The ECOXGEAR ExtremeTower ETBB08 is a pair of 8" marine tower speakers in which both speakers are Bluetooth-amplified and each runs from its own removable, rechargeable 12V 13.4Ah lithium-ion battery pack. It is the no-wiring option in the ExtremeTower range: your phone connects to one speaker over Bluetooth 5.0, the two speakers link to each other wirelessly through EcoCast, and nothing has to be run to the boat or vehicle’s 12V supply – although an optional 12V connection (cabling included) charges the packs while the engine is running, and two mains chargers are included for charging at home. Each speaker has its own amplifier, FM tuner, addressable RGB LEDs with a built-in LEDCast lighting controller and a white LED dome light, and the set links to up to 100 other ECOXGEAR SoundExtreme products through EcoCast. Sealed IP66 ASA enclosures and 360° rotating quick-release clamps for 38–76mm (1.5–3") bars complete the set. This is the white version; a black version is also available.

Key Features

• Two amplified speakers, two battery packs: each speaker has its own amplifier and its own removable 12V 13.4Ah lithium-ion pack – there is no passive speaker and no speaker-to-speaker cable
• No wiring needed: Bluetooth from your phone to one speaker, and the two speakers connect to each other over EcoCast; an optional 12V connection charges the packs while the engine runs, and two mains chargers are included
• Bluetooth 5.0 and FM tuner: long-range Bluetooth streaming from your phone, plus an FM tuner with internal antenna and a jack for an optional external FM antenna (sold separately)
• Built-in LEDCast lighting controller: addressable RGB LEDs on both speakers with no separate controller needed; control them from the speaker buttons, the included RF remotes or the SoundExtreme app for iOS and Android
• EcoCast wireless linking: pairs with up to 100 EcoCast-enabled ECOXGEAR SoundExtreme soundbars, subwoofers and speakers
• Mono or stereo: set the output to mono or left/right stereo to suit the layout
• 8" 2-way marine drivers: UV-protected polypropylene and carbon-fibre blend woofer with Santoprene rubber surround and a 1.5" titanium tweeter with double neodymium magnet; handles up to 100W RMS (250W peak)
• Dual white LED dome lights: one on each speaker
• IP66 waterproof and dustproof: sealed ASA enclosures for UV resistance, with water- and sand-proof Aviator and Deutsch connectors for audio and LED
• 360° rotating quick-release mount: Allen key and no-tool quick-release knob included; clamp fits 38–76mm (1.5–3") diameter bars, with salt-corrosion-resistant 316 stainless steel screws and aluminium alloy mounts

Specifications

• Model: ExtremeTower ETBB08 / TBB8 – White (SEI-ETAMPBAT7708AU)
• Configuration: 2 × battery-powered Bluetooth amplified 8" 2-way tower speakers
• Amplifier: 2 × 200W Bluetooth amplifiers (one per speaker)
• Battery: 2 × removable, rechargeable 12V 13.4Ah lithium-ion packs (one per speaker); 2 mains chargers included
• Power input: optional 12V connection to the boat or vehicle supply (cabling included)
• Power handling: up to 100W RMS (250W peak)
• Frequency response: 50Hz–21kHz
• Sensitivity: 92dB
• Impedance: 3 ohms
• Wireless: Bluetooth 5.0, EcoCast (up to 100 devices) – also links the two speakers to each other; RF remote, SoundExtreme app
• Tuner: FM, internal antenna, jack for optional external FM antenna
• Lighting: addressable RGB LEDs with built-in LEDCast controller; white LED dome light on each speaker
• Woofer: 8" UV-protected polypropylene and carbon-fibre blend, Santoprene rubber surround
• Tweeter: 1.5" titanium, double neodymium magnet
• Water & dust rating: IP66; UV-resistant ASA enclosure
• Connectors: water- and sand-proof Aviator and Deutsch connectors for audio and LED
• Mount: 360° rotating quick-release clamp, fits 38–76mm (1.5–3") bars; 316 stainless steel screws, aluminium alloy mounts
• Dimensions (each): 227mm W × 267mm H × 303mm D (341mm high with mount)
• Weight (each): 3.7kg (4.38kg with mount)
• Colour: White

What’s in the Box

• 2 × ETBB08 battery-powered Bluetooth amplified tower speakers (white)
• 2 × 12V 13.4Ah lithium-ion battery packs
• 2 × battery chargers
• Rotatable mounts and mounting hardware
• Cabling for optional connection to the boat or vehicle’s 12V supply (through-tower and outside-cage options)
• 2 × RF remote controls
• 1 × hardware installation guide
• 1 × user guide

Warranty: 12-month ECOXGEAR Australia warranty, extendable to 3 years with free online product registration.

The ECOXGEAR ExtremeTower ETB08 is a two-speaker 8" marine tower set: one battery-powered Bluetooth-amplified speaker and one passive speaker. The amplified speaker runs from a removable, rechargeable 12V 13.4Ah lithium-ion battery pack, so the set keeps playing with the engine off and can be fitted without running 12V wiring – an optional 12V connection to the boat or vehicle (cabling included) charges the pack while the engine is running, and the included mains charger recharges it at home. The passive speaker wires to the amplified one, which carries the amplifier, Bluetooth 5.0, FM tuner and a built-in LEDCast lighting controller for the addressable RGB LEDs on both speakers, and links to up to 100 other ECOXGEAR SoundExtreme products through EcoCast. Sealed IP66 ASA enclosures and 360° rotating quick-release clamps for 38–76mm (1.5–3") bars complete the set. This is the white version; a black version is also available.

Key Features

• One battery-powered amplified speaker, one passive: the amplified speaker’s built-in amplifier drives both; the passive speaker must be wired to it (through-tower and outside-cage cables included)
• Runs on battery – 12V optional: a removable, rechargeable 12V 13.4Ah lithium-ion pack keeps the music going with the engine off; an optional 12V DC (25A) connection charges the pack while the engine runs, and a mains charger is included for charging at home
• Bluetooth 5.0 and FM tuner: long-range Bluetooth streaming from your phone, plus an FM tuner with internal antenna and a jack for an optional external FM antenna (sold separately)
• Built-in LEDCast lighting controller: addressable RGB LEDs on both speakers with no separate controller needed; control them from the speaker buttons, the included RF remotes or the SoundExtreme app for iOS and Android
• EcoCast wireless linking: pairs with up to 100 EcoCast-enabled ECOXGEAR SoundExtreme soundbars, subwoofers and speakers
• Mono or stereo: set the output to mono or left/right stereo to suit the layout
• 8" 2-way marine drivers: UV-protected polypropylene and carbon-fibre blend woofer with Santoprene rubber surround and a 1.5" titanium tweeter with double neodymium magnet; handles up to 100W RMS (250W peak)
• White LED dome light: on the amplified speaker
• IP66 waterproof and dustproof: sealed ASA enclosures for UV resistance, with water- and sand-proof Aviator and Deutsch connectors for audio and LED
• 360° rotating quick-release mount: Allen key and no-tool quick-release knob included; clamp fits 38–76mm (1.5–3") diameter bars, with salt-corrosion-resistant 316 stainless steel screws and aluminium alloy mounts

Specifications

• Model: ExtremeTower ETB08 / TB8 – White (SEI-ETBAT7708AU)
• Configuration: 1 × battery-powered Bluetooth amplified 8" 2-way tower speaker + 1 × passive 8" 2-way tower speaker
• Amplifier: 200W Bluetooth amplifier built into the amplified speaker
• Battery: 1 × removable, rechargeable 12V 13.4Ah lithium-ion pack; mains charger included
• Power input: optional 12V DC (25A) connection to the boat or vehicle supply
• Power handling: up to 100W RMS (250W peak)
• Frequency response: 50Hz–21kHz
• Sensitivity: 92dB
• Impedance: 3 ohms
• Wireless: Bluetooth 5.0, EcoCast (up to 100 devices), RF remote, SoundExtreme app
• Tuner: FM, internal antenna, jack for optional external FM antenna
• Lighting: addressable RGB LEDs with built-in LEDCast controller; white LED dome light on the amplified speaker
• Woofer: 8" UV-protected polypropylene and carbon-fibre blend, Santoprene rubber surround
• Tweeter: 1.5" titanium, double neodymium magnet
• Water & dust rating: IP66; UV-resistant ASA enclosure
• Connectors: water- and sand-proof Aviator and Deutsch connectors for audio and LED
• Mount: 360° rotating quick-release clamp, fits 38–76mm (1.5–3") bars; 316 stainless steel screws, aluminium alloy mounts
• Dimensions (each): 227mm W × 267mm H × 303mm D (341mm high with mount)
• Weight (each): 3.7kg (4.38kg with mount)
• Colour: White

What’s in the Box

• 1 × ETB08 battery-powered Bluetooth amplified tower speaker (white)
• 1 × ETB08 passive tower speaker (white)
• 1 × 12V 13.4Ah lithium-ion battery pack
• 1 × battery charger
• Rotatable mounts and mounting hardware
• Cabling for optional connection to the boat or vehicle’s 12V supply (through-tower and outside-cage options)
• 2 × RF remote controls
• 1 × hardware installation guide
• 1 × user guide

Warranty: 12-month ECOXGEAR Australia warranty, extendable to 3 years with free online product registration.

The ECOXGEAR ExtremeTower ETB08 is a two-speaker 8" marine tower set: one battery-powered Bluetooth-amplified speaker and one passive speaker. The amplified speaker runs from a removable, rechargeable 12V 13.4Ah lithium-ion battery pack, so the set keeps playing with the engine off and can be fitted without running 12V wiring – an optional 12V connection to the boat or vehicle (cabling included) charges the pack while the engine is running, and the included mains charger recharges it at home. The passive speaker wires to the amplified one, which carries the amplifier, Bluetooth 5.0, FM tuner and a built-in LEDCast lighting controller for the addressable RGB LEDs on both speakers, and links to up to 100 other ECOXGEAR SoundExtreme products through EcoCast. Sealed IP66 ASA enclosures and 360° rotating quick-release clamps for 38–76mm (1.5–3") bars complete the set. This is the black version; a white version is also available.

Key Features

• One battery-powered amplified speaker, one passive: the amplified speaker’s built-in amplifier drives both; the passive speaker must be wired to it (through-tower and outside-cage cables included)
• Runs on battery – 12V optional: a removable, rechargeable 12V 13.4Ah lithium-ion pack keeps the music going with the engine off; an optional 12V DC (25A) connection charges the pack while the engine runs, and a mains charger is included for charging at home
• Bluetooth 5.0 and FM tuner: long-range Bluetooth streaming from your phone, plus an FM tuner with internal antenna and a jack for an optional external FM antenna (sold separately)
• Built-in LEDCast lighting controller: addressable RGB LEDs on both speakers with no separate controller needed; control them from the speaker buttons, the included RF remotes or the SoundExtreme app for iOS and Android
• EcoCast wireless linking: pairs with up to 100 EcoCast-enabled ECOXGEAR SoundExtreme soundbars, subwoofers and speakers
• Mono or stereo: set the output to mono or left/right stereo to suit the layout
• 8" 2-way marine drivers: UV-protected polypropylene and carbon-fibre blend woofer with Santoprene rubber surround and a 1.5" titanium tweeter with double neodymium magnet; handles up to 100W RMS (250W peak)
• White LED dome light: on the amplified speaker
• IP66 waterproof and dustproof: sealed ASA enclosures for UV resistance, with water- and sand-proof Aviator and Deutsch connectors for audio and LED
• 360° rotating quick-release mount: Allen key and no-tool quick-release knob included; clamp fits 38–76mm (1.5–3") diameter bars, with salt-corrosion-resistant 316 stainless steel screws and aluminium alloy mounts

Specifications

• Model: ExtremeTower ETB08 / TB8 – Black (SEI-ETBAT7701AU)
• Configuration: 1 × battery-powered Bluetooth amplified 8" 2-way tower speaker + 1 × passive 8" 2-way tower speaker
• Amplifier: 200W Bluetooth amplifier built into the amplified speaker
• Battery: 1 × removable, rechargeable 12V 13.4Ah lithium-ion pack; mains charger included
• Power input: optional 12V DC (25A) connection to the boat or vehicle supply
• Power handling: up to 100W RMS (250W peak)
• Frequency response: 50Hz–21kHz
• Sensitivity: 92dB
• Impedance: 3 ohms
• Wireless: Bluetooth 5.0, EcoCast (up to 100 devices), RF remote, SoundExtreme app
• Tuner: FM, internal antenna, jack for optional external FM antenna
• Lighting: addressable RGB LEDs with built-in LEDCast controller; white LED dome light on the amplified speaker
• Woofer: 8" UV-protected polypropylene and carbon-fibre blend, Santoprene rubber surround
• Tweeter: 1.5" titanium, double neodymium magnet
• Water & dust rating: IP66; UV-resistant ASA enclosure
• Connectors: water- and sand-proof Aviator and Deutsch connectors for audio and LED
• Mount: 360° rotating quick-release clamp, fits 38–76mm (1.5–3") bars; 316 stainless steel screws, aluminium alloy mounts
• Dimensions (each): 227mm W × 267mm H × 303mm D (341mm high with mount)
• Weight (each): 3.7kg (4.38kg with mount)
• Colour: Black

What’s in the Box

• 1 × ETB08 battery-powered Bluetooth amplified tower speaker (black)
• 1 × ETB08 passive tower speaker (black)
• 1 × 12V 13.4Ah lithium-ion battery pack
• 1 × battery charger
• Rotatable mounts and mounting hardware
• Cabling for optional connection to the boat or vehicle’s 12V supply (through-tower and outside-cage options)
• 2 × RF remote controls
• 1 × hardware installation guide
• 1 × user guide

Warranty: 12-month ECOXGEAR Australia warranty, extendable to 3 years with free online product registration.

The ECOXGEAR ExtremeTower ETA08 is a two-speaker 8" marine tower set made up of one Bluetooth-amplified speaker and one passive speaker. The amplified speaker carries the amplifier, Bluetooth 5.0, FM tuner and a built-in LEDCast lighting controller, and the passive speaker wires to it, so there is no separate amplifier or LED controller to fit. This set has no battery: it runs from the boat or vehicle’s 12V supply (12V, 20A) and needs to be wired in – choose the ETB08 or ETBB08 if you want battery power. EcoCast links the set wirelessly with up to 100 other ECOXGEAR SoundExtreme soundbars, subwoofers and speakers, both speakers have addressable RGB LEDs, the amplified speaker adds a white LED dome light, and the sealed IP66 ASA enclosures sit on 360° rotating quick-release clamps for 38–76mm (1.5–3") bars. This is the black version; a white version is also available.

Key Features

• One amplified, one passive: the amplified speaker’s built-in amplifier drives both speakers; the passive speaker wires to it through the included cables, routed inside the tower tube or along the outside of the cage
• 12V powered – no battery: runs from the boat or vehicle’s 12V supply (12V, 20A). For battery power see the ETB08 (one battery pack) or ETBB08 (two battery packs)
• Bluetooth 5.0 and FM tuner: long-range Bluetooth streaming from your phone, plus an FM tuner with internal antenna and a jack for an optional external FM antenna (sold separately)
• Built-in LEDCast lighting controller: addressable RGB LEDs on both speakers with no separate controller needed; control them from the speaker buttons, the included RF remotes or the SoundExtreme app for iOS and Android
• EcoCast wireless linking: pairs with up to 100 EcoCast-enabled ECOXGEAR SoundExtreme soundbars, subwoofers and speakers
• Mono or stereo: set the output to mono or left/right stereo to suit the layout
• 8" 2-way marine drivers: UV-protected polypropylene and carbon-fibre blend woofer with Santoprene rubber surround and a 1.5" titanium tweeter with double neodymium magnet; handles up to 100W RMS (250W peak)
• White LED dome light: on the amplified speaker
• IP66 waterproof and dustproof: sealed ASA enclosures for UV resistance, with water- and sand-proof Aviator and Deutsch connectors for audio and LED
• 360° rotating quick-release mount: Allen key and no-tool quick-release knob included; clamp fits 38–76mm (1.5–3") diameter bars, with salt-corrosion-resistant 316 stainless steel screws and aluminium alloy mounts

Specifications

• Model: ExtremeTower ETA08 / TA8 – Black (SEI-ETAMP7701AU)
• Configuration: 1 × Bluetooth amplified 8" 2-way tower speaker + 1 × passive 8" 2-way tower speaker
• Amplifier: 200W Bluetooth amplifier built into the amplified speaker
• Power handling: up to 100W RMS (250W peak)
• Frequency response: 50Hz–21kHz
• Sensitivity: 92dB
• Impedance: 3 ohms
• Wireless: Bluetooth 5.0, EcoCast (up to 100 devices), RF remote, SoundExtreme app
• Tuner: FM, internal antenna, jack for optional external FM antenna
• Lighting: addressable RGB LEDs with built-in LEDCast controller; white LED dome light on the amplified speaker
• Power: 12V DC, 20A from the boat or vehicle supply; no battery
• Woofer: 8" UV-protected polypropylene and carbon-fibre blend, Santoprene rubber surround
• Tweeter: 1.5" titanium, double neodymium magnet
• Water & dust rating: IP66; UV-resistant ASA enclosure
• Connectors: water- and sand-proof Aviator and Deutsch connectors for audio and LED
• Mount: 360° rotating quick-release clamp, fits 38–76mm (1.5–3") bars; 316 stainless steel screws, aluminium alloy mounts
• Dimensions (each): 227mm W × 267mm H × 303mm D (341mm high with mount)
• Weight (each): 3.7kg (4.38kg with mount)
• Colour: Black

What’s in the Box

• 1 × ETA08 Bluetooth amplified tower speaker (black)
• 1 × ETA08 passive tower speaker (black)
• Rotatable mounts and mounting hardware
• Cabling for connection to the boat or vehicle’s 12V supply (through-tower and outside-cage options)
• 2 × RF remote controls
• 1 × hardware installation guide
• 1 × user guide

Warranty: 12-month ECOXGEAR Australia warranty, extendable to 3 years with free online product registration.

The ECOXGEAR ExtremeTower ET08 is a pair of passive 8" 2-way marine tower speakers built for wakeboard towers, roll cages and bars on boats, side-by-sides and 4WDs. Both speakers in this set are passive: there is no built-in amplifier or battery, so they wire to an amplifier or head unit (sold separately), and the built-in addressable RGB LEDs need an LEDCast-enabled controller or LEDCast radio (sold separately) to light up. Each speaker pairs an 8" UV-protected woofer with a 1.5" titanium tweeter in a sealed IP66 ASA enclosure, and sits on a 360° rotating quick-release clamp that fits 38–76mm (1.5–3") bars. This is the white version; a black version is also available.

Key Features

• Passive pair – amplifier required: no built-in amplifier or battery; both speakers connect to your own amplifier or head unit (sold separately). For self-powered sets see the ETA08 (amplified), ETB08 and ETBB08 (battery-powered)
• 8" 2-way marine drivers: UV-protected polypropylene and carbon-fibre blend woofer with Santoprene rubber surround and a 1.5" titanium tweeter with double neodymium magnet; handles up to 100W RMS (250W peak)
• Built-in addressable RGB LEDs: LEDCast lighting run by an LEDCast controller or LEDCast radio (sold separately and required for the LEDs)
• IP66 waterproof and dustproof: sealed ASA enclosures for UV resistance, with water- and sand-proof Aviator and Deutsch connectors for audio and LED
• 360° rotating quick-release mount: Allen key and no-tool quick-release knob included; clamp fits 38–76mm (1.5–3") diameter bars
• Marine-grade hardware: salt-corrosion-resistant 316 stainless steel screws and aluminium alloy mounts
• Two cable routing options: run the cables inside the tower tube or along the outside of the roll cage

Specifications

• Model: ExtremeTower ET08 – White (SEI-ET7708AU)
• Configuration: 2 × passive 8" 2-way tower speakers
• Power handling: up to 100W RMS (250W peak)
• Frequency response: 50Hz–21kHz
• Sensitivity: 92dB
• Impedance: 3 ohms
• Lighting: built-in addressable RGB LEDs, LEDCast (LEDCast controller or LEDCast radio required, sold separately)
• Woofer: 8" UV-protected polypropylene and carbon-fibre blend, Santoprene rubber surround
• Tweeter: 1.5" titanium, double neodymium magnet
• Water & dust rating: IP66; UV-resistant ASA enclosure
• Connectors: water- and sand-proof Aviator and Deutsch connectors for audio and LED
• Mount: 360° rotating quick-release clamp, fits 38–76mm (1.5–3") bars; 316 stainless steel screws, aluminium alloy mounts
• Dimensions (each): 227mm W × 267mm H × 303mm D (341mm high with mount)
• Weight (each): 3.7kg (4.38kg with mount)
• Colour: White

What’s in the Box

• 2 × ET08 passive tower speakers (white)
• Rotatable mounts and mounting hardware
• Speaker cabling (through-tower and outside-cage routing options)
• 1 × hardware installation guide
• 1 × user guide

Warranty: Backed by ECOXGEAR Australia's manufacturer warranty.

The ECOXGEAR ExtremeTower ET08 is a pair of passive 8" 2-way marine tower speakers built for wakeboard towers, roll cages and bars on boats, side-by-sides and 4WDs. Both speakers in this set are passive: there is no built-in amplifier or battery, so they wire to an amplifier or head unit (sold separately), and the built-in addressable RGB LEDs need an LEDCast-enabled controller or LEDCast radio (sold separately) to light up. Each speaker pairs an 8" UV-protected woofer with a 1.5" titanium tweeter in a sealed IP66 ASA enclosure, and sits on a 360° rotating quick-release clamp that fits 38–76mm (1.5–3") bars. This is the black version; a white version is also available.

Key Features

• Passive pair – amplifier required: no built-in amplifier or battery; both speakers connect to your own amplifier or head unit (sold separately). For self-powered sets see the ETA08 (amplified), ETB08 and ETBB08 (battery-powered)
• 8" 2-way marine drivers: UV-protected polypropylene and carbon-fibre blend woofer with Santoprene rubber surround and a 1.5" titanium tweeter with double neodymium magnet; handles up to 100W RMS (250W peak)
• Built-in addressable RGB LEDs: LEDCast lighting run by an LEDCast controller or LEDCast radio (sold separately and required for the LEDs)
• IP66 waterproof and dustproof: sealed ASA enclosures for UV resistance, with water- and sand-proof Aviator and Deutsch connectors for audio and LED
• 360° rotating quick-release mount: Allen key and no-tool quick-release knob included; clamp fits 38–76mm (1.5–3") diameter bars
• Marine-grade hardware: salt-corrosion-resistant 316 stainless steel screws and aluminium alloy mounts
• Two cable routing options: run the cables inside the tower tube or along the outside of the roll cage

Specifications

• Model: ExtremeTower ET08 – Black (SEI-ET7701AU)
• Configuration: 2 × passive 8" 2-way tower speakers
• Power handling: up to 100W RMS (250W peak)
• Frequency response: 50Hz–21kHz
• Sensitivity: 92dB
• Impedance: 3 ohms
• Lighting: built-in addressable RGB LEDs, LEDCast (LEDCast controller or LEDCast radio required, sold separately)
• Woofer: 8" UV-protected polypropylene and carbon-fibre blend, Santoprene rubber surround
• Tweeter: 1.5" titanium, double neodymium magnet
• Water & dust rating: IP66; UV-resistant ASA enclosure
• Connectors: water- and sand-proof Aviator and Deutsch connectors for audio and LED
• Mount: 360° rotating quick-release clamp, fits 38–76mm (1.5–3") bars; 316 stainless steel screws, aluminium alloy mounts
• Dimensions (each): 227mm W × 267mm H × 303mm D (341mm high with mount)
• Weight (each): 3.7kg (4.38kg with mount)
• Colour: Black

What’s in the Box

• 2 × ET08 passive tower speakers (black)
• Rotatable mounts and mounting hardware
• Speaker cabling (through-tower and outside-cage routing options)
• 1 × hardware installation guide
• 1 × user guide

Warranty: Backed by ECOXGEAR Australia's manufacturer warranty.