Will this work with powered subwoofer? Passive suboofer?

A Passive subwoofer would be my recommendation, the passive subwoofer depends on an external amplifier and this would be the external amp. If you use an Active subwoofer; it contains a built-in amplifier and the result would be overpowering the subwoofer and you will get adverse effects

Does the amp have a fuse?

Your question does Not specify your concern for a fuse on the Power input or on the Speaker Output section ? Answer: No fuse at all, the circuit with a 12 VDC 2 amp or above 18~24 VDC Power supply adapter does not get warm at all; it has a very good Audio quality response as well as the Output Power volume for its size. It is an excellent amplifier. with 12VDC supply - 15Watt Output Power up to 24VDC supply - 50Watt Output Speakers Power and the Subwoofer power Output ranges from 20W ~ 100W output Power depending on the Power supply input.

how high does the subwoofer lowpass go? Can i push it up to around 500hz, or does it stop at, say, 150hz?

It can't 500hz, only be used in the range of 20-200hz.

Are the main L&R speakers full-range or high-passed? If they are high passed what is the cutoff frequency?

Both channels are full range, with separate bass/treble controls. I don't know what frequency the controls are biased at.

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MakerHawk copper Bluetooth Amplifier Board Hifi Stereo 2.1 Tpa3116D2 2X50W+100W 12V-24V Audio Power Amplifier Module Bass And Treble Control For Store Home Theater Speakers

Product ID: 384175897

Details

Item dimensions L x W x H
11.8 x 10 x
Voltage
24 Volts
Manufacturer
hawkbill
Maximum Supply Voltage
24 Volts
Mounting Type
Surface Mount

🎵Bluetooth 5.0 & AUX dual input

🔊150W total output power

🔋12V-24V wide voltage range

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Rp1241338

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Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Elevate your sound game with MakerHawk’s powerhouse amplifier!

DURABLE COPPER BUILD - Premium copper connectors ensure stable current flow and long-lasting reliability.
ROCK SOLID PROTECTION - Built-in safeguards guard against short circuits, overheating, and voltage spikes.
SEAMLESS CONNECTIVITY - Bluetooth 5.0 and AUX inputs keep your playlist flowing effortlessly.
PRECISION SOUND CONTROL - Adjust bass, treble, and volume to craft your perfect audio vibe.
POWER PACKED PERFORMANCE - Delivers crisp 2x50W + 100W output for immersive sound.

The MakerHawk Copper Bluetooth Amplifier Board is a high-performance 2.1 channel Class D amplifier delivering 150W total output with advanced Bluetooth 5.0 connectivity and AUX input. Featuring robust protection mechanisms and precise bass/treble controls, it’s designed for home theaters, store speakers, and audiophile setups, all housed in a durable copper connector frame supporting 12V-24V power input.

Specifications

Item dimensions L x W x H	11.8 x 10 x 2.2 Centimeters
Voltage	24 Volts
Manufacturer	hawkbill
Maximum Supply Voltage	24 Volts
Mounting Type	Surface Mount
Brand	MakerHawk
Number of Channels	2
Output Power	150 Watts
Specification Met	Meets certain specifications
Material	copper
UPC	738582506800
Model	ZK-TB21
Product Dimensions	11.8 x 10 x 2.2 cm; 195 g
Item model number	ZK-TB21
Mounting Hardware	1 electronic component amplifier
Number of items	1
Audio Wattage	200 Watts
Batteries Included	No
Batteries Required	No
Item Weight	195 g

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Rp1241338

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In stock

Sold byAmazon IndonesiaDelivered 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 Indonesia.

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