James Loudspeaker ST8-70 - Passive 8" Subwoofer 70V
James Loudspeaker ST8-70 - Passive 8" Subwoofer 70V is backordered and will ship as soon as it is back in stock.
Shipping Availability*
Shipping Availability*
Free Ground Shipping on Most Orders Over $250.00
Looking for the best price or expert advice? Give us a call at 1-888-230-3661 or use the Live Chat below. Buying 1 or 100, you may qualify for greater savings beyond the advertised price.
James Loudspeaker ST8-70 - Passive 8" Subwoofer 70V
Product Overview
The James Loudspeaker ST8 70V is a passive 8" subwoofer wired for 70V operation, built for commercial AV installations that distribute compact low-frequency reinforcement across long cable runs and multiple zones. Its 8-inch driver delivers controlled bass on constant-voltage amplifier lines, making this 70V passive subwoofer a flexible building block for distributed systems. As a passive sub, it runs from an external 70V subwoofer amplifier. The ST8 70V suits integrators specifying constant-voltage distributed bass.
Product Description
The ST8-70 is part of the James Loudspeaker ST subwoofer family, where the suffix indicates electrical configuration. The 8 indicates an 8-inch driver and the -70 indicates 70V constant-voltage wiring suited to distributed amplifier lines with long cable runs. Because it is passive, the ST8-70 requires an external 70V subwoofer amplifier, leaving power and signal processing under the integrator's control. It is the distribution counterpart to the 4-ohm ST8-4, which shares the same 8-inch driver but is wired for low-impedance operation. Within the ST range it steps up to the larger ST10-70 for greater displacement. An optional aluminum port accessory is available for the ST8 platform. The full lineup is available in the James Loudspeaker collection. This makes the ST8-70 a practical specification for compact constant-voltage subwoofer systems.
Key Features
- 8-Inch Driver — A single 8-inch woofer delivers low-frequency output in a compact footprint.
- 70V Configuration — Wired for 70V constant-voltage operation to suit distributed amplifier lines.
- Passive Operation — Driven by an external 70V subwoofer amplifier for full integrator control.
- ST Family Compatibility — Matches other ST subwoofers for consistent multi-zone specification.
- Port Accessory Option — An aluminum port accessory is available for the ST8 platform.
Typical Applications
- Distributed 70V low-frequency systems
- Commercial AV and entertainment venues
- Multi-zone audio installations with long cable runs
- High-end residential and hospitality spaces
Technical Specifications
| Type | Passive Subwoofer |
| Driver Size | 8" |
| Distribution | 70V |
| Operation | Passive (requires external amplifier) |
Frequently Asked Questions
Does the ST8-70 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 ST8-70 uses a single 8-inch driver.
How does it differ from the ST8-4?
The ST8-4 is the 4-ohm version of the same 8-inch driver, wired for low-impedance operation instead of 70V.
Is a port accessory available?
Yes. An aluminum port accessory is offered for the ST8 platform.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
Nationwide Audiovisual Services, Design, Installation & Support
Creation Networks is a trusted nationwide partner for complete audiovisual solutions — delivering expert AV system sales, professional design, programming, installation, and ongoing support to organizations across the United States.
From Microsoft Teams Rooms and enterprise video conferencing to LED video walls, live streaming production, and hybrid collaboration systems, we provide end-to-end AV integration using premium, certified technology from industry leaders including Crestron, Q-SYS, Shure, Extron, and Absen.
Whether you operate a single location or manage facilities nationwide, Creation Networks ensures your AV systems are designed for reliability, scalability, security, and long-term performance — helping your organization communicate more effectively and operate at peak efficiency.
CREATION NETWORKS — A PARTNER YOU CAN TRUST SINCE 2006
