Tindie
cMoy headphone amplifier kit with fancy aluminum/acrylic enclosure
The cMoy Headphone Amplifier is a headphone amplifier kit suitable for use with portable audio equipment, smartphones, computers etc.
The cMoy is a minimalist headphone amplifier based around a single dual-channel opamp. It is based on a design well-known in the DIY Audio community. We’ve made it into an open source hardware kit that is easy to assemble for anyone looking for a starting point into the world of DIY audio.
We use high-quality parts sourced in Japan, including Rubycon capacitors and a Burr Brown OPA2134PA opamp. The potentiometer is a 10kΩ ALPS potentiometer with built-in on/off switch.
The cMoy comes as a kit, and includes the PCB board and all the components you need.
This version of the kit comes with a brushed aluminum case, with custom acrylic front and back panels. It is made in Japan by Takachi.
The only thing you will need to add yourself is a 9V battery, audio cable (mini jack male-male) and headphones.
Pretty nice
Enjoyable project.
Response from the Seller
If you send us an email with the instruction errors you found, we'll fix the page.
About running from USB:
The amplifier requires a dual supply of at least +-4V to run properly.
When running it on a 9V battery, +-4.5V is obtained by using a simple voltage splitter (using R2 and C1). Splitting the USB 5V PSU would only yield around +-2.5V, which wouldn't be enough, so to power the amp from USB additional circuitry is needed (for instance a DC-DC boost converter etc.)
Running off a 9V power adapter is possible though, but it might pick up 50/60Hz hum, so some extra filter might be needed for best results.
Rates to United States
| Shipping Rate | First item | Additional items |
|---|---|---|
|
Japan Post: Small Packet Air Mail
|
$3.60 | $3.60 |
Store Owner
- Akafugu Corporation
- 209 orders / 16 reviews
- Since Oct 06, 2012
- Usually ships within 2 days
- Yokohama, Japan
