NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox

NEW_600W_8_Car_Bass_Box_Audio_Underseat_Active_Amplified_Subwoofer_Boombox_01_qo
NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox
NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox
NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox
NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox
NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox
NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox
NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox
NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox
NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox
NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox
NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox
NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox

NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox
Product Features: 600w Bass, the 68mm Thin Subwoofer Is Directly Installed Under the Passenger Seat 8 Inch High-power Active Subwoofer, Excellent Low Frequency Performance, Pure Low Music Output, Surging Sound Effect Pu Leather Wooden Body High-strength Stainless Steel Horn Protective Net Cover, Black Paint, Not Easy to Rust 1.4mm Thick Mesh Material, Strong Pressure Resistance Frequent Maintenance and Maintenance Will Enable the Speaker to Obtain Longer Battery Life. Wiring: Three Wires Must Be Connected 2. Adaptation: All Cars with 12v Power Supply Can Be Used Product Information: Speaker Size: 8 Inches Total Harmonic Distortion. NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox. 600w Bass, the 68mm Thin Subwoofer Is Directly Installed Under the Passenger Seat. 8 Inch High-power Active Subwoofer, Excellent Low Frequency Performance, Pure Low Music Output, Surging Sound Effect. Pu Leather Wooden Body. Pu Leather-wrapped Wooden Body Reduces Noise Caused by Vibration to a Limited Extent. High-strength Stainless Steel Horn Protective Net Cover, Black Paint, Not Easy to Rust. 1.4mm Thick Mesh Material, Strong Pressure Resistance. Frequent Maintenance and Maintenance Will Enable the Speaker to Obtain Longer Battery Life. Wiring: Three Wires Must Be Connected (If There Is No Sound After Installation, Please Check Whether the Wiring Is Connected to the Three Wires: 12v to the Battery Positive Stage, Rem to the Host Acc or 12v in Series, Gnd Ground). Adaptation: All Cars with 12v Power Supply Can Be Used. Speaker Size: 8 Inches. Signal to Noise Ratio:? 90db. Bass Boost: 0 to+ 12db. Product Size: 345mm 260mm68mm. 18 Inch Car Audio. Wiring: Three Wires Must Be Connected. (If There Is No Sound After Installation, Please Check Whether the Wiring Is Connected to the Three Wires: 12v to the Battery Positive Stage, Rem to the Host Acc or 12v in Series, Gnd Ground). Note: This ultra-thin subwoofer is only a bass supplement and cannot be continuously played loudly. Hinweis: Dieser ultradünne Subwoofer ist nur eine Bassergänzung und kann nicht kontinuierlich laut abgespielt werden. France, Germany, spain, Italy. Feedback is very important to us. It is impossible to address issues if we do not know about them! Please keep the original box or packaging within 15days since item received. Your satisfaction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it’s non-workdays, please kindly be patient and wait till Monday.
NEW 600W 8 Car Bass Box Audio Underseat Active Amplified Subwoofer Boombox

10 Active Underseat Subwoofer Edbx10a-e0 Compact Bass Enclosure 360w Edge

10_Active_Underseat_Subwoofer_Edbx10a_e0_Compact_Bass_Enclosure_360w_Edge_01_fhb
10 Active Underseat Subwoofer Edbx10a-e0 Compact Bass Enclosure 360w Edge
10 Active Underseat Subwoofer Edbx10a-e0 Compact Bass Enclosure 360w Edge
10 Active Underseat Subwoofer Edbx10a-e0 Compact Bass Enclosure 360w Edge
10 Active Underseat Subwoofer Edbx10a-e0 Compact Bass Enclosure 360w Edge
10 Active Underseat Subwoofer Edbx10a-e0 Compact Bass Enclosure 360w Edge
10 Active Underseat Subwoofer Edbx10a-e0 Compact Bass Enclosure 360w Edge
10 Active Underseat Subwoofer Edbx10a-e0 Compact Bass Enclosure 360w Edge

10 Active Underseat Subwoofer Edbx10a-e0 Compact Bass Enclosure 360w Edge
EDGE 10 ACTIVE UNDERSEAT SUBWOOFER EDBX10A-E0. The active car subwoofer Edge EDBX10A-E0 is compact in size, thanks to which it can easily find a place even in a miniature car. The device is suitable for installation under the seat of a vehicle or in any other limited space. Despite its modest dimensions, this representative of car acoustics will please demanding music lovers with a very powerful bass. The design of this model provides for a 180 W power amplifier, which completely controls the sound, transmitting the structure of low frequencies as accurately as possible. Stable and efficient operation of the Edge EDBX10A-E0 car subwoofer is ensured by a carefully designed circuitry. The model with a speaker diameter of 10 is equipped with an external remote control, with which the sound of low-frequency acoustics is adjusted. Maximum power, W: 360. Power RMS, W: 180. Frequency range, Hz: 35 – 200. Case type: closed box. Low Pass Filter: 50 – 150 Hz. Bass boost, dB: 0… Phase rotation, °: 0 / 180. RCA input and high-level input. Automatic switching on upon appearance of full signal at high level input. Supply voltage, V: 12. Case dimensions, mm: 345 x 260 x 73.
10 Active Underseat Subwoofer Edbx10a-e0 Compact Bass Enclosure 360w Edge

Pioneer Underseat Subwoofer

Pioneer_Underseat_Subwoofer_01_oh
Pioneer Underseat Subwoofer
Pioneer Underseat Subwoofer
Pioneer Underseat Subwoofer

Pioneer Underseat Subwoofer
Experience the deep, powerful bass that transforms your vehicle’s audio landscape with the Pioneer Underseat Subwoofer, model number TSWX130EA. Crafted by a brand synonymous with high-quality car audio, this subwoofer is designed to fit seamlessly under your seat, ensuring a compact yet impactful sound experience. Engineered for efficiency and durability, the Pioneer TSWX130EA is a testament to acoustic excellence. Its integration with your vehicle’s existing system is straightforward, allowing you to enjoy the rich, detailed sound that Pioneer is renowned for, without compromising on space.
Pioneer Underseat Subwoofer

Powerbass PB-US62 12 Active Amplified Compact Bass Enclosure subwoofer 150W

Powerbass_PB_US62_12_Active_Amplified_Compact_Bass_Enclosure_subwoofer_150W_01_rip
Powerbass PB-US62 12 Active Amplified Compact Bass Enclosure subwoofer 150W
Powerbass PB-US62 12 Active Amplified Compact Bass Enclosure subwoofer 150W

Powerbass PB-US62 12 Active Amplified Compact Bass Enclosure subwoofer 150W
PB-US62 Amplified Compact Bass Enclosure (Underseat subwoofer). Dual Flat Piston Subwoofers. 12 Total Driver Surface Area. Dual 6 Oval Injection Molded PP Cone Woofers. High And Low Level Input. Selectable Input Sensitivity for use with OEM integration. Auto Turn-On Circuit with High Level Inputs. Remote Gain Control With Power Status Indicator. 8.0″W x 2.75″H x 12.0D. 20 Hz – 200 Hz. Low Level (RCA)/High Level (speaker level). 2.75″ x 12.0″ x 8.0. 50 watts RMS / 150 watts max. 0dB – 12 dB. 50 Hz – 125 Hz. 250 mV – 6V (low level)/1.0V – 10 V. 0.5% at Rated Power. 40 Hz – 200 Hz.
Powerbass PB-US62 12 Active Amplified Compact Bass Enclosure subwoofer 150W

UK 10” Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W

UK_10_Car_Subwoofer_Active_Underseat_Bass_Box_Audio_Sub_Speaker_Amplifier_600W_01_nvnz
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W

UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W
Tip : Any issue about item, feel free to contact our customer service firstly in message, we will offer you best solution until you are satisfied. Max Output Power: 600w / RMS: 90W. High level Input Sensitivity: 0.9v. Low Level Input Sensitivity: 300mV. Low Pass Filter: 50-150Hz. Fully functional and easy to debug. 68 mm Slim fuselage, installed under the seat. Design of high temperature resistant coil. Fine workmanship and good performance. 1 x Active Subwoofer. 1 x Power Cord. 1 x Grounding OFC Wire. 1 x Audio Line. 1 x Control Line. 1 x Subwoofer High Level Input Line. 1 x Installation Package. 1 x User Manual. But, we’d like to assist you to receive the goods smoothly if there are anything we can do here. We will check and offer a good solution to you. Reason is because transit time is highly depended and provided by postal service (except weekends and holidays). We are only responsible for once re-sending expense for replacement due to defects. We have always been doing our best to provide the best service and reliable products for every customer. We will reply your emails and questions within 24 hours.
UK 10'' Car Subwoofer Active Underseat Bass Box Audio Sub Speaker Amplifier 600W

VIBE OPTISOUNDAUTO10A-V4 Optisound Slimline 10 Active Car Subwoofer 900 Watts

VIBE_OPTISOUNDAUTO10A_V4_Optisound_Slimline_10_Active_Car_Subwoofer_900_Watts_01_to
VIBE OPTISOUNDAUTO10A-V4 Optisound Slimline 10 Active Car Subwoofer 900 Watts
VIBE OPTISOUNDAUTO10A-V4 Optisound Slimline 10 Active Car Subwoofer 900 Watts
VIBE OPTISOUNDAUTO10A-V4 Optisound Slimline 10 Active Car Subwoofer 900 Watts
VIBE OPTISOUNDAUTO10A-V4 Optisound Slimline 10 Active Car Subwoofer 900 Watts
VIBE OPTISOUNDAUTO10A-V4 Optisound Slimline 10 Active Car Subwoofer 900 Watts

VIBE OPTISOUNDAUTO10A-V4 Optisound Slimline 10 Active Car Subwoofer 900 Watts
VIBE OPTISOUNDAUTO10A-V4 Optisound Slimline 10 Active Car Subwoofer 900 Watts. The OPTISOUNDAUTO10 active enclosure features an industry-first integrated DSP mono amplifier, providing advanced control over bass sound reproduction. Users can customize their listening experience and adapt it to various audio sources and environments using the smartphone app. All within a compact enclosure. Dimensions – 89(H) x 316 (W)x 400mm(D). RMS Power 300 watts. Peak Power 900 watts.
VIBE OPTISOUNDAUTO10A-V4 Optisound Slimline 10 Active Car Subwoofer 900 Watts

8inch Car Under Seat Subwoofer Bass Slim Amplifier Bass High Power Speaker 600W

8inch_Car_Under_Seat_Subwoofer_Bass_Slim_Amplifier_Bass_High_Power_Speaker_600W_01_zqyx
8inch Car Under Seat Subwoofer Bass Slim Amplifier Bass High Power Speaker 600W
8inch Car Under Seat Subwoofer Bass Slim Amplifier Bass High Power Speaker 600W
8inch Car Under Seat Subwoofer Bass Slim Amplifier Bass High Power Speaker 600W
8inch Car Under Seat Subwoofer Bass Slim Amplifier Bass High Power Speaker 600W
8inch Car Under Seat Subwoofer Bass Slim Amplifier Bass High Power Speaker 600W
8inch Car Under Seat Subwoofer Bass Slim Amplifier Bass High Power Speaker 600W
8inch Car Under Seat Subwoofer Bass Slim Amplifier Bass High Power Speaker 600W
8inch Car Under Seat Subwoofer Bass Slim Amplifier Bass High Power Speaker 600W
8inch Car Under Seat Subwoofer Bass Slim Amplifier Bass High Power Speaker 600W
8inch Car Under Seat Subwoofer Bass Slim Amplifier Bass High Power Speaker 600W

8inch Car Under Seat Subwoofer Bass Slim Amplifier Bass High Power Speaker 600W
8 Inch Active subwoofer Auto 600W Amplified Slim Underseat Car Audio Amplifier. Note: This ultra-thin subwoofer is only a bass supplement and cannot be continuously played loudly. 600w Bass, the 68mm Thin Subwoofer Is Directly Installed Under the Passenger Seat. 8 Inch High-power Active Subwoofer, Excellent Low Frequency Performance, Pure Low Music Output, Surging Sound Effect. Pu Leather Wooden Body. Pu Leather-wrapped Wooden Body Reduces Noise Caused by Vibration to a Limited Extent. High-strength Stainless Steel Horn Protective Net Cover, Black Paint, Not Easy to Rust. 1.4mm Thick Mesh Material, Strong Pressure Resistance. Frequent Maintenance and Maintenance Will Enable the Speaker to Obtain Longer Battery Life. Wiring: Three Wires Must Be Connected (If There Is No Sound After Installation, Please Check Whether the Wiring Is Connected to the Three Wires: 12v to the Battery Positive Stage, Rem to the Host Acc or 12v in Series, Gnd Ground). Adaptation: All Cars with 12v Power Supply Can Be Used. Speaker Size: 8 Inches. Signal to Noise Ratio:? 90db. Bass Boost: 0 to+ 12db. Product Size: 345mm 260mm68mm. 18 Inch Car Audio. Wiring: Three Wires Must Be Connected. (If There Is No Sound After Installation, Please Check Whether the Wiring Is Connected to the Three Wires: 12v to the Battery Positive Stage, Rem to the Host Acc or 12v in Series, Gnd Ground). France, Germany, spain, Italy. Feedback is very important to us. It is impossible to address issues if we do not know about them! Please keep the original box or packaging within 15days since item received. Your satisfaction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it’s non-workdays, please kindly be patient and wait till Monday.
8inch Car Under Seat Subwoofer Bass Slim Amplifier Bass High Power Speaker 600W

2x Car Active Subwoofer 8” 800W Underseat Amplifier Speaker Audio Sub-Woofer UK

2x_Car_Active_Subwoofer_8_800W_Underseat_Amplifier_Speaker_Audio_Sub_Woofer_UK_01_zd
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK

2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK
8” 800W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier UK. 8” Bass Box in-vehicle Subwoofer Sub Speaker Amplifier 800W Fits Car SUV Van. 600W 10 Car Subwoofer Audio Sub Speaker Active Rectangular Drive-By-Wire Black. 1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier. 2X Car Active Subwoofer 8” 800W Under-Seat Amplifier Speaker Audio SubWoofer UK. 600W 10 Car Subwoofer Active Bass Box Audio Sub Speaker Amplifier Underseat UK. Notes: Not for trucks. Speaker unit size: 8. Size(L X W X H): 350mm x 245mm x 85mm / 13.78 ” x 9.65″ x 3.3. Sound type: full frequency (with treble) subwoofer. 8 Amplified Low Profile Subwoofer System offers a maximum power of 800 watts. It lets you pump out some great low frequency bass volume to enhance the party vibe making it a great addition to your car music audio system. The integrated amp in the compact subwoofer features low pass crossovers & a control for adjusting input sensitivity from 0.12V to 3.5V. Includes variable bass boost, control the subwoofer level w/ the remote level control module. With height of just 3.3, it’s a perfect solution when space is an issue, it can easily fit under the seat of most vehicles! Total dimension is 13.78 ” x 9.65″ x 3.3 & includes mounting hardware. A great addition to your car stereo sound system. High & Low Level Inputs. A low level (RCA) input is measured in voltages. A high level (+/- wire) input is measured in wattages. Both essentially carry signal from your receiver to your amplifier to your speakers. Variable Bass Boost allows you to adjust the low bass within the boost range to just the way you like it. The gain control is not for adjusting volume. It simply adjusts the amount of signal that is coming from your receiver and going to your amplifier. The external configuration of high strength stainless steel horn protection net cover. 8 inch 800W high power design, with the volume controller. Low frequency ability of the bass horn, high quality low tone output. Fine workmanship and good performance. Easy to install, can be installed directly under the driver’s seat. Durable in use. We provide clear pictures, measurements where possible. Please check as much as possible to make sure the item is the one that you need. Please allow 0.5-1 inch difference due to manual measurement. Although instruction is included. Professional Installation Is Highly Recommended! Installation instruciton not inclued. If you are satisfied with our item, could you kindly give us 5 stars feedback? Thank you for your cooperation! We check all items before sending out. All products are brand new, never been used or refurbished. We are not responsible for wrong or undeliverable address. We are only responsible for once re-sending expense for replacement due to defects. Good communication is helpful for both of us to resolve any problems and issues. We have always been doing our best to provide the best service and reliable products for every customer. We will reply your emails and questions within 24 hours. We are a company specializing in motorcycle racing parts accessories, Industry accessories, Home Garden accessories, we provide high-quality products at affordable prices and excellent service.
2x Car Active Subwoofer 8'' 800W Underseat Amplifier Speaker Audio Sub-Woofer UK

1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6×8

1200W_Active_Underseat_Car_Bass_Box_Audio_Subwoofer_Sub_Speaker_Amplifier_6x8_01_sqci
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8

1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8
600W 10 Car Subwoofer Audio Sub Speaker Active Rectangular Drive-By-Wire Black. 600W 10 Car Subwoofer Active Bass Box Audio Sub Speaker Amplifier Underseat UK. 8” 800W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier UK. 2X Car Active Subwoofer 8” 800W Under-Seat Amplifier Speaker Audio SubWoofer UK. 1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier. 8” Bass Box in-vehicle Subwoofer Sub Speaker Amplifier 800W Fits Car SUV Van. Please contract us firstly If there are any problems when you received the package. Max Output Power: 1200W. High level Input Sensitivity: 0.9v. Low Level Input Sensitivity: 300mV. Low Pass Filter: 50-150Hz. Fully functional and easy to debug. Slim fuselage, installed under the seat. Design of high temperature resistant coil. Fine workmanship and good performance. 6″8″ speaker gives A different kind of heavy bass effect. We check all items before sending out. All products are brand new, never been used or refurbished. Most packets arrive in 5 days. If there is any delay, it may be caused by bad weather, busy season and some other reasons. We are not responsible for wrong or undeliverable address. We are only responsible for once re-sending expense for replacement due to defects. Good communication is helpful for both of us to resolve any problems and issues. We have always been doing our best to provide the best service and reliable products for every customer. We will reply your emails and questions within 24 hours. We are a company specializing in motorcycle racing parts accessories, Industry accessories, Home Garden accessories, we provide high-quality products at affordable prices and excellent service.
1200W Active Underseat Car Bass Box Audio Subwoofer Sub Speaker Amplifier 6x8