Does it come with a power cord ?

No, you can use a 19v laptop charger but to get this thing fed what it needs buy a 24v 250watt power supply.

What is the low pass cut off for the subwoofer?

The frequency of the bass channel is 20hz-200hz

Would I be able to hook up a regular speaker to the "subwoofer" channel, if I wanted to individually control the volume of that one speaker?

The answer that specifies your frequency limitations is correct. If you connect a full range speaker, it will not sound good. But you can if you don't care about sound quality, in which case you should just go back under your rock and stay there.

I would want to use this for aux input only. can i set it to default to aux input? or do i have to switch from bluetooth to aux each time i power on?

It comes default in aux , there is no such switch for it , to answer your question in simple words, when you get it just connect the aux to it and don't werry about nothing else.

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ZK-TB21 2.1 Channel Bluetooth Amplifier Board, 50W+50W+100W Output, IPEX-1 Antenna Base, 12-24V DC Input, Customizable Bluetooth Name (DAJUNGUO ZK-TB21 Black)

ZK-TB21 2.1 Channel Bluetooth Amplifier Board, 50W+50W+100W Output, IPEX-1 Antenna Base, 12-24V DC Input, Customizable Bluetooth Name (DAJUNGUO ZK-TB21 Black)

Product ID: 213403491

Details

Item dimensions L x W x H
4.72 x 3.94 x
Manufacturer
DAMGOO
Maximum Supply Voltage
24 Volts (DC)
Minimum Supply Voltage
12 Volts (DC)
Voltage
24 Volts

⚡12-24V wide voltage input

📶Bluetooth 5.1 with dual antenna

🔊200W total output power

€ 41.60

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎵 Elevate your sound game with power and precision — don’t just listen, experience it!

BUILT IN SAFETY SHIELD - Comprehensive protections against overheating, reverse polarity, and voltage fluctuations keep your setup secure.
VERSATILE COMPATIBILITY - Supports Bluetooth and 3.5mm AUX inputs, effortlessly connecting to smartphones, TVs, and laptops.
POWER PACKED AUDIO PERFORMANCE - Delivers a robust 50W+50W+100W output for immersive sound clarity and depth.
CUSTOMIZABLE BLUETOOTH IDENTITY - Personalize your device name for a unique, professional touch that stands out in any environment.
SEAMLESS BLUETOOTH 5 1 CONNECTIVITY - Enhanced dual antenna design ensures stable, long-range wireless streaming without dropouts.

The ZK-TB21 is a high-performance 2.1 channel Bluetooth amplifier board delivering up to 200W total output with advanced TPA3116D2 HiFi chip technology. Featuring Bluetooth 5.1 with onboard and external IPEX-1 antenna for superior wireless range, it supports both Bluetooth and AUX inputs. Designed for professional-grade audio setups, it operates on a wide 12-24V DC input and includes multiple safety protections to ensure reliable, long-lasting performance. Customizable Bluetooth naming adds a personalized edge, making it ideal for tech-savvy millennials seeking powerful, versatile sound solutions.

Specifications

ASIN	B0FN8CXZSY
Best Sellers Rank	#26,396 in Electronics ( See Top 100 in Electronics ) #366 in Audio Component Amplifiers
Brand	DAMGOO
Brand Name	DAMGOO
Customer Reviews	3.6 out of 5 stars 6 Reviews
Item Dimensions	47.24 x 39.37 x 8.66 inches
Item dimensions L x W x H	47.24 x 39.37 x 8.66 inches
Manufacturer	DAMGOO
Maximum Output Power	200 watts
Maximum Supply Voltage	24 Volts (DC)
Minimum Supply Voltage	12 Volts (DC)
Model	DAJUNGUO ZK-TB21
Mounting Type	Freestanding
Number of Channels	2
Output Power	200 Watts
Part Number	ZK-TB21
Specification Met	Amazon's Standards
Supply Current	5 Amps
UPC	194852391963
Unit Count	1.0 Count

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€ 41.60

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Received my product in pristine condition. Great service overall.

1 month ago

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