Concept 300 - Speaker Q-ACOUSTICS - Free user manual and instructions

Product type	Passive bookshelf speaker
Brand	Q-ACOUSTICS
Model	Concept 300
Frequency response (-6 dB)	55 Hz – 30 kHz
Impedance (average)	6 Ω
Minimum impedance	4.7 Ω
Sensitivity	84 dB/W/m
Recommended power	25 – 200 W
Distortion (120 Hz - 20 kHz)	< 0.2 %
Crossover frequency	2.5 kHz
Woofer	165 mm (6.50 inches)
Tweeter	28 mm (1.10 inch)
Weight (per speaker)	14.5 kg
Dimensions (W x H x D)	220 x 355 x 400 mm
Wiring type	Bi-wire capable
Filter jumper	Treble adjustment: -0.5 dB / normal / +0.5 dB
Foam plugs included	Yes (to reduce bass if placed near a wall)
Included accessories	Manual, cleaning cloth, jumper, foam plugs
Optional stands (reference)	Pair of Q Concept 300 stands (492 x 688 x 430 mm)
Warranty	4 years (extendable to 5 years on registration)
Maintenance	Slightly damp cloth, no solvents
Safety	Do not expose to water or heat, do not disassemble

Frequently Asked Questions - Concept 300 Q-ACOUSTICS

What is the recommended amplifier power?

The recommended power for the Concept 300 speakers is between 25 and 200 W.

How to position the Concept 300 speakers?

Place the speakers at a distance of 2 to 4 meters apart, equidistant from the listener. A clearance of at least 600 mm behind the speaker is recommended. You can angle the speakers inward to improve stereo imaging.

How to use the foam plugs?

The foam plugs are used to reduce bass if the speakers are placed near a wall. Insert them into the rear port without pushing them too deep. This reduces the bass level but improves definition.

How to bi-wire?

To bi-wire, remove the links between the upper and lower terminals. Use two twin cables per speaker: connect one pair to the tweeter (HF) terminals and the other to the woofer (LF) terminals, then connect each pair to the amplifier respecting polarity.

How to adjust the filter jumper?

The jumper at the back adjusts the treble response. Position it between the two left terminals for normal level, remove it for -0.5 dB (less treble), or place it between the two right terminals for +0.5 dB (more treble). Adjust according to room acoustics.

What is the warranty of the Concept 300 speakers?

Q Acoustics offers a 4-year warranty against defects in materials and workmanship. It can be extended to 5 years by registering the product at qacoustics.co.uk/register.

How to clean the speakers?

Clean the cabinets with a slightly damp cloth only. Do not use solvents or abrasive products. Clean the grilles with a soft brush. Avoid touching the drivers.

Can the speakers be used without the grille?

Yes, but it is advisable to protect the drivers from shocks and dust. Put the grilles back on in the presence of children or pets.

What is the required break-in time?

A break-in period of at least 24 hours of normal use is recommended for the drivers to reach optimal performance.

What to do in case of problem or damage?

In case of defect, first contact your dealer. If possible, use the original packaging for transport. The warranty does not cover misuse or normal wear.

USER MANUAL Concept 300 Q-ACOUSTICS

Abstract black logo design resembling a stylized letter 'Q' (no text or symbols)

ACOUSTICS

Concept 300

OWNER'S MANUAL

ENGLISHEN 01 DEUTSCHDE 12 ESPAÑOLES FRANÇAISFR 32 ITALIANOIT 42 NL NEDERLANDS 52 POLSKIPL 62 PORTUGUESPT 72 РУССКИЙRU 82 SVENSKASV 中国ZH 102

Gray-scale icon of a speaker with two concentric circles and a 'Q' symbol at the base (no text or symbols beyond the icon)

Contents

4 Important safety information and warnings
5 Package contents
5 Introduction
6 Set up
6 Speaker installation
6 Speaker positioning
8 Connections
8 Terminals and connectors
8 Standard connections
8 Bi-wire connections
9 Crossover jumper
10 Running in
10 Aftercare
10 Accessories
11 Warranty
11 Specifications

Important Safety Information and Warnings

1. Safety Information and Warnings

Before making any connections to your loudspeakers make sure that all active units in your system are switched off at the mains.

When switching on your sound system or changing input sources, set the main volume control at a low level. Turn up the level gradually.

NEVER play your sound system at full volume. The position of the volume control is deceptive and does not indicate the power level of the system. Using very high volume settings may damage your hearing.

1.1. Instructions

Read and understand these instructions before you use your loudspeakers. If damage is caused by failure to follow these instructions, the warranty will not apply. Please keep these instructions in a safe place.

Read these instructions.

Keep these instructions.

Heed all warnings.

Follow all instructions.

Do not use this apparatus near water.

DO NOT connect your loudspeaker terminals to the mains supply.

Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers that produce heat.

Only use attachments/accessories specified by the manufacturer.

Unplug this apparatus during lightning storms or when unused for long periods of time.

2. Unpacking your loudspeakers

Unpack the speakers fully. Lift the speakers from the cartons by holding the cabinets. Do not use the protective bags to lift them. The Concept 300s are heavy - get assistance to lift them.

When manoeuvring loudspeakers, do not drag them across the floor as this may cause damage - lift each speaker before moving it. Be cautious with buttons and belt buckles as these easily cause cosmetic damage.

Check the loudspeaker carefully. If any items are damaged or missing, report this to your retailer as soon as possible.

Retain the packaging for future transport. If you dispose of the packaging, please do so following all recycling regulations in your area.

3. Installation

• Only use the accessories supplied with the Concept 300.
• To prevent injury, this apparatus must be securely mounted in accordance with the installation instructions.
• If you play your loudspeakers without their grilles fitted, be careful to protect the drive units from damage.
• DO NOT dismantle the loudspeaker. You will invalidate the warranty.
• The use of this apparatus is safe to use in tropical and/or moderate climates.

3.1. Moisture

• To reduce the risk of fire or electric shock, this apparatus should not be exposed to rain, moisture, dripping or splashing.
- Do not use this apparatus near water.

3.2. Servicing

Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

4.0. Symbols used on this product

Hazard Warning Symbol

The 'exclamation mark' calls attention to features for which you should read this manual closely to prevent operation and maintenance problems.

CAUTION: To prevent electric shock, match wide blade of plug to wide slot, fully insert.

Waste Electrical and Electronic Equipment Symbol

This symbol indicates that when the unit is to be discarded, it must be separated from other household-type waste and sent to separate collection facilities for recovery and recycling of electrical and electronic equipment.

Please make sure you are familiar with your local rules on the separate collection of electrical and electronic products.

Package Contents

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1 x Concept 300

1 x Owner's manual

1 x Cleaning cloth

1 x Jumper

1 x Foam bung

Thank you for purchasing a pair of Q Acoustics Concept 300.

This manual is intended to take you through the setup and installation of the Concept 300. It will help provide a trouble free setup and ensure optimum performance from the product.

Please read the instructions, important safety information and warnings carefully before installation and use, to ensure the safe and satisfactory operation of this product.

The objective with the Concept 300 was to concentrate on achieving a perfect balance between art and science to produce a loudspeaker that would be stylish, contemporary, fine-sounding and accurate.

A talented team of people has produced a beautiful loudspeaker that can be manufactured so consistently that the sound and performance of every unit will be identical.

We hope you enjoy the Q Acoustics experience.

Set up

Speaker Installation

The Concept 300 speakers have been designed and tested to be used on the Concept 300 Floor Stand for the optimum listening experience.

Every Concept 300 has been factory set to level the speakers as the base is isolated from the main speaker body using our custom suspension system. This isolating technology allows for a calculated amount of movement within the speaker base so please do not be alarmed by this during setup.

Please contact your local dealer if you are unsure when setting up your Concept 300.

Speaker Positioning

The speakers should be placed 2.0 - 4.0 m apart and equidistant from the seated listener. Turning the speakers slightly inwards will sharpen the stereo image at the expense of a narrower sound stage.

0.6 - 1.0 m 2.0 - 4.0 m 1.0 - 1.5 m

Foam Bung

Concept Series speakers are rear ported and designed to work best with at least 600 mm of free space behind them. Generally, the closer the speakers are to the rear wall the more the bass frequencies will be reinforced until they overwhelm the overall sound. In this instance closing the rear port with the foam bung will tend to reduce bass, which is useful when domestic circumstances demand that the Concept 300 is used closer to a rear wall.

Ensure the bungs are fitted snugly into the port without inserting them too far. You will find the level of bass is reduced but definition and bass extension is increased. The optimal position of the speakers will only be found through experimentation and by making small adjustments during the first few listening sessions.

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Connections

Terminals and Connectors

The Concept 300s are bi-wireable. A bi-wireable crossover has four terminals. The upper pair of terminals connect to the treble (HF) speaker and the lower pair to the bass (LF) speaker. The crossovers are pre-fitted with removable links to connect the terminal pairs and configure the loudspeaker in single-wire mode. This allows you to connect the loudspeaker conventionally using one pair of cables.

Standard Connections

Connect the RED (+) terminal of the RIGHT loudspeaker to the RED, Positive (+) terminal on the RIGHT channel of the amplifier.

Connect the BLACK (-) terminal of the loudspeaker to the matching BLACK, Negative (-) terminal of the amplifier.

Repeat this procedure for the LEFT channel.

Bi-Wire Connections

To bi-wire: Prepare two twin cables for each loudspeaker. Unscrew all the loudspeaker terminals and remove both links. Now connect the treble terminals and the bass terminals to the amplifier following the procedure described in standard connections. Refer to illustration above.

Standard Connections

- HF - CE X - LF 0 + * *

Bi-Wire Connections

Diagram of an electronic device with labeled components including HF, LF, and CE indicators, showing wiring connections.

Crossover jumper

The Concept 300 loudspeaker system features an elegant way to allow the user to tailor high frequency response to the particular listening environment by the placement of a simple jumper bar on the rear of the speaker.

With the jumper fitted to the two leftmost terminals the speakers will deliver the level of HF energy the designer intended for a 'normal' room acoustic. Removing the jumper completely, delivers a response with less HF (treble) energy than the "ideal" response and a small increase in HF energy will be obtained with the jumper fitted to the two rightmost terminals.

Heavily furnished rooms may require a small increase in HF level whereas sparsely decorated rooms may be quite reverberant and require a response with slightly less HF energy.

Please bear in mind that there is no "correct" position. The final position should be the one which gives the listener maximum enjoyment when listening to their favourite music.

Less treble (-0.5dB) Normal More treble (+0.5dB)

HF CE LF 0 + - + - - - 0 + -

HF CE LF 0 + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

0 + HF CE LF + 0 + 0 +

Running In

In common with many types of complex mechanical systems the Concept 300 loudspeaker will not deliver its optimum performance until it has been in use for a certain initial running-in period. The correct performance of a loudspeaker depends in part on the compliance of the suspension materials used during manufacture and these will only attain their long term steady state once they are operating at the temperature and modulus of elasticity specified during the design phase. It can take several days for a speaker which has been stored in a cold warehouse to finally reach room temperature and so we recommend at least 24 hours of normal use for the drive units to loosen up sufficiently for them to perform as the designer intended.

Accessories

Q Concept 300 stand pair

(W x H x D) 492 x 688 x 430mm

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Aftercare

Cabinet Care

Clean cabinets only with a lightly dampened cloth. Do not use solvent based cleaning materials. Never use abrasives of any kind.

The cabinet surfaces will usually only require light dusting. Should an aerosol or other cleaner be used, apply the cleaner onto the cloth first and not directly onto the product. Test a small area first, as some cleaning products may damage the finish. Avoid products that are abrasive, or contain acid or alkaline agents. Do not use any cleaning materials on the drive units and avoid touching them as damage may result.

Real wood veneers are treated with an ultra-violet resistant lacquer to minimise changes in colour over time. Nevertheless, like all natural materials, a degree of colour change is to be expected. Keep the speakers away from direct sources of heat such as radiators and warm air vents in order to minimise the possibility of the wood veneer cracking. Keep the speakers away from direct bright sunlight.

Grilles

Grilles should only be cleaned using a soft brush when necessary.

If using the Concept 300 with the grilles removed, remember to replace them if pets or children are present.

Drive Units

Do not touch the drive units as they are easily damaged when exposed.

Warranty

Q Acoustics passive loudspeaker products are warranted free of defects in materials and workmanship for a period of 4 years from the date of purchase. During the warranty period Q Acoustics will, at its option, repair or replace any product found to be faulty after inspection by the company or its appointed distributor or agent.

Misuse and fair wear and tear are not covered by warranty.

Goods for repair should in the first instance be returned to the supplying dealer. If this is not possible contact Q Acoustics or their appointed distributor for your area to determine the correct warranty procedure. If possible the original packaging should be used to return the product as damage sustained during transit to the repair centre is not covered by the warranty. The warranty does not in any way affect your legal rights.

Warranty can be extended to 5 years by registering your product at qacoustics.co.uk/register.

For service information contact: [e-mail]

Q Acoustics

Stortford Hall Industrial Park

Bishops Stortford, Herts, UK

CM23 5GZ

Specifications

Performance

Frequency Response (-6dB) 55 Hz - 30 kHz

Average Impedance 6 Ω

Minimum Impedance 4.7 Ω

Sensitivity

Recommended Power 25 – 200 W

Distortion (120Hz - 20kHz) <0.2%

Crossover Frequency 2.5 kHz

Driver dimensions

Mid / Bass Driver 165 mm (6.50 in)

High Frequency Driver 28 mm (1.10 in)

Weight and dimensions

Weight (per cabinet) 14.5 kg (31.9 lbs)

Cabinet inc. base and terminals 220 x 355 x 400 mm

(W x H x D) (8.6 x 13.97 x 15.75 in)

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ACOUSTICS

Concept 300

Benutzerhandbuch

Inhaltsverzeichnis

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1 × Concept 300

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Anschlüsse

- HF - CE X - LF 0 + * *

Bi-Wire-Anschlüsse

Diagram of an electronic device with labeled components including HF, LF, and CE indicators, showing wiring connections.

Crossover-Jumper

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Nachsorge

Gehäusepflege

Stortford Hall Industrial Park

Bishops Stortford, Hertfordshire, UK

CM23 5GZ

Technische Daten

Leistung

Frequenzgang (-6 dB) 55 Hz–30 kHz

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ACOUSTICS

Concept 300

MANUAL DEL USUARIO

Índice

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Conexiones

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Puente cruzado

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Cuidado

Stortford Hall Industrial Park

Bishops Stortford, Herts, Reino Unido

CM23 5GZ

Especificaciones

Rendimiento

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ACOUSTICS

Concept 300

MANUEL DU PROPRIÉTAIRE

Sommaire

Line drawing of a speaker with two circular speakers and a G button (no text or symbols)

1 Concept 300

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Connexions

- HF - CE X - LF 0 + * *

Diagram of an electronic device with labeled components including HF, LF, and CE indicators, showing wiring connections.

Technical line drawing of a tripod-mounted surveying instrument with no visible text or symbols

Stortford Hall Industrial Park

Abstract black logo design with no text or symbols

ACOUSTICS

Concept 300

MANUALE UTENTE

Sommario

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1 Concept 300

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Collegamenti

Collegamenti bi-wiring

- HF - CE X - LF 0 + * *

Collegamenti bi-wiring

Diagram of an electronic device with labeled components including HF, LF, and CE indicators, showing wiring connections.

Ponte crossover

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Stortford Hall Industrial Park

Bishops Stortford, Herts, UK

CM23 5GZ

Specifiche

Prestazioni

Distorsione (120 Hz-20 kHz) <0.2%

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ACOUSTICS

Concept 300

GEBRUIKERSHANDLEIDING

Inhoudsopgave

Line drawing of a speaker with two circular speakers and a G button (no text or symbols)

1 x Concept 300

Technical line drawing of a mechanical device with a circular component and three connected ports (no text or symbols)

Aansluitingen

Diagram of an electronic device with labeled components including HF, LF, and CE indicators, showing wiring connections.

Crossover-geleiderbrug

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Nazorg

Stortford Hall Industrial Park

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ACOUSTICS

Concept 300

INSTRUKCJA OBSŁUGI

Spis treści

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Technical line drawing of a mechanical device with a circular component and three connectors (no text or symbols)

Podłączenia

Styki i złącza

- HF - CE X - LF 0 + * *

Diagram of an electronic device with labeled components including HF, LF, and CE indicators, showing connections between terminals.

Zworka zwrotnicy

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Obsługaposprzedaży

Pielęgnacja obudowy

Stortford Hall Industrial Park

Bishops Stortford, Herts, Wielka Brytania

CM23 5GZ

Danetechniczne

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ACOUSTICS

Concept 300

MANUAL DO UTILIZADOR

Índice

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1 x Concept 300

1 x Manual do utilizador

1 x Pano de limpeza

1 x Fio-ponte

1 x Tampa de espuma

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Ligações

Terminais e conectores

Diagram of an electronic device with labeled components including HF, LF, and CE indicators, showing wiring connections.

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Cuidadosposteriores

Stortford Hall Industrial Park

Bishops Stortford, Herts, Reino Unido

CM23 5GZ

Especificações

Desempenho

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ACOUSTICS

Concept 300

Line drawing of a speaker with two circular speakers and a G button (no text or symbols)

Technical line drawing of a mechanical device with a circular component and three connected ports (no text or symbols)

Соединения

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Stortford Hall Industrial Park

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ACOUSTICS

Concept 300

ÄGARMANUAL

Innehåll

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1 x Concept 300

1 x Ägarmanual

1 x Rengörningsduk

1 x Jumper

1 x skumgummipropp

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Anslutningar

Diagram of an electronic device with labeled components including HF, LF, and CE indicators, showing wiring connections.

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Efterskötsel

Skötsel av kabinett

Stortford Hall Industrial Park

Bishops Stortford, Herts, Storbritannien

CM23 5GZ

Specifikationer

Prestanda

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ACOUSTICS

Concept 300

用户手册

目录

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1 台 Concept 300

1 本用户手册

1块抹布

1条跨接线

1个泡沫塑料塞

感谢您购买 Q Acoustics Concept 300。

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连接

接线端和连接器

Diagram of an electronic device with labeled components including HF, LF, and CE indicators, showing wiring connections.

交叉跨接线

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售后保养

箱体保养

Stortford Hall Industrial Park

Bishops Stortford, Herts, UK

CM23 5GZ

规格

性能

Our policy is one of continuous product improvement.

We reserve the right to change the designs and specifications without notice.

This document contains information that is subject to change without notice

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