Sony CDX-GT81UW User Manual

Signal-to-noise ratio: 120 dB
Frequency response: 10 – 20,000 Hz
Wow and flutter: Below measurable limit

Tuning range: 87.5 – 107.9 MHz
Antenna (aerial) terminal: 

External antenna (aerial) connector

Intermediate frequency: 10.7 MHz/450 kHz
Usable sensitivity: 9 dBf
Selectivity: 75 dB at 400 kHz
Signal-to-noise ratio: 67 dB (stereo), 69 dB (mono)
Harmonic distortion at 1 kHz: 0.5 % (stereo),

0.3 % (mono)

Separation: 35 dB at 1 kHz
Frequency response: 30 – 15,000 Hz

Tuning range: 530 – 1,710 kHz
Antenna (aerial) terminal: 

External antenna (aerial) connector

Intermediate frequency: 10.7 MHz/450 kHz
Sensitivity: 30 µV

Interface: USB (Full-speed)
Maximum current: 500mA

Outputs: Speaker outputs (sure seal connectors)
Speaker impedance: 4 – 8 ohms
Maximum power output: 52 W 

× 4 (at 4 ohms)

Outputs: 

Audio outputs terminal (front/rear)
Subwoofer output terminal (mono)
Power antenna (aerial) relay control terminal
Power amplifier control terminal

Inputs: 

Telephone ATT control terminal
Illumination control terminal
BUS control input terminal
BUS audio input terminal
Remote controller input terminal

Antenna (aerial) input terminal
AUX input jack (stereo mini jack)

Tone controls: 

Low: ±10 dB at 60 Hz (XPLOD)
Mid: ±10 dB at 1 kHz (XPLOD)
High: ±10 dB at 10 kHz (XPLOD)

Power requirements: 12 V DC car battery 

(negative ground (earth))

Dimensions: Approx. 178 

× 50 × 190 mm 

(7

1

/

8

 

× 2 × 7

1

/

2

 in) (w/h/d)

Mounting dimensions: Approx. 182 

× 53 × 163 mm 

(7

1

/

4

 

× 2

1

/

8

 

× 6

1

/

2

 in) (w/h/d)

Mass: Approx. 1.6 kg (3 lb 9 oz)
Supplied accessories: 

Card remote commander: RM-X152
USB cap
Parts for installation and connections (1 set)

Rotary commander: RM-X4S
BUS cable (supplied with an RCA pin cord): 
RC-61 (1 m), RC-62 (2 m)
CD changer (10 discs): CDX-757MX
CD changer (6 discs): CDX-T69
Source selector: XA-C40
AUX-IN selector: XA-300
Interface adaptor for iPod: XA-110IP

Your dealer may not handle some of the above listed 
accessories. Please ask the dealer for detailed 
information.

POWER OUTPUT AND TOTAL HARMONIC 
DISTORTION
23.2 watts per channel minimum continuous 
average power into 4 ohms, 4 channels driven 
from 20 Hz to 20 kHz with no more than 5% total 
harmonic distortion.

CEA2006 Standard
Power Output: 17 Watts RMS 

× 4 at 

4 Ohms < 1% THD+N 
SN Ratio: 82 dBA 
(reference: 1 Watt into 4 Ohms)

US and foreign patents licensed from Dolby 
Laboratories.

MPEG Layer-3 audio coding technology and 
patents licensed from Fraunhofer IIS and Thomson.

•  Halogenated flame retardants are not used in the 
  certain printed wiring boards.
•  Halogenated flame retardants are not used in 
 cabinets.
•  Cushions made from paper.
•  VOC (Volatile Organic Compound)-free vegetable 
  oil based ink is used for printing the carton.