Yamaha 376 User Manual

■

A bi-amplification connection uses two amplifiers for a 
speaker. One amplifier is connected to the woofer section 
of a loudspeaker while the other is connected to the 
combined mid and tweeter section. With this arrangement 
each amplifier operates over a restricted frequency range. 
This restricted range presents each amplifier with a much 
simpler job and each amplifier is less likely to influence 
the sound in some way. The internal crossover of the 
speaker consists of a LPF (low pass filter) and a HPF (high 
pass filter). As its name implies, the LPF passes 
frequencies below a cutoff and rejects frequencies above 
the cutoff frequency. Likewise, the HPF passes 
frequencies above its cutoff.

■

With the component video signal system, the video signal 
is separated into the Y signal for the luminance and the P

B

 

and P

R

 signals for the chrominance. Color can be 

reproduced more faithfully with this system because each 
of these signals is independent. The component signal is 
also called the “color difference signal” because the 
luminance signal is subtracted from the color signal. A 
monitor with component input jacks is required in order to 
output component signals.

■

With the composite video signal system, the video signal 
is composed of three basic elements of a video picture: 
color, brightness and synchronization data. A composite 
video jack on a video component transmits these three 
elements combined.

■

Dialogue Normalization is a feature of Dolby Digital or 
DTS, which is used to keep the programs at the same 
average listening level so the user does not have to change 
the volume control between Dolby Digital or DTS 
programs. 

■

Dolby Digital is a digital surround sound system that gives 
you completely independent multi-channel audio. With 3 
front channels (front L/R and center), and 2 surround 
stereo channels, Dolby Digital provides 5 full-range audio 
channels. With an additional channel especially for bass 
effects, called LFE (Low Frequency Effect), the system 
has a total of 5.1-channels (LFE is counted as 0.1 
channel). By using 2-channel stereo for the surround 
speakers, more accurate moving sound effects and 
surround sound environment are possible than with Dolby 
Surround. The wide dynamic range from maximum to 
minimum volume reproduced by the 5 full-range channels 
and the precise sound orientation generated using digital 
sound processing provide listeners with unprecedented 
excitement and realism. With this unit, any sound 
environment from monaural up to a 5.1-channel 
configuration can be freely selected for your enjoyment.

■

Dolby Digital EX creates 6 full-bandwidth output 
channels from 5.1-channel sources. This is done using a 
matrix decoder that derives 3 surround channels from the 
2 in the original recording. For the best results, Dolby 
Digital EX should be used with movie sound tracks 
recorded with Dolby Digital Surround EX. With this 
additional channel, you can experience more dynamic and 
realistic moving sound especially with scenes with “fly-
over” and “fly-around” effects.

■

Dolby Pro Logic II is an improved technique used to 
decode vast numbers of existing Dolby Surround sources. 
This new technology enables a discrete 5-channel 
playback with 2 front left and right channels, 1 center 
channel, and 2 surround left and right channels instead of 
only 1 surround channel for conventional Pro Logic 
technology. There are three modes available: “Music 
mode” for music sources, “Movie mode” for movie 
sources and “Game mode” for game sources.

■

Dolby Pro Logic IIx is a new technology enabling discrete 
multi-channel playback from 2-channel or multi-channel 
sources. There are three modes available: “Music mode” 
for music sources, “Movie mode” for movie sources (for 
2-channel sources only) and “Game mode” for game 
sources.