James Loudspeaker EMB12-70-M - Passive 12" EMB In-Room Down Firing Subwoofer, 70V

Product Overview

The James Loudspeaker EMB12-70-M is a passive 12" down-firing subwoofer wired for 70V operation, built for commercial AV systems that distribute deep low-frequency reinforcement across long cable runs and multiple zones. Its down-firing 12-inch driver couples bass to the floor, while the 70V configuration makes this distributed subwoofer a match for constant-voltage amplifier lines. As a passive sub, it runs from an external 70V subwoofer amplifier. The EMB12-70-M suits integrators specifying high-output distributed low-frequency support.

Product Description

The EMB12-70-M is the 70V, down-firing distributed variant within the James Loudspeaker EMB subwoofer family. The 12 indicates a 12-inch driver, the -70 indicates 70V constant-voltage wiring, and the -M designates the distributed model intended for multi-unit low-frequency systems. Because it is passive, the EMB12-70-M requires an external 70V subwoofer amplifier, and its transformer-coupled input suits distributed lines with long cable runs. It is the distribution counterpart to the 4-ohm EMB12-4-M, which shares the same 12-inch down-firing driver but is wired for low-impedance operation, and it steps up in displacement from the EMB10-70-M. The finished cabinet supports in-room placement. The full lineup is available in the James Loudspeaker collection. This makes the EMB12-70-M a practical specification for high-output distributed bass on constant-voltage systems.

Key Features

• 12-Inch Driver — A single 12-inch woofer delivers the highest output in the distributed EMB range.
• Down-Firing Design — The driver faces the floor, coupling deep bass into the room for even distribution.
• 70V Configuration — Wired for 70V constant-voltage operation to suit distributed amplifier lines.
• Distributed Variant — The -M model is built for multi-unit low-frequency reinforcement systems.
• Passive Operation — Driven by an external 70V subwoofer amplifier for full integrator control.

Typical Applications

• Distributed 70V low-frequency systems
• Larger commercial AV and entertainment venues
• Multi-zone audio installations with long cable runs
• High-end residential and hospitality spaces

Technical Specifications

Frequently Asked Questions

Does the EMB12-70-M need an amplifier?
Yes. It is a passive subwoofer and requires an external 70V subwoofer amplifier.

What distribution is it wired for?
It is wired for 70V constant-voltage operation, suited to distributed amplifier lines.

What is the driver size?
The EMB12-70-M uses a single 12-inch down-firing driver.

How does it differ from the EMB12-4-M?
The EMB12-4-M is the 4-ohm version of the same 12-inch down-firing driver, wired for low-impedance operation instead of 70V.

How does it compare to the EMB10-70-M?
The EMB12-70-M uses a larger 12-inch driver for greater displacement than the 10-inch EMB10-70-M.