Power Acoustik STW Series Woofers

Congratulations on your purchase of one of the finest woofers available for your vehicle today.

If you are an enthusiast that plays your system loud and hard, the STW woofers will take you to the limit. Our small sealed enclosure, high excursion design will move enough air to part your hair. Let your woofers do all the talking to let everyone know you are "Serious about your sound".

Please take a few monents to fill out the warranty card and review this manual before installing this woofer for proper connections and box sizes.

Common Features:

Wide Foam Surround

One Piece Cone/Dust Cap Assembly Large Diameter Poly-Cotton Spider Integrated Tinsel Leads

Dual 4 ohm BASV Voice Coils Reinforced Aluminum Voice Coil Former Die Cast Aluminum Basket

1-Piece Rubber Gasket

Black Chrome Finish Chrome Push Terminals Vented Pole Piece

Specifications:

STW-10

STW-12

800 watts power handling

1000 watts power handling

400 watts RMS

500 watts RMS

100 oz. magnet

120 oz. magnet

2" BASV voice coil

2.5" BASV voice coil

SPL 88 dB

SPL 89 dB

Fs:35 Hz

Fs:32.8 Hz

Vas:.8 cu.ft.

Vas:1.7 cu.ft.

Qms: 8.133 Qes: .4778 Qts:.4513

Qms: 4.49 Qes: .737 Qts:.683

Xmax:.3"

Xmax:.3"

Recommended box sizes

Model

Sealed Box Size

Ported Box Size

Tune Freq.

#of Ports

Port (dia x length)

 

 

 

 

 

 

STW-10

.7 cu. ft.

1 cu. ft.

38 Hz

1

3" x 10"

 

 

 

 

 

 

STW-12

1 cu. ft.

1.5 cu. ft.

35 Hz

1

3" x 7.75"

 

 

 

 

 

 

Building the Enclosure

Determine the dimensions of your enclosure.

Be certain the box dimensions that you have designed will fit in the location you have chosen in your vehicle. Sometimes making a cardboard box with the same outside dimensions is helpful.

It is recommended to use .75* inch thick MDF (medium density fiberboard) to build you speaker box.

Use a "T" square to verify precise right angle cuts before you assemble the box. Use high quality wood glue and screws to assemble the box to guarantee an airtight box that will not come apart due to excess vibrati on and pressure. It is recommended for sealed enclosures to stuff the interior of the box with approximately 50% Dacron or Polyester fiberfill for increased sound damping and woofer performance.

For ported enclosures, it is recommended to staple 1" thick Dacron or Polyestrer insulation to the interior walls of your box.

Use slide on connectors for spade style connectors or bare wire for push and screw terminals. Do not solder the wires to the factory connectors as this may cause damage to the voice coil or tinsel lead and may void your warranty.

Recommended wiring

The following page will give you a few different options to match the impedance of the woofers to the impedance capability of the amplifier. Please read and follow the diagrams closely to insure maximum woofer performance.

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Power Acoustik STW-10 STW-12 owner manual Power Acoustik STW Series Woofers

STW-10 STW-12 specifications

Power Acoustik STW-10 and STW-12 are powerful subwoofers designed for car audio enthusiasts seeking high performance and deep, resonant bass. These models are part of Power Acoustik’s STW series, known for delivering exceptional sound quality and impressive volume levels.

The STW-10 features a 10-inch cone, while the STW-12 comes with a larger 12-inch cone. This size difference allows each subwoofer to cater to various audio preferences and vehicle types. Both models are engineered with a robust cast aluminum frame that ensures durability and strength, allowing them to withstand the rigors of installation in vehicles.

One of the standout features of the STW series is its high power handling capability. The STW-10 can handle peak power of up to 1200 watts and an RMS of 300 watts, while the STW-12 takes it up a notch with a peak power handling of 1500 watts and an RMS of 400 watts. This exceptional power handling ensures that both subwoofers can produce deep bass without distortion, making them ideal for hip-hop, electronic, and other bass-heavy music genres.

The subwoofers utilize a high-temperature voice coil designed to dissipate heat effectively, allowing for extended playtime without overheating. This technology is crucial in maintaining performance over longer listening sessions. The dual 4-ohm voice coil configuration provides flexibility in wiring options, enabling users to achieve desired impedance levels that suit their amplifiers and sound systems.

Additionally, the STW subwoofers feature a treated paper cone that enhances sound clarity and provides a well-defined bass response. Their design prioritizes both aesthetics and acoustics, with a sleek finish that fits well within any car’s interior.

Another notable aspect is their powerful but efficient ferrite magnet, which provides strong magnetic flux for better efficiency and output. Coupled with a sophisticated cooling system, these subwoofers are designed to deliver consistent performance even under heavy use.

In conclusion, the Power Acoustik STW-10 and STW-12 subwoofers offer an excellent combination of power, clarity, and durability. With their high-power handling, efficient cooling systems, and robust construction, they stand out in the market for car audio solutions. Whether for competition or casual listening, these subwoofers are built to impress and elevate the overall audio experience in any vehicle.