Specifications

FM tuner section

Frequency range:

200 kHz space: 87.9 MHz — 107.9 MHz

50 kHz space: 87.5 MHz — 108.0 MHz

Usable sensitivity (S/N= 26 dB):

11.2dBf (1 μV/75 Ω)

Quieting sensitivity (DIN S/N = 46 dB):

19.2dBf (2.5 μV/75 Ω)

Frequency response (±3 dB): 30 Hz — 15 kHz

Signal-to-Noise ratio (MONO): 63 dB

Stereo separation (1 kHz): 40 dB

AM tuner section

Frequency range:

10 kHz space: 530 kHz — 1,700 kHz

9 kHz space: 531 kHz — 1,611 kHz

Usable sensitivity (S/N= 20 dB):

AM: 31 dBμ (36 μV)

CD player section

Laser diode: GaAIAs

Digital filter (D/A): 8 Times Over Sampling

D/A converter: 24 Bit

Spindle speed: 500 rpm — 200 rpm (CLV)

Wow & Flutter: Below Measurable Limit

Frequency response (±1 dB): 20 Hz — 20 kHz

Total harmonic distortion (1 kHz): 0.01 %

Signal-to-Noise ratio (1 kHz): 105 dB

Dynamic range: 93 dB

MP3 decode: Compliant with MPEG-1/2 Audio Layer-3

WMA decode: Compliant with Windows Media Audio

USB interface

USB standard: USB1.1/ 2.0 (Full speed)

Maximum supply current: 500 mA

File system: FAT16/ 32

MP3 decode: Compliant with MPEG-1/2 Audio Layer-3

WMA decode: Compliant with Windows Media Audio

SD card section (KDC-U4549SD only) Compatible physical format: Version 2.00 Maximum memory capacity: 32 GB

File System: FAT 16/ 32

MP3 decode: Compliant with MPEG-1/2 Audio Layer-3

WMA decode: Compliant with Windows Media Audio

Bluetooth section (KDC-U549BT only) Technology: Bluetooth Ver. 2.0 Certified Frequency: 2.402 – 2.480 GHz

Output Power: +4 dBm (MAX), 0 dBm (AVE) Power Class 2

Maximum Communication range:

Line of sight approx. 10m (32.8 ft)

Profile:

HFP (Hands Free Profile),

SPP (Serial Port Profile),

HSP (Headset Profile),

OPP (Object Push Profile),

PBAP (Phonebook Access Profile),

SYNC (Synchronization Profile)

Audio section

Maximum output power: 50 W × 4

Full bandwidth power (at less than 1 % THD): 22 W × 4

Speaker impedance: 4 Ω — 8 Ω Tone action:

Bass: 100 Hz ±8 dB

Middle: 1 kHz ±8 dB

Treble: 12.5 kHz ±8 dB

Preout level / load (CD): 2,500 mV/ 10 kΩ

Preout impedance: ≤ 600 Ω

Auxiliary input section

Frequency response (±3 dB): 20 Hz — 20 kHz

Input maximum voltage: 1,200 mV

Input impedance: 10 kΩ

General Operating voltage: KDC-U549BT only:

(10.5 V — 16 V allowable): 14.4 V KDC-U4549SD/KDC-U4549 only:

(11 V — 16 V allowable): 14.4 V Maximum current consumption: 10 A Installation size (W × H × D):

182 mm × 53 mm × 160 mm Weight: 1.3 kg

Subject to change without notice.

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