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>