Is it possible to buy replacement boards from the manufacturer? I dont need the housing.

Hello. We have boards for sale, sub version: https://www.amazon.com/dp/B07H337F4L?ref=myi_title_dp full frequency version: https://www.amazon.com/dp/B07H339BFP?ref=myi_title_dp

What is the input jack? RCA? 3.5?

3.5. I run rca into a 3.5 from my radio

Power on/off creates a loud annoying pop. I would like to shut the output with a capacitor to suppress the pop. What capacitor value and voltage?

I was very concerned with the very loud pop and found the only solution was to use: https://www.amazon.com/gp/product/B097T2YNB4/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&th=1 I use this as the speaker cable and before shutting off the amplifier, I flip the switch on the speaker cable, disconnecting the speaker from the amp. It works perfectly.

will this work with an input from a preamp?

Not sure. I used input from a receiver and that worked.

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Nobsound NS-03G Subwoofer Amplifier 100W Mini Sub Power Amp (Black)

Product ID: 499657298

Details

Brand
Nobsound
Item dimensions L x W x H
6.8 x 3.3 x 9
Manufacturer
Nobsound
Mounting type
tabletop
Voltage
25 Volts (DC)

📏Compact 6.85x3.3x9 cm size

🔊100W high power output

🎛️Smooth volume control knob

Description

🎵 Compact power, colossal bass – don’t let your setup miss out!

POWERFUL 100 W OUTPUT - Unleash deep, room-filling bass with high-efficiency TPA3116D2 chip technology.
ULTRA COMPACT DESIGN - Fits seamlessly on your desk or subwoofer without cluttering your space.
LIGHTWEIGHT DURABLE - Solid black shell and featherlight 200g build for easy placement and lasting performance.
PRECISION VOLUME CONTROL - Smooth knob lets you dial in the perfect bass level for any vibe.
VERSATILE 3 5 MM AUX INPUT - Effortlessly connect phones, TVs, or CD players for instant audio upgrade.

The Nobsound NS-03G is a sleek, mini subwoofer amplifier delivering 100W of pure bass power via a TPA3116D2 chip. Designed exclusively for passive subwoofers, it features a smooth volume knob, 3.5mm AUX input for versatile connectivity, and a compact, durable black shell perfect for desktop or subwoofer placement. Note: power supply sold separately.

Specifications

ASIN	B072KDNW3F
Brand	Nobsound
Customer Reviews	4.1 4.1 out of 5 stars (827)
Item Dimensions	6.8 x 3.3 x 9 centimetres
Item Weight	0.2 Kilograms
Manufacturer	Nobsound
Manufacturer Part Number	SUB&FR
Model Number	4330353845
Mounting Type	tabletop
Number of Channels	1
Output Power	100 Watts
Voltage	25 Volts (DC)

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