Yamaha GX-70 SPECIFICATIONS, ■ Video section, ■ Tuner section, ■CD player section, ■Tape deck section, ■ Amplifier section

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
Front L, R
6 ohms, 1 kHz, 1% THD .............................................	65W+65W
6 ohms, 1 kHz, 10% THD
[U.S.A., Canada, China, Singapore
and General models only] ......................................	75W+75W
Center
6 ohms, 1 kHz, 1% THD .......................................................	20W
Rear
6 ohms, 1 kHz, 1% THD .......................................................	20W

DIN Standard Output Power per Channel [Europe model only]

6 ohms, 1 kHz, 1% THD ..........................................................	65W
IEC Power [Europe model only]
6 ohms, 1 kHz, 0.1% THD .......................................................	50W
Input Sensitivity/Impedance
MD/AUX ............................................................	300 mV/23 k-ohms
Mic Input Sensitivity/Impedance
MIC ...................................................................	0.5 mV/4.7 k-ohms
Headphone Output Impedance..........................................	68 ohms
Total Harmonic Distortion (1 kHz)
MD/AUX to SP OUT (32.5W/6 ohms)...................................	0.08%
Signal-to-Noise Ratio (IHF-A Network)
MD/AUX (Input Shorted)
[U.S.A., Canada, Europe and U.K. models] .....................	85 dB
[Australia, China, Singapore and General models]
.............................................................................................	75 dB
Graphic Equalizer Characteristics
(100 Hz, 350 Hz, 1 kHz, 3.5 kHz, 10 kHz) ...........................	±10 dB

■ Video section

Video Signal Level ..................................................	1 Vp-p/75 ohms
Maximum Input Level ............................................	1.5 Vp-p or more
Signal-to-Noise Ratio ................................................	50 dB or more
Monitor Out Frequency Response ..............	5 Hz to 10 MHz, –3 dB

■ Tuner section

Tuning Range
FM
[U.S.A. and Canada models] ...........................	87.5 to 107.9 MHz
[U.K., Europe, Australia, China, 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, China 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, China, Singapore and General models]
..........................................................................	1.5 ∝V (14.8 dBf)
(DIN, Mono, S/N 26 dB)
[U.K., Europe and Australia models] .............................	1.8 ∝V
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 .................................................		50.19%, 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 53 dB
Type ll (High) ..............................................		30 – 16,000 Hz 53 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

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