Yamaha offers several amplifiers that feature Digital Soundfield Processing (DSP). When the first unit, the DSP-1, was released it featured controls that allowed users to adjust the parameters to the room and an 88-channel digital delay device. Soon after, Yamaha combined DSP units with Dolby Surround technology.
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First released in 1991, the DSP-A1000 features a "Cinema DSP" option. The enhanced feature combined Yamaha's DSP technology with the Dolby decoder to create four-channel sound that mimics 35mm and 70mm equipped cinemas. The system has seven built-in amplifiers that connect to the 80 watt left, centre and right main speakers and the four 25 watt effects loudspeakers.
The DSP-E1000 is very similar to the A-1000, but replaces the left and right power amplifiers with pairs of in and out line-level phono sockets of 1 volt. The power output per channel is 80 watts for the centre with four 25 watt effects. The amplifier is 435mm by 131mm by 385.5mm and weighs 12.5kg.
The Digital Sound Projector YSP-1000 offers seven cinema DSP programs and a two volume mode with night listening enhancer and TV equal volume mode. The system features Dolby Digital, DTS, Dolby Pro Logic II and DTS Neo:6 compatibility. It offers TruBass and IntelliBeam automated system calibration with five beam modes. The YSP-1000 can be placed on a shelf or wall-mounted and offers a slim profile to work with flat televisions and monitors. The digital amplifier offers 120 watts total power, is 1,030mm by 194mm by 118mm and weighs 13kg. The YSP-1000 features 1-5/8 inch by 40 inch drivers and 4-3/8 inch by 2 inch woofers.
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