James All Terrain / Subterranean Landscape Series

James ST21

Introduction

The ST21-4 is a 21" subterranean subwoofer designed for high SPL bass output in outdoor environments. It features a powerful 21" transducer, optimized for maximum excursion and SPL, delivering exceptional low-end performance for outdoor audio applications.

Features, Specifications, and Manuals

Features
  • All-copper toroidal transformer (70V models)
  • Direct burial, compression bandpass subwoofer design
  • Marine grade
  • Available in a selection of standard or custom colors
  • TAA Compliant
Specifications
Specification Details
SKU ST21
Speaker Woofer (1) 21" (534mm) Aluminum
Frequency Response (+/- 3db) 18Hz - 120Hz
Sensitivity 91dB (2.83V/1m)
Enclosure Aluminum
Nominal Impedance (Ohms) 4 ohms
Dimensions (WxHxD) 24.0" x 24.0" x 24.0" (609.6mm x 609.6mm x 609.6mm)
Manuals and Documents
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