Denon AVR-686 User Manual

A/V Receiver

AVR-686

TENTATIVE

DTS-ES Discrete 6.1 and Dolby Digital EX with Power Amps for 7 Channels

■ High-Quality Surround Sound Reproduction

• High Resolution 32bit Floating Point DSP

• 96 kHz Processing Circuit

• 3 Sets of Component Video Inputs

• 3 Sets of S-Video Switching

■ Auto Setup with Microphone

The AVR-686 is equipped with an Auto Setup function, to
achieve the most ideal sound field for your room. With the
microphone placed at your listening position, the powerful
32bit floating point DSP automatically and accurately
analyses, adjusts and sets the speaker configurations of
your system.

■ Fully Discrete, Equal Power 7 Amplifier Channels, 75 Watts Each

Front 75 W + 75 W (8 ohms, 20 Hz - 20 kHz, 0.08 % THD)
Center 75 W (8 ohms, 20 Hz - 20 kHz, 0.08 % THD)
Surround 75 W + 75 W (8 ohms, 20 Hz - 20 kHz, 0.08 % THD)
Surround Back 75 W + 75 W (8 ohms, 20 Hz - 20 kHz, 0.08 % THD)

For optimum Dolby Digital and DTS reproduction, the AVR-686 features high quality, wide­band audio amplification, providing 75 watts power output for each of the 7 main
channels. A large capacity power supply includes a high current power transformer
along with discrete power output devices on all 7 amplifier channels for highest dynam­ic range and superb reproduction clarity.

■ DENON's Basic Design for High-Quality Sound Reproduction

• Power Transformer for High Power Driven

The chassis that supports the large transformer has
been designed to absorb vibration, and the transformer is housed inside a highly rigid
frame to secure it more solidly to the chassis. In addition, a cushioning material has
been placed around the core of the transformer to minimize interference on the signal
and enable more faithful reproduction of the original sound. The AVR-686 inherits these
low-noise design from higher-end models not to mention the use of short ring.

• Twin Drive Rectifier

DENON's Twin Drive Rectifier design uses two rectifying
diodes in parallel to bring out the maximum potential of the
large transformer. Since the rectifiers recharge the large
block capacitors at low impedance, they are able to
supply ample current to reproduce deep basses as well as
sudden bursts of sound from percussion or other musical
instruments.

• Large Aluminum Extruded Heatsink

DENON uses large heatsink made of extruded aluminum.
They have been placed in a design that ensures mostly
uniform temperatures throughout the heatsink so that the
output transistors for all channels can be driven under uni­form conditions. This in turn ensures that all channels
respond with equal performance to the demands of the
audio signals.

■ Wide-Range Play Capability for DVD-Audio and Super Audio CD

The power amp circuits of the AVR-686 have been meticulously designed to reproduce
the exceptionally high sound quality with wide frequency response from 10 Hz to 100 kHz.

■ Dual Channel Surround Back Power Amp for 7.1 Surround

The AVR-686 is equipped with a total of 7 power amps including 2 for the Surround
Back channel speaker to give you more clearly defined sound localization at the rear
for 6.1-channel surround sources such as DTS-ES Discrete 6.1, DTS-ES Matrix 6.1,
Dolby Digital EX, and DTS-ES NEO:6.

■

Assignable surround back (L/R) amplifiers for front (L/R) channel bi-amping,

or for Multi-zone playback

Amplifiers initially reserved for Surround back (L/R) channels can be assigned to bi­wire Front (L/R) channels to improve playback quality in the front for enhanced listen­ing enjoyment. Or the amplifiers can be assigned to Zone 2 speakers (with multi­source), in addition to PREOUT for Zone 2.

■ Cinema Equalizer

The sound from movie sources recorded in Dolby Digital, DTS or other formats empha­sizes high-frequency range due to a theater’s front speakers being placed behind the
movie screen. If this sound is reproduced in the home theater without correction, the
high-frequency range is too strong. The AVR-686 features a Cinema Equalizer to
correct these high-frequency components so that the sound is clearer and easier to
listen to.

(For Dolby Digital, Dolby Pro Logic II, Dolby Digital EX and DTS surround modes)

■ Personal Memory Plus, for Easy Operation

The AVR-686 includes the Personal Memory Plus function that automatically remem­bers the surround mode you last used for each program source, so that you do not
need to select the mode again for that program.

■ Acclaimed Customization Feature

As with all of DENON’s high-grade A/V receiver, the AVR-686 lets you adjust delay
times and other parameters so that you can customize the performance of the AVR­686 to suit your own home theater and enhance operating ease. The adjustments
are easy to make via a dialog format on the fluorescent display on the front panel.
These customized features are then stored, for each source input and surround
mode, in Personal Memory Plus so constant readjustments are not required.

AVR-686

■ Multi-Function Preset Memory Remote Controller with Glo-keys

■ DENON's Latest Surround Technology Faithfully Recreates the

Surround Sound Produced at the Dubbing Stage.

• DTS 96/24 Decoding for DVD-Video

• DTS-ES Discrete 6.1 and Matrix 6.1

• DTS NEO:6

• Dolby Digital EX

• Dolby Pro Logic IIx

■ 5 Channel/ 7 Channel Stereo Mode

DENON's popular 7 Channel Stereo mode transforms your favorite 2-channel sources
such as CD, tape, stereo radio and stereo video sources into exciting surround
sound, free of delay effects and unnatural artifacts, from all 7 speakers. This 7
Channel Stereo mode was originally developed by DENON to enhance music lovers'
enjoyment with home theater ambience.

■ DENON DSP Surround Modes Add Listening Excitement

Put yourself in the middle of your favorite concert hall and music environments with
DENON's DSP acoustic environment simulation modes. These DSP modes add spa­cious surround sound enhancements to your favorite music and video sources, and
include these distinctly different sounding effects:

1. 5 / 7 Channel Stereo 5. Video Game

2. Virtual Surround 6. Matrix

3. Rock Arena 7. Mono Movie

4. Jazz Club

Input/Output Terminals For Every A/V System
Audio Inputs

8 Analog Inputs

CD, (TUNER), DVD/VDP, TV/DBS, AUX, VCR, CDR/TAPE, V.AUX(FRONT)

6 Analog EXT. Input

FRONT L/R, CENTER, SURROUND L/R, SUBWOOFER

4 Digital Input

OPTICAL X 2
COAXIAL X 2

Audio Outputs

1 Analog PRE OUT Terminals

SUBWOOFER

2 Analog REC OUT Terminals

VCR, CDR/TAPE

Video Inputs

4 Composite Inputs

DVD/VDP, TV/DBS, VCR, V.AUX(FRONT)

3 S-Video Inputs

DVD/VDP, TV/DBS, VCR

3 Component Inputs

DVD/VDP, TV/DBS, VCR

Video Outputs

2 Composite Outputs

VCR, MONITOR

2 S-Video Outputs

VCR, MONITOR

1 Component Output

MONITOR

■ Adjustable Cross-Over Switching

The AVR-686 supports subwoofer cross-over switching with a choice of 8 cross-over
frequencies: 40/60/80/100/120/150/200/250Hz. This lets you more accurately
match the performance characteristics of the subwoofer to the main speaker system.

■ Audio Delay Function (0 - 200 msec.)

Audio delay function corrects slight lags between sound and picture that can occur
when a video signal is processed, such as in a Progressive Scan DVD player or out­board video processor.

■ Component video circuits which maintain flat response up to 100MHz,
ensuring sharp image quality

■ Video Up/Down conversion function

(Composite <-> S-Video, Composite -> S-Video/Component)

Other features

■

Night Mode for not disturbing others

■ Front Panel Inputs

■ Front A/B Speaker Terminals

■ High-grade Speaker Terminals (All ch)

■ Remote In/Out Ports

■ Frequency Synthesis Tuning

• 56-Station AM/FM Random Preset Memory Tuning

• Auto Preset Memory

Specifications
Power Amplifier Section

Rated output *THD figures are power amp stage values.
Front 75 W + 75 W (8 ohms, 20 Hz - 20 kHz, 0.08 % THD)

Center 75 W (8 ohms, 20 Hz - 20 kHz, 0.08 % THD)

Surround 75 W + 75 W (8 ohms, 20 Hz - 20 kHz, 0.08 % THD)

Surround Back

Preamplifier Section

Input sensitivity/Impedance CD, DVD/VDP, TV/DBS, VCR, CDR/TAPE, AUX
V.AUX(FRONT) 200 mV/47 kohms
Output level/Load impedance SUBWOOFER 1.2 V/10 kohms

Frequency response 10 Hz - 100 kHz (+1, -3 dB) (Tone Defeat On)
Signal-to-noise ratio 98 dB (IHF-A weighted) (Tone Defeat On)
Tone control Treble: ±12 dB at 10 kHz

FM Section

Tuning frequency range 87.5 - 107.9 MHz
Usable sensitivity 1.0 µV (11.2 dBf)

AM Section

Tuning frequency range 520 - 1710 kHz
Usable sensitivity 18 µV

General

Power supply AC 120 V, 60 Hz
Power consumption 4.5 A
Dimensions 17-3/32” (W) x 5-25/32” (H) x 16-9/64”(D)

Weight 11.3 kg, 24 lbs 15 oz

110 W + 110 W (6 ohms, 1 kHz, 0.7 % THD)

110 W (6 ohms, 1 kHz, 0.7 % THD)

110 W + 110 W (6 ohms, 1 kHz, 0.7 % THD)

75 W + 75 W (8 ohms, 20 Hz - 20 kHz, 0.08 % THD)
110 W + 110 W (6 ohms, 1 kHz, 0.7 % THD)

CDR/TAPE, VCR 200 mV/47 kohms

Bass: ±12 dB at 100 Hz

434 (W) x 147 (H) x 417 (D) mm

*Design and specifications are subject to change without notice.
*”Dolby”, “Dolby Digital”, “Pro Logic II”, “Dolby Digital EX” and the double-D device are

registered trademarks of Dolby Laboratories Licensing Corporation.

*DTS is registered trademarks of DTS Technology.

Denon Electronics (USA), LLC.

19C Chapin Road, Suite 205 Pine Brook, N.J. 07058-9385 USA
TEL: [phone] www.usa.denon.com

Denon Canada Inc.

505 Apple Creek Blvd, Unit 5, Markham, Ontario, Canada L3R 5B1
TEL: [phone] www.denon.ca

Denon Brand Company

Kayabacho Tower 14F 1-21-2 Shinkawa, Chuo-ku, Tokyo 104-0033, Japan
www.denon.com