Infinity Theater Pac US-1 Manuel utilisateur

Owner’s Manual

Theater Pac

2-Way Universal-Mounting

Satellite Loudspeakers

INF1446 3/22/99 9:58 AM Page 1

2◆US-1 Theater Pac – Owner’s Manual

2-W

NIVERSAL

ATELLITE

YSTEM

...

BOUT

HIS

ANUAL

...

ARTS

IST

...

OOLS

UPPLIES

NCLOSED

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INTRODUCTION

The Infinity US-1 is a compact, efficient 2-way universal satellite speaker system that is ideal

for reproducing home-theater sound for front or rear channels. With their versatile design, US-1

speakers can be placed virtually anywhere on shelves or stands, or mounted on a wall or ceiling,

using the integral 4-way mounting bracket. It has crossholes for mounting and also acts as a door

which hides the mounting terminals. The US-1 Theater Pac contains five US-1 satellite speakers.

To start enjoying your new US-1 Theater Pac, first read and then perform all instructions

listed in this manual, as well as those found in the owner’s manuals of associated components in

your audio system. Save all instructions for future reference. These speakers are covered by

a limited five-year warranty, so save the bill of sale to protect your purchase and aid in any

service-related questions.

UNPACKING THE SPEAKERS

Carefully unpack the speakers. If you suspect damage from transit, report it immediately to your

dealer and/or delivery service. Keep the shipping cartons and packing materials for future use.

Open the accessory pack and verify the following contents:

◆(5) US-1 Speakers

◆Owner’s Manual and Warranty Registration Card

◆Hex wrench, 5⁄32" (4mm)

You may also need the following tools and supplies:

◆High-quality speaker wire (also see Wiring the System on page 7)

◆Necessary wall-mounting hardware

◆Wire strippers

INF1446 3/22/99 9:58 AM Page 2

US-1 Theater Pac – Owner’s Manual ◆3

Figure 1. In this overhead view of a typi-

cal 6-piece home entertainment system,

US-1 speakers are used to reproduce

sound for the front, center and surround

channels. An Infinity powered subwoofer

(optional) is shown providing extra

bass for effects and music.

RONT

HANNELS

...

ENTER

HANNEL

...

URROUND

HANNELS

...

PLANNING YOUR SYSTEM

US-1 speakers can be used to reproduce sound for either front or surround channels. Before

deciding where to place your US-1 speakers, survey your room and study Figure 1 to determine

the best placement.

PLACEMENT

NOTE: US-1 speakers can be placed directly on a shelf or mounted on a wall, using the built-in

bracket (see Figures 2 through 5).

For front left and right channels, place one US-1 speaker on the left and another on the right,

along either side of the television monitor.

For the center channel, place one US-1 speaker directly on top of, or below, your

television, either vertically or horizontally.

Since the speakers are magnetically shielded, you can place them very close to the TV without

worrying about the magnetic field distorting the TV picture.

For surround left and right channels, place one US-1 speaker on the left and another on the right,

to the side of, or behind the listening area.

TELEVISION

SOFA

US-1 SPEAKER

For Left Channel

INFINITY POWERED

SUBWOOFER

(optional)

US-1 SPEAKER

For Right Channel

US-1 SPEAKER

For Left Surround US-1 SPEAKER

For Right Surround

US-1

SPEAKER

On Top of Television

For Center Channel

INF1446 3/22/99 9:58 AM Page 3

4◆US-1 Theater Pac – Owner’s Manual

ERTICAL

OSITION

...

Figure 2. This illustration shows how to

vertically position US-1 speakers

two ways.

ORIZONTAL

OSITION

...

Figure 3. This illustration shows how to

horizontally position US-1 speakers

three ways.

SHELF PLACEMENT OF US-1

US-1 speakers can be positioned vertically in two positions on a shelf or stand, as shown in

Figure 2. Set each US-1 flat, with the logo at the bottom and the bracket facing inward.

You can also push the speakers gently back for a 20° tilt.

US-1 speakers can be positioned horizontally in three positions on a shelf or stand, as shown

in Figure 3. Set each US-1 flat, or push the speakers gently back for a 20° tilt. Rotate the logo

to match the orientation of the speaker. To provide a 10° tilt-down angle, loosen the bracket

screw on the rear door with the hex wrench (included) and adjust the bracket to Bracket Open,

Position #1. Tighten the bracket screw when you have reached the desired angle.

NOTE: You may want to route the wires before tightening the bracket screw (see Figure 7 on page 7).

US-1 VERTICAL PLACEMENT ON A SHELF

Flat

Position

US-1

(side view) US-1

(side view)

20°Tilt-Up

Position

US-1 HORIZONTAL PLACEMENT ON A SHELF

Flat Position

(Bracket Closed)

US-1

(rear view)

20°Tilt Up

(Bracket Closed) 10°Tilt Down

(Bracket Open,

Position #1)

US-1 Positions

(side view)

❶Loosen Screw

❷Rotate Bracket

❸Tighten Screw

Screw

Bracket

INF1446 3/22/99 9:58 AM Page 4

US-1 Theater Pac – Owner’s Manual ◆5

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.

ERTICAL

OUNTING

...

Figure 4. This illustration shows how to

mount a US-1 speaker vertically on a wall

or ceiling four different ways.

WALL-MOUNTING THE US-1

US-1 speakers can be wall- or ceiling-mounted, as shown in Figures 4 and 5. You can mount the

speakers with #6 wood screws (not included), using the built-in mounting bracket.

Use the enclosed template to mark the desired position of each US-1 on a wall or ceiling.

Locate a stud for secure mounting and use heavy-duty wood screws with long threads. Test

the mounting thoroughly before installation.

To mount the US-1 speaker vertically on a wall, fasten the wood screws (not included) to a

wall stud, leaving a 3⁄16" clearance between the base of the screw head and the wall. If desired,

loosen the bracket screw, adjust the bracket angle, and tighten the bracket screw.

NOTE: You may want to route the wires before tightening the bracket screw (see Figure 7 on page 7).

Then orient the speaker vertically, align the crossholes on the rear of the US-1 with the wood

screws, and slide the speaker down.

#6 Wood Screws

(fasten to wall stud)

US-1 VERTICAL MOUNTING USING BRACKET

Slide Speaker Down

Onto Wood Screws

US-1

(rear view)

Screw

(inside hole)

US-1 Positions

(top view)

45°From Wall

(Bracket Open,

Position #1)

20°From Wall

(Bracket Closed) 67.5°From Wall

(Bracket Open,

Position #2)

90°From Wall

(Bracket Open,

Position #3)

❶Loosen Screw

❷Rotate Bracket

❸Tighten Screw

3/16"

wall

wood

screw

(side view)

INF1446 3/22/99 9:58 AM Page 5

6◆US-1 Theater Pac – Owner’s Manual

ORIZONTAL

OUNTING

...

Figure 5. This illustration shows how to

mount a US-1 speaker horizontally on a

wall or ceiling four different ways.

For horizontal mounting, fasten the #6 wood screws (not included) to a wall stud, leaving a 3⁄16"

clearance between the base of the screw head and the wall. If desired, loosen the bracket screw,

adjust the bracket angle, and tighten the bracket screw.

NOTE: You may want to route the wires before tightening the bracket screw (see Figure 7 on page 7).

Then orient the speaker horizontally, align the crossholes on the rear of the US-1 with the screws,

and slide the speaker down. Rotate the logo to match the orientation of the speaker.

Slide Speaker Down

Onto Wood Screws

#6 Wood Screws

(fasten to wall stud)

US-1 HORIZONTAL MOUNTING USING BRACKET

❶Loosen Screw

❷Rotate Bracket

❸Tighten Screw

Screw

(inside hole)

US-1

(rear view)

US-1 Positions

(side view)

45°Tilt Up

(Bracket Open,

Position #1)

20°Tilt Up

(Bracket Closed) 67.5°Tilt Up

(Bracket Open,

Position #2)

90°Tilt Up

(Bracket Open,

Position #3)

3/16"

wall

wood

screw

(side view)

INF1446 3/22/99 9:58 AM Page 6

US-1 Theater Pac – Owner’s Manual ◆7

WIRING THE SYSTEM

After placing the speakers, you are ready to connect your system. First turn off all audio system

power. Use high-quality speaker wire to make your connections. For speaker connections, use at

least #18 gauge speaker wire (or #16 for runs over 25 feet) with polarity coding. The side of the

wire with a ridge or other coding is usually considered positive polarity (i.e., + ). Also, consult

the owner’s manuals that were included with your amplifier, receiver, or television to confirm

connection procedures.

On the back of the US-1, loosen the bracket screw and rotate the bracket to access terminals.

Observe polarities when making speaker connections, as shown in Figure 6. Connect each +

terminal on the back of the amplifier, receiver, or television to the respective + (red) terminal

on each US-1 speaker. Similarly, connect the – (black) terminals in the same way.

Do not reverse polarities (i.e., + to – or – to +) when making connections. Doing so will cause

poor imaging and diminished bass response.

After making your connections, route the wires through either hole in the door, as shown in

Figure 7.

NOTE: You may need to loosen the bracket screw to open the door further.

After you finish connecting your system, return the door to the desired angle and tighten the

bracket screw.

URN

OWER

...

MPORTANT

Figure 6. Wiring diagram shows polarity

connections for one channel of a stereo or

home theater system.

OUTING

IRES

...

Figure 7. This illustration shows how to

route the wires through either hole in the

US-1 bracket and connect them to

the terminals.

+–

US-1

(rear view)

Receiver or Amplifier

(rear view)

Output

One Channel Shown Bracket Not Shown

red terminal = +

+–

black terminal = –

Output From

Amplifier or Receiver

Route Speaker

Wire Through

Either Hole

US-1

(rear view)

❷Insert Bare End;

Tighten Terminal

❶Loosen Terminal

–

blk red

INF1446 3/22/99 9:58 AM Page 7

8◆US-1 Theater Pac – Owner’s Manual

HECKING

LAYBACK

...

URROUND

ODES

...

OPERATING THE SYSTEM

Check the speakers for playback by first setting the audio system volume control for a

minimum level, and then applying power to your system. Play a favorite music or video

segment and increase the volume control to a comfortable level.

NOTE: You should hear balanced audio reproduction across the entire frequency spectrum. If not,

check all wiring connections and see In Case of Trouble for more help.

When using the US-1 Theater Pac in a Dolby* Pro Logic* home-theater system, make sure

the receiver’s center-channel mode is set to “Normal”. When using the US-1 Theater Pac in a

Dolby Digital or DTS®home-theater system, make sure the receiver’s speaker mode is

set to “Small”.

CARE OF YOUR SPEAKER SYSTEM

The US-1 enclosure finish does not require any routine maintenance. When needed, use a soft

cloth, dampened with water only, to remove any fingerprints or to wipe off dust. Clean the grille

by gentle vacuuming or with a damp cloth.

NOTE: Do not use any cleaning products or polishes on the enclosure or grille.

INCASE OF TROUBLE

Before consulting your dealer, try these simple troubleshooting steps:

• If the sound quality is distorted, listen to each speaker separately.

• If distortion is present in both, the problem is probably somewhere else in your system.

• If only one channel is distorted, switch the left and right speaker leads at the receiver.

• If the distortion moves to the other speaker, the problem is not in the speaker.

• If you need further assistance, contact your local Infinity retail dealer.

INF1446 3/22/99 9:58 AM Page 8

US-1 Theater Pac – Owner’s Manual ◆9

ERFORMANCE

ATA

RIVE

NITS

IMENSIONS

SPECIFICATIONS – US-1

Frequency Range: 70 ~ 20,000Hz

Sensitivity: 86dB spl @ 1m/2.83 V (anechoic conditions)

Impedance: 8 Ωnominal

Maximum Peak Output: 104dB (spl on program)

Recommended Maximum 10 ~ 100W

Amplifier Power:

Low/Mid Frequency: One 4" (100mm) magnetically

shielded, polypropylene cone

High Frequency: One 1⁄2" (12.5mm) magnetically

shielded, polycarbonate dome tweeter

Width: 4-1⁄2" (114mm)

Height: 8-1⁄2" (216mm)

Depth: 5-1⁄2" (140mm)

Weight: 3.4 lb or 1.6 kg (each)

INF1446 3/22/99 9:58 AM Page 9

10 ◆US-1 Theater Pac – Owner’s Manual

2.52"

(64 mm)

Bracket

Crosshole

Bracket

Crosshole

US-1 M

OUNTING

EMPLATE

...

INF1446 3/22/99 9:58 AM Page 10

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