Infinity HPS-1.5 User manual

Owner’s Manual

Part #335158-001

High-Performance Loudspeaker

Center-Channel Loudspeaker

Models HPS-1.5, HPS Center

HPS

HPS-1.5/4.5/Center OM 3/4/99 9:58 AM Page 1

◆HPS-1.5/Center – Owner’s Manual

The Infinity HPS-1.5 bookshelf loudspeaker features advanced acoustic technology, the highest

quality components and superior enclosure design. While the HPS-1.5 is, on its own, an

excellent loudspeaker, it is ideal for use with the wide variety of subwoofer systems available

today. When combined with a powered subwoofer, especially one of Infinity’s HPS Series

subwoofers, the HPS-1.5 offers the listener superior accuracy, dynamics and resolution while

delivering an exceptionally realistic stereo image. The HPS Center is the perfect center channel

for expansion into home theater, and is voice-matched with the HPS-1.5 for optimal

performance.

UNPACKING THE SPEAKERS

If you suspect damage from transit, report it immediately to your dealer and/or delivery service.

Keep the shipping carton and packing materials for future use.

These speakers are covered by a Limited Warranty (see Warranty Sheet for details), so save the

sales receipt to protect your purchase and aid in any service-related questions. Also, save these

instructions for future reference.

Declaration of Conformity

We, Infinity Systems A/S

Kongevejen 194B

DK-3460 Birkerød

DENMARK

declare in own responsibility, that the products described

in this owner’s manual are in compliance with technical

standards:

EN 50081-1:1992

EN 50082-1:1992

Steen Michaelsen

Infinity Systems A/S

Birkerød. DENMARK. 3/99

HPS-1.5/4.5/Center OM 3/4/99 9:58 AM Page 2

HPS-1.5/Center – Owner’s Manual

◆3

TEREO

PEAKER

LACEMENT

...

Figure 1. Experiment with speaker

placement to obtain the best bass level

and stereo imaging in your room.

ALL

OUNTING

...

Figure 2. Integrated wall-mount bracket.

PLANNING YOUR SYSTEM

Before deciding where to put your HPS-1.5 bookshelf speakers, survey your room, keeping the

following points in mind:

◆These speakers are designed for placement on surfaces such as bookshelves, low tables or

speaker stands. For optimum performance, it is strongly suggested that you place the

speakers on rigid stands that place the tweeter at or near ear level.

◆Position each speaker so that the top of the enclosure is between 25 and 50 inches above

the floor.

◆Refer to Figure 1 when placing speakers for optimum bass level and stereo image (see Final

Adjustments on page 7).

◆If you also plan to use the speakers for home-theater reproduction, refer to Home-Theater

Placement on the next page.

Listening Position

Left

Channel Right

Channel

If desired, the HPS-1.5 may be mounted to a wall using the integrated wall-mount bracket

(see Figure 2).

NOTE: The customer is responsible for proper selection and use of mounting hardware (available

in hardware stores) and for correctly and safely wall-mounting the speakers.

HPS-1.5/4.5/Center OM 3/4/99 9:58 AM Page 3

◆HPS-1.5/Center – Owner’s Manual

OME

-T

HEATER

LACEMENT

...

Figure 3. This overhead view shows

a typical home-theater plan.

ENTER

-C

HANNEL

LACEMENT

...

PLANNING YOUR SYSTEM (CONT’D)

HPS-1.5 bookshelf speakers are suitable for use in reproducing sound from front left channels

and front right channels, as well as for use as rear surrounds (see Figure 3).

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

or stands) along either side of the television monitor. Since the speakers are magnetically

shielded, you can set them very close to the TV without worrying about the magnetic field

distorting the TV picture.

For optimum surround-channel performance, place speakers on bookshelves or stands

alongside or behind the listening position. Ideally, the surround speakers should be placed

6 feet to 7 feet from the floor, facing the listening area. Final placement depends on room

acoustics, availability of space and your listening preference.

NOTE: You can add an Infinity HPS Series subwoofer for deep-bass impact on sound effects and music.

Contact your local Infinity dealer for recommendations on the best subwoofer model for your

application.

For optimum performance, the center-channel speaker should be placed as close to the front of

the TV as possible. The tweeter height of the center channel should be within 2 feet of the front

left and right loudspeakers’ tweeter heights.

Left

Rear

Channel

Right

Front

Channel

Right

Rear

Channel

Center Channel

Listening Position

Television Infinity

HPS Subwoofer

(Optional)

Left

Front

Channel

HPS-1.5/4.5/Center OM 3/4/99 9:58 AM Page 4

HPS-1.5/Center – Owner’s Manual

◆5

URN

OWER

...

Figure 4. This example shows how to

connect bare wires to the terminals.

Banana plugs may also be inserted

directly into the rear of the connector.

Figure 5. Wiring diagram shows polarity

connections for one channel of a stereo or

home-theater system.

MPORTANT

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 connectors. The most common

connection is shown in Figure 4.

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 5. Connect

the -(black) terminals in a similar way. See the owner’s manuals that were included

with your amplifier, receiver and television to confirm connection procedures.

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

cause poor imaging and diminished bass response.

–

+–

Receiver or

Amplifier

(rear view)

–

Speaker

(rear view)

(one channel shown)

Standard Connection

1. Loosen the terminals.

2. Insert bare ends;

tighten terminals.

HPS-1.5/4.5/Center OM 3/4/99 9:58 AM Page 5

◆HPS-1.5/Center – Owner’s Manual

Bi-Wiring

The HPS-1.5 outer connection panel and internal dividing network are designed so that

separate sets of speaker cables can be attached to the low-frequency transducer and

midrange/high-frequency transducer portions of this dividing network. This is called bi-wiring.

Bi-wiring can provide several sonic advantages and considerably more flexibility in power

amplifier selection.

–

1. Loosen the terminals and remove

Strapping Bars.

2. Insert the Speaker Wire for the

high frequencies into the top set

of terminals and tighten.

3. Insert the Speaker Wire for the

low frequencies into the bottom set

of terminals and tighten.

–

Right

Speaker

–

Left

Speaker

Right Left

––

–

Right

Speaker

–

Left

Speaker

Right Left

––

Right Left

––

Single-Stereo Amplifier

Dual-Stereo Amplifier

Receiver/Amplifier

Amplifier 1

Amplifier 2

HPS-1.5/4.5/Center OM 3/4/99 9:58 AM Page 6

HPS-1.5/Center – Owner’s Manual ◆

Final Adjustments

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

and then applying power to your audio system. Play a favorite music or video segment,

increasing 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 where 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 (see Figure 1 on page 3). Conversely, if you want more

bass, place the speakers closer to the walls.

Nearby reflecting surfaces can adversely affect stereo imaging quality. If this occurs, try angling

the speakers slightly inward toward the listening position until the desired effect is achieved.

CARE OF YOUR SPEAKER SYSTEM

Each HPS Series enclosure has a high-quality, vinyl finish that does not require any routine

maintenance. Use a soft cloth, dampened with only water, to remove any fingerprints or to wipe

off dust.

Clean the grille by gently vacuuming or using a damp cloth.

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

HPS-1.5/4.5/Center OM 3/4/99 9:58 AM Page 7

SPECIFICATIONS

ERFORMANCE

ATA

ECOMMENDED

MPLIFIER

OWER

REQUENCY

ANGE

ENSITIVITY

: (2.83V @1m)

OMINAL

MPEDANCE

RIVERS

-F

REQUENCY

RANSDUCER

IGH

-F

REQUENCY

RANSDUCER

IMENSIONS

EIGHT

, W

IDTH

, D

EPTH

EIGHT

(

EACH

)

HPS-1.5

15~125W

100Hz ~ 20kHz

89dB spl

8 Ω

5-1/4"

(133mm)

" (25mm) Silk dome

10-1/2 x 6-1/2 x8"

(267 x 165 x 203mm)

9 lbs (3.9 kg)

HPS CENTER

15~150W

70Hz ~ 20kHz

91dB spl

8 Ω

Dual 5-1/4"

(133mm)

"(25mm) Silk dome

7-1/2 x 17-1/2 x 9"

(191 x 444 x 229mm)

17-1/2 lbs (7.9 kg)

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.

(800) 553-3332

www.infinitysystems.com

Infinity is a registered trademark of Infinity Systems, Inc.

Part No. 335158-001

HPS-1.5/4.5/Center OM 3/4/99 9:58 AM Page 8

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