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Fonestar SKY-8T-SUB 8" 60W 100V line transformer ceiling subwoofer
Fonestar SKY-8T-SUB 8" 60W 100V line transformer ceiling subwoofer
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SKY-8T-SUB | Passive Ceiling Subwoofer
Complete your architectural audio system with deep, hidden bass—engineered for seamless integration and high-fidelity low-end reinforcement.
The SKY-8T-SUB is a high-performance ceiling-mount passive subwoofer designed to add depth and "body" to your audio installation without occupying a single inch of floor space. As part of the minimalist SKY series, it features an ultra-low-profile magnetic grille that perfectly matches our full-range ceiling speakers. It is the ideal solution for retail stores, high-end restaurants, and corporate environments that require a rich, full-range musical experience while maintaining a completely clean architectural ceiling line.
Key Features
Invisible Low-End: Features the signature SKY series frameless magnetic grille, allowing the subwoofer to blend perfectly into the ceiling for a modern, flush look.
Dual Power Modes: Equipped with a 100V line transformer for professional distributed systems and an 8Ω bypass for high-quality low-impedance audio.
High-Excursion 8" Driver: Specially tuned to deliver warm, impactful bass that fills the frequency gap often left by standard 3" or 5" ceiling speakers.
Shallow Mounting Depth: Designed to fit into standard suspended ceilings and voids where traditional bulky subwoofers cannot be installed.
Unified Aesthetics: Shares the same visual design language as the SKY-3T and SKY-5T, ensuring visual consistency throughout your entire facility.
Why Choose the SKY-8T-SUB?
Enhanced Soundscape, Zero Clutter
Standard ceiling speakers are excellent for voice and background melodies but often lack the "thump" required for modern music. The SKY-8T-SUB rounds out the sound, making your audio system feel professional and expensive without the need for a large box sitting on the floor.
Total Design Flexibility
Whether you are using a 100V line system to cover a massive department store or a high-fidelity 8Ω setup for a boutique showroom, this subwoofer adapts to your power needs. The built-in multi-tap transformer allows you to balance the bass levels perfectly against your satellite speakers.
Efficient Installation
With its integrated "dog-ear" mounting tabs and magnetic grille, the SKY-8T-SUB installs as easily as a standard ceiling speaker. The low 115 mm depth ensures it can be placed in almost any ceiling void, giving you the freedom to place bass exactly where the room needs it most.
Subwoofer Specification
Subwoofer Specification
FEATURES: Ceiling subwoofer speaker with 100 V line transformer.
Excellent bass response.
Frameless, low-profile grille made of oxidation-resistant aluminum. Removable, lockable by rotation. The logo can be removed and painted.
Quick connection terminals with high conductivity.
Anti-drop system to aid installation.
Safety cable hook.
Stable ceiling mounting brackets with worm-screw system.
Protection against dust and water.
POWER: 60 W RMS
80 W MAX.
SPEAKER: 8'' polypropylene diaphragm
RESPONSE: 50-200 Hz @ -10 dB
60-145 Hz @ -3 dB
IMPEDANCE: 60 W RMS@100 V (166 Ω)
40 W RMS@100 V (250 Ω)
30 W RMS@70 V (166 Ω)
20 W RMS@100 V/70 V (500 Ω/250 Ω)
10 W RMS@70 V (500 Ω)
SENSITIVITY: 88 dB @ 1 W/1 m (100 Hz)
SOUND PRESSURE: 105 dB @ max. W/1m Continuous
108 dB @ max. W/1m Peak
COVERAGE ANGLE: 170º
CROOSOVER NETWORK: LC low-pass filter
PROTECTIONS: IP-44 in compliance with IEC 60529
EN ISO 9227:2006 Neutral Salt Spray Test
MATERIAL: ABS (UV resistant)
Liquid paint aluminium grille
CONNECTORS: Highly conductive quick-connect terminals
For 0.4 ~ 4 mm² cross section cable
OPERATION TEMPERATURE: -20ºC ~ 70°C (48 h)
STORAGE TEMPERATURE: 10ºC ~ 40°C
MAXIMUM HUMIDITY: 95%
COLOUR: White (RAL 9003)
DIMENSIONS: Total loudspeaker: 306 mm Ø x 125 mm height
Grille section: 7 mm
Recessed height: 118 mm
Installation hole: 273 mm Ø
Maximum ceiling thickness: 30 mm
WEIGHT: 3.06 kg
ACCESSORIES: Installation template
Delivery
Delivery
We offer the following shipping options at checkout;
- Free Shipping - Please allow up to 7 working days to receive the goods.
If you require a package faster than the free shipping option, we offer;
- Standard Shipping (£6.50 inc VAT) - Allow 2-4 working days for delivery.
- Express Shipping (£11.99 inc VAT) - If ordered before 15:00 (Mon-Fri) We will dispatch that evening for a Next Day Service (Mon-Fri).
Any orders placed over the weekend, will be processed from the Monday.

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