Technologies
8 Channel Amplifier
Each of the 5 mid-bass drivers and 3 tweeters is driven by a dedicated amplifier channel.
High and low pass filters are handled electronically with no passive componentry in the
signal path. This reduces phase shift and lowers distortion inherent in all passive
crossover networks.
Most noticeable is the greater dynamic range that individual amplifiers provide, adding
an effortless character that may be appreciated as an enhanced sense of realism.
Digital Signal Processing (DSP)
We have incorporated the most powerful DSP engine ever used in our amplified
Surroundbars capable of 160 MIPS (millions of instructions per second) including 58
discrete DSP blocks for delay, frequency shaping, crossover points, signal mixing and
parametric compression. Amplitude smoothing addresses even minor irregularities of all
active drive units. SRS HD4 and our proprietary SDA surround technology are actively
controlled to an even greater extent than our SurroundBar360 of 2010, providing strong
image localization cues and a greater sense of ambience and space.
Optimized Center Array™ (OCA)
All five 2 1/2” drive units contribute to the center channel performance in a sophisticated,
amplitude tapered cascaded array design. The SB9000’s OCA progressively low-passes
the outer and inner driver pairs to mitigate undesirable constructive and destructive
interference that otherwise would result in off-axis frequency response
irregularities. These “venetian blind” (technically known as comb-filtering) effects alter
vocal reproduction for different seating positions.
OCA
controls off-axis amplitude
response by appropriately limiting each mid-bass driver’s passband for minimal
interference for off-axis seating locations as follows: outer and inner driver pairs
reproduce center channel information from 80 - 450Hz and 80 - 700Hz respectively while
-Full Complement Bass Drive
