Your cart is empty.
Your cart is empty. Product Description
Name: ZK-502T bluetooth amplifier board
Input Voltage: DC 9V-24V
Max Power Output: 50w+50w
Input Method: Bluetooth & AUX
Channel: 2.0 CH Stereo Output
Output Impedance：4-8Ω
Bluetooth Version：BT 5.0
Protection Functions: Reverse Connection Protection Short Circuit Protection Self-recovery Overheat Protection
Size: 110*70*21mm
Weight: 113g
Warm Reminder:
The power switch on the board is a standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug it for a long time, you can unplug the DC plug on the machine. Properly increasing the voltage or reducing the speaker impedance can effectively increase the output power.
Packing Include:
ZK-502T Power Amplifier Board * 1
Protective Shell * 1 Set
DC Jack with Cable * 1
Screwdriver * 1
Knob * 3
William Bryan Hall
Reviewed in the United States on March 25, 2025
This worked exceptionally well for my DIY Bluetooth speaker. It provides ample power for two speakers, and the Bluetooth connection is seamless. The knobs are smooth and easy to use. The size is great, and the overall quality is excellent. I would definitely buy again.
Dr. Vencman
Reviewed in the United States on February 6, 2025
The popular ZK-502T has probably been sold a million times by now. I have purchased at least 10 so far for all my projects. If you want better, spend more. This is the cheapest Bluetooth amp board there is with T&B controls and a TPA3116 chip. Two thumbs up.
Rose
Reviewed in the United States on February 28, 2025
Its legit installed it to my custom modedd arcade 1up cabinet. You get that thump like the old school arcades.
John
Reviewed in the United States on January 9, 2025
I purchased and wasn't happy with product so I'm actually returning it, just sent it back today. Once wired up, the light turns on but doesn't always hook up to speakers. I'd say 1/10 times you turn it on it'll hook up. Don't buy unless you want to be irritated by just tryna get the damn thing to work.
Customer
Reviewed in the United States on January 14, 2025
Easy assembly. Simple connections. Bluetooth connected on first attempt. Raised an eyebrow when discovered that Bluetooth remained active after turning unit off with the volume switch. Like many people, I own Bluetooth headphones & other Bluetooth speakers, so would prefer the unit disconnect from phone when powered off. Not a big deal as I planned to add an external switch to control the power so that the volume wouldn't need to be adjusted each time it's powered on.
TVR
Reviewed in the United States on April 3, 2025
I used it in a jukebox, with a 9V power supply, that doesn’t have high-end speakers.It would be nice if the product included a face plate, or marked knobs, to know which knob does what when mounted in a cabinet. It wasn’t a big deal for me, because I used a Dremel to cut down the top plate that comes with the product.
Carpet Man McGee
Reviewed in the United States on November 19, 2024
I though this had broken when I attached it to a full sized speaker and cranked the bass. I in reality, it blew out the woofer of the speaker. Badass little box.Easy to assemble, and comes with a screwdriver, but probably a hair daunting if you're not familiar with the brass standoffs, or the stickered-on heat sink.
Isaac
Reviewed in the United States on November 12, 2024
The heatsink is an adhesive stick on. The one supplied with my board was much larger than in the current pictures. I would prefer a thermal paste screw on type. Considering the size of the current one, I'm not sure I trust the supplied heatsink long term, I expect it to come loose after a while. I do appreciate the size of the heatsink though, and almost wouldn't mind a larger one consdiering the max wattage of the amp chip, as long as it can be securely attached.Other than that, I was able to power it with a 24v power supply and play some music. It sounded plently good and clean. The BASS EQ had a nice curve to it. Some bass EQs just make things muddy, this one sounded pretty solid to me. The TREBLE EQ sounded fine too, controlling air and sheen. I did only play through the AUX input, and did not test bluetooth because I'm expecting to use this guy wired. Wired sounded nice and clear and detailed.I had to put mine together. Basically just had to put the bottom and top shield plates on, and put the heatsink on. It was kindof fun and hopefully helps keep the price on this little amp down.The heatsink is my main concern. Despite that, this amp sounded and worked great. Can't wait to finish my stereo build with this amp.
Recommended Products
