Is the subwoofer frequency knob an adjustable low-pass filter?

Yes frequency and gain aka volume separate from volume for everything..aswel as a slider volume so you can set the max anyone can turn the volume up..so they don't blow ..

If I was hook this up in my vehicle with about 13.6vdc-14.1vdc and 50-60amps then will it work or blow? If it’ll work then how many watts/channel???

I had the slightly weaker version setup in my vehicle. I wired the front speakers to the two speaker channels, and ended up wiring my rear 6x9s in series and wired those to the subwoofer channel. You must be careful with impedances if you do this to make sure you don't blow your speakers. But doing this gave me very good sound for not having an actual subwoofer. A dedicated, high power amplifier will have way more bump for an actual subwoofer, however, if you're ok with the idea of using your rear fill as a stand-in subwoofer, wire it up how I described and it'll sound pretty good. I also used a DC-DC buck converter to step my vehicle's 12-14V DC up to the optimal power level for the amplifier. They're all over amazon just search the input power by the output power and the amp rating and you'll be good to go.

Fuente recomendable para este equipo?

¿Quieres decir qué tipo de energía necesita? La fuente de alimentación de 12V-36V / (5-15A) DC puede impulsarlo. Si desea obtener una entrada de alta potencia, primero debe aumentar el voltaje de entrada o reducir la impedancia del altavoz.

To run a 4ohm sub and 4 ohm speakers what ah should I get for the 36v power supply?

This need depends on your needs, if your speaker power is relatively large, then it is recommended to use 36V. If the power of the speaker is not very large, the 24V DC power supply can also drive your speaker.

Desertcart Logo

Deliver to USA

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

🎵 Elevate your sound game — power, control, and protection in one sleek board!

RELIABLE 24 7 SUPPORT - Dedicated customer service ensuring your audio journey never skips a beat
TAILOR YOUR SOUNDSCAPE - Precision treble and bass knobs for layered, dynamic audio
PLUG PLAY VERSATILITY - Compatible with standard 5.5mm*2.1mm DC adapters + included converter
BUILT TO PROTECT PERFORM - Advanced short-circuit, over-current, over-heat, and reverse polarity safeguards
IMMERSIVE 2 1 CHANNEL POWERHOUSE - Feel every beat with 160W stereo plus 220W subwoofer output

The TDA7498E Bluetooth Power Amplifier Board (ZK-HT21) delivers a robust 2.1 channel audio experience with 160W per stereo channel plus a 220W subwoofer output. It supports a wide DC voltage input range (15-36V) and features independent treble and bass controls for customized sound tuning. Designed for compatibility with common DC adapters and equipped with multiple protection mechanisms, this compact amplifier ensures high-fidelity performance and durability. Ideal for audiophiles seeking powerful, adjustable sound with reliable safety and support.

Specifications

Item dimensions L x W x H	15 x 13.1 x 2.6 Centimeters
Voltage	36 Volts (DC)
Manufacturer	DAJUNGUO
Maximum Supply Voltage	24 Volts
Minimum Supply Voltage	15 Volts (DC)
Mounting Type	Surface Mount
Brand	DAJUNGUO
Number of Channels	2
Output Power	5.4E+2 Watts
Package Type Name	Package
Specification Met	CE, FCC, RoHS
UPC	194852390676
Country of Origin	USA
Model number	ZK-HT21
Colour	multicolor
Number of Memory Sticks	1
Item Weight	327 g
Product Dimensions	14.99 x 13.08 x 2.59 cm; 327 g
Item model number	ZK-HT21
Item Height	1.02 Inches
Item Width	5.15 Inches
Cooling type	Metal heat sink
Power Source	DC
Included Components	DC conversion plug
Are batteries included?	No

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.