Jamo C 803 Owner/User Manual - Page 13

C 80 SUB If you go to www.Jamo.com or look at the CD-rom which came with the product, you can find a couple of useful subwoofer test signals. These will help you to set up your subwoofer so it delivers the maximum performance. Burn the test signals onto a CD and put them in your CD/DVD player. Placement rules for subwoofers When placing a subwoofer in a room, you have more freedom than you would with an ordinary speaker because a sub generates less-directional low frequencies, which make it harder for the human ear to determine the direction they are coming from. We do still recommend, however, that you place the C 80 SUB mid-way between the two front speakers if possible. This is because: A). The C 80 SUB will be easier to align, both level- and phase-wise, with the speakers. B). Even though low frequencies are less-directional, higher frequencies can make the subwoofer easier to pinpoint sonically. If it isn't possible to place the C 80 SUB between the two front speakers, the advanced electronics provided in the subwoofer still makes an easy and seamless integration possible. Three different placement positions - sound reflections and amplification There are basically three different ways to place a subwoofer, either of which will affect the overall sound level. A). Placing it away from any wall will give the lowest sound level, but typically the most linear frequency response. B). Placing it next to a wall will increase the low frequency level. C). If it is positioned up against two walls, i.e. in a corner, the subwoofer will - because of wall reflections - accentuate the low frequencies even more. $ # " 14