Denon DRA-685 AM/FM Stereo Receiver

Denon DRA-685 AM/FM Stereo Receiver

Denon DRA-685 AM/FM Stereo Receiver

B&H # DEDRA685 MFR # DRA685
Denon DRA-685 AM/FM Stereo Receiver


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Product Highlights

  • Signal Level Divided Construction (SLDC)
  • High-Quality Power Amplifier Section
  • Second Zone Remote Controller (RC-873)
  • Multi Source Function
  • Room-to-Room Remote Control
  • Sophisticated Tuning Circuit Design
  • Record Out Selector
  • Auto Preset Memory
  • Bass and Treble Tone Controls
  • Loudness Function
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  • 1Description

The Denon DRA-685 AM/FM Stereo Receiver is a professional-quality radio tuner ideal for any environment. With a 100W of power per channel, the DRA-685 can easily drive virtually any modern loudspeaker system with authority and clarity.

The AM/FM radio tuner offers 40 selectable preset stations and a programmable sleep function. The unit has front-panel controls and LCD displays. Finally, the DRA-685 allows you to select a video source, and then select an alternate audio input source, ideal for simulcasting, as well as watching TV sports programs while listening to radio commentary.

Signal Level Divided Construction (SLDC)
The circuit handling low-level and high-level signals has been divided into separate blocks to ensure that influences from these signals on each other are held to an absolute minimum This new chassis design in the DRA-685 is called the Signal Level Divided Construction (SLDC). Signals for output are cleaner than before, allowing them to be reproduced with even greater fidelity and clarity
Second Zone Remote Controller (RC-873)
In addition to the main remote, the DRA-685 is also supplied with another remote that is customized for the second zone multi-room functions. It is equipped with second zone source selection, recalling preset radio stations, adjusting the volume, and other functions that can be controlled from the second zone room
High-Quality Power Amplifier Section
100W + 100W (8 ohms, 20 Hz - 20 kHz, 0.05%)
Providing 100W per channel, into 8 ohms, from 20 Hz to 20 kHz, with no more than 0.05% total harmonic distortion, the DRA-685 provides separates class audio performance. Together, these components provide superb low impedance drive capability with tremendous dynamic reserve capacity. High speed, wideband discrete power transistors provide delicacy and impact, ideally suited to the needs of the highest quality analog and digital sources
Multi Source Function
The DRA-685's multi source function lets you enjoy two different programs in two different rooms. For example, listen to the CD player in the main room, while another family member listens to the tuner in another room in the home. Dedicated multi-room output jacks, with variable volume level adjustment via remote control, are for connection to powered second zone speakers or a second zone amplifier
Room-to-Room Remote Control
External remote control equipment, including IR re-transmitters and IR remote receivers, such as Denon's RC-616, 617S, 617W, and 618 devices, can be connected to the IR remote input and output terminals
Integral System (IS) Remote Controller (RC-872)
The DRA-685 is provided with a pre-learned remote control, that contains codes for other Denon components, along with codes for other products from other manufacturers, such as DVD, VCR, and TV
Easy Simulcast Copy
This feature not only permits reception and recording of FM/TV simulcast programs onto videotape, but it can also be used to combine, for example, the sound from a CD with the picture from a video disc
Record Out Selector
Lets you listen to one source, while recording another source. Ideal for making unattended tape copies
Video Terminals
Stereo video sources, such as hi-fi VCR, stereo TV, and DVD can all be easily connected to the DRA-685's VDP, VCR and Video Aux terminals
Video Select Function
Allows you to select a video source, and then select an alternate audio input source, ideal for simulcasting, as well as watching TV sports programs while listening to radio commentary
Auto Preset Memory
FM stations can be searched by the tuner, and automatically stored in the preset memory up to 40 stations, ideal for locales with many FM stations
Sophisticated Tuning Circuit Design
Thanks to the PLL circuit design, reception drift is a thing of the past. The DRA-685 also has a 4-pole varactor diode in its front end to guarantee accurate input of station frequencies
-Auto scanning of radio frequency bands
Fast up/down manual tuning
Manual step tuning
Last-channel-tuned memory
Other Useful Features
Loudness function
Pre-output and main-input jacks
Bass and treble tone controls
Tone defeat
Muting function via remote controller
Motor-driven volume control
A/B speaker switching
Last function memory
Switched AC outlets
In the Box
Denon DRA-685 AM/FM Stereo Receiver
  • Operating Instructions
  • Service Station List
  • Remote Control (RC-872)
  • Remote Control (RC-873)
  • 2 x AA Batteries
  • AAA Batteries
  • AM Loop Antenna
  • FM Indoor Antenna
  • 1 Year Warranty
  • Table of Contents
    • 1Description
    Output 100W + 100W (8 ohms, 20Hz - 20kHz, THD 0.05%)
    Tone Control Treble: ±10 dB at 10 kHz
    Bass: ±10 dB at 100 Hz
    FM Tuning frequency range: 87.5 - 107.9 MHz
    Usable sensitivity: 1.4 μV (14.2 dBf)
    S/N 50 dB sensitivity: Mono: 2.8 μV (20.2 dBf)
    (μV at 75 ohms) Stereo: 23 μV (38.5 dBf)
    Signal-to-noise ratio (A-weighting): Mono: 80 dB, Stereo: 75 dB
    Total harmonic distortion: Mono: 0.15%, Stereo: 0.3%
    Capture ratio: 1.5 dB
    AM suppression: 50 dB
    Image rejection: 70 dB
    Effective selectivity: 55 dB (±400 kHz)
    Frequency response: 30 Hz - 15 kHz, +0.2, -1.5 dB Stereo separation: 40 dB (1 kHz)
    AM Frequency Range Tuning frequency range: 520 - 1710 kHz
    Usable sensitivity: 18 μV
    Analog Line input - Pre-out
    Input sensitivity/input impedance: 200 mV / 47 kΩ/kohms
    Frequency response: 10 Hz ~ 50 kHz: ±1.5 dB
    S/N ratio: 100 dB (IHF-A weighted)
    Total harmonic distortion: 0.009% (-3 dB at rated output, 8 Ω/ohms) (1 kHz)
    Rated output: 1.2 V
    Phono input - Rec-out
    Input sensitivity/input impedance: 3.0 mV/47 kΩ /kohms
    RIAA deviation: ±0.5 dB (20 Hz ~ 20kHz)
    S/N ratio: 74 dB (IHF-A weighted, with 5 mV input)
    Total harmonic distortion: 0.03% (1 kHz, 3V)
    Rated output/Maximum output: 150 mV / 7 V
    Video section
    (standard video jacks)
    Input/output level and impedance: 1 V p-p, 75 Ω/ohms
    Frequency response: 5 Hz ~ 10 MHz +1, -3 dB
    Remote Control RC-872
    Batteries: R6P/AA Type (two batteries)
    External dimensions: 2.1 x 6.8 x 1.1" (54 x 172 x 27.2mm)
    Weight (including batteries): 6 oz (100 g)
    Batteries: R03/AAA Type (two batteries)
    External dimensions: 1.8 x 5 x 0.6" (47.5 x 127 x 18mm)
    Weight: 2.4 oz. (70 g)
    Power Requirements AC 120 V, 60 Hz
    Dimensions (WxHxD) 17.1 x 6.7 x 16.4" (434 x 171 x 416mm)
    Weight 22 lb (10kg)

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