Bogen OCS1 User Manual

© 2003 Bogen Communications, Inc.
All rights reserved.
Specifications subject to change without notice.

54-2089-01B 0406

Orbit Ceiling Speaker
OCS1

Installation and Use Manual

Product Description

Thank you for choosing NEAR® Orbit Loudspeakers.You have purchased one of the

finest ceiling loudspeakers available today, the NEAR Model OCS1. Please familiarize

yourself with this product by reading and reviewing the descriptions and diagrams in
this manual.

All NEAR products include similar technical and design aspects that are unique to
the market. NEAR invented and patented the "spiderless" woofer (MLS™), which
features a high-gauss ferrofluid to guide the voice coil through the magnetic field.The
benefits over conventional woofers with cloth spiders are several, including the
ability to constantly adjust voice coil alignment, extend linear excursion, and the
most efficient path for cooling the voice coil.

In addition, the use of metal-alloy cone structures provides several benefits over the
usual paper or plastic cone, such as elimination of cone flex or "break-up" in the
operating ranges, additional thermal path for the voice coil to stay cool, and an
extremely stable cone structure unaffected by changes in temperature.

The NEAR OCS1 Ceiling Loudspeaker is a full-range, wide dispersion system providing

high-quality background and foreground music. It can be installed in either suspended
ceiling structures or hard surfaces such as sheetrock. It comes ready to install with
integral swinging arm clamps. An optional mounting bracket (TBCR) is available for
additional support (recommended for all suspended ceiling applications).The brack­et can also be used for new construction ceilings, providing a cutout guide behind
the sheetrock surface and as a C-ring to stiffen the edges of the cutout opening.

A variety of speaker power levels are easily selected via a front panel rotary switch.

Settings for both 70V and 100V high-impedance systems, as well as a low-impedance
(16-ohm) position, are provided.

The OCS1 features a removable snap-lock input connector, providing easy wire

connection for input as well as loop-through to the next speaker.

IMPORTANT

The OCS1 is not an outdoor speaker. Do not expose the speaker to rain or
moisture.The OCS1 should be installed by qualified personnel.

Product Diagrams

OCS1 Front Drawing (grille removed)

1. Coaxial Driver Assembly

2. Bass Tuning Vents (x2)

3. Grille Retention Groove

4. Power Tap Selection Switch

5. Mounting Clamp Screws (x4)

OCS1 Rear Drawing

6. Metal Back Can

7. Snap-Lock Input Connector

8. Mounting Clamps (x4)

OCS1 Rear Drawing (terminal cover)

9.Terminal Covers (2 identical halves)

10. Eyelets (x2)

11. Mounting Screws (x4)

12.Wire Exit Slot

13. Conduit Knock Out (x2)

OCS1 Front Drawing

(grille removed)

OCS1 Rear Drawing

OCS1 Rear Drawing

(terminal cover)

1