The TAGA Harmony THUNDER SW-12 is a powerful active subwoofer designed to add deep, impactful bass to home theatre and stereo music systems. Its 12-inch paper-cone driver, built-in high-current Class A/B amplifier and rear-facing slotted bass-reflex port are engineered to deliver substantial low-frequency output with control and definition.
With a published amplifier rating of 350W RMS and 950W dynamic peak, the SW-12 is designed for systems where bass impact, scale and dynamics matter. Its adjustable crossover and phase control help integrate the subwoofer with compatible main speakers.
Key Features
12-inch dedicated bass driver
A 305 mm paper-cone woofer provides the foundation for deep bass effects, weighty movie soundtracks and fuller musical reproduction.
350W RMS Class A/B amplification
The built-in high-current amplifier is rated at 350W RMS, with 950W dynamic peak power, for demanding low-frequency passages.
Rear slotted bass-reflex design
The rear port supports bass output while the manufacturer's TLIE enclosure design aims to improve cabinet stiffness and reduce unwanted resonances.
Designed for home theatre and music
The THUNDER SW-12 is suited to home theatre systems that need greater low-frequency depth, impact and scale. Explosions, cinematic effects and soundtrack dynamics gain additional weight, while the subwoofer can also reinforce bass in stereo music systems.
Its active design includes its own amplifier, so it does not require a separate power amplifier for the subwoofer driver. It connects to a compatible receiver or preamplifier through its dedicated subwoofer or line-level inputs.
Bass control and system integration
The SW-12 includes adjustable crossover frequency and phase selection to help it blend with the main speakers in a system.
- Variable crossover: 30–150 Hz.
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Phase selection: 0° or 180°.
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Auto power: Automatic on/off functionality.
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Inputs: Stereo low-level L/R input and dedicated SUB/LFE input.
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Power connection: Removable IEC power cable.
For best results, crossover and placement should be adjusted to suit the main speakers, listening room and receiver's bass-management settings.
Specifications
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Model THUNDER SW-12
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Product type Active subwoofer
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Driver 305 mm (12-inch) paper cone
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Amplifier Class A/B, high-current THCA
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Amplifier power 350W RMS
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Dynamic peak power 950W
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Frequency response 30 Hz–200 Hz (±3 dB)
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Crossover adjustment 30–150 Hz, variable
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Phase control 0° / 180°
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Bass-reflex port Rear-facing, single slotted port
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Inputs Low Input L/R, SUB/LFE
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Enclosure TLIE
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Auto power Auto On/Off
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Power supply 220–240V AC, 50/60 Hz
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Power consumption 450W / below 0.5W standby
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Dimensions (H × W × D) 50 × 41 × 49.6 cm, including grille and feet
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Weight 34.5 kg per unit
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Finish listed by manufacturer Black
In the box
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TAGA Harmony THUNDER SW-12 active subwoofer
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RCA-to-RCA subwoofer cable
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Removable IEC power cable
Why buy from SoundTrails
Choosing the right subwoofer is about more than amplifier power or driver size. Room dimensions, placement, crossover settings and integration with the main speakers all influence bass quality.
At SoundTrails, our Audio Video Architects help you select and integrate subwoofers for home theatre and stereo listening environments. From system matching and placement guidance to professional installation and after-sales support, we aim to deliver a balanced, immersive listening experience tailored to your space.
