Specifications - Yamaha GX-900 Service Manual

GX-900

SPECIFICATIONS

AMPLIFIER SECTION
Minimum RMS Output Power per Channel
1kHz, 0.9% THD, 6Ω ...................................... 80W + 80W
1kHz, 10% THD, 6Ω ................................... 100W + 100W
Input Sensitivity/Impedance
AUX ............................................................... 200mV/47kΩ
Spectrum Analyzed Band ............................................. 5 band
(100Hz, 350Hz, 1kHz, 3.5kHz, 10kHz)
TUNER SECTION
FM Tuning Range .................................... 87.50 to 108.00MHz
AM Tuning Range .......................................... 531 to 1,611kHz
FM Usable Sensitivity (75Ω)
DIN Mono, S/N 30dB ................................................ 1.8µV
CD CHANGER SECTION
Type .......................................... 3-Disc Carousel Auto-changer
Signal Readout ...................................................... Non-contact,
3-beam semi-conductor laser pick-up
D/A Converter ............................................................. 1bit DAC
Filter ........................................ 8-time oversampling digital filter
Wow & Flutter .................................................... Unmeasurable
Laser Diode Properties
Meterial : GaALAs
Wavelength : 780 nm
Emission Duration : continuous
Laser Output : max. 44.6
* This output is the value measured at a distance of about
200 mm from the objective lens surface on the Optical
Pick-up Block.
TAPE DECK SECTION
Type ..................................................................... Auto Reverse
4-Track 2-Channel playback/recording stereo Cassette Deck
Heads
REC/PB ..................................................... Hard permalloy
Erase ................................................... Double Gap Ferrite
Motors
Main ......................................................... DC servo motor
Tray Loading ...................................................... DC motor
Wow & Flutter
W.PEAK ................................................................. ±0.19%
W.RMS ..................................................................... 0.09%
Frequency Response (–20dB)
/Normal tape ........................ 50 to 15,000Hz ± 3dB
I
Type
) tape ............... 50 to 16,000Hz ± 3dB
II
Type /High (CrO
2
S/N Ratio
NR off ......................................................................... 58dB
Dolby B NR on ........................................................... 66dB
MD SECTION
System ......................................... Minidisc digital audio system
Recording Method ........... Magnetic field moduration overwrite
Reading Method ............................ Non-contact optical pick up
Coding ............ ATRAC (Adaptive TRansform Acoustic Coding)
Laser Diode Properties
Meterial : GaALAs
Wavelength : 785 nm
Pulse time :
Read mode .............................. 0.8 mW continuous
Write mode ............................. max. 10 mW 0.5S
5
µ
W*
min. cycle 1.5S
Repetition
SPEAKER SECTION (NX-GX500)
Type ................................................. 3-Way Bass-reflex Design
Speakers .................................................. 13cm (5-1/8") woofer
Frequency Range ............................................. 60 to 20,000Hz
Maximum Input ................................................................ 240W
Impedance ............................................................................ 6Ω
Sound Pressure Level .................... 87dB/1m • 2.45V (1W/6Ω)
GENERAL
Power Supply
A model ...................................................... AC240V, 50Hz
B, G models ............................................... AC230V, 50Hz
Power Consumption ........................................................ 150W
(approx. 1W when set to the standby mode)
Dimensions (W X H X D)
GX-900 ............................................. 280 X 320 X 364mm
NX-GX500 ........................................ 200 X 320 X 218mm
Weight
GX-900 ............................................. 10.5kg (23 lbs. 2 oz)
NX-GX500 .................................... 3.8kg (8 lbs. 6 oz)/each
Accessories ............................................ AM loop antenna X 1
Remote Control Transmitter X 1
* Specifications subject to change without notice.
G .................. European model
B ....................... British model
A ................. Australian model
* Manufactured under license from Dolby Laboratories Li-
censing Corporation. "DOLBY" and the double-D symbol
V are trademarks of Dolby Laboratories Licensing Cor-
poration.
(Magnetic-Shielding Type)
5cm (1-15/16") tweeter
2cm (13/16") super tweeter
(11" X 12-5/8" X 14-5/16")
(7-7/8" X 12-5/8" X 8-9/16")
Indoor FM antenna X 1
Battery (size "AA", R06) X 2
Speaker Cord X 2