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咁我又想問吓點解咁計嘅?
係因為中高音係直線...而低音需要整體空間產生共鳴效果? ...
pam_jack 發表於 2010-4-7 20:12 
check this out : http://www.velodyne.com/wproduct/whproduct_new.aspx?sid=179r125j
go to the site and fill in the cubic feet for checking what size of woofer suit you.
SUBWOOFER SELECTION WIZARD
Which Velodyne is the right subwoofer for me?
A subwoofer's ability to offer good low frequency extension with ample output for the room (good impact), yet still offer very good definition (low distortion) can make or break a home theater and music system. Choosing the proper subwoofer for your individual room size is critical to creating a truly enjoyable home theater and music experience. Though there are individual considerations, we'll help take the guesswork out of selecting the ideal subwoofer for your room. Just follow the steps below.
Step 1 - Determine the total volume of your listening space
When determining the cubic feet (width x length x height) of your room please note we are concerned about the entire room not just the listening or viewing area. If a listening room is "open" to a kitchen, for example, the kitchen's volume must also be considered. Higher ceilings and cathedral ceilings are a critical factor in determining the room's total volume.
Step 2 - Consider Lifestyle, Listening Tastes and Expectations
Both your system's requirements and your personal tastes and expectations must also be taken into consideration. Lower distortion (higher definition and clarity) and better extension (plays lower) improve considerably as the price increases. Select the best you can afford, as every dollar invested in a lower distortion subwoofer will yield a greater improvement in sound than spending your dollars elsewhere. This is especially true if you will be listening to music on your system. An excellent subwoofer is a smart way to make even a modest system excel.
Note #1:
Keep in mind that larger units have the advantage in both output and low frequency extension, going deeper and playing louder. If smaller size is important, two smaller subwoofers will produce the output of the next larger size and can be easier to conceal. Remember that Digital Drive and Optimum subwoofers, and the magic of their technology, offer smaller subwoofer enclosures that have everything (low distortion, good low frequency extension, high output, and in the case of the Digital Drive subs, Digital Room Equalization).
Note #2:
While all Velodyne models can be placed in cabinetry or custom installed, DD-10, 12, 15 and 18, Optimum-8, 10 and 12, SPL-1500R, DLS-3500R, 3750R, 4000R, and 5000R are better suited for built-in applications. The SC Series SC-10, 12 and 15 are specifically designed to be built in and ideal for these built-in applications.
Step 3 - Determine the total volume of your listening space
When determining the cubic feet (width x length x height) of your room please note we are concerned about the entire room not just the listening or viewing area. If a listening room is "open" to a kitchen, for example, the kitchen's volume must also be considered. Higher ceilings and cathedral ceilings are a critical factor in determining the room's total volume.
Cubic Feet: Choose Cubic Feet 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 *
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Select from the four options (For rooms with a larger volume than 3500 cu. ft., please use option #3)
#1) I plan to have it built-in (to a cabinet, the floor, the ceiling or my wall)
#2) My lifestyle requires a very small sub (a 14.5" cube or smaller).
#3) The size of the subwoofer cabinet (the dimensions of the box) is not a key concern.
#4) I'm considering using a pair of subwoofers. (This will fill larger rooms with dynamic bass and produce a more even distribution of the bass throughout the room.) |
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發表於 2010-4-7 20:37
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