Onkyo CR-B8, D-B8 Datasheet

Quality Audio Playback with a Sense of Convenience and Versatility

Here’s an integrated audio system that will more than adequately handle the wide-ranging frequencies of your music, including CDs, MP3s
or radio signals. And if you’re already actively buying and storing MP3 files, teaming the CS-420 CD receiver system with the iPod through
the RI Dock (DS-A1)for the iPod is an attractive option for bringing superior audio fidelity to your MP3s. The CS-420 uses Onkyo’s time-tested
WRAT (Wide Range Amplifier Technology), Optimum Gain Volume Circuitry and discrete output stage circuitry to ensure that incoming audio
signals are output with a quality befitting that of larger systems. Also, the accompanying speakers incorporate Onkyo speaker developments
designed to deliver a sound with clarity and purpose. These speakers are further enhanced by a high-gloss piano finish that nicely complements
the elegant aluminum front panel of the CD receiver. Stylish, graceful with compelling sound quality—the CS-420 CD receiver system is a
welcome addition to any home.

CD RECEIVER SYSTEM

WRAT (Wide Range Amplifier Technology

)

Originally developed for our high-end A/V receivers, WRAT is a collection of
Onkyo’s proprietary technologies that achieves three fundamental goals in
the pursuit of superior audio:

1)Wider frequency response;

2)Reduced amplifier distortion at high volume;

3)Better control of current and electro/mechanical kick-back from speakers.
By incorporating WRAT into the CS-420 ensures that you’ll get audio playback
quality from your MP3s and CDs that just isn’t possible from poorly conceived
audio components.

Optimum Gain Volume Circuitry

Conventional volume attenuation methods must initially drop a signal close to
the noise floor at low volumes. Even though the signal is only tainted with a little
noise, the amount increases when the signal is amplified. Onkyo’s Optimum Gain
Volume Circuitry adjusts the gain so that less than half the amount of attenuation
is necessary. The signal never comes close to the noise floor, and thereby
eliminates the possibility of noise contamination that plagues conventional volume
attenuation methods.

Discrete Output Stage Circuitry

It is all too common for manufacturers of mini systems to employ just one circuit
at the output stage. With multiple transistors crammed onto this single circuit,
excess heat is generated and the audio signal is compromised. The CS-420
is different. It uses discrete amplifier technology similar to that found on our
high-end receivers. Keeping the transistors separate at the output stage enhances
cooling, so the CS-420’s longevity is extended and interference to the audio
signal is reduced.

iPod Playback through Onkyo’s RI (Remote Interactive)System Capability

With Onkyo’s RI system capabilities, you can add other Onkyo components to
the CS-420 and operate them through one single remote control. RI capability
also gives you the opportunity to integrate the iPod with your CD receiver system
through Onkyo’s RI Dock for the iPod (DS-A1). Simply connect the dock to
the CS-420, place your iPod in the dock and relish the fuller sound that just
can’t be experienced through headphones. RI capability also gives you remote
operability over your iPod for hands-off control over your digital music. The DS-A1
is compatible with most iPod models, and will also accommodate the latest
iPod releases.

2-Way, Bass Reflex Speakers Incorporating Onkyo’s Own
Speaker Developments

Designed to neatly complement the CD receiver in any room of the home,
the CS-420’s 2-way, bass reflex speakers are designed to playback music with
no interference and maximum efficiency. The Advanced Onkyo Microfiber
(

A-OMF)diaphragm woofer is made from a three-layer construction that absorbs
vibrations that can adversely affect the quality of the emitted sound. This thin
yet rigid diaphragm enables an extremely fast and accurate response—essential
for the reproduction of quality audio. Also, a V-Line Edge on the suspension
suppresses any extraneous vibrations that can cause the sound to deteriorate
significantly. Capping it off, an Aero Acoustic Drive (slit duct)has been included
to reproduce a sound that is both responsive and spacious it its delivery.

CS-420

CS-420

CD RECEIVER S

YSTEM

NPR No. 05N50 11/05 Printed in Japan

CR-B8 CD Receiver

Amplifier Features

• 24 watts per channel minimum into 4 ohms, 1 kHz, JEITA

• WRAT (Wide Range Amplifier Technology

)

• High-current, low-impedance drive

• Discrete output stage circuitry

• Optimum Gain Volume Control Circuitry

• 3 audio inputs and 2 outputs

• Tone control (Bass/Treble

)

• 2-Step Super Bass control

• Subwoofer pre out

CD Player Features

• Plays audio CDs, MP3 CDs, CD-Rs and CD-RWs*

• Optical digital output

• Single-bit D/A converter

• Memory playback (25-track programming

)

• 3 CD play modes (Normal/Random/Memory

)

• 4 MP3 play modes (Normal/Random/Memory/Group

)

• 2 Repeat modes (Track/All

)

*Discs that have not been properly finalized may only be partially playable or not playable at all.

Tuner & Other Features

• Compatible with RI Dock for the iPod

• 4-mode timer (Play or Rec/Once or Every

)

• Sleep timer

• 30 FM/AM random presets

• Automatic FM scan tuning

• Battery-free memory backup

• Aluminum front panel

• Headphone jack

• RI (Remote Interactive)remote control

D-B8 2-Way, Bass Reflex Loudspeakers

• 13 cm A-OMF diaphragm woofer

• 2.5 cm soft-dome tweeter

• Aero Acoustic Drive for powerful and natural sound

• V-Line Edge to minimize vibrations

• MDF cabinet with high-gloss piano finish

• Magnetically shielded

• 4 ohms impedance

• Max. input power: 70 W

• Frequency response: 50 Hz-35 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 Computer, Inc., registered in the U.S. and other countries.“WRAT” is a trademarks of Onkyo Corporation. All other trademarks and registered trademarks are the property of their respective holders.

AMPLIFIER SECTION

Power Output.................................................................................... 24 W/Ch

(

4 Ω, 1 kHz, JEITA

)

Dynamic Power................................................................................ 26 W

(

4 Ω

)

THD (Total Harmonic Distortion

)

.................................................. 0.4 % (Rated Power

)

Damping Factor ............................................................................... 25

(

Front, 8 Ω, 1 kHz

)

Input Sensitivity and Impedance

Line................................................................................................. 150 mV/50 kΩ

Output Level and Impedance

Rec Out........................................................................................... 150 mV/2.2 kΩ

Frequency Response....................................................................... 10 Hz

-

100 kHz/±3 dB (Line

)

Tone Control .....................................................................................

±

10 dB, 100 Hz(BASS

)

±

10 dB, 10 kHz(TREBLE

)

+

4.5 dB, 80 Hz(SUPER BASS 1

)

+

7.5 dB, 80 Hz(SUPER BASS 2

)

Signal-to-Noise Ratio ..................................................................... 100 dB

(

Line, IHF-A

)

Speaker Impedance ........................................................................ 4 Ω

-

16 Ω

TUNER SECTION

[FM]

Tuning Frequency Range................................................................ 87.5 MHz-108.0 MHz

Usable Sensitivity

Stereo/Mono................................................................................... 17.2 dBf, 2.0 µV (75 Ω, IHF)/11.2 dBf, 1.0 µV (75 Ω, IHF

)

Signal-to-Noise Ratio

Stereo/Mono................................................................................... 65 dB (IHF-A)/67 dB (IHF-A

)

Total Harmonic Distortion

Stereo/Mono................................................................................... 0.5 % (1 kHz)/0.4 % (1 kHz

)

Frequency Response....................................................................... 30 Hz

-

15 kHz/±1.5 dB

Stereo Separation............................................................................ 40 dB at 1 kHz

[AM]

Tuning Frequency Range................................................................ 522 kHz

-

1,611 kHz

Usable Sensitivity............................................................................ 30 µV

Signal-to-Noise Ratio ..................................................................... 40 dB

Total Harmonic Distortion.............................................................. 0.7 %

(

1 kHz

)

CD PLAYER SECTION

Frequency Response....................................................................... 10 Hz

-

20 kHz

Dynamic Range................................................................................ 92 dB

Total Harmonic Distortion.............................................................. 0.009 %

Wow and Flutter............................................................................... Below threshold of measurability

Audio Output/Impedance

Digital (Optical)............................................................................... - 22.5 dBm

Analog ............................................................................................ 1.3 V/2.2 kΩ

GENERAL

Power Supply ................................................................................... AC 220/120 V, 50/60 Hz

Power Consumption........................................................................ 68 W

Standby Power Consumption ........................................................ 0.3/0.2 W

Dimensions (W x H x D

)

................................................................. 155 x 241 x 354 mm

Weight................................................................................................ 4.6 kg

CR-B8

SPECIFICATIONS

D-B8

Speaker Type.................................................................................... 2

-

Way, Bass-Reflex

Drivers

Woofer............................................................................................ 13 cm A-OMF Diaphragm

Tweeter........................................................................................... 2.5 cm Soft-Dome

Frequency Response....................................................................... 50 Hz

-

35 kHz

Crossover Frequency ...................................................................... 6.5 kHz

Output Sound Pressure Level........................................................ 82 dB/W/m

Max. Input Power ............................................................................70 W

Nominal Impedance........................................................................ 4 Ω

Dimensions (W x H x D

)

................................................................. 150 x 241 x 263 mm

Weight................................................................................................ 3.6 kg

Onkyo Corporation

2-1 Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN Tel: [phone] Fax: [phone] http://www.onkyo.com/

Onkyo China Limited

Units 2102-2107, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung, N. T., HONG KONG, SAR of China Tel: [phone] Fax: [phone] http://www.ch.onkyo.com/

Onkyo U.S.A. Corporation 18 Park Way, Upper Saddle River, N.J. 07458, U.S.A. Tel:

+

1-201-785-2600 Fax: [phone] http://www.onkyousa.com/

Onkyo Europe Electronics GmbH

Liegnitzerstrasse 6, 82194 Grobenzell, GERMANY Tel: [phone] Fax: [phone] http://www.eu.onkyo.com/