JBL Control 40CS/T High-Impact, Passive In-Ceiling Subwoofer (Pair, White)

Product Overview

The JBL Control 40CS/T is a direct-radiating 8-inch in-ceiling subwoofer, sold as a pair in white, built to add low-frequency extension to commercial subwoofer-satellite systems. A built-in passive crossover network lets each unit anchor a ceiling-mounted sub-satellite layout with minimal visual impact, making it well suited to distributed audio in finished interiors. This 70V/100V in-ceiling subwoofer can run on a 70V or 100V distributed line or in low-impedance 8-ohm direct mode. Paired with compact satellites such as the Control 42C, it delivers wide-bandwidth coverage from a discreet ceiling footprint.

Product Description

The Control 40CS/T is engineered as the bass foundation of an in-ceiling subwoofer-satellite system. Its built-in passive crossover network allows the subwoofer and matching satellites to be wired together easily, while a switchable 70V/100V or low-impedance input lets the unit operate on a distributed line or as an 8-ohm direct-mode loudspeaker. The subwoofer can also be deployed in an active-crossover configuration alongside the rest of the JBL Control Contractor in-ceiling line for extended bass response in larger systems. Its low-profile ceiling design keeps the visual footprint minimal while reinforcing the low end of speech and program material. Integrators specifying complete ceiling systems can browse related models in the JBL Professional installed audio collection. This white version is sold as a pair.

Key Features

• Direct-radiating 8-inch subwoofer — A high-impact 8-inch driver extends low-frequency output for ceiling-mounted commercial systems.
• Built-in passive crossover — An onboard crossover network simplifies wiring of subwoofer-satellite systems without external processing.
• Switchable 70V/100V or low-impedance — The unit operates on a 70V or 100V distributed line or in 8-ohm direct mode to suit the amplifier in use.
• Active-crossover compatible — It can be deployed with an active crossover alongside the Control Contractor in-ceiling line for larger system designs.
• Low visual impact — The in-ceiling format keeps bass reinforcement discreet in finished architectural spaces.
• Sold as a pair — Two matched units ship together for stereo or multi-zone ceiling coverage.

Typical Applications

• Conference room — Adds low-frequency weight to ceiling speech and program audio.
• Commercial meeting space — Discreet bass reinforcement for distributed ceiling systems.
• Multi-purpose room — Full-range support where floor or wall subwoofers are impractical.
• House of worship — Even low-end coverage for speech and music from the ceiling plane.
• Boardroom — Balanced full-range audio for presentation and conferencing playback.

Technical Specifications

Full electrical specifications should be confirmed against the JBL Control 40CS/T specification sheet.

Frequently Asked Questions

Can the Control 40CS/T run on a 70V or 100V distributed line?
Yes. It is switchable between 70V/100V distributed operation and 8-ohm low-impedance direct mode, so it adapts to the amplifier and system design in use.

What satellites pair with it?
It is designed to anchor an in-ceiling subwoofer-satellite system and pairs naturally with compact ceiling satellites such as the JBL Control 42C.

Does it require an external crossover?
No. A passive crossover network is built in for simple subwoofer-satellite wiring, though it can also be used with an active crossover in larger Control Contractor system designs.

Is it sold individually or as a pair?
This white Control 40CS/T is sold as a pair.

What warranty and support apply?
The Control 40CS/T carries JBL Professional's manufacturer warranty. For system design and integration support, contact our team or browse the JBL Professional installed audio collection.