QPS 1 - Pregnant INFINITY - Free user manual and instructions

Product Type	Surround Sound Speakers (Pair)
Brand	Infinity
Model	QPS-1
Design	Quadrapole (4 drivers per speaker) for diffuse surround sound
Frequency Range	80 Hz – 20 kHz (-6 dB @ 80 Hz)
Sensitivity	88 dB SPL (2.83V/1m spatially averaged)
Impedance	8 ohms (5.5 ohms min)
Maximum Peak Output	108 dB SPL
Amplifier Requirements	10 – 80 watts per channel @ 8 ohms
Drive Units	Four 3-inch full-range drivers
Dimensions (W x H x D)	11 x 8.5 x 4.5 inches
Weight	7 lbs per speaker
Warranty	Limited 5-year warranty
Placement Options	Table-top (built-in stand) or wall-mount (keyhole)
Connection Terminals	Gold-plated binding posts (accepts banana plugs, spades, bare wire)
Finishes Available	Black or White
Cleaning Instructions	Soft cloth with mild detergent/water; no abrasive cleaners or polishes

Frequently Asked Questions - QPS 1 INFINITY

What is a quadrapole speaker design?

The quadrapole design uses four drivers per speaker to create a diffuse, non-localizable sound field, ideal for surround sound. It provides a wider listening area and more flexible placement.

Where should I place the QPS-1 speakers?

Place them level with or behind the listening area, at or above ear level (about 28 inches). Use the built-in stand for shelf/table placement or the keyhole for wall-mounting. Ensure the left speaker is on the left and the right on the right.

How do I wall-mount the QPS-1 speakers?

Use a #8 x 1.5-inch Phillips-head wood screw into a wall stud. Insert the screw head into the keyhole slot on the back of the speaker. Make sure the screw is securely anchored.

What type of speaker wire should I use?

Use high-quality speaker wire. The terminals accept bare wire, banana plugs, or spade connectors. Maintain correct polarity (+ to +, - to -) for proper sound.

How do I connect the speakers to my receiver?

Turn off all power. Connect each speaker to the corresponding surround channel on your receiver. For Dolby Digital, set the surround channels to 'Small'. Use the test tone to balance levels.

What is the recommended amplifier power?

The QPS-1 is suitable for amplifiers rated 10 to 80 watts per channel at 8 ohms. They have a sensitivity of 88 dB, so they work well with moderate power.

How do I clean the QPS-1 speakers?

Use a soft cloth slightly dampened with mild detergent and water. Vacuum the metal grille gently. Do not use any cleaning products or polishes.

What should I do if there is no sound?

Check that the receiver is on and the speaker wire connections are secure. Verify the correct polarity. If using a test tone, ensure the surround channels are active.

Can I use banana plugs?

Yes, the gold-plated terminals accept banana plugs. Insert the plug into the hole in the terminal post. Ensure a tight connection.

What is the warranty on QPS-1 speakers?

They come with a limited 5-year warranty. Keep your bill of sale as proof of purchase for any service requests.

USER MANUAL QPS 1 INFINITY

Quadrapole Surround Speakers Model QPS-1

Owner's Manual Part # 333-844-001

QUADRAPOLE DESIGN...

FLEXIBLE PLACEMENT...

ABOUT THIS MANUAL...

PARTS LIST...

TOOLS AND SUPPLIES...

INTRODUCTION

Infinity QPS-1 speakers are a pair of mirror-imaged, surround-sound speakers with an advanced quadrapole design that creates a non-specific sound source over a wider-than-usual listening area. This unique surround speaker design provides greater flexibility in speaker placement without sacrificing performance.

The QPS-1's elegant, thin-profile enclosure (in a black or white finish) is made to complement your home furnishings and its integrated display stand provides easy placement on a convenient shelf or table. Or, if you prefer, you can mount the QPS-1 speakers on side or back walls by using the built-in, direct-mount keyhole.

Please read the remaining pages before connecting and operating the Infinity QPS-1 speakers. Maximum performance is dependent on following these instructions, as well as those listed in the owner's manuals of associated components in your home theater system. Save these 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

Finish unpacking the speakers and check the contents. 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.

Please verify that the package contains the following items:

◆ (1) Quadrapole Left-Surround Speaker
◆ (1) Quadrapole Right-Surround Speaker
◆ Owner's Manual and Warranty Card

Depending on your choice of installation, you may also need the following tools and supplies:

◆ High-quality speaker wire
◆ Wire strippers
◆ (4) Banana plugs or spade terminals (optional)
◆ (2) #8 x 1 1/2" Phillips-head wood screws (for wall-mounting of speakers – optional)
◆ Drill with 1/8" bit (optional)
◆ Phillips screwdriver (optional)

SURROUND PLACEMENT CONCERNS...

STAND-UP OR WALL-MOUNT...

Figure 1. This overhead view shows a typical home theater plan. The QPS-1 speakers can be placed on stands in the noted areas or wall-mounted on side or back walls.

To help plan your home theater system, we've included two system applications, as shown in Figures 1 and 2. The first one represents a typical living room where the home theater system is the main focus. In the second application, the furniture is arranged for fireplace viewing and the entertainment center is in a corner.

Since QPS-1 surround speakers are a quadropole design, exact placement is not critical. For best results, position the speakers so they are level with or behind the listeners (typically seated on a couch). Place them at or above ear level (28" or 0.7m, depending on the available shelf or wall space). Make sure the speaker marked left (on its rear label) is on the left side (as you face forward), and the speaker marked right is on the right side (see Figure 1).

Set each speaker on any convenient shelf or table via a built-in display stand (see Figure 3 on page 4). Or use the built-in keyhole (see Figure 3 on page 4) for a more permanent mounting method.

Figure 2. This layout is often preferred when a fireplace is the centerpiece of the room.

TABLE-TOP PLACEMENT...

PLACEMENT AND MOUNTING

The Infinity QPS-1 surround speakers are equipped with integral display stands for easy placement on a shelf or table.

QPS-1 (Table-Top Placement)

Pure technical line drawing of a mechanical component with no text or symbols

Bottom View

WALL-MOUNT OPTIONS... IMPORTANT!

Figure 3. Use the built-in keyhole to mount QPS-1 surround speakers on walls.

NOTE: Be sure to fasten each #8 x 1 1/2" Phillips-head wood screw into a wall stud before hanging the speaker.

For wall-mounting, you can use the speaker's keyhole (see Figure 3).

If you are unsure of how to safely and securely wall-mount a speaker, please ask a home theater or hardware specialist for additional help.

WIRING AND POLARITY...

IMPORTANT!

Figure 4. QPS-1 surround speakers feature gold-plated terminals that can be connected in several different ways; e.g., banana plugs, spade terminals (not shown) and direct wiring.

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 the connections. Consult the owner's manuals (included with your amplifier, receiver or television) for connection and operation procedures.

QPS-1 speakers have gold-plated terminals that accept a variety of wire connectors (see Figure 4 below). Observe correct polarities when making speaker connections, as shown in Figure 5 (on page 6).

Connect each + terminal on the back of the amplifier, receiver or television to the respective + (red) terminal on each speaker. Connect the — (black) terminals in the same way.

Do not reverse polarities (e.g., + to - or - to +) when making connections.

After placing and wiring the speakers, turn on audio system power. Follow the instructions (packed with your A/V preamplifier or receiver) to calibrate the Dolby® Pro Logic® or Dolby Digital channels. Most components include a built-in test tone to help you balance the sound levels to all speakers in your system. During calibration, verify that each QPS-1 reproduces the test tone. If not, check the wiring connections and see the Troubleshooting chart (on page 7) for help.

CONNECTING SPEAKERS USING BANANA PLUGS (NOT SUPPLIED)

graph TD
    A["CenterFront Right"] -->|+| B["Front Left"]
    C["A/V Receiver (Rear Panel)"] -->|+| D["Front Right Center Left"]
    C -->|+| E["Front Left"]
    F["QPS-1 Surround Right"] --> G["QPS-1 Surround Left"]
    H["IMPORTANT! In Dolby Digital / AC-3® Set Surround Channels To SMALL."] --> I["QPS-1 Surround Right"]
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style F fill:#f9f,stroke:#333
    style H fill:#f9f,stroke:#333

Figure 5. Wiring diagram shows connections for a typical home theater system.

The QPS-1 cabinet does not require any routine maintenance. When cleaning is needed, first make sure power is off, and then use a soft cloth, pre-dampened with a solution of mild detergent and water, to remove any fingerprints or to wipe off dust. DO NOT USE ANY OTHER CLEANING PRODUCTS OR POLISHES.

The metal grille can be cleaned with gentle vacuuming.

TROUBLESHOOTING

SYMPTOM	CAUSE	SOLUTION
No sound Power is off See A/V preamplifier		or receiver owner's manual for operation and further help
	Speakers not connected Connect speakers(see pages 5 and 6)
Distortion with Defective A/V preampli- Repair defective AV volume control fier or receiver preamplifier or receiver near minimum
	Shorted speaker wires Check or repair wiring(see pages 5 and 6)
Distortion on music Dynamic soundtrack Turn down master peaks or sound (e.g., explosions) volume control to effects (e.g., pops or rapping noise)	causes speaker to “bottom out”	lower overall range
	Tone controls are set too high	Set bass and treble flat; use controls sparingly
Buzz, hum or crackle when connecting wires	Connecting wires with power on causes transient signal spikes	Connect wires only when audio system power is off
Buzz or hum when A/V preamplifier or receiver is on	Grounding problem	See A/V preamplifier or receiver owner's manual for operation and further help

SPECIFICATIONS PERFORMANCE DATA

QPS-1

Frequency Range: 80 \~ 20,000Hz (-6dB@80Hz)

Sensitivity: 88dB spl (2.83 volts/1 meter spatially averaged)

Impedance: 8 Ω (5.5 min.)

Maximum Peak Output: 108dB (spl on program)

Amplifier Requirements: Suitable for use with amplifiers

10 \~ 80W (@ 8 Ω)

DRIVE UNITS

Four 3 inch

DIMENSIONS

Width: 11 inches

Height: 8 12 inches

Depth: 4 12 inches

Weight: 7 pounds

Declaration of Conformity

We, Infinity Systems A/S

Kongevojen 1948

DK-3410 Birkend

DENMARK

declare in own responsibility, that the product described

in this owner's manual is in compliance with technical

standards:

EN 50 081-1/1992

EN 50 082-1/3.1995

Sleen Michaelsen

Infinity Systems A/S Birkened. DENMARK 10/97

Infinity is a registered trademark of Infinity Systems, Inc.

Dolby, Pro Logic and AC-3 are registered trademarks of Dolby Laboratories.