an email at: gntanavaras@gmail.com
Build A High-Quality, High-Power Headphone Amplifier | audioXpress
The cost is 50 Euros for the two boards that are needed for a stereo amplifier.
If you are interested, send me an email at: gntanavaras@gmail.com
If you are interested for the Headphone amplifier see the last information in my thread:
http://www.diyaudio.com/forums/swap...adphone-amplifier-audioxpress-6-2013-a-2.html
http://www.diyaudio.com/forums/swap...adphone-amplifier-audioxpress-6-2013-a-2.html
New information can be found here:
http://www.diyaudio.com/forums/swap...adphone-amplifier-audioxpress-6-2013-a-2.html
http://www.diyaudio.com/forums/swap...adphone-amplifier-audioxpress-6-2013-a-2.html
New information for the PCBs can be found here:
http://www.diyaudio.com/forums/swap...adphone-amplifier-audioxpress-6-2013-a-3.html
http://www.diyaudio.com/forums/swap...adphone-amplifier-audioxpress-6-2013-a-3.html
If you are looking to build a High-Quality, High-Powered Headphone Amplifier you may find useful information at this link:
http://www.diyaudio.com/forums/swap...adphone-amplifier-audioxpress-6-2013-a-3.html
http://www.diyaudio.com/forums/swap...adphone-amplifier-audioxpress-6-2013-a-3.html
Halldor Scheving Vidarsson who lives in Iceland send me a link with a lot of pictures concerning the build process of my Headphone amplifier.
I have some PCBs available if someone is interested to build this amplifier.
Here are two of these pictures:
I have some PCBs available if someone is interested to build this amplifier.
Here are two of these pictures:
Attachments
Gdan,
Thanks for bringing our attention to this amp - looks like a nicely designed full-featured HPA/preamp.
I like the implementation in a metal lined wooden case - nice!
I built a HPA using the OPA1688 in parallel, it can deliver 75mA ea, so would require only 4 amps (or 2 dual IC's or 1 quad IC) for the same power, and I think THD is slightly better. Here is a hand etched dual parallel implementation with a custom power supply using DC-DC for 24v rails and then TPS7Axxx low noise regulators for battery-like +/-18v supply. It sounds very nice - quite powerful at 150mA. I am working on a parallel x8 version.
Here is layout if anyone wants to try - super easy to make:
More info here:
Cheap as Chips OPA1688 Low-THD Muscle Amp
Thanks for bringing our attention to this amp - looks like a nicely designed full-featured HPA/preamp.
I like the implementation in a metal lined wooden case - nice!
I built a HPA using the OPA1688 in parallel, it can deliver 75mA ea, so would require only 4 amps (or 2 dual IC's or 1 quad IC) for the same power, and I think THD is slightly better. Here is a hand etched dual parallel implementation with a custom power supply using DC-DC for 24v rails and then TPS7Axxx low noise regulators for battery-like +/-18v supply. It sounds very nice - quite powerful at 150mA. I am working on a parallel x8 version.
Here is layout if anyone wants to try - super easy to make:
More info here:
Cheap as Chips OPA1688 Low-THD Muscle Amp
Last edited:
Matti Pussinen who lives in Finland build my headphone amplifier and was very pleased to send me this message:
"Dear George,
I have a very good headphone amp, yes indeed, so good, I like it.
Dead quiet, and all is there. Been listening almost my all cd collection. And vinyls."
He also send me some photos of the amplifier.
Here is the first:
"Dear George,
I have a very good headphone amp, yes indeed, so good, I like it.
Dead quiet, and all is there. Been listening almost my all cd collection. And vinyls."
He also send me some photos of the amplifier.
Here is the first:
Attachments
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
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