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Introduction Welcome to the Linear One. Perhaps more than any other hi-fi product, speakers are sensitive to installation so please take a little time to read this manual and to follow, as far as practical, the installation guidelines it contains. Careful installation will help ensure that your Linear Ones perform optimally. Should you have any questions not covered here we are happy to try and answer them either by telephone or email. Contact information can be found in Section 11. Following this introduction, the Manual is divided into sections covering handling, installation, positioning, amplifier compatibility, connection, 2. Handling The Linear One is a relatively delicate precision engineered product that can be damaged by inappropriate handling. Please take care when unpacking or moving the speakers not to touch either of the drivers. Damage to a driver will at best degrade a Linear One’s performance and at worst result in its complete failure. The enclosure surfaces should also be handled sympathetically. Any cleaning should only require a soft cloth, slightly dampened if necessary. Be wary of using any polishes or solvent based cleaning agents. The packaging should be retained for future use. listening, matching products, specifications, warranty and contact information. We recommend 3. Installation that you read at least the first five of these sections The Linear One is intended to be used mounted on speaker floor-stands carefully before installing and using your Linear relatively clear of room boundaries. Alternative mounting arrangements Ones. such as wall brackets are possible although these may result in reduced performance. If wall brackets are to be used they should be as rigid as possible and firmly attached to brick-built walls. The construction style, rigidity and dimensions of the floor-stands are of critical significance to the performance of the Linear One. Stands should broadly follow the specification below. Your retailer or distributor will be able to offer advice. Recommended Floor-stand Specification. Construction Style: Direct coupled multi-pillar. Mass Loading: Preferred. Overall height: 0.50 - 0.65 m (Linear One top panel to be just below head height when seated). Top plate Dimensions Minimum width: 140 mm Maximum width: 190 mm Minimum depth: 190 mm Maximum depth: 250 mm Top plate interface: Direct coupled tri-point or damped-compliance. Floor interface: Floor spikes (M6 minimum). Page 1 Linear 1 Rev H 1 16/8/05, 11:19 am 4. Positioning The position of speakers within the listening room is likely to have more influence over their performance than any other aspect of their installation. It is worth spending some time experimenting both with the finer points of speaker positioning, as well as the larger scale issues of room layout. If you are already familiar with the acoustic characteristics of your listening room, and the way speakers perform in it, you may already have a good feel for where to position your Linear Ones. However, installing any new hi-fi component provides a good opportunity to review an existing set-up and perhaps make improvements. The position requirements for a pair of Linear Ones installed in an average sized and furnished listening room (say 4m x 5m) are as follows: • Between 0.3 and 1.0 metres from the rear wall. • 1.0 metres from side walls. • Between 2.5 and 3.5 metres apart. • Clear of corners. • Angled inward towards the listening position. Don’t worry if, thanks to the architecture or layout of your room, it is not practical to follow each requirement. The most important thing is to experiment with the different options that are practical and find the one that works best. While it is often the first instinct to position a pair of speakers against the shorter wall of a rectangular room, it is often the case that a position against the longer wall will produce better results. This is because the long wall position tends to result in less prominent reflections from the side walls of the room. However, whether used against the long or short wall, it is important that each speaker of the pair is located in a similar acoustic environment (different environments would be, say, a curtained area and a solid wall). The acoustic character of the side walls of the room in the area where the main reflection between speakers and listening position will occur should also be similar. Diagram One illustrates a typical layout. Once your Linear Ones are connected (see Section 5) and working, and you begin to become familiar with their performance, it is likely to be worthwhile experimenting a little more with their positioning. Reducing the distance between the speakers and the rear wall will increase the level of bass and low midrange making the speakers sound warmer. The warmth however is likely to be gained at the expense of some mid-range clarity and stereo image focus and depth. Increasing the toe-in angle of the speakers may regain some image focus but again t...