Onkyo CS-255 User Manual
2013 NEW PRODUCT RELEASE
CS-255
CD Hi-Fi Mini System
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While there is always a place for all-in-one docking systems, you can’t beat a punchy amp and separate speakers for an authentic stereo
experience. The CS-255 CD Hi-Fi Mini System combines deeply satisfying audio quality—beyond what you would expect from such a
compact and affordable system—with playback support from a wide range of sources. Getting the tunes flowing is easy—just pop your
iPhone 5 into the charging dock and send music through the digital amp and out the weighty two-way bookshelf speakers, which each
boast a 10 cm woofer and 2 cm balanced-dome tweeter. The USB port connects older iPhone and iPod models, flash memory drives
loaded with MP3 files, as well as USB-compatible smartphones, with track selection supported via the system remote. Then there’s a
front-loading CD player, an FM tuner capable of storing 30 of your favorite stations, and a 3.5 mm analog input to connect other media
players. All that remains is for you to sit back, relax, and listen as your music comes alive.
CR-255 CD Receiver
Amplier/CD Player Features
• 15 W/Ch
(6 Ω, 1 kHz, 10% THD, 2 Channels Driven, IEC)
• Efcient Digital Amplier for Clear, Powerful Stereo
Sound
• Plays Audio CD, CD-R, CD-RW, and MP3-Encoded
CD*
• Front-Panel USB Port for Legacy iPod/iPhone,
Smartphones, and Flash Memory Devices
• Super Bass Function
• 3 Play Modes for CD (Normal/Random/Repeat)
• 2 Repeat Modes for CD (Disc/Track)
• Analog Audio Input for Media Player Connection
• Headphone Jack
• Tone Control (Bass/Treble)
*Discs should be properly nalized.
iPod/iPhone Charging Dock Features
• Charging Dock with Lightning Connector for
iPhone 5/iPod touch (5G)/iPod nano (7G)
• Direct-Digital Connection for Clearer Sound
• iPod/iPhone Control with Supplied Remote
Controller
• iPod/iPhone Auto Selector, Play Timer, and Sleep
Timer
USB Connection Features
• Recharges iPod/iPhone
• iPod/iPhone Control with Supplied Remote
Controller
• Compatible Models: iPhone, iPhone (3G, 3GS, 4, 4S),
iPod touch (1G, 2G, 3G, 4G), iPod classic (6G),
and iPod nano (2G, 3G, 4G, 5G, 6G)
• Plays MP3 Files Stored on Flash Memory Devices and
USB-Compatible Smartphones/Tablets
Other Features
• FM Tuning with 30 Presets
• RDS (PS/RT) (EU Only)
• Program Timer (Everyday)
• Sleep Timer
• Display Dimmer (Normal/Dim)
• Battery-Free Memory Backup
• Remote Control
D-T15 Two-Way Bass Reex Speakers
• 10 cm Cone Woofer
• 2.0 cm Balanced-Dome Tweeter
• Non-Parallel Sides to Prevent Internal Standing
Wave s
• Solid Construction, Fit, and Color-Matched Finish
• Magnetically Shielded to Prevent Interference
• Impedance: 6
• Max. Input Power: 30 W
• Frequency Response: 55 Hz–50 kHz
Ω
CS-255
CD Hi-Fi Mini System
Direct Digital Charging Dock for iPhone 5
Dock your iPhone 5, iPod touch (5G), or iPod nano (7G)
via the Lightning Connector and recharge the device while
you listen. The receiver automatically detects your device,
selects dock input, and allows you to use the system remote
to quickly navigate to your desired track. Audio signals are
transported in pure digital form—bypassing the docked
device’s analog conversion and gain circuits—for noticeably
clearer, deeper, and more realistic sound.
Connect, Charge, and Play via USB
Users of legacy iPhone and iPod models can link up in
moments via the front-panel charging USB por t, which also
enables direct-digital audio transfer on these devices. If your
smartphone or tablet features a mini-USB por t, you can
quickly access the MP3 les stored on the device as well. You
can also plug in a ash memory drive and use the system
remote to select an MP3 library—no hassle, and no fuss.
Clean and Efcient Digital Amplier
As well as being more energy-efcient than Class AB designs,
digital ampliers are capable of producing remarkably clean,
detailed sound. Onkyo’s low-noise circuit topology reduces
distortion across a wide frequency bandwidth, resolving new
layers of depth and detail in your favorite recordings.
Compact and Solid Two-Way Speakers
The CS-255 includes a pair of two-way bass-reex-type
speakers that incorporate a 10 cm woofer and a 2 cm
balanced-dome tweeter. The cabinets feature stylish rounded
edges and a front-to-rear taper that helps reduce internal
standing waves—an unwanted acoustic resonance that can
muddy the sound. Compact in size yet surprisingly robust,
these magnetically shielded speakers t comfortably and
sound great almost anywhere you choose to place them.
Super Bass Function
Sometimes the music calls for a little extra bass punch.
The two-mode Super Bass function on the CS-255 gives a
welcome boost to the low-frequency band, adding just the
right amount of heft to bass guitar and kick drum without
sounding distorted, harsh, or boomy.
Smooth Front-Loading CD Player
While there is no shortage of weird and wonderful
CD-loading designs out there, the novelty wears off after
yet another scratched disc. The traditional front-loading CD
player remains the simplest and safest way to enjoy your
disc-based media. The CS-255 incorporates a smooth frontloading mechanism, while track- or album-repeat modes—
plus a random playback option—offer greater exibility. And
it’ll even play your homemade mixes and MP3-encoded
compilation discs without any bother.
FM Tuner with 30-Station Preset
Browse up to 30 preset radio stations—complete with
station information in those areas supporting RDS
broadcasts—at the touch of a button. Once you’ve got your
favorites programmed in, you’ll never be short of something
to listen to.
SPECIFICATIONS
CD RECEIVER SECTION
Amplier Section
Power Output 15 W + 15 W (6 Ω, 1 kHz, 10% THD,
2 Channels Driven, IEC)
THD+N (Total Harmonic Distortion + Noise)
0.5% (1 kHz, 1 W)
Damping Factor 60 (1 kHz, 8 Ω)
Input Sensitivity and Impedance
1000 mV/47 kΩ (Line)
Frequency Response 50 Hz–20 kHz/+0 dB, -3 dB
Tone Control ±10 dB, 100 Hz (Bass)
±10 dB, 10 kHz (Treble)
+4 dB, 80 Hz (Super Bass 1)
+8 dB, 80 Hz (Super Bass 2)
Signal-to-Noise Ratio 84 dB (Line, IHF-A)
Speaker Impedance 6 Ω–16
Tuner Section
Tuning Frequency Range
FM 87.5 MHz–108 MHz
FM Preset Memory 30 Stations
General
Power Supply AC 220–240 V~, 50/60 Hz
Power Consumption 30 W
No-Sound Power Consumption
9 W
Standby Power Consumption
0.4 W (iPod/iPhone not connected)
Dimensions (W x H x D) 215 x 100 x 270 mm
Weight 2.5 kg
SPEAKER SECTION
Speaker Type 2-Way, Bass-Reex
Drivers
Woofer 10 cm Cone
Tweeter 2.0 cm Balanced-Dome
Frequency Response 55 Hz–50 kHz
Crossover Frequency 4.5 kHz
Output Sound Pressure Level
82 dB/W/m
Max. Input Power 30 W
Nominal Impedance 6 Ω
General
Dimensions (W x H x D) 130 x 210 x 172 mm
Weight 1.6 kg
CARTON
Dimensions (W x H x D) 332 x 190 x 429 mm
Weight 3.2 kg
Supplied Accessories
• Indoor FM antenna • Speaker cable and cork spacers
• Instruction manual • Remote controller
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Due to a policy of continuous product improvement, Onkyo reserves the right to change specications and appearance without notice. iPhone, iPod, iPod classic, iPod nano, iPod shufe, and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. “Made
for iPod” and “Made for iPhone” mean that an electronic device has been designed to connect specically to iPod and iPhone respectively, and has been certied by the developer to meet Apple performance standards. Apple is not responsible for the operation of this device or its
compliance with safety and regulatory standards. Please note that the use of this device with iPod or iPhone may affect wireless performance. All other trademarks and registered trademarks are the proper ty of their respective holders.
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NPR No. 13N22 05/13
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