Denon 1708 - AVR AV Receiver User Manual download pdf (Page 8)

8 Denon Technology

Progressive Scan PAL and NTSC: Denon's DVD players all offer

high-grade IP conversion capabilities. In addition, Progressive conversion

is possible for both PAL and NTSC signals. Besides the existing Pure Progressive

circuit of Silicon Image, Inc., development work has been continuing in

a circuit made by Faroudja, Inc., to ensure that Denon products are always

equipped with the latest circuitry and devices. Both circuits offer superior

moving picture detection capabilities that allow Denon's DVD players to play

discs containing video material recorded in both Video mode and Film mode

on the same disc. Faroudja also supplies the DCDi circuit that enhances

Progressive conversion accuracy.

Dual Discrete Video Circuit (D.D.V.C.): Not only does Denon separate

audio and video circuitry in its DVD players to maintain high sound and

picture quality, the interlaced, Progressive, and SCART video output

circuits are also arranged independent of each other. Isolated circuits and

boards, the use of a box chassis, and even the encoder chips (in high-end

models) are all exclusively dedicated to individual tasks to minimise mutual

interference and ensure optimum picture quality.

Multi-layer construction: Various methods of absorbing vibration have

been adopted in the design of Denon's DVD players to further improve accuracy

in reading signals from the disc. All players feature a multi-layer construction in

their chassis and top cover, while high-end models incorporate the SVH loader

mechanism to maximise protection of the mechanism from vibration.

Denon Pixel Image Correction: Denon Pixel Image Correction, original

enhancement technology from Denon, corrects images in greater detail.

Denon's newly-developed contour correction circuit uses a new algorithm that

samples a total of 9 pixels of video data to consider the impact of surround-

ing pixels on important pixels in the enhancement process. Since pixels in

the image are detected and processed in vertical, horizontal, and diagonal

directions, this technology generates more natural contours. The use of

separate algorithms for brightness and color signals, the suppression of

ringing that easily occurs during enhancement and other effective processes

best suited to the picture also contribute to a more naturally enhanced image

with negligible degradation.

Digital Bass Management: When playing multi-channel Dolby Digital,

dts, LPCM or DVD-Audio/MLP sources, it is possible to preset speaker con-

ﬁ gurations and delay times. The crossover point is ﬁ xed at 80 Hz with 12 dB

high and 24 dB low pass ﬁ lter slopes.

UHC (Ultra High Current) Single Push-Pull Circuit: For the past ten

years, the dream of power amps has been to support low-impedance

speakers. Unfortunately, however, the fulﬁ lment of this dream has always been

a difﬁ cult proposition, and Denon eventually felt the need to rethink its approach.

The result has been to combine high output power with detailed musical

expression, a high-grade solution that is the ﬁ rst of its kind.

The challenge facing Denon has been to amplify with dynamic strength and

absolute clarity the creative energy transmitted by the artist and to keep apace

with the ever-changing musical signal levels. A hefty power supply unit with

ample reserves and a power amp that is capable of supplying pure, dynamic

signals to the speakers so that the music is heard with absolute transparency are

the primary requirements. Also required are transient response characteristics

that amplify even low-level signals with impeccable precision. No matter how

superior the dynamic range or the frequency characteristics may be, these

fea tures are meaningless if the amp cannot instantly follow the sudden rises and

falls in sound. Denon's simple and straight circuit design makes all possible.

Leakage Cancelling (LC) mounted twin transformers, for wide

dynamic range and low noise: By employing a large magnetic circuit with

low magnetic ﬂ ux density, the power transformer achieves superior response

characteristics capable of accommodating musical signals with a broad

dynamic range even in areas of magnetic saturation. The LC mount, which

serves to eliminate mutual interference caused by magnetic ﬁ elds and other

factors, signiﬁ cantly reduces leakage ﬂ ux which is a source of noise inside the

amp. The result is a powerful speaker drive that ensures both remarkably

transparent speaker output and low noise.

Multizone /Multi source: Multi Zone output function and a select function let

you output different sources to multiple zones. Sources can be selected for

output to the additional zones, in addition to the main room. With models that

have variable pre-amp outputs along with a composite video/S-Video feed,

video signals can be output to an additional zone as well. (The number of

additional zones depends on the product)

Power amplifier assign function (Assignable

surround back amplifier):

Power Amplifier Assign function lets you assign

the 2 Surround Back (SB L/R) amplifier channels

to drive the Zone 2 (or Zone 3) speakers. Or with

this function, front speakers can be bi-wired to

improve playback quality in the front for enhanced

listening enjoyment. (The capability of this function

depends on the product)

D.D.L. (Denon Double Layer) cone: The newly-

developed D.D.L. (Denon Double Layer) cone has

been used for the woofer diaphragm (S-81DAB/

SC-F102/103, SC-M53/73, SC-CX101/303). This

dual-layer diaphragm whose structure is the result

of meticulous simulations is both highly rigid and

light-weight and achieves a precision piston motion

across the entire sonic spectrum. The ingenious

structural design ensures that sympathetic vibration from the edge do not

adversely affect the audio charac teristics but deliver the best possible quality

in sound. Improvements in top-bottom symmetry in magnetic flux distri-

bution and other areas, together with the magnetic circuit of advanced design,

bring out a deeply impressive strength of expression.

Acoustic optimiser: Optimum acoustic

characteristics are achieved by adjusting the

sound pressure balance in front of and behind

the diaphragm of the headphones.

main room

zone 2

zone 3

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Denon 1708 - AVR AV Receiver User Manual Page 8

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