Bogen OPS1 User Manual

© 2003 Bogen Communications, Inc.
All rights reserved.
Specifications subject to change without notice.
54-2090-01A 0302 Printed in Taiwan.

Orbit Pendant Speaker

OPS1

Installation and Use Manual

Product Description

Thank you for choosing NEAR® Orbit Pendant Loudspeakers. You have purchased
one of the finest pendant loudspeakers available today, the NEAR Model OPS1.
Please familiarize yourself with this product by reading and reviewing the following
descriptions and diagrams.

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 the environment.

The NEAR OPS1 pendant loudspeaker is a full-range, wide dispersion system pro­viding overhead sound coverage where ceiling structures are high but the sound
needs to be closer to the audience/listener.An optional cable kit (CK10) suitable for
safety or main drop cable is available.

Settings for both 70V and 100V high-impedance systems, as well as a low-impedance
(16-ohm) position, are provided.Also, a conversion chart for speaker use in 25V sys­tems is provided in this manual.

All ORBIT models feature a removable snap-lock input connector, providing easy
wire connection for input as well as loop-through to the next speaker.

Product Diagrams

OPS1 Front Drawing

1.Tap Selection Switch

2. Coaxial Driver Assembly

3. Grille Retention Slot

4. Bass Tuning Vent (x2)

5. Perforated Steel Grille

OPS1 Rear Drawing

1. Snap-Lock Input Connector

2. Suspension Points (x3)

3. Safety Cable Suspension Point

Package Contents

(1) Orbit Pendant Speaker

(1) Manual

(1) Quick-Snap Clip

(1) Snap-Lock Input Connector

(3) Forged Eye Bolts

(3) Nuts

(3) Suspension Cables

OPS1 Front Drawing

OPS1 Rear Drawing

1

Installation

If the power level is known, then select it using the front-mounted selector switch
prior to installing the OPS1. See section Selecting Power Levels.

SUSPENSION CABLE ASSEMBLY

1. Screw nuts onto the eye bolts all the way to
the flange.

2. Screw in eye bolts with captured cable sec­tions in to the three suspension points.
Do not overtighten.

3. Snap loops of free end of cable sections into
quick-snap clip.

4. Connect quick-snap clip to anchor point or
drop cable. Bogen’s CK10 cable kit is suit­able for use as the drop cable.

SAFETY CABLE

The OPS1 includes a safety cable suspension point for extra protection.

The thread of the suspension point is a 1/4-20" x 1/2" thread. Bogen offers a cable
kit as an optional accessory (CK10) that is suitable for use as the safety cable.

2

IMPORTANT

The anchor point, drop cable, and hardware used to hang the speaker must be able
to support the speaker’s weight under all conditions. IF YOU ARE NOT SURE OF
THE PROPER CAPACITY OF THESE ITEMS TO USE, CONSULT A STRUCTURAL
ENGINEER. Mount only one speaker per supplied quick-snap clip.

1.

2.

3.

4.

Speaker Wiring

Wiring is terminated at a snap-lock input con­nector. There are two positive and two nega­tive terminals to accommodate daisy chaining
of speakers in a system. All wiring should be
done prior to installation and then plugged
into the rear of the OPS1.

DAISY CHAINING

The OPS1’s snap-lock input connector allows
for easy daisy chaining of speakers by provid­ing a second terminal of each polarity. Refer to
the figures for proper wiring for daisy chaining
of terminals.

SPEAKER PHASING

Keep the same polarity terminals wired together to ensure correct phasing. In order
to provide the best possible sound, all of the speakers in a system need to be push­ing out and pulling in at the same time.

If the connections to one speaker in a system are reversed from the others, that
speaker’s movement will be out of sync with the other speakers.This will result in a
loss of low frequency response and will effect the overall performance of the sys­tem.

3

Selecting Power Levels

The front-mounted selector switch is used to
set the appropriate power level or impedance
for your system. Using a small flat-blade screw­driver, turn the knob until the slot points to the
power level you require.

70V/100V SYSTEMS

Both power setting scales for 70V and 100V sys­tems are labeled on the speakers. On the 100V
scale, the last position clockwise is marked with
a (not available) symbol.Do not use this posi­tion in 100V systems.

16

ΩΩ

SYSTEMS

The fully counterclockwise position of the setting switch is the 16-ohm position.This
setting is suitable for use with low-impedance amplifiers that typically support 4- or
8-ohm speakers.The speaker’s higher, 16-ohm impedance makes it easier to combine
multiple speakers into series - parallel networks while keeping the total system
impedance at a level suitable for low-impedance amplifiers.

25V SYSTEMS

The OPS1 will operate on 25V systems, but at
reduced power levels. The chart to the right
shows the conversion from a 70V power setting
to the actual 25V power level.

Accessory

CK10 (CABLE KIT, 10’)

The CK10 is a 10-foot cable with one looped end, a forged eye bolt (with 1/4-20" x
1/2" thread), and an adjustable cable clamp. It is suitable for use as a drop cable or

safety cable.

25V Conversion Table

70V Setting

32W 4W

25V Power

16W

2W

8W

1W

4W

1/2W

2W

1/4W

1W 1/8W

16Ω

39W

4

Specifications

5

SPECIFICATIONS

OPS1

Frequency Response (-10 dB)

*

60 Hz to 19 kHz

LF Driver

6-1/2

" MDT Metal-Alloy Cone

(MLS Voice Coil Centering System)

HF Driver 20 mm (3/4") Polycarbonate Dome

Sensitivity (1W/1M) 89.5 dBspl (Average 100 Hz - 10 kHz)

Impedance Ratings

Low (16 ohms) / High (70V/100V)

Power Input (Max.)

100W @ 16 ohms; 32W @ 70V/100V

Power Settings (in watts)

†

70V: 32, 16, 8, 4, 2, 1

100V: 32, 16, 8, 4, 2

Enclosure Material Fire-rated (94VO) ABS

Grille Material Powder-Coated Perforated Metal

Terminations 4 Terminal Snap-Lock Input Connector

Product Weight

10 lb.

Speaker Dimensions

15" dia. x 9-1/4" D

Included Accessories

(3) Suspension Cables; (3) Forged Eye Bolts; (3) Nuts;

(1) Quick-Snap Clip; (1) Snap-Lock Input Connector

Optional Accessories

Cable Kit (CK10)

Enclosure Finish & Color Textured White or Black

*

Free Space Response, 16-ohm input

† Front panel, switch-selected.

50 Spring Street, Ramsey, NJ 07446, U.S.A.

Tel. [phone], Fax: [phone], www.bogen.com

Warranty

Orbit Pendant Speakers are warranted to be free from defects in material or work­manship provided that the product has not been subjected to abuse or accident or
altered in any way for five (5) years from the date of sale to the original purchaser.Any
part of the product covered by this warranty that, with normal installation and use,
becomes defective will be repaired or replaced by Bogen, at our option, provided the
product is shipped insured and prepaid to: Bogen Factory Service Department, 50
Spring Street, Ramsey,NJ 07446, USA.The product will be returned to you freight pre­paid.This warranty does not extend to any of our products that have been subjected
to misuse, improper storage, neglect,accident,improper installation or have been mod­ified or repaired in any manner that Bogen believes may affect the reliability of the
product, or where the serial number or date code has been removed or defaced.

THE FOREGOING LIMITED WARRANTY IS BOGEN’S SOLE AND
EXCLUSIVE WARRANTY AND THE PURCHASER’S SOLE AND EXCLU­SIVE REMEDY. BOGEN MAKES NO OTHER WARRANTIES OF ANY
KIND, EITHER EXPRESS OR IMPLIED,AND ALL IMPLIED WARRANTIES
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
ARE HEREBY DISCLAIMED AND EXCLUDED. Bogen's liability arising out of

the manufacture, sale or supplying of products or their use or disposition, whether
based upon warranty, contract, tort or otherwise, shall be limited to the price of the
product. In no event shall Bogen be liable for special, incidental or consequential dam­ages (including, but not limited to, loss of profits, loss of data or loss of use damages)
arising out of the manufacture, sale or supplying of products, even if Bogen has been
advised of the possibility of such damages or losses.

Products that are out of warranty will also be repaired by the Bogen Factory Service
Department -- same address as above or call 201-934-8500. The parts and labor
involved in these repairs are warranted for 90 days when repaired by the Bogen
Factory Service Department. All shipping charges in addition to parts and labor
charges will be at the owner's expense.