Bose Acoustimass 15 User Manual Page 4

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OTHER FEATURES
Active/passive speaker system design: built-in amplification
In our active/passive speaker system design, the Acoustimass module has its own dedicated
amplifier for the bass frequencies, including the very lowest, allowing the system receiver or
amplifier to focus exclusively on powering the tiny cube speakers. Reproducing the low
frequencies of bass can require a disproportionately large amount of energy. Therefore, by
reducing the demand on the receiver’s amplifier, the active/passive system design provides much
more impactful, full-range sound from a typical system. In addition, it eliminates the need for a
separate subwoofer for easier home theater set-up.
VERY IMPORTANT NOTE ON SYSTEM SET-UP: If there is no LFE cable connected, be
sure that the receiver’s “LFE/Subwoofer” setting is OFF. Otherwise, there will be “NO LFE”
information sent into the module for reproduction.
New bass room compensation control
The new bass room compensation control allows you to adjust the overall volume of the new
Acoustimass module post-LFE relative to the cube speakers, without affecting the module’s
frequency response. This enables you to achieve the desired bass performance even in more
challenging listening environments.
“Discovery” questions for your customers:
_ Is your listening area in a basement or surrounded by stone construction? (It may be
better to turn bass control down. Try it and see.)
_ Is your listening area very open and spacious? (It may be better to turn bass control up.
Try it and see.)
LFE (Low Frequency Effects) control
The LFE control allows you to adjust (+ and -) the level of low frequency effects from the LFE
channel.
VERY IMPORTANT NOTE ON SYSTEM SETUP: If there is no LFE cable connected, be
sure that the receiver’s “LFE/Subwoofer” setting is OFF. Otherwise, there will be “NO LFE”
information sent into the module for reproduction.
Receiver compatibility
The new Acoustimass 15 Series II, Acoustimass 10 Series III and Acoustimass 6 Series III
systems are 5.1 speaker systems that are fully compatible with 5.1 digital and analog surround
sound receivers and amplifiers rated 10 to 200 watts per channel (Acoustimass 15 II and 10 III
systems), or 10 to 150 watts per channel (Acoustimass 6 III system) and rated 4 to 8 ohms. Refer
to their respective spec sheets for additional electronic compatibility ratings. The Acoustimass 15
Series II system can be upgraded to be compatible with 6.1-channel receivers with the optional
center surround channel addition kit.
About 6.1
The Acoustimass 15 Series II speaker system is upgradeable to a 6.1-channel speaker system
with the addition of the optional center surround channel addition kit. This allows it to be
compatible with receivers that have 6.1 amplified channels to provide more realistic, cinema-like
sound from six tiny, spacious-sounding cube speaker arrays and a hideaway Acoustimass
module. Because the center surround cube speaker array covers a broad soundstage, you get
the full, rich spacious performance of two rear mono speakers – from a single center surround
cube speaker array.
Note that there are several receivers on the market which advertise “6.1” but have only 5.1
amplified channels.
Ease of connections/simplified setup
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