Yamaha DSP-A1000 Digital Sound Field Processing Amplifier Amp (No Remote)

Description: The DSP-A1000, which Yamaha calls a Digital Sound Field Processing Amplifier, requires only the addition of signal sources and loudspeakers to serve as the core of a versatile audio/video (A/V) system. It combines refined digital signal-processing circuits, a preamplifier providing switching and control facilities for both audio and video sources, Dolby Pro Logic surround-sound decoding, and no fewer than seven channels of audio amplification.The DSP-A 1000’s Dolby Pro Logic system uses digital circuitry, with an automatic input-level balance control that maintains optimal surround-sound settings without user attention. It also has an “Enhanced” Dolby Pro Logic mode said to create a sound field typical of a standard (35-millimeter) movie theater. When this mode is used with the amplifier’s Movie Theater DSP program, according to Yamaha, it re-creates the broader sound field typical of a 70-millimeter theater. Another special feature is a “directional enhancement” circuit that can be used with the Concert Video and TV Theater DSP modes to give the listener a sense of being in the midst of the audible action without making it sound detached from the screen.Despite its considerable versatility, the DSP-A1000 is surprisingly simple to install, set up, and use. In normal operation, the front panel has only two visible knobs (volume and the input selector), a power pushbutton, a tape-monitor button (labeled tape 2), and a small LCD window. The input sources are identified as auxiliary, VCR 1, VCR 2, TV, LD (laser videodisc), DAT/Tape 1, tuner, CD, and phono.Opening the hinged door that extends across the bottom of the panel reveals three small knobs (bass, treble, balance) and a REC OUT rotary switch that enables the user to record audio or video programs from any source independently of the one being heard or seenSeveral narrow bar switches, labeled SET MENU, INPUT TRIM, EFFECT, and PROGRAM, provide a wide range of control over the DSP-A 1000's digital signal-processing parameters. Their settings, and those of other operating controls, are shown in the front-panel display window or on the screen of a video monitor connected to the amplifier’s video output. Also behind the hinged door are a headphone jack, a bass extension button, and auxiliary composite-video, audio, and S-video inputs for connection of a camcorder or other temporary program source.The seven power amplifiers in the DSP-A 1000 include the main (left and right) front channels, rated at 80 watts each into 8 ohms from 20 to 20,000 Hz with no more than 0.015 percent total harmonic distortion plus noise (THD + N), a center front channel with a similar rating, a pair of front channels rated at 25 watts from 20 to 20,000 Hz into 8 ohms at 0.05 percent THD + N, and a similar pair of rear effect channels. The amplifiers are also rated to drive 6-ohm loads, with power limit^ of 100 and 30 watts per channel for the main and center and the effects channels, respectively.The rear apron has phono jacks for the inputs (and outputs, where applicable) of all sources, plus the video-monitor output. All video circuits are also provided with S-video jacks. Insulated binding posts for all speaker outputs accept dual banana plugs or stripped wire leads. The center-channel speaker outputs can be switched to drive either a single speaker or a pair. Preamplifier outputs for the main and center channels can be separated from their respective power amplifiers by removing jumper plugs. There is a line-level mono (full-range) output and an adjustable line-level subwoofer output (below 200 Hz) as well as front and rear efifects-channel line outputs for driving external amplifiers. Two of the three AC outlets are switchedThe DSP-A 1000 comes with a Yamaha RCX remote control that can operate virtually all of its many functions. In fact, the RCX controller should be used from the listening position to adjust the DSP and other parameters for the desired effect, with the display of menus and control options on the TV screen as a guide (the same information is also shown in the DSP-A 1000’s front-panel window, but it is readable only at fairly short distances). Both the volume and input-selector controls are motor driven when operated remotely, with red LED index marks to show their settings at a distance.The RCX remote control is also preprogrammed to operate compatible Yamaha tuners, tape decks, VCR's, videodisc players, CD players, and DAT decks. The control buttons are grouped and colored according to their functions to minimize confusion. In addition, the RCX can learn the basic infrared command codes for most other audio and video components that might be used in a system with the DSP-A1000. (We found that it learned the play and pause/stop commands for a couple of CD players but would not operate their search and track-skipping functions.)

Price: 150 USD

Location: Las Vegas, Nevada

End Time: 2024-12-28T23:58:58.000Z

Shipping Cost: N/A USD