E-47
English
SPECIFICATIONS
As a part of policy of continuous improvement, YAMAHA reserves the right to make design and specification changes for
product improvement without prior notice. The performance specification figures indicated are nominal values of production
units.
■ Amplifier section
Minimum RMS Output Power per Channel
6 ohms, 1 kHz, 1% THD ................................................ 45W+45W
6 ohms, 1 kHz, 10% THD
[U.S.A., Canada, Singapore and General models only]
..................................................................................... 50W+50W
DIN Standard Output Power per Channel [Europe model only]
6 ohms, 1 kHz, 1% THD .......................................................... 45W
IEC Power [Europe model only]
6 ohms, 1 kHz, 0.1% THD ....................................................... 35W
Input Sensitivity/Impedance
AUX .................................................................. 175 mV/39 k-ohms
Headphone Output Impedance.......................................... 68 ohms
Total Harmonic Distortion (1 kHz)
AUX to SP OUT (22.5W/6 ohms) ......................................... 0.08%
Signal-to-Noise Ratio (IHF-A Network)
AUX (Input Shorted) ............................................................. 80 dB
Graphic Equalizer Characteristics
(100 Hz, 350 Hz, 1 kHz, 3.5 kHz, 10 kHz) ........................... ±10 dB
■ Tuner section
Tuning Range
FM
[U.S.A. and Canada models]...................... 87.5 to 107.9 MHz
[U.K., Europe, Australia, Singapore
and General models].................................. 87.5 to 108.0 MHz
AM (MW)
[U.S.A., Canada and General models]
....................................................................... 530 – 1,710 kHz
[U.K., Europe, Australia and Singapore models]
....................................................................... 531 – 1,611 kHz
LW
[U.K. and Europe models only] ..................... 153 – 288 kHz
Usable Sensitivity
FM (75 ohms)
(30 dB S/N Quieting, 1 kHz, 100% mod.)
[U.S.A., Canada, Singapore and General models]
.......................................................................1.5 µV (14.8 dBf)
(DIN, Mono, S/N 26 dB)
[U.K., Europe and Australia models]..........................1.8 µV
AM (MW)........................................................................ 280 µV/m
LW [U.K. and Europe models only]............................ 560 µV/m
■ CD player section
Type ................................................. 3 DISC Carousel Auto-changer
Signal Readout
........................... Non-contact, 3-beam semi-conductor laser pick-up
D/A Converter ................................................................... 1-bit DAC
Filter ................................................8-time oversampling digital filter
Wow and Flutter .........................................Below measurable limits
■ Tape deck section
Type ............................. Auto Reverse stereo double Cassette Deck
Deck 1: Playback only
Deck 2: Playback/Recording
Heads ................................................ PB, REC/PB : Hard Permalloy
Erase : Double Gap Ferrite
Motors ................................................................ DC servo motor x 2
Wow and Flutter ................................................. ע0.19%, W.PEAK
0.09%, W.RMS
Fast Winding Time (C-60 Tape) ........................ About 110 seconds
Frequency Response (–20 dB)
Type l (Normal)........................................... 30 – 15,000 Hz ע3 dB
Type ll (High).............................................. 30 – 16,000 Hz ע3 dB
Signal-to-Noise Ratio .................................. 58 dB (Dolby NR OFF)
66 dB (Dolby B NR ON)
Harmonic Distortion .......................................... No more than 0.8%
Channel Separation (Input Shorted 1 kHz)
................................................................................. More than 40 dB
Crosstalk (Input Shorted 125 Hz).......................... More than 55 dB
■ Speaker section
Type .................................................... Active Servo Processing type
Speakers ........................................................ 13 cm (5-1/8”) woofer
5 cm (1-15/16”) tweeter
2 cm (13/16”) super tweeter
Frequency Range .................................................... 60 – 20,000 Hz
Sound Pressure Level.......................................................... 86.0 dB
Maximum Power Handling Capacity..................................... 67.5W
Impedance ............................................................................ 6 ohms
■ General
Power Supply
[U.S.A. and Canada models] ............................ AC 120V, 60 Hz
[U.K., Europe
and Singapore
models] ............. AC 230V, 50 Hz
[Australia model] .............................................. AC 240V, 50 Hz
[General model] ...................... AC 110/120/220/240V, 60/50 Hz
Power consumption ............................................................... 110W
Dimensions (W x H x D)
GX-50 .......................................................... 280 x 320 x 360 mm
(11” x 12-5/8” x 14-3/16”)
NX-GX50 ..................................................... 200 x 320 x 243 mm
(7-7/8” x 12-5/8” x 9-9/16”)
Weight
GX-50 .......................................................... 9.3 kg (20 lbs. 7 oz.)
NX-GX50 ................................................ 3.5 kg (7 lbs. 11 oz.) x 2
