User manual ACOUSTIC ENERGY LINEAR SUBWOOFER

[. . . ] OWNER'S MANUAL Linear 8 Rev E 1 16/8/05, 9:57 am Contents Page Section 1 2 3 4 5 6 7 8 9 10 Introduction Handling Installation Positioning Connecting Controls and System Setup Specification The Linear Range Warranty Contact Acoustic Energy 1. Introduction Welcome to the Linear Sub. 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 Sub performs optimally. [. . . ] 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. Diagram One over the page illustrates an idealised general home theatre speaker layout. If you are already familiar with the characteristics of your room, and the way speakers perform in it, you may already have a good feel for where to position your Linear Sub. However, installing any new component provides a good opportunity to review an existing set-up and perhaps make improvements. In principle there is great freedom of position of a sub-woofer in a listening room. In practice, however, the performance will be fundamentally influenced by the room and position. Small changes of location, or of the acoustic character of items in the immediate vicinity of the subwoofer, can significantly influence its performance. Initially choose a site for the Linear Sub along one of the walls of the listening room well away, but not equi-distant, from the corners. It is not necessary that the Linear Sub be positioned along the same wall as the main loudspeakers. Chose a solid wall (rather than a partition) and keep the subwoofer clear of any large resonant objects - furniture panels, heating radiators, etc. Don't worry if, thanks to the architecture or layout of your room, it is not practical to follow these guidelines exactly. The most important thing is to experiment with the different options that are practical and find the best one. Once your Linear Sub is connected and working, and you begin to become familiar with its performance, it is likely to be worthwhile experimenting a little more with its positioning. For example, moving the Linear Sub towards a room corner will increase the level of low bass. This gain may however be at the expense of bass definition and consistency over the listening area. Page 1 Linear 8 Rev E 1 16/8/05, 9:57 am Diagram One (or integrated amplifiers incorporating preamplifier outputs). Connect to these input sockets using an appropriate RCA Phono connection cable. Ensure Left Front Centre Right Front that the cable is of good quality. If connecting from a stereo amplifier, connect the left output to the left input and the right output to the right input. If connecting from an audio visual processor the Sub-woofer single subwoofer output may be connected to either left or right input. The binding-post high level inputs are intended to be used in conventional stereo systems where Left Surround Viewing/listening position the Linear Sub is to augment the low frequency Right Surround performance of a pair full range speakers, and where no appropriate line-level signal is available. Connect using simple twin core cable from either the amplifier's speaker terminals or from the fullAlternative or Extra Left Surround Alternative or Extra Right Surround range speaker terminals themselves. Take care not to reverse the polarity of any connections (connect positive to positive and negative to negative) or any left/right orientation (connect left to left and 5. [. . . ] This change in bass character with location is the variable that enables a good compromise position for the subwoofer to be found. Sub-woofer Phase Switching the subwoofer phase should be left to last. If a good subwoofer position is proving difficult to find, try again with the phase reversed. 7. Specification Type: Closed box, active subwoofer. [. . . ]