Subscribe, like & comment! 🔊😀👍 ~~~ Help support my channel by purchasing here: 47 Amp DIY NE5532 Hi-Fi Headphone Amplifier Kit amzn.to/2olPV3f Xcelite 175D ESD safe flush cutters (with spring lead retention) amzn.to/2PcHYIH Weller SP40NKUS (newer version of my soldering iron) amzn.to/2obZotM JVC HA-RX900 Headphones amzn.to/2wlokmU Kinter K2020A+ (power supply borrowed from this) amzn.to/2M0v2EX
Hey, quite late comment, but I got a question if you don't mind. I recently got this amp kit with the intention of putting it in a nice wooden enclosure instead of simple supplied plexiglass ordeal, so I got panel-mount replacements for the audio inputs (RCA) and output (6.3mm), power socket, toggle switch for power, and red LED to replace the default blue one. I put it together with the aforementioned new parts and the included volume pot mounted on wires as opposed to directly on the PCB and checked that everything was in the right place and solder joints were good before powering it on. Now everything seems OK, no blue smoke comes out, nothing overheats, etc., but there's awful buzz (sounding like mains hum) that increases and decreases with the volume pot. So far I've tried three different power supplies, one from an audio device (with the assumption it's likely a cleaner one), but the hum's the same with all of them. Tried powering the amp with two 9V batteries in series and that got rid of pretty much all the hum, but I'd really like the unit be wall-wart powered instead of having to rely on batteries... Any ideas what could be causing the buzz on wall-warts? About the only thing I can think of is the number of components mounted using lengths of wires instead of being PCB mounted, but should that have such a drastic impact?
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Subscribe, like & comment! 🔊😀👍
~~~ Help support my channel by purchasing here:
47 Amp DIY NE5532 Hi-Fi Headphone Amplifier Kit
amzn.to/2olPV3f
Xcelite 175D ESD safe flush cutters (with spring lead retention)
amzn.to/2PcHYIH
Weller SP40NKUS (newer version of my soldering iron)
amzn.to/2obZotM
JVC HA-RX900 Headphones
amzn.to/2wlokmU
Kinter K2020A+ (power supply borrowed from this)
amzn.to/2M0v2EX
Any idea what the output is of the amplifier in watts?
Nice project!
2 simple rules.
first rule to avoid the false ne5532.
second rule to use 18 volts very low ripple (batteries 9 volts x2 in series)
Hey, quite late comment, but I got a question if you don't mind.
I recently got this amp kit with the intention of putting it in a nice wooden enclosure instead of simple supplied plexiglass ordeal, so I got panel-mount replacements for the audio inputs (RCA) and output (6.3mm), power socket, toggle switch for power, and red LED to replace the default blue one. I put it together with the aforementioned new parts and the included volume pot mounted on wires as opposed to directly on the PCB and checked that everything was in the right place and solder joints were good before powering it on. Now everything seems OK, no blue smoke comes out, nothing overheats, etc., but there's awful buzz (sounding like mains hum) that increases and decreases with the volume pot. So far I've tried three different power supplies, one from an audio device (with the assumption it's likely a cleaner one), but the hum's the same with all of them. Tried powering the amp with two 9V batteries in series and that got rid of pretty much all the hum, but I'd really like the unit be wall-wart powered instead of having to rely on batteries...
Any ideas what could be causing the buzz on wall-warts? About the only thing I can think of is the number of components mounted using lengths of wires instead of being PCB mounted, but should that have such a drastic impact?
hi This is Ranjan from Bangladesh . can i use this circuit for professional Studio quality headphone like Audio Tecnica M20x or M50x?
Can you provide a picture of the circuit on its manual ?
Sorry, I don't have it anymore.
12 volt or 9volt
Or 18 volts ??