Will this power up passive subwoofers ?

Yes, absolutely. That's the reason I bought it and it works just fine without spending a whole lot of money.

How hot does this amp run? The unit I currently use is very hot to the touch even after a short while.

This thing seems cool no issues

What is the input voltage range?

Not sure what your question is about. If you mean input power, it's spec'd. at 12-24 vdc. It comes with a power brick rated at 19 vdc, 4.47 amps. Input sensitivity is =< 280 mv...

I have a Harman Kardon reciver with a single rca sub connection. What cables do i need to hook my sub to this amp and the amp to my reciever

You need 1/8 audio plug to RCA adapter ..

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Fosi Audio Subwoofer Amplifier Receiver 100Watt Mini Hi-Fi Digital Class D Integrated Stereo Audio Amp for Sub Bass + Power Supply TP-01

Fosi Audio Subwoofer Amplifier Receiver 100Watt Mini Hi-Fi Digital Class D Integrated Stereo Audio Amp for Sub Bass + Power Supply TP-01

Q: I have a Harman Kardon reciver with a single rca sub connection. What cables do i need to hook my sub to this amp and the amp to my reciever

You need 1/8 audio plug to RCA adapter ..

Product ID: 279002309

Details

Item dimensions L x W x H
13.2 x 8.9 x
Manufacturer
Generic
Maximum supply voltage
19 Volts (DC)
Minimum supply voltage
10 Volts (DC)
Voltage
12 Volts (DC)

⚡Digital Class D efficiency

📏Compact 13.2x8.9x3.6 cm size

🔊100W powerful output

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€ 158.83

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎶 Small Amp, Big Vibes: Elevate Your Bass Game Instantly!

MINI MARVEL - Compact footprint fits seamlessly into any home audio setup or hidden subwoofer space.
PLUG PLAY READY - Includes power supply for instant integration—upgrade your sound system hassle-free.
NEXT GEN EFFICIENCY - Class D digital design ensures crisp sound with minimal heat and energy waste.
PURE POWER ZERO BULK - 100W output delivers deep, room-filling bass without the bulk of traditional amps.
VERSATILE BASS BOOSTER - Perfect for subs and couch shakers alike, transforming your living room into a private concert.

The Fosi Audio TP-01 is a compact, 100W Class D digital subwoofer amplifier designed for high-efficiency, clear, and powerful bass enhancement. Its mini size and included power supply make it an ideal upgrade for home theater subs and tactile audio setups, delivering professional-grade sound without overheating or bulky hardware.

Specifications

ASIN	B07942M4MC
Best Sellers Rank	#76,720 in Electronics ( See Top 100 in Electronics ) #201 in Home Audio Amplifiers
Brand Name	Fosi Audio
Customer Reviews	4.5 4.5 out of 5 stars (507)
Item Dimensions	13.2 x 8.9 x 3.6 centimeters
Item Weight	450 Grams
Manufacturer	Generic
Material Type	metal
Maximum Output Power	100 watts
Maximum Supply Voltage	19 Volts (DC)
Minimum Supply Voltage	10 Volts (DC)
Model	M04
Mounting Type	Surface Mount
Number of Channels	1
Output Power	100 Watts
Package Type Name	Standard Box
Part Number	M04
Specification Met	FCC, RoHS
Unit Count	1.0 Count
Voltage	12 Volts (DC)

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