James Loudspeaker ST8-4 - Passive 8" Subwoofer 4 Ohm
James Loudspeaker ST8-4 - Passive 8" Subwoofer 4 Ohm is backordered and will ship as soon as it is back in stock.
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James Loudspeaker ST8-4 - Passive 8" Subwoofer 4 Ohm
Product Overview
The James Loudspeaker ST8 4 Ohm is a passive 8" subwoofer wired for 4-ohm operation, built for commercial AV installations that need compact low-frequency reinforcement on low-impedance amplifier channels. Its 8-inch driver delivers controlled bass for theaters, multi-zone systems, and high-end residential spaces, making this 4-ohm passive subwoofer a flexible building block. As a passive sub, it runs from an external subwoofer amplifier. The ST8 4 Ohm suits integrators specifying low-impedance distributed bass.
Product Description
The ST8-4 is part of the James Loudspeaker ST subwoofer family, where the suffix indicates electrical configuration. The 8 indicates an 8-inch driver and the -4 indicates 4-ohm wiring suited to standard low-impedance amplifier outputs. Because it is passive, the ST8-4 requires an external subwoofer amplifier, leaving power and signal processing under the integrator's control. It is the impedance counterpart to the 70V ST8-70, which shares the same 8-inch driver but is wired for constant-voltage distribution. Within the ST range it steps up to the larger ST10-4 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 ST8-4 a practical specification for compact low-impedance subwoofer systems.
Key Features
- 8-Inch Driver — A single 8-inch woofer delivers low-frequency output in a compact footprint.
- 4-Ohm Configuration — Wired for 4-ohm operation to match low-impedance amplifier channels.
- Passive Operation — Driven by an external 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
- Compact low-frequency systems
- Commercial AV and entertainment venues
- Multi-zone audio installations
- High-end residential and hospitality spaces
Technical Specifications
| Type | Passive Subwoofer |
| Driver Size | 8" |
| Distribution | 4-Ohm |
| Operation | Passive (requires external amplifier) |
Frequently Asked Questions
Does the ST8-4 need an amplifier?
Yes. It is a passive subwoofer and requires an external subwoofer amplifier.
What impedance is it?
It is wired for 4-ohm operation to match low-impedance amplifier channels.
What is the driver size?
The ST8-4 uses a single 8-inch driver.
How does it differ from the ST8-70?
The ST8-70 is the 70V version of the same 8-inch driver, wired for constant-voltage distribution instead of 4-ohm.
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.
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