NE5532 C2-001 AC 12-24V Power 4 Channel Adjustment Amplifier Tuning Board Preamplifier
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An excellent pre-amplifier of good quality I've already tested on audio and I'm satisfied, it already has everything and even the power supply stabilized with IC. You just have to turn on the 3-wire transformer to the proper voltage. It arrived very quickly and in perfect condition. Already well-assembled and with excellent components and good welds. I recommend this article and give a 10 note. I will order more. Look at the pictures! Thank you Banggood
Great purchases, order placed and delivered 15 days later at the Post Office, congratulations to the BG team for the good work. It arrived in a simple package with padding protecting some assorted items, and in perfect condition. After opening and photography, it touch me a lot of small items in one purchase and I did not have much time available, however, I did some tests and observations. The product that was missing from my BPA project with 4 LM3886 per channel, the modules with LM3886 I have, only the preamplifier was missing. Unfortunately one channel has no sound, the other is working very well, I did a visual examination on the tracks and welding points, and also on the components with a 30x magnifier and good direct lighting and backlight. The assembly plate and the loose knobs, nuts and washers came packaged well, so I examined the components, I also removed the NE5532 and moved them, and the problem continues. When I have more free time, I will use the multimeter and the sign finder to find out where the problem is. Great acquisitions, request made and delivered 15 days later at the Post Office, compliments to the BG team for the good work. It arrived in a simple packaging with padded protecting some assorted items, and in perfect condition. After opening and photographing, it took me as it was a lot of small items in a purchase and I didn't have much time available, however, I did some tests and observations. The product that was missing in my BPA project with 4 LM3886 per channel, the modules with LM3886 I have, was missing only the preamplier. Unfortunately one channel has no sound, the other is working very well, I did a visual examination on the trails and weld points, and also on the components with a 30x Lupa and good direct lighting and retro lighting. It came well packed the mounted board and the loose knobs, nuts and washers, so I examined the components, I also removed the NE5532 and switched places, and the problem continues. When I have more time on my hands, I will use
Reasonable price, is the second I buy, the first needed cleaning is welding rework for 1 of the channels to go back to work, I hope this one needs only cleaning.
Perfect, it works without noise, excellent quality, I use it with the amplifier bought right here and both work beautifully, thank you. Packaging can be improved.
Product arrived today well packaged but haven't tested it yet and it looks to me like a great preamplifier. I intend to test it as soon as I can.
Nice i recommend it to everyone NE5532 C2-001 AC 12-24V Power 4 Channel Adjustment Amplifier Tuning Board Preamplifier
This is an awesome product for the price. There is room for improvement. Ex: the writings are in Chinese and one has to go the hard way to figure out individual potentiometers. The aux input is on the right side and id prefer it being a standard 3 pin connector. Else, while fabricating the case, IL have to position this preamp in the right side corner. And even then the input will be on the right side of the box and not behind. Woks on 12-0-12v ac. Rectifier is built in.
The product arrived in perfect condition, just one thing I wasn't very satisfied with, was with the output power, which could be a little bit higher, so I could excite less sensitive audio inputs like the input of the Datrel amplifier.
Hello all. The package came on time and in good condition despite the poor packaging. Three nuts were missing, I don't use it anyway. In the attached picture You can see the layout. The preamp is on the 12-0-12v side of the transformer. Sound is very good, clear and nice. The tone knobs are efective. Sound never becomes muddy even If you cut highs and mids. It remains transparent. I recommend.
Excellent product, I recommend. 😉