User:Rutigor/Pioneer SX-434

The Pioneer SX-434 is a radio receiver that Pioneer Electronics Corporation introduced in 1974 to replace the SX-424. It was built through for the following two years before being superseeded by the SX-450 in 1975. It was rated at 15 watts per channel.

=Features=
 * The addition of a channel balance knob which was absent on the SX-424.
 * Pushbuttons were aluminum, not plastic.

FM tuner part

 * Practical speed (IHF) 	        1.9 microvolts
 * Capture ratio (IHF) 	        1.5dB
 * Effective selectivity (IHF) 	 60dB
 * S/N 	                        70dB
 * Image stonewalling ratio (82MHz) 60dB or more
 * IF stonewalling ratio (82MHz)   90dB or more
 * Spurious stonewalling ratio 	 75dB or more
 * AM supression ratio 	        50dB
 * THD 	                        mono: 0.2% or less
 * stereo: 0.4% or less


 * Frequency characteristic 	 20Hz - 15kHz, and +0.2 -2.0 dB
 * 50Hz - 10kHz, and +0.2 -0.5 dB


 * Stereo separation 	        1kHz : 40dB or more
 * 50Hz-10kHz : 30dB or more


 * Carrier leakage supression ratio 	40dB
 * Antenna 	                300-ohm balance type,
 * 75-ohm unbalance type


 * Muting                        ON-OFF

AM tuner part

 * Practical speed (IHF)         15 microvolts
 * Selectivity 	                35dB or more
 * S/N 	                        50dB or more
 * Image stonewalling ratio 	 40dB or more
 * IF stonewalling ratio         50dB or more
 * Antenna 	                Ferrite bar antenna

Amplifier part
Circuit system 	1 step of differential whole page hardwired-connection pure complimentary OCL
 * Effective output:             40Hz - 20000Hz, both channel drive : 	15W+15W (4ohm)
 * 15W+15W (8ohm)
 * 1kHz, both channel drive : 	18W+18W (4ohm)
 * 16W+16W (8ohm)
 * 1kHz, a one-side-channel drive 	23W+23W (4ohm)
 * 19W+19W (8ohm)


 * THD 	                        At the time of an effective output: 0.8% or less
 * At the time of 1W output: 0.1% or less


 * Cross modulation distortion   At the time of an effective output: 0.8% or less
 * At the time of 1W output: 0.1% or less


 * Output bandwidth (IHF, both channel drive) 	10Hz - 70000Hz (0.8% of distortion)
 * Dumping factor (1kHz, 8ohm)     25 or more
 * Remains noise (8 ohm, pre + power amplifier) 	0.5mV or less
 * Input sensitivity/impedance 	 Phono: 2.5mV / 50kohm
 * Phono maximum permissible input (rms/p-p): 100mV/280mV
 * MIC: 10mV / 60kohm
 * AUX: 150mV / 80kohm
 * TapePB: 150mV / 80kohm
 * TapePB(DIN termination): 150mV / 80kohm


 * An Output voltage/impedance 	 Tape Rec:150mV
 * Tape Rec(DIN termination): 30mV / 80kohm
 * Speaker:                      A, B, A+B (4ohm-16ohm)
 * HeadPhone                     4-16ohms


 * Frequency characteristic 	 Phono (RIAA deflection): 30Hz - 15000Hz, ±1dB
 * MIC, AUX, Tape PB: 30Hz - 25000Hz, ±1dB


 * Tone control 	                Bass: +9dB, -8dB (100Hz)
 * Treble: +5dB, -7dB (10kHz)


 * Loudness contour 	        +10dB(100Hz)
 * + 5dB (10kHz, volume 40dB o'clock)


 * S/N (An IHF short circuit, A network) 	Phono: 70dB or more
 * MIC: 70dB or more
 * AUX, Tape PB: 90dB or more

Synthesis

 * Supply voltage 	       AC100V, 50Hz/60Hz
 * Power dissipation 	60W
 * Maximum electric power consumption 	110W
 * Power receptacle 	Power-switch interlock 1. un-interlocking 2.
 * Dimensions 	       Width 430x height 140x depth of 347mm
 * Weight 	               8.1kg

The SX-434 was a middle-range reciever listed for $239.95.

= References = 

= External links = | Audio Database