Infinity Primus 140 User manual

Owner’s Guide

Primus 140

Primus 150

Primus 160

PRIMUS SPEAKER SYSTEMS

INFINITY PRIMUS™SERIES

The Primus series of loudspeakers continues Infinity’s longstanding

commitment to accurate sound reproduction.Our proprietary Metal

Matrix Diaphragm (MMD™) drivers,precision dividing networks,and

rigid,well-braced enclosures combine to deliver uncompromised

performance in any stereo or multichannel home theater system.

In addition,Primus series speakers are magnetically shielded for safe

placement adjacent to a television.

UNPACKING THE SPEAKERS

If you suspect damage from transit,report it immediately to your dealer.

Keep the shipping carton and packing materials for future use.

PLACEMENT

Stereo

Before deciding where to place your Primus speakers,survey your room

and think about placement,keeping the following points in mind,using

Figure 1 as a guide:

•For best results,place the speakers 6'–8' apart.

•Position each speaker so that the tweeter is approximately at ear level.

•Generally,bass output will increase as the speaker is moved closer to a

wall or corner.

•Refer to“HomeTheater”below if you also plan to use the speakers for

home theater reproduction.

Figure 1.Experiment with speaker placement to obtain the best

bass level and stereo imaging in your room.

HomeTheater

For front-channel use,place one speaker on the left and another on the

right,along either side of the television monitor.Since the speakers are

magnetically shielded,you can place them without worrying about the

field distorting theTV picture.

Forrear-channel use,place Primus bookshelf speakers on bookshelves or

stands alongside the listening position.Final placement depends on room

acoustics,availability of space,and your listening preference (Figures 2

and 3).

The center channel speaker should be placed on top of or directly below

the television and aimed toward the listening area.

NOTE:An Infinity powered subwoofer will add impact and realism to both

music and film soundtracks.Contact your Infinity dealer for recommenda-

tions on subwoofer models for your application.

Figure 2.This overhead view shows a typical home theater plan.

Figure 3.This figure shows an alternate layout,which may be

more suitable for some rooms.

Couch

Left

Front

Channel

Left

Surround

Channel

Right

Surround

Channel

Right

Front

Channel

Center

Channel

Infinity Subwoofer

(optional)

Couch

Left

Front

Channel

Left

Surround

Channel

Right

Surround

Channel

Right

Front

Channel

Center

Channel

Infinity Subwoofer

(optional)

Listening Position

Left

Channel Right

Channel

2PRIMUS SPEAKER SYSTEMS

PRIMUS SPEAKER SYSTEMS

+–

Receiver or

Amplifier

(rear view)

Speaker (rear view)

– +

(one channel shown)

REDBLACK

Figure 5.This example shows how to connect bare wires to the terminals.

FIGURE 4.

Step 1.

Mark the positions on the wall where you would like to place the mounting

screws.

Step 2.

Fasten two 1-1/2,"#10 wood screws to the wall using the markings

placed in Step 1 as your guide.Leave an 11/16" space between the wall

and screwhead.If a wall stud is not available,use an appropriate anchor.

Step 3.

Place the speaker on the wall by aligning the keyholes on the back of the

speaker to the screwheads on the wall.Once positioned properly,the

speaker should slide down slightly and become secure.

The Primus 140 also allows the use of third-party wall brackets using the

1/4"-20 threaded insert located beneath the keyhole mount.Consult the

wall-bracket manufacturer for selection of proper bracket.ker on the wall

by aligning the keyhole on the back of the speaker to the screwhead on

the wall.Once positioned properly,the speaker should slide down slightly

and become secure.

– +

Keyhole mounts

1/4"-20Threaded insert

(Primus 140 only)

Figure 6.Wiring diagram shows polarity connections for one

channel of a stereo or home theater system.

WIRING THE SYSTEM

IMPORTANT:Make sure all equipment is turned off before making any

connections.

For speaker connections,use a minimum #16-gauge speaker wire with

polarity coding.The side of the wire with a ridge or other coding is

usually considered positive polarity (i.e.,+).

NOTE: If desired,consult your local Infinity dealer about speaker wire and

connection options.

The speakers have coded terminals that accept a variety of wire connec-

tors.The most common connection is shown in Figure 5.

To ensure proper polarity,connect each +terminal on the back of the

amplifier or receiver to the respective +(red) terminal on each speaker,

as shown in Figure 6.Connect the –(black) terminals in a similar way.

See the owner’s guides that were included with your amplifier,receiver

and television to confirm connection procedures.

IMPORTANT: Do not reverse polarities (i.e.,+ to –or –to +) when

making connections.Doing so will cause poor imaging and diminished

bass response.

WALL-MOUNTINGTHE PRIMUS 140AND

PRIMUS 150

The Primus 140 and Primus 150 are designed to mount directly to a

wall.Each satellite speaker has two keyholes on the back.Each speaker

will require (2) 1-1/2,"#10 wood screws fastened to a wall stud.If a

wall stud is unavailable,install an anchor appropriate for a 1-1/2,"#10

screw.

NOTE:The customer is responsible for the correct selection and use of

mounting hardware (available through hardware stores) that will ensure

the proper and safe wall-mounting of the speakers.

FINAL ADJUSTMENTS

Check the speakers for playback,first by setting the system volume control

to a minimum level,and then by applying power to your audio system.Play

a favorite music or video segment and increase the system volume control

to a comfortable level.

NOTE:You should hear balanced audio reproduction across the entire

frequency spectrum.If not,check all wiring connections or consult

the authorized Infinity dealer from whom you purchased the system

for more help.

The amount of bass you hear and the stereo-image quality will be affected

by a number of different factors,including the room’s size and shape,

the construction materials used to build the room,the listener’s position

relative to the speakers,and the position of the speakers in the room.

Listen to a variety of music selections and note the bass level.If there is

too much bass,move the speakers away from nearby walls.Conversely,if

you place the speakers closer to the walls,there will be more bass output.

Nearby reflecting surfaces can adversely affect stereo-imaging quality.If

this happens,try angling the speakers slightly inward toward the listening

position until the optimum effect is achieved.

CARE OF YOUR SPEAKER SYSTEM

Each Primus series cabinet has a wood-grain-vinyl finish that does not

require any routine maintenance.When needed,use a soft cloth to remove

any fingerprints or dust.

Clean the grille by gentle vacuuming.

NOTE: Do not use any cleaning products or polishes on the cabinet

or grille.

4PRIMUS SPEAKER SYSTEMS

SPECIFICATIONS Primus 140 Primus 150 Primus 160

Frequency Range: 100Hz – 20,000Hz (±3dB) 58Hz – 20,000Hz (±3dB) 49Hz – 20,000Hz (±3dB)

Recommended

Amplifier Power Range: 10 – 100 watts 10 – 100 watts 10 – 150 watts

Sensitivity: 86dB 88dB 90dB

(2.83V @ 1 meter)

Nominal Impedance: 8Ω8Ω8Ω

Crossover Frequency: 3000Hz;24dB/octave 3300Hz;24dB/octave 3000Hz;24dB/octave

Low-Frequency Driver: 4" (100mm) MMD,™5-1/4" (130mm) MMD,™6-1/2" (165mm) MMD,™

magnetically shielded magnetically shielded magnetically shielded

Mid-Frequency Driver: N/A N/A N/A

High-Frequency Driver: 3/4" (19mm) MMD,™3/4" (19mm) MMD,™3/4" (19mm) MMD,™

magnetically shielded magnetically shielded magnetically shielded

Dimensions (H xW x D): 9-5/8" x 5-15/16"x 6-13/16" 12-3/4" x 7-3/8"x 10-1/2" 14-1/2" x 8-1/4"x 11"

(with grille) (245mm x 150mm x 173mm) (322mm x 187mm x 267mm) (370mm x 208mm x 280mm)

Weight: 7 lb (3.2kg) 13.5 lb (6kg) 16.1 lb (7.3kg)

Infinity continually strives to update and improve existing products,as well as create new ones.The specifications and construction details in this and related Infinity publications are therefore

subject to change without notice.

Declaration of Conformity

We, Harman Consumer International

2, route de Tours

72500 Chateau-du-Loir

France

declare in own responsibility that the products described

in this owner’s manual are in compliance with technical

standards:

EN 50081-1:1992

EN 50082-1:1997

Robin Marshall

Harman Consumer International

Chateau-du-Loir, FRANCE 4/03

PRIMUS SPEAKER SYSTEMS

6PRIMUS SPEAKER SYSTEMS

NOTES

PRIMUS SPEAKER SYSTEMS

NOTES

Infinity Systems,250 Crossways Park Drive,Woodbury,NY 11797 USA 800.553.3332 (USA only) www.infinitysystems.com

Infinity is a registered trademark,and Infinity Primus and MMD are trademarks,of Harman International Industries,Incorporated.

Part No.406-000-01532 4/03

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