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30-Day Return
2-Year Warranty
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- Powerful Subwoofer Amplifier: Compact but mighty, the NS-21G is a 100W mono amplifier designed for passive subwoofers and bass shakers. Featuring the efficient TPA3116 Class D amplifier chip, it delivers strong and clean bass for home theaters, desktop systems, and gaming rigs.
- RCA & AUX Input for Wide Compatibility: The NS-21G supports both RCA and 3.5mm AUX inputs, making it easy to connect with TVs, phones, tablets, computers, CD players, and streaming boxes. Its dual-input design ensures the subwoofer amp integrates smoothly into almost any home audio system.
- Adjustable Low-Pass Filter: Customize your bass with the built-in 20-160Hz bass frequency cutoff filter. It makes sure only the deep bass sounds go to your subwoofer, so the bass sounds fuller and doesn't overlap or mess up the sound from your main speakers — a must for clean, punchy bass in Hi-Fi setups.
- NE5532 Op-Amp for Clearer Bass: Powered by the well-known NE5532 op amp, the NS-21G delivers smooth and detailed low-frequencies with low distortion and minimal noise. It’s a reliable choice that improves bass clarity for everyday listening, movie nights, or gaming sessions.
- Compact, Durable & Built for Bass Lovers: Designed in a robust all-metal case, the NS-21G is durable enough for long-term use and compact enough to fit on any desktop or shelf. Ideal for gamers, audiophiles, and home cinema lovers who need more punch in their low-end without sacrificing space.
- Brand: Nobsound
- Model: NS-21G
- Audio input: RCA/3.5mm AUX
- Audio output: Subwoofer out
- Number of channel: mono
- Chip: TPA3116
- Op-amp: NE5532
- Rated output power: 100W
- THD+N: 0.04%
- SNR: ≥103dB
- Bass cutoff frequency: 20-160Hz
- RCA input sensitivity: 0.775V
- Matched speaker impedance: 4-8Ω
- Working voltage: DC 12-24V (5.5*2.5mm)
- Dimensions (W*D*H): 90*105*30mm / 3.54*4.13*1.18in
- Package dimensions (W*D*H): 205*180*55mm / 8.07*7.08*2.16in
- Net weight: 325g / 0.72lb
- Package weight: 700g / 1.54lb
- NS-21G Amplifier ×1
- DC 19V Power Adapter ×1
- User Manual ×1