TAGA Harmony

Thunder SW-15D Print


The Thunder SW-15D is a 15” single driver subwoofer with a built-in high-current 20A class D amplifier and utilizing a slotted bass port on the rear.

The built-in Class D amplifier deliveres a staggering 650 watts of power and is characterized by high efficency and great current drive which results in lower distorsions, more smooth and flat response and much faster amp operation with significantly reduced operation noises.
An integrated clipping limiter maintains the best performance and safe operation of the amp and woofer even at extremely high volume levels.

The woofer weights almost 7.5 kg and utilizes a strong paper cone, metal chassis, 2-magnet structure and a robust voice coil - the result is higher amplitude range operation and faster react on any changes in the audio signal.

IEC C14 power inlet and a removable Schuko-IEC C13 power cord provides better power supply filtering and stability and gives an option to upgrade your system with a premium audiophile power cable in any time.

The Thunder SW-15D subwoofer delivers the most powerful, deep bass with staggering definition, location and dynamics never met at this price level before.

It is the absolute best buy in subwoofers!

Design Active subwoofer, 1 driver
TLIE enclosure
Amplifier power 650W RMS
800W Dynamic Peak
Class D, THCA
Frequency response 25Hz - 150Hz
Bassreflex Rear, single, slotted
Bass driver 385mm (15”), paper
Crossover filter frequency 40Hz - 120Hz (variable)
Phase regulation 0°, 180°
Inputs 1 x Line-level (L/R)
1 x SUB (LFE)
1 x High-level (L/R)
Features / accessories Auto On / Off

Single RCA-RCA Subwoofer Cable
Removable Schuko-IEC C13 power cord
AC power / power consumption 110V – 120V 60-50Hz
220V-240V 50/60Hz
450W / <0.5W (Standby Mode)
Dimensions (H x W x D) 50 x 41 x 49.6 cm (incl. grill & feet)
Weight 29.2 kg / pc.
Vinyl colours
Black Black


A subwoofer cabinet design and built-quality is one of the most critical elements influencing sound performance.

We have developed TLIE (Taga Low Interference Enclosures) cabinets to increase stiffness and limit any unwanted resonances of the enclosure.
The TLIE cabinets are built with high density and quality MDF boards and stand on solid feet which provide good isolation from the floor.
MDF front panel thickness: 25mm
MDF top, side, rear and inner walls thickness: 21mm

Acoustic damping material used inside enclosures eliminates problem of internal standing waves. 

Carefully selected high quality vinyl finish is very durable, elegant, imitate natural wood texture and are very pleasant in touch. The vinyl finish is neatly applied to the cabinet using precise machinery to provide the best looks and durability.


1. T-YOKE / Pole piece                                                                           
2. Oversized (155x20mm) ferrite magnet #1  
3. Oversized (155x20mm) ferrite magnet #2     
4. Top plate
5. TSAC rigid metal chassis with anti-oxidation surface process
6. Spider 
7. Copper wire voice coil
8. Paper cone and rubber surround
9. Paper dust cap

THAW - Taga High Amplitude Woofer offers extended cone excursion, which results in increased speed and range. Bass is fast, strong, low and dynamic.
TSAC – Taga Super Air Cooling used in the woofer helps quicker and more effectively dispersion of internal heat to support high power and volumes.

Low-turbulence and high-velocity rear slotted port provides exceptional dispersion of low frequencies and are located very close to the floor.


THCA - Taga High Current 20A Class D Amplifier offers huge amounts of raw power, and oversized, high-performance heatsink quickly dissipates generated heat, increasing efficiency and range of amplifier. 

High Current Amplifier utilizes very well designed boards layout and high quality components to provide reliability and the highest possible bass quality.

An integrated clipping limiter maintains the best performance and safe operation of the amp and woofer even at extremely high volume levels.

User manual (09-2023) Download