JBL Control 85M

Twist the top part of the enclosure in a
clock-wise direction until it disengages
from the bottom part.
Lift o the top section.
Control 85M/88M Mushroom Landscape Speaker
Installation Instructions
1
2
Before nal assembly and installation of the Landsape speaker, it is important to prepare the installation site. The speaker is
designed to be able to sit below grade, with the lower half burried in the soil no deeper than the boundary point where the
two parts of the speaker meet. Another installation method is to place the speaker on the surface and use ground cover
materials to “berm up” to the boundary between the two sections, being careful not to cover the ared waveguide in the upper
half of the speaker, or the speaker can be installed on the top surface of wooden decks or cement slabs. There are three
recessed pathways on the bottom of the speaker to allow for entrance and exit when using mutiple speakers on distributed
lines.
Anchoring the speaker for stability and security can be accomplished using after-market stakes placed through one, two or all
three pre-drilled holes located at the base of each of the legs on the bottom section.

JBL Control 85M Specifications

General

Impedance	8 Ω
Transformer Taps (70V)	30 W, 15 W, 7.5 W
Crossover Frequency	2.5 kHz
Driver Size	8 in (203 mm)
Transformer Taps (100V)	30 W, 15 W
LF Driver	200 mm (8 in)
HF Driver	25 mm (1 in)
Tweeter	25 mm (1 in)
Woofer	200 mm (8 in)

Summary

Speaker Assembly and Wiring

Tap Setting Adjustment

View of tap setting for Control 85M and 88M speakers. Adjustment required before powering.

Gland Nut and Wire Installation

Installing gland nuts and feeding external wire through the speaker enclosure for connection.

Wire Size for Watertight Seal

Use round jacketed cable with O.D. between 4.0mm and 9.0mm for a watertight seal.

Speaker Reassembly Steps

Connecting Wires and Securing Enclosure

Ensuring wires are in place, tightening gland nuts, aligning sections, and using security screws.

Final Assembly Checks

Rotating the top section to lock, lining up screws, and replacing the cap covering.

Included Parts