Yamaha YHF-797BG Fascicule

When processing and transmission of 

the audio signal is simple and direct there 

is less chance of it being affected by noise 

and distortion. Yamaha’s amplifier design 

technology called ToP-ART features I/O 

(input to output) Direct Symmetrical 

Design, with left and right channels 

organized in a straight, symmetrical layout 

for highest signal purity. 

 

Engaged by a front panel switch, it 

matches CD signal levels so each stage 

produces less noise, resulting in improved 

S/N ratio and maintenance of the amp’s 

total gain balance. 

 

Rather than the usual 20Hz–20kHz 

frequency response, Yamaha has given 

the RX-797 the ability to handle 

frequencies from 10Hz to100kHz (1dB). 

Although the ear cannot hear the higher 

frequencies, it has been proven that these 

harmonics can affect sound reproduction 

quality. DVD-Audio, Super Audio CD and 

other new formats will be able to output 

sound over this range, so the RX-797 is 

fully compatible with products using these 

formats. 

 

Level variations due to high amp 

impedance tend to reduce an amplifier’s 

damping factor, and frequency variations 

cause it to fluctuate. This circuit cancels 

the effect of these variations, maintaining 

a high, stable damping factor, for superior 

articulation of all sounds and better 

frequency response. 

 

The RX-797 is capable of delivering large 

amounts of reserve power for accurate 

reproduction of high energy peaks. This 

emphasizes the music’s dynamic qualities 

and provides a sharper sound image. 

 

The laser pickup is isolated on a floating 

mechanism so its delicate operation 

cannot be affected by vibration. 

 

Conventional tracking servo circuitry 

cannot completely overcome errors 

caused by disc defects, warpage, dust 

and so on. This system uses a 

microcomputer to monitor the signal, 

adjusting pickup tracking and focus, as 

well as spindle motor speed, to 

compensate for any problems. 

Because every single part affects sound 

quality, Yamaha uses nothing but the best. 

The special Low-Impedance Power 

Supply, for example, uses extra thick wires 

to ensure that power is absolutely stable 

even under low-impedance conditions. 

 

This changer is 5-disc carousal type, giving 

you the benefits of extended playing time 

and direct selection from any of five discs. 

And with PlayXchange, you can change up 

to four discs while the fifth continues to 

play. You don’t have to interrupt the music 

to change a disc and you’re not limited to 

change only one disc at a time. What’s 

more, when you press the open/close 

button, the tray opens all the way, 

allowing you to change all discs at once. 

 

This CD changer can handle CD-R and CD-

RW discs with ordinary songs. (Note that 

some discs may not play.) 

 

It’s extremely easy to program the tracks 

you want to hear in any order. You can 

clear the programme at any time with a 

single touch. 

 

An RS-232C interface is provided so this 

player can be controlled via computer in a 

custom installation. 

 

You’ll have smooth recording starts each 

time, because Synchronised Record Start 

puts the deck into the recording mode a 

few seconds before starting CD play. 

 

Get information about the CD currently 

playing right on the CD player’s display. 

The 3- mode CD Text display shows the 

CD’s title, the artist’s name and the title of 

the track. 

 

Use Random Play to mix selections from 

various discs or to hear old CDs in the new 

way 

 

. 

 

As benefits a high performance receiver, 

the RX-797 is designed to be suitable for 

usein custom installations. It has a Zone 2 

out so the audio/video signal can be 

output in a second room. In addition, You 

can enjoy audio in 3 different zones in 

your home by using main zone speaker 

output, Speaker B output, and zone 2 

audio/video output. There is also a Zone 2 

power switch, an 2-in/1-out remote 

terminals and trigger out. 

 

Extremely high quality wiring, from the 

well-known Monster Cable Products, is 

used internally in each speaker to connect 

the woofer and crossover network. 

 

The proven capabilities and durability of 

this dome tweeter made it the ideal choice 

for these speakers. It can reproduce 

frequencies up to 35kHz and is powerful. 

The diffuser over the tweeter helps 

improve frequency response and 

directionality. 

 

The EF Series speakers use a Polymer-

injected Mica Diaphragm (PMD) cone 

woofer.  This diaphragm is composed of 

30% high quality white Indian Pearl Mica, 

chosen for the contribution it makes to 

sound quality.  Kapton bobbins increase S/

N ratio.  The cone is extremely light tough 

and durable, with a varied thickness for 

excellent response. 

 

As one of the world’s leading piano 

manufacturers, Yamaha has a long history 

of wood-working expertise. The EF Series 

speaker cabinets feature the same 

luxurious and environmentally friendly 

finish as our fine grand pianos. 

CD 

Phono 

DVD 

DTV/CBL 

VCR 

MC/Tape 

VCR 

MD/Tape 

Zone 2 

Remote 

Subwoofer 

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