Onkyo CS-725 User Manual

CS-725 CD Receiver System

TITANIUM

Much More Than a Sum of Parts—Exclusive, Customized and Smart

This compact audio system features a switching design for efficient audio playback.Based on the Onkyo systems that dominate in the
Japanese domestic market,the CS-725 is packed with proprietary technologies, customized and selected parts, and intelligent design
considerations. The CS-725 uses both Vector Linear (VL) Digital modulation circuitr y and Vector Linear Shaping Circuitry (VLSC) to
maintain the purity of audio signals.You’ll also find a weighty,customized power supply;a robust chassis supported by a steel top cover
and aluminum front/side panels;and quality gold-plated input and output terminals.The accompanying gloss-finished speakers sound as
good as they look,and serve to round out one of Onkyo’s finest compact audio systems to date.

Vector Linear (VL) Digital Modulation Circuitry for Accurate
Conversion

The CR-725 CD receiver’s switching amplifier design uses VL Digital modulation
circuitry for effective digital-to-analog conversion.To prevent spike noise from
introducing inversion-timing errors dur ing the conversion process,VL Digital
converts the analog audio signal with a high degree of accuracy. When an analog
input is received,the vector gener ator outputs a cur rent proportional to the
size of the analog input.This cur rent is sent to an integr ator,where it is char ged.
When the charge reaches a specified value, the trigger operates and inver ts the
output pulse. Spike noise is eliminated as negative and positive charges of the
waveform cancel each other out.

Heavy-Duty Power Supply to Support Highly Efficient
Amplification

With a focus on providing a highly efficient and stable power supply, the CR-725
CD receiver includes a heavy-duty, customized power transformer designed to
fit into the receiver’s limited space.The power supply is also equipped with a
high-quality capacitor (operating at 4700 µF) to store and regulate power for
stable, responsive digital amplification.

Thick, Low-Impedance Bus Plate to Support Current
Capability

The CR-725 CD receiver incorporates a thick, low-impedance copper bus plate
in the circuitry to ensure a flawless electrical ener gy path. Furthermore, as the
ground potential is capable of imparting noise into the audio signal, the CR-725
CD receiver is constructed so that the ground points of each circuit do not
affect one another.The bus plate has proven to be effective in contributing to
accurate audio reproduction.

Vector Linear Shaping Circuitry (VLSC) and Optimum Gain
Volume Circuitry to Maintain Clean Audio Signals

The CR-725 CD receiver uses VLSC to produce a noise-free analog signal from
digital music sources.This technology is effective in removing pulse noise during
the digital-to-analog conversion process, thereby maintaining the purity of the

signal. Employed in Onkyo’s A/V receivers and playback components,VLSC
ensures you get the best possible audio from CDs and compressed formats
such as MP3.

Optimum Gain Volume Circuitry is also used to prevent noise from adversely
affecting the audio signal.This circuitry makes adjustments to the gain, thereby
reducing attenuation by 50%,so the signal never comes close to the noise floor.
By contrast, in conventional volume attenuation methods (where no gain
adjustment is made), the signal drops close to the noise floor at low volumes.
This taints the signal with noise that is noticeable when the signal is amplified.

Gloss-Finished Speakers with Select Performance-Enhancing
Features

The accompanying D-N10BX two-way, bass-reflex speakers are housed in gloss­finished MDF cabinets that will impress in any environment.Musically,they
incorporate a range of Onkyo speaker developments designed to match the
CR-725 CD receiver. For example, the woofer cones follow Onkyo’s A-OMF
Monocoque design and incorporate a diaphragm fiber that supports the
speakers’ piston motion range. Also, to deliver high-frequency sounds with
finesse, the speakers include a ring-drive tweeter that contributes to the
restraint of low-frequency interference from inside the speaker. Finally, a duct—
called the Aero Acoustic Drive—is included to mitigate interference between
high and low frequencies.

The Option of iPod Playback Through RI (Remote Interactive)
Dock for the iPod*

The RI system enables Onkyo owners to integrate compatible
components for operation via a single remote control. It also enables
you to integrate the iPod with the CS-725 through Onkyo’s optional
RI Dock for the iPod.Simply connect the dock to the CD receiver,
then place your iPod in the dock for control with the CR-725 CD
receiver’s remote control.The RI Dock has been hailed by
independent experts as offer ing a “heftier and more detailed”sound than can
be experienced with an RCA stereo cable.

*Sold separately

CS-725 CD Receiver System

CR-725 CD Receiver

Amplifier Features

• 50 W/Ch,4 Ω, 1 kHz, 2 Channels Driven, IEC

• Vector Linear (VL) Digital Technology

• High Instantaneous Current Capability (HICC)

• Customized Heavy-Duty Power Transformer

• Customized Capacitor (4700 µF) for Power Supply

• Discrete Output Stage Circuitry

• Optimum Gain Volume Circuitry

• Direct Mode

• 4 Audio Inputs (1 Front Panel) and 2 Outputs

• Subwoofer Pre Out

CD Player Features

• Plays Audio CDs, MP3s (via CD-R, CD-RW)*

• Vector Linear Shaping Circuitry (VLSC)

®

• Wolfson

• 4 Play Modes (Normal/Memory/Random/1 Folder)

• Navigation Mode for Selecting and Playing MP3 Files

• MP3 Settings for Personal Preferences

• Memory Playback (25-Track Programming)

• 2 Repeat Modes (Track/Full) for CDs and MP3

*Discs that have not been properly finalized may be only partially

Tuner & Other Features

• Preset Function with 40 FM Selections

• Manual and Automatic FM Tuning

• Preset Naming (Up to 8 Characters)

• FM Auto Preset

• 4-Mode Timer (Play or Rec/Once or Every)

• Sleep Timer

• Tone Control (Bass/Treble)

• Super Bass Function

• Battery-Free Memory Back-Up

• FM Indoor Antenna Supplied

• Headphone Jack

• Aluminum Front and Side Panels and Volume Knob

• Robust Steel Top Cover (1.2 mm) to Suppress

• Gold-Plated Banana Plug-Compatible Transparent

• Gold-Plated Input and Output Terminals

• Compatible with RI (Remote Interactive) Dock for

• RI (Remote Interactive) Remote Control

Stereo DAC

Burned to CD-R,CD-RW

Folders

playable or not playable at all.

Vibrations

Speaker Posts

the iPod

SPECIFICATIONS

■ RECEIVER SECTION

AMPLIFIER SECTION

Power Output 50 W + 50 W (4 Ω, 1 kHz,

Dynamic Power 120 W + 120 W (4 Ω)
Total Harmonic Distortion 0.5% (Rated power),

Damping Factor 50 (Front, 1 kHz, 8 Ω)
Input Sensitivity and Impedance 150 mV/50 kΩ (Line)
Output Level and Impedance 150 mV/2.2 kΩ (Rec Out)
Frequency Response 10 Hz–60 kHz/+1 dB, -3 dB (Line)
Tone Control ±6 dB, 80 Hz (Bass)

Signal-to-Noise Ratio 100 dB (Line, IHF-A)
Speaker Impedance 4 Ω–16 Ω

TUNER SECTION

Tuning Frequency Range

FM 87.5 MHz–108 MHz

CD PLAYER

Frequency Response 4 Hz–20 kHz
Audio Dynamic Range 96 dB
Total Harmonic Distortion 0.005%
Wow and Flutter Below threshold of measurability
Audio Output/Impedance 1.3 V/1 kΩ

GENERAL

Power Supply AC 220–230 V∼, 50/60 Hz
Power Consumption 42 W
Standby Power Consumption 0.38 W
Dimensions (W x H x D) 205 x 116 x 338 mm
Weight 5.1 kg

SECTION

2 channels driven, IEC)

0.08% (1 KHz, 1 W)

±8 dB, 10 kHz (Treble)
+8 dB, 80 Hz (Super bass)

■ SPEAKER SECTION

Speaker Type 2-way, bass reflex
Drivers

Woofer 13 cm A-OMF Monocoque
Tweeter 3 cm ring-drive

Frequency Response 45 Hz–100 kHz
Crossover Frequency 6 kHz
Output Sound Pressure Level 84 dB/W/m
Max. Input Power 70 W
Nominal Impedance 4 Ω

GENERAL

Dimensions (W x H x D) 167 x 298 x 247 mm
Weight 4.2 kg

diaphragm

D-N10BX(B)

2-Way Bass Reflex Speakers

• 13 cm A-OMF Monocoque Diaphragm Woofer

• 3 cm Ring-Drive Tweeter

• Aero Acoustic Drive for Powerful and Natural Sound

• V-Line Edge to Counteract Unwanted Diaphragm
Vibration

• Banana Plug-Compatible Speaker Posts

• Magnetically Shielded

• MDF Cabinet with Gloss Finish

• Impedance:4 Ω

• Max.Input Power: 70 W

• Frequency Response:45 Hz–100 kHz

Due to a policy of continuous product improvement, Onkyo reserves the right to change specifications and appearance without notice. iPod is a trademark of Apple Inc., registered in the U.S. and other countries. VL Digital and VLSC are trademarks of Onkyo Corporation. All other
trademarks and registered trademarks are the property of their respective holders.

Onkyo Corporation 2-1 Nisshin-cho, Neyagawa-shi, Osaka 572-8540, JAPAN Tel: [phone] Fax: [phone] http://www.onkyo.com/
Onkyo China Limited
Onkyo U.S.A. Corporation 18 Park Way, Upper Saddle River, N.J. 07458, U.S.A. Tel: [phone] Fax: [phone] http://www.onkyousa.com/
Onkyo Europe Electronics GmbH Liegnitzerstrasse 6, 82194 Grobenzell, GERMANY Tel: [phone] Fax: [phone] http://www.eu.onkyo.com/

Unit 1 & 12, 9/F, Ever Gain Plaza Tower 1, 88, Container Port Road, Kwai Chung, N.T., Hong Kong, CHINA Tel: [phone] Fax: [phone] http://www.ch.onkyo.com/

NPR No. 08N30 04/08