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

<http://audio-database.com/PIONEER-EXCLUSIVE/amp/sx-434-e.html>

External links

[1]