DROK Class AB Amplifier, 2.1 Channel 80W+80W Stereo and120W Pure Bass 9-18V 4Ω Audio Amplifier Board
Condition: New
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Availability:
In Stock.
Arrives
Monday, Aug 18
Features
- Parameter --- Working Voltage: DC 9-18V, Output Power: Max 2x80W Stereo(18V/4), 1x120W Pure Bass(18V/2), 2.1 Channels Recommended 2/4/6/8 Speakers, Can be Powered by 9V 12V.
- 3.5mm/3P Input --- This Amplifier Board Support Two Types of Input: 3.5mm Audio Input or 3P_2.54mm Terminal Input.
- Feature --- Eliminate Background Noise and Bring Better Sound Effect. Four 3300UF Professional Audio Filter Capacitors; Vehicle Level Amplifier Chip; Gold Plated Audio Input Terminal; Pure Blakc Sealing Potentiometer.
- Protection --- Input Anti Reverse-Connect Protection, Output Short Circuit Protection, Over Current Protection(OCP), Over Temperature Protection (OTP).
- Warranty Guarantee --- 1 Year Long-Term Warranty Guarantee Since Purchased the Product.
Description
Parameter: Working Voltage: DC 9 - 18V Output Power: Max 2x80W stereo(18V/4Ω), 1x120W pure bass(18V/2Ω) Connecting: 2/4/6/8Ω speaker Input Method: 3.5mm audio input or 3P_2.54mm terminal input Protection: input anti reverse-connect protection, output short circuit protection, over current protection (OCP), over temperature protection (OTP). PCB Size: 72.36mm66.65mm(lengthwide) Overall Size(radiator included): 72.36mm96mm27mm Potentiometer Rotating Handle Opening: 7mm Installing Hole Spacing: 25.4mm48.26mm(compatible for blue-tooth module spacing) Installing Hole Size: M3
Voltage: 18 Volts
Manufacturer: DROK
Minimum Supply Voltage: 9 Volts (DC)
Mounting Type: Surface Mount
Brand: DROK
Voltage: 18 Volts
Manufacturer: DROK
Minimum Supply Voltage: 9 Volts (DC)
Mounting Type: Surface Mount
Brand: DROK
Number of Channels: 2
Material: Printed Circuit Board, Radiator/Heat Sink
Package Dimensions: 5.91 x 4.8 x 1.5 inches
Item Weight: 5.9 ounces
Item model number: 200540
Date First Available: July 23, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Aug 18
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Black 2
This is a really nice amplifier board, and I've tried a few. This review specifically pertains to the model being listed here, "Class AB Amplifier, DROK 2.1 Channel 80W+80W Stereo and120W Pure Bass 9-18V 4Ω Audio Amplifier Board". Some of the older reviews appear to be talking about a totally different product. This one does not have bluetooth. Honestly the sound quality from this thing is outstanding, it's clean and loud and music sounds fantastic. K have it hooked up to an ATX power supply that I use for my car audio equipment at home, pushing 12v through a fused distribution block. The input is a 3.5mm aux connection to my Galaxy S22 USB-C out, converted through an in-line DAC. Upon initial turn-on, a nice green LED lit up,and there is no noise whatsoever coming out of my 6.5 inch coax speakers. No buzz,no fuzz, no hiss, and no piss. A beautiful thing go experience if you've been let down by some of these mini amplifier boards previously like i have. I also hooked up the subwoofer output to my 10 inch sealed Infinity REF sub at 2 ohms. The balance is unbelievable! There's only one volume control know, so there is no way to modulate the sub or speakers independently, they're just mixed on the board, but the mix is super nice and balanced. Overall I'm super happy with this amp. It aounds better than other amps that cost multiples of what this one cost me ($23). I recommend it without reservation, just make sure you know what you're doing and have the 12v equipment needed for running this in your setup. Kinda wish it had bluetooth but I knew it wouldn't going into it so that's not an actual knock on the product. Just a wish. Good luck and enjoy. This thing puts out loud clean clear audio signals for your speakers!!
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Reviewed in the United States on July 23, 2022 by rivaldealer
Color: Black 2
Interesting little board for the DIY / hobbyist crowd. It uses a ST TDA7850 chip intended for 4 channel automotive applications. The subwoofer implementation is pretty straightforward, although it should be noted that the subwoofer uses only one of the chip's amplifier sections, it's not 2 sections bridged as you might assume from the advertised specs. Look up the ST TDA7850 datasheet for more realistic specs. Despite the specsmanship, I found this to be a nice alternative to all the Class-D boards out there. I measured about 60W into 4ohms at clip with a 15V supply, impressive for the price. Sound quality is about what you would expect. It's obviously not going in any audiophile systems but would be right at home in desktop A/V applications.
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Reviewed in the United States on July 14, 2024 by JT JT
Color: Black 2
The amp came banged up a little.heat sink had to be straighten.also the volume knob.i can't tell if it's the seller or the carrier.but!!! This thing sounds amazing!!!wow!!! Connected to the fiio btr5 as a preamp,lots of detail but still sweet warm sounding.3 hours movie watching or music listening and for me it doesn't get extremely hot.but I still recommend at least adding between the chip and heat sink some thermal paste.i added a speaker protection circuit between the amp and speakers to solve the turn off 'pop' (capacitors discharged).this thing built nicely and its sound is amazing.i recommend.
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Reviewed in the United States on January 8, 2024 by asaf asaf
Color: Black 2
The bass output seems to be bumped a bit. So much so that I need to lower the equalizer/tone control to the flat position or lower. Factors that affect this are the SPL (efficiency) of the subwoofer, of the satellite speakers and impedance. It could help to run a DC brushless computer fan to actively cool it although I don't know if that will really increase the lifetime of the amp. Additional heat sinking could be added, too, with some thermal epoxy and secondary heat sink. Connect a Bluetooth module and you have a nice sound streaming system.
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Reviewed in the United States on January 2, 2022 by Movie Listener
Color: Black 2
The media could not be loaded. It's not 80x2 +120 sub out... Won't even pull 80 watts off a power supply. Sounds good but far less power than claimed. We've got maybe 20x2 +40 on the sub out. 1/4 of the advertised claim. Can't anybody advertise honestly?
Reviewed in the United States on June 6, 2022 by richard j.
Color: Black 2
Warm and true audio out of this one!!! The sound is the true nature of an AB class amp! This tops other board amps of this size by far! Most people’s opinion on what classifies a good amp is just how loud it gets or how much bass u can get out of it. With this one I only cared about the tone and fidelity for mixing without any colouring of the sound and it does this perfectly. I did get the 2.1 channel one but haven’t connected any sub. It gets plenty loud enough for anything I’d need it for without distortion. The caps did come banged up on the top and I wasn’t too happy about that but it still works and I even purchased spare caps to swap them if needs be. I highly recommend this one if your priority is pure sound quality
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Reviewed in the United States on August 14, 2023 by Xargus Xargus
Color: Black 2
The left and right channels are wired together. This doesn't sound great with aux and actually breaks some dac inputs.
Reviewed in the United States on May 5, 2024 by Amazon Customer
Color: Black 2
Sounds decent, has good output but will hum quite a bit if the volume is at max with nothing playing. I gave four stars because that may be a wiring issue on my part, but otherwise it seems decently made, not top of the line obviously but it does exactly as expected and is actually quite a little contender if you add a cooling fan, stays nice and cold that way but without one it gets a bit hot at 75% volume on 4ohm speakers.
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Reviewed in the United States on May 5, 2022 by Garrett